From 699b6cdf01babd86d56206667a35491d2c4d00f1 Mon Sep 17 00:00:00 2001 From: Veikka Tuominen Date: Sat, 12 Jun 2021 21:30:36 +0300 Subject: [PATCH 1/2] translate-c: move utility functions to a separate namespace --- lib/std/c.zig | 1 - lib/std/meta.zig | 376 ----------------- lib/std/zig.zig | 4 + .../{c/builtins.zig => zig/c_builtins.zig} | 0 lib/std/zig/c_translation.zig | 385 ++++++++++++++++++ src/translate_c.zig | 58 +-- src/translate_c/ast.zig | 87 ++-- test/translate_c.zig | 66 +-- 8 files changed, 501 insertions(+), 476 deletions(-) rename lib/std/{c/builtins.zig => zig/c_builtins.zig} (100%) create mode 100644 lib/std/zig/c_translation.zig diff --git a/lib/std/c.zig b/lib/std/c.zig index f0e53d8747..74b92ad28a 100644 --- a/lib/std/c.zig +++ b/lib/std/c.zig @@ -10,7 +10,6 @@ const page_size = std.mem.page_size; pub const tokenizer = @import("c/tokenizer.zig"); pub const Token = tokenizer.Token; pub const Tokenizer = tokenizer.Tokenizer; -pub const builtins = @import("c/builtins.zig"); test { _ = tokenizer; diff --git a/lib/std/meta.zig b/lib/std/meta.zig index e738ad6efb..e19208cd84 100644 --- a/lib/std/meta.zig +++ b/lib/std/meta.zig @@ -884,319 +884,6 @@ pub fn Vector(comptime len: u32, comptime child: type) type { }); } -/// Given a type and value, cast the value to the type as c would. -/// This is for translate-c and is not intended for general use. -pub fn cast(comptime DestType: type, target: anytype) DestType { - // this function should behave like transCCast in translate-c, except it's for macros and enums - const SourceType = @TypeOf(target); - switch (@typeInfo(DestType)) { - .Pointer => return castToPtr(DestType, SourceType, target), - .Optional => |dest_opt| { - if (@typeInfo(dest_opt.child) == .Pointer) { - return castToPtr(DestType, SourceType, target); - } - }, - .Enum => |enum_type| { - if (@typeInfo(SourceType) == .Int or @typeInfo(SourceType) == .ComptimeInt) { - const intermediate = cast(enum_type.tag_type, target); - return @intToEnum(DestType, intermediate); - } - }, - .Int => { - switch (@typeInfo(SourceType)) { - .Pointer => { - return castInt(DestType, @ptrToInt(target)); - }, - .Optional => |opt| { - if (@typeInfo(opt.child) == .Pointer) { - return castInt(DestType, @ptrToInt(target)); - } - }, - .Enum => { - return castInt(DestType, @enumToInt(target)); - }, - .Int => { - return castInt(DestType, target); - }, - else => {}, - } - }, - else => {}, - } - return @as(DestType, target); -} - -fn castInt(comptime DestType: type, target: anytype) DestType { - const dest = @typeInfo(DestType).Int; - const source = @typeInfo(@TypeOf(target)).Int; - - if (dest.bits < source.bits) - return @bitCast(DestType, @truncate(Int(source.signedness, dest.bits), target)) - else - return @bitCast(DestType, @as(Int(source.signedness, dest.bits), target)); -} - -fn castPtr(comptime DestType: type, target: anytype) DestType { - const dest = ptrInfo(DestType); - const source = ptrInfo(@TypeOf(target)); - - if (source.is_const and !dest.is_const or source.is_volatile and !dest.is_volatile) - return @intToPtr(DestType, @ptrToInt(target)) - else if (@typeInfo(dest.child) == .Opaque) - // dest.alignment would error out - return @ptrCast(DestType, target) - else - return @ptrCast(DestType, @alignCast(dest.alignment, target)); -} - -fn castToPtr(comptime DestType: type, comptime SourceType: type, target: anytype) DestType { - switch (@typeInfo(SourceType)) { - .Int => { - return @intToPtr(DestType, castInt(usize, target)); - }, - .ComptimeInt => { - if (target < 0) - return @intToPtr(DestType, @bitCast(usize, @intCast(isize, target))) - else - return @intToPtr(DestType, @intCast(usize, target)); - }, - .Pointer => { - return castPtr(DestType, target); - }, - .Optional => |target_opt| { - if (@typeInfo(target_opt.child) == .Pointer) { - return castPtr(DestType, target); - } - }, - else => {}, - } - return @as(DestType, target); -} - -fn ptrInfo(comptime PtrType: type) TypeInfo.Pointer { - return switch (@typeInfo(PtrType)) { - .Optional => |opt_info| @typeInfo(opt_info.child).Pointer, - .Pointer => |ptr_info| ptr_info, - else => unreachable, - }; -} - -test "std.meta.cast" { - const E = enum(u2) { - Zero, - One, - Two, - }; - - var i = @as(i64, 10); - - try testing.expect(cast(*u8, 16) == @intToPtr(*u8, 16)); - try testing.expect(cast(*u64, &i).* == @as(u64, 10)); - try testing.expect(cast(*i64, @as(?*align(1) i64, &i)) == &i); - - try testing.expect(cast(?*u8, 2) == @intToPtr(*u8, 2)); - try testing.expect(cast(?*i64, @as(*align(1) i64, &i)) == &i); - try testing.expect(cast(?*i64, @as(?*align(1) i64, &i)) == &i); - - try testing.expect(cast(E, 1) == .One); - - try testing.expectEqual(@as(u32, 4), cast(u32, @intToPtr(*u32, 4))); - try testing.expectEqual(@as(u32, 4), cast(u32, @intToPtr(?*u32, 4))); - try testing.expectEqual(@as(u32, 10), cast(u32, @as(u64, 10))); - try testing.expectEqual(@as(u8, 2), cast(u8, E.Two)); - - try testing.expectEqual(@bitCast(i32, @as(u32, 0x8000_0000)), cast(i32, @as(u32, 0x8000_0000))); - - try testing.expectEqual(@intToPtr(*u8, 2), cast(*u8, @intToPtr(*const u8, 2))); - try testing.expectEqual(@intToPtr(*u8, 2), cast(*u8, @intToPtr(*volatile u8, 2))); - - try testing.expectEqual(@intToPtr(?*c_void, 2), cast(?*c_void, @intToPtr(*u8, 2))); - - const C_ENUM = enum(c_int) { - A = 0, - B, - C, - _, - }; - try testing.expectEqual(cast(C_ENUM, @as(i64, -1)), @intToEnum(C_ENUM, -1)); - try testing.expectEqual(cast(C_ENUM, @as(i8, 1)), .B); - try testing.expectEqual(cast(C_ENUM, @as(u64, 1)), .B); - try testing.expectEqual(cast(C_ENUM, @as(u64, 42)), @intToEnum(C_ENUM, 42)); - - var foo: c_int = -1; - try testing.expect(cast(*c_void, -1) == @intToPtr(*c_void, @bitCast(usize, @as(isize, -1)))); - try testing.expect(cast(*c_void, foo) == @intToPtr(*c_void, @bitCast(usize, @as(isize, -1)))); - try testing.expect(cast(?*c_void, -1) == @intToPtr(?*c_void, @bitCast(usize, @as(isize, -1)))); - try testing.expect(cast(?*c_void, foo) == @intToPtr(?*c_void, @bitCast(usize, @as(isize, -1)))); -} - -/// Given a value returns its size as C's sizeof operator would. -/// This is for translate-c and is not intended for general use. -pub fn sizeof(target: anytype) usize { - const T: type = if (@TypeOf(target) == type) target else @TypeOf(target); - switch (@typeInfo(T)) { - .Float, .Int, .Struct, .Union, .Enum, .Array, .Bool, .Vector => return @sizeOf(T), - .Fn => { - // sizeof(main) returns 1, sizeof(&main) returns pointer size. - // We cannot distinguish those types in Zig, so use pointer size. - return @sizeOf(T); - }, - .Null => return @sizeOf(*c_void), - .Void => { - // Note: sizeof(void) is 1 on clang/gcc and 0 on MSVC. - return 1; - }, - .Opaque => { - if (T == c_void) { - // Note: sizeof(void) is 1 on clang/gcc and 0 on MSVC. - return 1; - } else { - @compileError("Cannot use C sizeof on opaque type " ++ @typeName(T)); - } - }, - .Optional => |opt| { - if (@typeInfo(opt.child) == .Pointer) { - return sizeof(opt.child); - } else { - @compileError("Cannot use C sizeof on non-pointer optional " ++ @typeName(T)); - } - }, - .Pointer => |ptr| { - if (ptr.size == .Slice) { - @compileError("Cannot use C sizeof on slice type " ++ @typeName(T)); - } - // for strings, sizeof("a") returns 2. - // normal pointer decay scenarios from C are handled - // in the .Array case above, but strings remain literals - // and are therefore always pointers, so they need to be - // specially handled here. - if (ptr.size == .One and ptr.is_const and @typeInfo(ptr.child) == .Array) { - const array_info = @typeInfo(ptr.child).Array; - if ((array_info.child == u8 or array_info.child == u16) and - array_info.sentinel != null and - array_info.sentinel.? == 0) - { - // length of the string plus one for the null terminator. - return (array_info.len + 1) * @sizeOf(array_info.child); - } - } - // When zero sized pointers are removed, this case will no - // longer be reachable and can be deleted. - if (@sizeOf(T) == 0) { - return @sizeOf(*c_void); - } - return @sizeOf(T); - }, - .ComptimeFloat => return @sizeOf(f64), // TODO c_double #3999 - .ComptimeInt => { - // TODO to get the correct result we have to translate - // `1073741824 * 4` as `int(1073741824) *% int(4)` since - // sizeof(1073741824 * 4) != sizeof(4294967296). - - // TODO test if target fits in int, long or long long - return @sizeOf(c_int); - }, - else => @compileError("std.meta.sizeof does not support type " ++ @typeName(T)), - } -} - -test "sizeof" { - const E = enum(c_int) { One, _ }; - const S = extern struct { a: u32 }; - - const ptr_size = @sizeOf(*c_void); - - try testing.expect(sizeof(u32) == 4); - try testing.expect(sizeof(@as(u32, 2)) == 4); - try testing.expect(sizeof(2) == @sizeOf(c_int)); - - try testing.expect(sizeof(2.0) == @sizeOf(f64)); - - try testing.expect(sizeof(E) == @sizeOf(c_int)); - try testing.expect(sizeof(E.One) == @sizeOf(c_int)); - - try testing.expect(sizeof(S) == 4); - - try testing.expect(sizeof([_]u32{ 4, 5, 6 }) == 12); - try testing.expect(sizeof([3]u32) == 12); - try testing.expect(sizeof([3:0]u32) == 16); - try testing.expect(sizeof(&[_]u32{ 4, 5, 6 }) == ptr_size); - - try testing.expect(sizeof(*u32) == ptr_size); - try testing.expect(sizeof([*]u32) == ptr_size); - try testing.expect(sizeof([*c]u32) == ptr_size); - try testing.expect(sizeof(?*u32) == ptr_size); - try testing.expect(sizeof(?[*]u32) == ptr_size); - try testing.expect(sizeof(*c_void) == ptr_size); - try testing.expect(sizeof(*void) == ptr_size); - try testing.expect(sizeof(null) == ptr_size); - - try testing.expect(sizeof("foobar") == 7); - try testing.expect(sizeof(&[_:0]u16{ 'f', 'o', 'o', 'b', 'a', 'r' }) == 14); - try testing.expect(sizeof(*const [4:0]u8) == 5); - try testing.expect(sizeof(*[4:0]u8) == ptr_size); - try testing.expect(sizeof([*]const [4:0]u8) == ptr_size); - try testing.expect(sizeof(*const *const [4:0]u8) == ptr_size); - try testing.expect(sizeof(*const [4]u8) == ptr_size); - - try testing.expect(sizeof(sizeof) == @sizeOf(@TypeOf(sizeof))); - - try testing.expect(sizeof(void) == 1); - try testing.expect(sizeof(c_void) == 1); -} - -pub const CIntLiteralRadix = enum { decimal, octal, hexadecimal }; - -fn PromoteIntLiteralReturnType(comptime SuffixType: type, comptime number: comptime_int, comptime radix: CIntLiteralRadix) type { - const signed_decimal = [_]type{ c_int, c_long, c_longlong }; - const signed_oct_hex = [_]type{ c_int, c_uint, c_long, c_ulong, c_longlong, c_ulonglong }; - const unsigned = [_]type{ c_uint, c_ulong, c_ulonglong }; - - const list: []const type = if (@typeInfo(SuffixType).Int.signedness == .unsigned) - &unsigned - else if (radix == .decimal) - &signed_decimal - else - &signed_oct_hex; - - var pos = mem.indexOfScalar(type, list, SuffixType).?; - - while (pos < list.len) : (pos += 1) { - if (number >= math.minInt(list[pos]) and number <= math.maxInt(list[pos])) { - return list[pos]; - } - } - @compileError("Integer literal is too large"); -} - -/// Promote the type of an integer literal until it fits as C would. -/// This is for translate-c and is not intended for general use. -pub fn promoteIntLiteral( - comptime SuffixType: type, - comptime number: comptime_int, - comptime radix: CIntLiteralRadix, -) PromoteIntLiteralReturnType(SuffixType, number, radix) { - return number; -} - -test "promoteIntLiteral" { - const signed_hex = promoteIntLiteral(c_int, math.maxInt(c_int) + 1, .hexadecimal); - try testing.expectEqual(c_uint, @TypeOf(signed_hex)); - - if (math.maxInt(c_longlong) == math.maxInt(c_int)) return; - - const signed_decimal = promoteIntLiteral(c_int, math.maxInt(c_int) + 1, .decimal); - const unsigned = promoteIntLiteral(c_uint, math.maxInt(c_uint) + 1, .hexadecimal); - - if (math.maxInt(c_long) > math.maxInt(c_int)) { - try testing.expectEqual(c_long, @TypeOf(signed_decimal)); - try testing.expectEqual(c_ulong, @TypeOf(unsigned)); - } else { - try testing.expectEqual(c_longlong, @TypeOf(signed_decimal)); - try testing.expectEqual(c_ulonglong, @TypeOf(unsigned)); - } -} - /// For a given function type, returns a tuple type which fields will /// correspond to the argument types. /// @@ -1316,38 +1003,6 @@ pub fn globalOption(comptime name: []const u8, comptime T: type) ?T { return @as(T, @field(root, name)); } -/// This function is for translate-c and is not intended for general use. -/// Convert from clang __builtin_shufflevector index to Zig @shuffle index -/// clang requires __builtin_shufflevector index arguments to be integer constants. -/// negative values for `this_index` indicate "don't care" so we arbitrarily choose 0 -/// clang enforces that `this_index` is less than the total number of vector elements -/// See https://ziglang.org/documentation/master/#shuffle -/// See https://clang.llvm.org/docs/LanguageExtensions.html#langext-builtin-shufflevector -pub fn shuffleVectorIndex(comptime this_index: c_int, comptime source_vector_len: usize) i32 { - if (this_index <= 0) return 0; - - const positive_index = @intCast(usize, this_index); - if (positive_index < source_vector_len) return @intCast(i32, this_index); - const b_index = positive_index - source_vector_len; - return ~@intCast(i32, b_index); -} - -test "shuffleVectorIndex" { - const vector_len: usize = 4; - - try testing.expect(shuffleVectorIndex(-1, vector_len) == 0); - - try testing.expect(shuffleVectorIndex(0, vector_len) == 0); - try testing.expect(shuffleVectorIndex(1, vector_len) == 1); - try testing.expect(shuffleVectorIndex(2, vector_len) == 2); - try testing.expect(shuffleVectorIndex(3, vector_len) == 3); - - try testing.expect(shuffleVectorIndex(4, vector_len) == -1); - try testing.expect(shuffleVectorIndex(5, vector_len) == -2); - try testing.expect(shuffleVectorIndex(6, vector_len) == -3); - try testing.expect(shuffleVectorIndex(7, vector_len) == -4); -} - /// Returns whether `error_union` contains an error. pub fn isError(error_union: anytype) bool { return if (error_union) |_| false else |_| true; @@ -1357,34 +1012,3 @@ test "isError" { try std.testing.expect(isError(math.absInt(@as(i8, -128)))); try std.testing.expect(!isError(math.absInt(@as(i8, -127)))); } - -/// This function is for translate-c and is not intended for general use. -/// Constructs a [*c] pointer with the const and volatile annotations -/// from SelfType for pointing to a C flexible array of ElementType. -pub fn FlexibleArrayType(comptime SelfType: type, ElementType: type) type { - switch (@typeInfo(SelfType)) { - .Pointer => |ptr| { - return @Type(TypeInfo{ .Pointer = .{ - .size = .C, - .is_const = ptr.is_const, - .is_volatile = ptr.is_volatile, - .alignment = @alignOf(ElementType), - .child = ElementType, - .is_allowzero = true, - .sentinel = null, - } }); - }, - else => |info| @compileError("Invalid self type \"" ++ @tagName(info) ++ "\" for flexible array getter: " ++ @typeName(SelfType)), - } -} - -test "Flexible Array Type" { - const Container = extern struct { - size: usize, - }; - - try testing.expectEqual(FlexibleArrayType(*Container, c_int), [*c]c_int); - try testing.expectEqual(FlexibleArrayType(*const Container, c_int), [*c]const c_int); - try testing.expectEqual(FlexibleArrayType(*volatile Container, c_int), [*c]volatile c_int); - try testing.expectEqual(FlexibleArrayType(*const volatile Container, c_int), [*c]const volatile c_int); -} diff --git a/lib/std/zig.zig b/lib/std/zig.zig index 083803e0c8..ebb16c9c15 100644 --- a/lib/std/zig.zig +++ b/lib/std/zig.zig @@ -16,6 +16,10 @@ pub const ast = @import("zig/ast.zig"); pub const system = @import("zig/system.zig"); pub const CrossTarget = @import("zig/cross_target.zig").CrossTarget; +// Files needed by translate-c. +pub const c_builtins = @import("zig/c_builtins.zig"); +pub const c_translation = @import("zig/c_translation.zig"); + pub const SrcHash = [16]u8; pub fn hashSrc(src: []const u8) SrcHash { diff --git a/lib/std/c/builtins.zig b/lib/std/zig/c_builtins.zig similarity index 100% rename from lib/std/c/builtins.zig rename to lib/std/zig/c_builtins.zig diff --git a/lib/std/zig/c_translation.zig b/lib/std/zig/c_translation.zig new file mode 100644 index 0000000000..6e0f721b4f --- /dev/null +++ b/lib/std/zig/c_translation.zig @@ -0,0 +1,385 @@ +// SPDX-License-Identifier: MIT +// Copyright (c) 2015-2021 Zig Contributors +// This file is part of [zig](https://ziglang.org/), which is MIT licensed. +// The MIT license requires this copyright notice to be included in all copies +// and substantial portions of the software. + +const std = @import("std"); +const testing = std.testing; +const math = std.math; +const mem = std.mem; + +/// Given a type and value, cast the value to the type as c would. +pub fn cast(comptime DestType: type, target: anytype) DestType { + // this function should behave like transCCast in translate-c, except it's for macros and enums + const SourceType = @TypeOf(target); + switch (@typeInfo(DestType)) { + .Fn, .Pointer => return castToPtr(DestType, SourceType, target), + .Optional => |dest_opt| { + if (@typeInfo(dest_opt.child) == .Pointer or @typeInfo(dest_opt.child) == .Fn) { + return castToPtr(DestType, SourceType, target); + } + }, + .Enum => |enum_type| { + if (@typeInfo(SourceType) == .Int or @typeInfo(SourceType) == .ComptimeInt) { + const intermediate = cast(enum_type.tag_type, target); + return @intToEnum(DestType, intermediate); + } + }, + .Int => { + switch (@typeInfo(SourceType)) { + .Pointer => { + return castInt(DestType, @ptrToInt(target)); + }, + .Optional => |opt| { + if (@typeInfo(opt.child) == .Pointer) { + return castInt(DestType, @ptrToInt(target)); + } + }, + .Enum => { + return castInt(DestType, @enumToInt(target)); + }, + .Int => { + return castInt(DestType, target); + }, + else => {}, + } + }, + else => {}, + } + return @as(DestType, target); +} + +fn castInt(comptime DestType: type, target: anytype) DestType { + const dest = @typeInfo(DestType).Int; + const source = @typeInfo(@TypeOf(target)).Int; + + if (dest.bits < source.bits) + return @bitCast(DestType, @truncate(std.meta.Int(source.signedness, dest.bits), target)) + else + return @bitCast(DestType, @as(std.meta.Int(source.signedness, dest.bits), target)); +} + +fn castPtr(comptime DestType: type, target: anytype) DestType { + const dest = ptrInfo(DestType); + const source = ptrInfo(@TypeOf(target)); + + if (source.is_const and !dest.is_const or source.is_volatile and !dest.is_volatile) + return @intToPtr(DestType, @ptrToInt(target)) + else if (@typeInfo(dest.child) == .Opaque) + // dest.alignment would error out + return @ptrCast(DestType, target) + else + return @ptrCast(DestType, @alignCast(dest.alignment, target)); +} + +fn castToPtr(comptime DestType: type, comptime SourceType: type, target: anytype) DestType { + switch (@typeInfo(SourceType)) { + .Int => { + return @intToPtr(DestType, castInt(usize, target)); + }, + .ComptimeInt => { + if (target < 0) + return @intToPtr(DestType, @bitCast(usize, @intCast(isize, target))) + else + return @intToPtr(DestType, @intCast(usize, target)); + }, + .Pointer => { + return castPtr(DestType, target); + }, + .Optional => |target_opt| { + if (@typeInfo(target_opt.child) == .Pointer) { + return castPtr(DestType, target); + } + }, + else => {}, + } + return @as(DestType, target); +} + +fn ptrInfo(comptime PtrType: type) std.builtin.TypeInfo.Pointer { + return switch (@typeInfo(PtrType)) { + .Optional => |opt_info| @typeInfo(opt_info.child).Pointer, + .Pointer => |ptr_info| ptr_info, + else => unreachable, + }; +} + +test "cast" { + const E = enum(u2) { + Zero, + One, + Two, + }; + + var i = @as(i64, 10); + + try testing.expect(cast(*u8, 16) == @intToPtr(*u8, 16)); + try testing.expect(cast(*u64, &i).* == @as(u64, 10)); + try testing.expect(cast(*i64, @as(?*align(1) i64, &i)) == &i); + + try testing.expect(cast(?*u8, 2) == @intToPtr(*u8, 2)); + try testing.expect(cast(?*i64, @as(*align(1) i64, &i)) == &i); + try testing.expect(cast(?*i64, @as(?*align(1) i64, &i)) == &i); + + try testing.expect(cast(E, 1) == .One); + + try testing.expectEqual(@as(u32, 4), cast(u32, @intToPtr(*u32, 4))); + try testing.expectEqual(@as(u32, 4), cast(u32, @intToPtr(?*u32, 4))); + try testing.expectEqual(@as(u32, 10), cast(u32, @as(u64, 10))); + try testing.expectEqual(@as(u8, 2), cast(u8, E.Two)); + + try testing.expectEqual(@bitCast(i32, @as(u32, 0x8000_0000)), cast(i32, @as(u32, 0x8000_0000))); + + try testing.expectEqual(@intToPtr(*u8, 2), cast(*u8, @intToPtr(*const u8, 2))); + try testing.expectEqual(@intToPtr(*u8, 2), cast(*u8, @intToPtr(*volatile u8, 2))); + + try testing.expectEqual(@intToPtr(?*c_void, 2), cast(?*c_void, @intToPtr(*u8, 2))); + + const C_ENUM = enum(c_int) { + A = 0, + B, + C, + _, + }; + try testing.expectEqual(cast(C_ENUM, @as(i64, -1)), @intToEnum(C_ENUM, -1)); + try testing.expectEqual(cast(C_ENUM, @as(i8, 1)), .B); + try testing.expectEqual(cast(C_ENUM, @as(u64, 1)), .B); + try testing.expectEqual(cast(C_ENUM, @as(u64, 42)), @intToEnum(C_ENUM, 42)); + + var foo: c_int = -1; + try testing.expect(cast(*c_void, -1) == @intToPtr(*c_void, @bitCast(usize, @as(isize, -1)))); + try testing.expect(cast(*c_void, foo) == @intToPtr(*c_void, @bitCast(usize, @as(isize, -1)))); + try testing.expect(cast(?*c_void, -1) == @intToPtr(?*c_void, @bitCast(usize, @as(isize, -1)))); + try testing.expect(cast(?*c_void, foo) == @intToPtr(?*c_void, @bitCast(usize, @as(isize, -1)))); + + const FnPtr = ?fn (*c_void) void; + try testing.expect(cast(FnPtr, 0) == @intToPtr(FnPtr, @as(usize, 0))); + try testing.expect(cast(FnPtr, foo) == @intToPtr(FnPtr, @bitCast(usize, @as(isize, -1)))); +} + +/// Given a value returns its size as C's sizeof operator would. +pub fn sizeof(target: anytype) usize { + const T: type = if (@TypeOf(target) == type) target else @TypeOf(target); + switch (@typeInfo(T)) { + .Float, .Int, .Struct, .Union, .Enum, .Array, .Bool, .Vector => return @sizeOf(T), + .Fn => { + // sizeof(main) returns 1, sizeof(&main) returns pointer size. + // We cannot distinguish those types in Zig, so use pointer size. + return @sizeOf(T); + }, + .Null => return @sizeOf(*c_void), + .Void => { + // Note: sizeof(void) is 1 on clang/gcc and 0 on MSVC. + return 1; + }, + .Opaque => { + if (T == c_void) { + // Note: sizeof(void) is 1 on clang/gcc and 0 on MSVC. + return 1; + } else { + @compileError("Cannot use C sizeof on opaque type " ++ @typeName(T)); + } + }, + .Optional => |opt| { + if (@typeInfo(opt.child) == .Pointer) { + return sizeof(opt.child); + } else { + @compileError("Cannot use C sizeof on non-pointer optional " ++ @typeName(T)); + } + }, + .Pointer => |ptr| { + if (ptr.size == .Slice) { + @compileError("Cannot use C sizeof on slice type " ++ @typeName(T)); + } + // for strings, sizeof("a") returns 2. + // normal pointer decay scenarios from C are handled + // in the .Array case above, but strings remain literals + // and are therefore always pointers, so they need to be + // specially handled here. + if (ptr.size == .One and ptr.is_const and @typeInfo(ptr.child) == .Array) { + const array_info = @typeInfo(ptr.child).Array; + if ((array_info.child == u8 or array_info.child == u16) and + array_info.sentinel != null and + array_info.sentinel.? == 0) + { + // length of the string plus one for the null terminator. + return (array_info.len + 1) * @sizeOf(array_info.child); + } + } + // When zero sized pointers are removed, this case will no + // longer be reachable and can be deleted. + if (@sizeOf(T) == 0) { + return @sizeOf(*c_void); + } + return @sizeOf(T); + }, + .ComptimeFloat => return @sizeOf(f64), // TODO c_double #3999 + .ComptimeInt => { + // TODO to get the correct result we have to translate + // `1073741824 * 4` as `int(1073741824) *% int(4)` since + // sizeof(1073741824 * 4) != sizeof(4294967296). + + // TODO test if target fits in int, long or long long + return @sizeOf(c_int); + }, + else => @compileError("std.meta.sizeof does not support type " ++ @typeName(T)), + } +} + +test "sizeof" { + const E = enum(c_int) { One, _ }; + const S = extern struct { a: u32 }; + + const ptr_size = @sizeOf(*c_void); + + try testing.expect(sizeof(u32) == 4); + try testing.expect(sizeof(@as(u32, 2)) == 4); + try testing.expect(sizeof(2) == @sizeOf(c_int)); + + try testing.expect(sizeof(2.0) == @sizeOf(f64)); + + try testing.expect(sizeof(E) == @sizeOf(c_int)); + try testing.expect(sizeof(E.One) == @sizeOf(c_int)); + + try testing.expect(sizeof(S) == 4); + + try testing.expect(sizeof([_]u32{ 4, 5, 6 }) == 12); + try testing.expect(sizeof([3]u32) == 12); + try testing.expect(sizeof([3:0]u32) == 16); + try testing.expect(sizeof(&[_]u32{ 4, 5, 6 }) == ptr_size); + + try testing.expect(sizeof(*u32) == ptr_size); + try testing.expect(sizeof([*]u32) == ptr_size); + try testing.expect(sizeof([*c]u32) == ptr_size); + try testing.expect(sizeof(?*u32) == ptr_size); + try testing.expect(sizeof(?[*]u32) == ptr_size); + try testing.expect(sizeof(*c_void) == ptr_size); + try testing.expect(sizeof(*void) == ptr_size); + try testing.expect(sizeof(null) == ptr_size); + + try testing.expect(sizeof("foobar") == 7); + try testing.expect(sizeof(&[_:0]u16{ 'f', 'o', 'o', 'b', 'a', 'r' }) == 14); + try testing.expect(sizeof(*const [4:0]u8) == 5); + try testing.expect(sizeof(*[4:0]u8) == ptr_size); + try testing.expect(sizeof([*]const [4:0]u8) == ptr_size); + try testing.expect(sizeof(*const *const [4:0]u8) == ptr_size); + try testing.expect(sizeof(*const [4]u8) == ptr_size); + + try testing.expect(sizeof(sizeof) == @sizeOf(@TypeOf(sizeof))); + + try testing.expect(sizeof(void) == 1); + try testing.expect(sizeof(c_void) == 1); +} + +pub const CIntLiteralRadix = enum { decimal, octal, hexadecimal }; + +fn PromoteIntLiteralReturnType(comptime SuffixType: type, comptime number: comptime_int, comptime radix: CIntLiteralRadix) type { + const signed_decimal = [_]type{ c_int, c_long, c_longlong }; + const signed_oct_hex = [_]type{ c_int, c_uint, c_long, c_ulong, c_longlong, c_ulonglong }; + const unsigned = [_]type{ c_uint, c_ulong, c_ulonglong }; + + const list: []const type = if (@typeInfo(SuffixType).Int.signedness == .unsigned) + &unsigned + else if (radix == .decimal) + &signed_decimal + else + &signed_oct_hex; + + var pos = mem.indexOfScalar(type, list, SuffixType).?; + + while (pos < list.len) : (pos += 1) { + if (number >= math.minInt(list[pos]) and number <= math.maxInt(list[pos])) { + return list[pos]; + } + } + @compileError("Integer literal is too large"); +} + +/// Promote the type of an integer literal until it fits as C would. +pub fn promoteIntLiteral( + comptime SuffixType: type, + comptime number: comptime_int, + comptime radix: CIntLiteralRadix, +) PromoteIntLiteralReturnType(SuffixType, number, radix) { + return number; +} + +test "promoteIntLiteral" { + const signed_hex = promoteIntLiteral(c_int, math.maxInt(c_int) + 1, .hexadecimal); + try testing.expectEqual(c_uint, @TypeOf(signed_hex)); + + if (math.maxInt(c_longlong) == math.maxInt(c_int)) return; + + const signed_decimal = promoteIntLiteral(c_int, math.maxInt(c_int) + 1, .decimal); + const unsigned = promoteIntLiteral(c_uint, math.maxInt(c_uint) + 1, .hexadecimal); + + if (math.maxInt(c_long) > math.maxInt(c_int)) { + try testing.expectEqual(c_long, @TypeOf(signed_decimal)); + try testing.expectEqual(c_ulong, @TypeOf(unsigned)); + } else { + try testing.expectEqual(c_longlong, @TypeOf(signed_decimal)); + try testing.expectEqual(c_ulonglong, @TypeOf(unsigned)); + } +} + +/// Convert from clang __builtin_shufflevector index to Zig @shuffle index +/// clang requires __builtin_shufflevector index arguments to be integer constants. +/// negative values for `this_index` indicate "don't care" so we arbitrarily choose 0 +/// clang enforces that `this_index` is less than the total number of vector elements +/// See https://ziglang.org/documentation/master/#shuffle +/// See https://clang.llvm.org/docs/LanguageExtensions.html#langext-builtin-shufflevector +pub fn shuffleVectorIndex(comptime this_index: c_int, comptime source_vector_len: usize) i32 { + if (this_index <= 0) return 0; + + const positive_index = @intCast(usize, this_index); + if (positive_index < source_vector_len) return @intCast(i32, this_index); + const b_index = positive_index - source_vector_len; + return ~@intCast(i32, b_index); +} + +test "shuffleVectorIndex" { + const vector_len: usize = 4; + + try testing.expect(shuffleVectorIndex(-1, vector_len) == 0); + + try testing.expect(shuffleVectorIndex(0, vector_len) == 0); + try testing.expect(shuffleVectorIndex(1, vector_len) == 1); + try testing.expect(shuffleVectorIndex(2, vector_len) == 2); + try testing.expect(shuffleVectorIndex(3, vector_len) == 3); + + try testing.expect(shuffleVectorIndex(4, vector_len) == -1); + try testing.expect(shuffleVectorIndex(5, vector_len) == -2); + try testing.expect(shuffleVectorIndex(6, vector_len) == -3); + try testing.expect(shuffleVectorIndex(7, vector_len) == -4); +} + +/// Constructs a [*c] pointer with the const and volatile annotations +/// from SelfType for pointing to a C flexible array of ElementType. +pub fn FlexibleArrayType(comptime SelfType: type, ElementType: type) type { + switch (@typeInfo(SelfType)) { + .Pointer => |ptr| { + return @Type(.{ .Pointer = .{ + .size = .C, + .is_const = ptr.is_const, + .is_volatile = ptr.is_volatile, + .alignment = @alignOf(ElementType), + .child = ElementType, + .is_allowzero = true, + .sentinel = null, + } }); + }, + else => |info| @compileError("Invalid self type \"" ++ @tagName(info) ++ "\" for flexible array getter: " ++ @typeName(SelfType)), + } +} + +test "Flexible Array Type" { + const Container = extern struct { + size: usize, + }; + + try testing.expectEqual(FlexibleArrayType(*Container, c_int), [*c]c_int); + try testing.expectEqual(FlexibleArrayType(*const Container, c_int), [*c]const c_int); + try testing.expectEqual(FlexibleArrayType(*volatile Container, c_int), [*c]volatile c_int); + try testing.expectEqual(FlexibleArrayType(*const volatile Container, c_int), [*c]const volatile c_int); +} diff --git a/src/translate_c.zig b/src/translate_c.zig index 2863377aad..4b07618391 100644 --- a/src/translate_c.zig +++ b/src/translate_c.zig @@ -12,7 +12,6 @@ const meta = std.meta; const ast = @import("translate_c/ast.zig"); const Node = ast.Node; const Tag = Node.Tag; -const c_builtins = std.c.builtins; const CallingConvention = std.builtin.CallingConvention; @@ -863,7 +862,7 @@ fn buildFlexibleArrayFn( defer block_scope.deinit(); const intermediate_type_name = try block_scope.makeMangledName(c, "Intermediate"); - const intermediate_type = try Tag.std_meta_flexible_array_type.create(c.arena, .{ .lhs = self_type, .rhs = u8_type }); + const intermediate_type = try Tag.helpers_flexible_array_type.create(c.arena, .{ .lhs = self_type, .rhs = u8_type }); const intermediate_type_decl = try Tag.var_simple.create(c.arena, .{ .name = intermediate_type_name, .init = intermediate_type, @@ -872,7 +871,7 @@ fn buildFlexibleArrayFn( const intermediate_type_ident = try Tag.identifier.create(c.arena, intermediate_type_name); const return_type_name = try block_scope.makeMangledName(c, "ReturnType"); - const return_type = try Tag.std_meta_flexible_array_type.create(c.arena, .{ .lhs = self_type, .rhs = element_type }); + const return_type = try Tag.helpers_flexible_array_type.create(c.arena, .{ .lhs = self_type, .rhs = element_type }); const return_type_decl = try Tag.var_simple.create(c.arena, .{ .name = return_type_name, .init = return_type, @@ -1290,9 +1289,19 @@ fn transStmt( return maybeSuppressResult(c, scope, result_used, shuffle_vec_node); }, // When adding new cases here, see comment for maybeBlockify() - else => { - return fail(c, error.UnsupportedTranslation, stmt.getBeginLoc(), "TODO implement translation of stmt class {s}", .{@tagName(sc)}); - }, + .GCCAsmStmtClass, + .GotoStmtClass, + .IndirectGotoStmtClass, + .AttributedStmtClass, + .AddrLabelExprClass, + .AtomicExprClass, + .BlockExprClass, + .UserDefinedLiteralClass, + .BuiltinBitCastExprClass, + .DesignatedInitExprClass, + .LabelStmtClass, + => return fail(c, error.UnsupportedTranslation, stmt.getBeginLoc(), "TODO implement translation of stmt class {s}", .{@tagName(sc)}), + else => return fail(c, error.UnsupportedTranslation, stmt.getBeginLoc(), "unsupported stmt class {s}", .{@tagName(sc)}), } } @@ -1374,7 +1383,7 @@ fn makeShuffleMask(c: *Context, scope: *Scope, expr: *const clang.ShuffleVectorE for (init_list) |*init, i| { const index_expr = try transExprCoercing(c, scope, expr.getExpr(@intCast(c_uint, i + 2)), .used); - const converted_index = try Tag.std_meta_shuffle_vector_index.create(c.arena, .{ .lhs = index_expr, .rhs = vector_len }); + const converted_index = try Tag.helpers_shuffle_vector_index.create(c.arena, .{ .lhs = index_expr, .rhs = vector_len }); init.* = converted_index; } @@ -1820,13 +1829,10 @@ fn transDeclStmtOne( .Function => { try visitFnDecl(c, @ptrCast(*const clang.FunctionDecl, decl)); }, - else => |kind| return fail( - c, - error.UnsupportedTranslation, - decl.getLocation(), - "TODO implement translation of DeclStmt kind {s}", - .{@tagName(kind)}, - ), + else => { + const decl_name = try c.str(decl.getDeclKindName()); + try warn(c, &c.global_scope.base, decl.getLocation(), "ignoring {s} declaration", .{decl_name}); + }, } } @@ -1902,7 +1908,7 @@ fn transImplicitCastExpr( const ne = try Tag.not_equal.create(c.arena, .{ .lhs = ptr_to_int, .rhs = Tag.zero_literal.init() }); return maybeSuppressResult(c, scope, result_used, ne); }, - .IntegralToBoolean => { + .IntegralToBoolean, .FloatingToBoolean => { const sub_expr_node = try transExpr(c, scope, sub_expr, .used); // The expression is already a boolean one, return it as-is @@ -1924,14 +1930,14 @@ fn transImplicitCastExpr( c, error.UnsupportedTranslation, @ptrCast(*const clang.Stmt, expr).getBeginLoc(), - "TODO implement translation of CastKind {s}", + "unsupported CastKind {s}", .{@tagName(kind)}, ), } } fn isBuiltinDefined(name: []const u8) bool { - inline for (meta.declarations(c_builtins)) |decl| { + inline for (meta.declarations(std.zig.c_builtins)) |decl| { if (std.mem.eql(u8, name, decl.name)) return true; } return false; @@ -2358,8 +2364,10 @@ fn transCCast( return Tag.float_to_int.create(c.arena, .{ .lhs = dst_node, .rhs = expr }); } if (!cIsFloating(src_type) and cIsFloating(dst_type)) { + var rhs = expr; + if (qualTypeIsBoolean(src_type)) rhs = try Tag.bool_to_int.create(c.arena, expr); // @intToFloat(dest_type, val) - return Tag.int_to_float.create(c.arena, .{ .lhs = dst_node, .rhs = expr }); + return Tag.int_to_float.create(c.arena, .{ .lhs = dst_node, .rhs = rhs }); } if (qualTypeIsBoolean(src_type) and !qualTypeIsBoolean(dst_type)) { // @boolToInt returns either a comptime_int or a u1 @@ -2370,7 +2378,7 @@ fn transCCast( } if (cIsEnum(dst_type)) { // import("std").meta.cast(dest_type, val) - return Tag.std_meta_cast.create(c.arena, .{ .lhs = dst_node, .rhs = expr }); + return Tag.helpers_cast.create(c.arena, .{ .lhs = dst_node, .rhs = expr }); } if (cIsEnum(src_type) and !cIsEnum(dst_type)) { // @enumToInt(val) @@ -4547,6 +4555,10 @@ fn transType(c: *Context, scope: *Scope, ty: *const clang.Type, source_loc: clan .rhs = try transQualType(c, scope, element_qt, source_loc), }); }, + .ExtInt, .ExtVector => { + const type_name = c.str(ty.getTypeClassName()); + return fail(c, error.UnsupportedType, source_loc, "TODO implement translation of type: '{s}'", .{type_name}); + }, else => { const type_name = c.str(ty.getTypeClassName()); return fail(c, error.UnsupportedType, source_loc, "unsupported type: '{s}'", .{type_name}); @@ -4982,7 +4994,7 @@ fn transMacroFnDefine(c: *Context, m: *MacroCtx) ParseError!void { break :blk br.data.val; } else expr; - const return_type = if (typeof_arg.castTag(.std_meta_cast) orelse typeof_arg.castTag(.std_mem_zeroinit)) |some| + const return_type = if (typeof_arg.castTag(.helpers_cast) orelse typeof_arg.castTag(.std_mem_zeroinit)) |some| some.data.lhs else if (typeof_arg.castTag(.std_mem_zeroes)) |some| some.data @@ -5095,7 +5107,7 @@ fn parseCNumLit(c: *Context, m: *MacroCtx) ParseError!Node { if (guaranteed_to_fit) { return Tag.as.create(c.arena, .{ .lhs = type_node, .rhs = literal_node }); } else { - return Tag.std_meta_promoteIntLiteral.create(c.arena, .{ + return Tag.helpers_promoteIntLiteral.create(c.arena, .{ .type = type_node, .value = literal_node, .radix = try Tag.enum_literal.create(c.arena, radix), @@ -5578,7 +5590,7 @@ fn parseCCastExpr(c: *Context, m: *MacroCtx, scope: *Scope) ParseError!Node { return parseCPostfixExpr(c, m, scope, type_name); } const node_to_cast = try parseCCastExpr(c, m, scope); - return Tag.std_meta_cast.create(c.arena, .{ .lhs = type_name, .rhs = node_to_cast }); + return Tag.helpers_cast.create(c.arena, .{ .lhs = type_name, .rhs = node_to_cast }); } }, else => {}, @@ -5925,7 +5937,7 @@ fn parseCUnaryExpr(c: *Context, m: *MacroCtx, scope: *Scope) ParseError!Node { break :blk inner; } else try parseCUnaryExpr(c, m, scope); - return Tag.std_meta_sizeof.create(c.arena, operand); + return Tag.helpers_sizeof.create(c.arena, operand); }, .Keyword_alignof => { // TODO this won't work if using 's diff --git a/src/translate_c/ast.zig b/src/translate_c/ast.zig index 8ee8b670c3..59e84c6ba0 100644 --- a/src/translate_c/ast.zig +++ b/src/translate_c/ast.zig @@ -74,7 +74,7 @@ pub const Node = extern union { tuple, container_init, container_init_dot, - std_meta_cast, + helpers_cast, /// _ = operand; discard, @@ -124,8 +124,8 @@ pub const Node = extern union { std_math_Log2Int, /// @intCast(lhs, rhs) int_cast, - /// @import("std").meta.promoteIntLiteral(value, type, radix) - std_meta_promoteIntLiteral, + /// @import("std").zig.c_translation.promoteIntLiteral(value, type, radix) + helpers_promoteIntLiteral, /// @import("std").meta.alignment(value) std_meta_alignment, /// @rem(lhs, rhs) @@ -193,12 +193,12 @@ pub const Node = extern union { array_type, null_sentinel_array_type, - /// @import("std").meta.sizeof(operand) - std_meta_sizeof, - /// @import("std").meta.FlexibleArrayType(lhs, rhs) - std_meta_flexible_array_type, - /// @import("std").meta.shuffleVectorIndex(lhs, rhs) - std_meta_shuffle_vector_index, + /// @import("std").zig.c_translation.sizeof(operand) + helpers_sizeof, + /// @import("std").zig.c_translation.FlexibleArrayType(lhs, rhs) + helpers_flexible_array_type, + /// @import("std").zig.c_translation.shuffleVectorIndex(lhs, rhs) + helpers_shuffle_vector_index, /// @import("std").meta.Vector(lhs, rhs) std_meta_vector, /// @import("std").mem.zeroes(operand) @@ -272,7 +272,7 @@ pub const Node = extern union { .if_not_break, .switch_else, .block_single, - .std_meta_sizeof, + .helpers_sizeof, .std_meta_alignment, .bool_to_int, .sizeof, @@ -332,13 +332,13 @@ pub const Node = extern union { .align_cast, .array_access, .std_mem_zeroinit, - .std_meta_flexible_array_type, - .std_meta_shuffle_vector_index, + .helpers_flexible_array_type, + .helpers_shuffle_vector_index, .std_meta_vector, .ptr_cast, .div_exact, .offset_of, - .std_meta_cast, + .helpers_cast, => Payload.BinOp, .integer_literal, @@ -362,7 +362,7 @@ pub const Node = extern union { .tuple => Payload.TupleInit, .container_init => Payload.ContainerInit, .container_init_dot => Payload.ContainerInitDot, - .std_meta_promoteIntLiteral => Payload.PromoteIntLiteral, + .helpers_promoteIntLiteral => Payload.PromoteIntLiteral, .block => Payload.Block, .c_pointer, .single_pointer => Payload.Pointer, .array_type, .null_sentinel_array_type => Payload.Array, @@ -868,7 +868,7 @@ fn renderNode(c: *Context, node: Node) Allocator.Error!NodeIndex { // pub usingnamespace @import("std").c.builtins; _ = try c.addToken(.keyword_pub, "pub"); const usingnamespace_token = try c.addToken(.keyword_usingnamespace, "usingnamespace"); - const import_node = try renderStdImport(c, "c", "builtins"); + const import_node = try renderStdImport(c, &.{ "zig", "c_builtins" }); _ = try c.addToken(.semicolon, ";"); return c.addNode(.{ @@ -882,52 +882,52 @@ fn renderNode(c: *Context, node: Node) Allocator.Error!NodeIndex { }, .std_math_Log2Int => { const payload = node.castTag(.std_math_Log2Int).?.data; - const import_node = try renderStdImport(c, "math", "Log2Int"); + const import_node = try renderStdImport(c, &.{ "math", "Log2Int" }); return renderCall(c, import_node, &.{payload}); }, - .std_meta_cast => { - const payload = node.castTag(.std_meta_cast).?.data; - const import_node = try renderStdImport(c, "meta", "cast"); + .helpers_cast => { + const payload = node.castTag(.helpers_cast).?.data; + const import_node = try renderStdImport(c, &.{ "zig", "c_translation", "cast" }); return renderCall(c, import_node, &.{ payload.lhs, payload.rhs }); }, - .std_meta_promoteIntLiteral => { - const payload = node.castTag(.std_meta_promoteIntLiteral).?.data; - const import_node = try renderStdImport(c, "meta", "promoteIntLiteral"); + .helpers_promoteIntLiteral => { + const payload = node.castTag(.helpers_promoteIntLiteral).?.data; + const import_node = try renderStdImport(c, &.{ "zig", "c_translation", "promoteIntLiteral" }); return renderCall(c, import_node, &.{ payload.type, payload.value, payload.radix }); }, .std_meta_alignment => { const payload = node.castTag(.std_meta_alignment).?.data; - const import_node = try renderStdImport(c, "meta", "alignment"); + const import_node = try renderStdImport(c, &.{ "meta", "alignment" }); return renderCall(c, import_node, &.{payload}); }, - .std_meta_sizeof => { - const payload = node.castTag(.std_meta_sizeof).?.data; - const import_node = try renderStdImport(c, "meta", "sizeof"); + .helpers_sizeof => { + const payload = node.castTag(.helpers_sizeof).?.data; + const import_node = try renderStdImport(c, &.{ "zig", "c_translation", "sizeof" }); return renderCall(c, import_node, &.{payload}); }, .std_mem_zeroes => { const payload = node.castTag(.std_mem_zeroes).?.data; - const import_node = try renderStdImport(c, "mem", "zeroes"); + const import_node = try renderStdImport(c, &.{ "mem", "zeroes" }); return renderCall(c, import_node, &.{payload}); }, .std_mem_zeroinit => { const payload = node.castTag(.std_mem_zeroinit).?.data; - const import_node = try renderStdImport(c, "mem", "zeroInit"); + const import_node = try renderStdImport(c, &.{ "mem", "zeroInit" }); return renderCall(c, import_node, &.{ payload.lhs, payload.rhs }); }, - .std_meta_flexible_array_type => { - const payload = node.castTag(.std_meta_flexible_array_type).?.data; - const import_node = try renderStdImport(c, "meta", "FlexibleArrayType"); + .helpers_flexible_array_type => { + const payload = node.castTag(.helpers_flexible_array_type).?.data; + const import_node = try renderStdImport(c, &.{ "zig", "c_translation", "FlexibleArrayType" }); return renderCall(c, import_node, &.{ payload.lhs, payload.rhs }); }, - .std_meta_shuffle_vector_index => { - const payload = node.castTag(.std_meta_shuffle_vector_index).?.data; - const import_node = try renderStdImport(c, "meta", "shuffleVectorIndex"); + .helpers_shuffle_vector_index => { + const payload = node.castTag(.helpers_shuffle_vector_index).?.data; + const import_node = try renderStdImport(c, &.{ "zig", "c_translation", "shuffleVectorIndex" }); return renderCall(c, import_node, &.{ payload.lhs, payload.rhs }); }, .std_meta_vector => { const payload = node.castTag(.std_meta_vector).?.data; - const import_node = try renderStdImport(c, "meta", "Vector"); + const import_node = try renderStdImport(c, &.{ "meta", "Vector" }); return renderCall(c, import_node, &.{ payload.lhs, payload.rhs }); }, .call => { @@ -2269,13 +2269,13 @@ fn renderNodeGrouped(c: *Context, node: Node) !NodeIndex { .alignof, .typeof, .typeinfo, - .std_meta_sizeof, .std_meta_alignment, - .std_meta_cast, - .std_meta_promoteIntLiteral, .std_meta_vector, - .std_meta_shuffle_vector_index, - .std_meta_flexible_array_type, + .helpers_sizeof, + .helpers_cast, + .helpers_promoteIntLiteral, + .helpers_shuffle_vector_index, + .helpers_flexible_array_type, .std_mem_zeroinit, .integer_literal, .float_literal, @@ -2442,7 +2442,7 @@ fn renderBinOp(c: *Context, node: Node, tag: std.zig.ast.Node.Tag, tok_tag: Toke }); } -fn renderStdImport(c: *Context, first: []const u8, second: []const u8) !NodeIndex { +fn renderStdImport(c: *Context, parts: []const []const u8) !NodeIndex { const import_tok = try c.addToken(.builtin, "@import"); _ = try c.addToken(.l_paren, "("); const std_tok = try c.addToken(.string_literal, "\"std\""); @@ -2463,8 +2463,9 @@ fn renderStdImport(c: *Context, first: []const u8, second: []const u8) !NodeInde }); var access_chain = import_node; - access_chain = try renderFieldAccess(c, access_chain, first); - access_chain = try renderFieldAccess(c, access_chain, second); + for (parts) |part| { + access_chain = try renderFieldAccess(c, access_chain, part); + } return access_chain; } diff --git a/test/translate_c.zig b/test/translate_c.zig index d49d4329d2..21350a8600 100644 --- a/test/translate_c.zig +++ b/test/translate_c.zig @@ -133,7 +133,7 @@ pub fn addCases(cases: *tests.TranslateCContext) void { \\ const A = @enumToInt(enum_Foo.A); \\ const B = @enumToInt(enum_Foo.B); \\ const C = @enumToInt(enum_Foo.C); - \\ var a: enum_Foo = @import("std").meta.cast(enum_Foo, B); + \\ var a: enum_Foo = @import("std").zig.c_translation.cast(enum_Foo, B); \\ { \\ const enum_Foo = extern enum( ++ default_enum_type ++ @@ -146,7 +146,7 @@ pub fn addCases(cases: *tests.TranslateCContext) void { \\ const A_2 = @enumToInt(enum_Foo.A); \\ const B_3 = @enumToInt(enum_Foo.B); \\ const C_4 = @enumToInt(enum_Foo.C); - \\ var a_5: enum_Foo = @import("std").meta.cast(enum_Foo, B_3); + \\ var a_5: enum_Foo = @import("std").zig.c_translation.cast(enum_Foo, B_3); \\ } \\} }); @@ -242,7 +242,7 @@ pub fn addCases(cases: *tests.TranslateCContext) void { \\#define MEM_PHYSICAL_TO_K0(x) (void*)((uint32_t)(x) + SYS_BASE_CACHED) , &[_][]const u8{ \\pub inline fn MEM_PHYSICAL_TO_K0(x: anytype) ?*c_void { - \\ return @import("std").meta.cast(?*c_void, @import("std").meta.cast(u32, x) + SYS_BASE_CACHED); + \\ return @import("std").zig.c_translation.cast(?*c_void, @import("std").zig.c_translation.cast(u32, x) + SYS_BASE_CACHED); \\} }); @@ -282,8 +282,8 @@ pub fn addCases(cases: *tests.TranslateCContext) void { , \\pub const VALUE = ((((@as(c_int, 1) + (@as(c_int, 2) * @as(c_int, 3))) + (@as(c_int, 4) * @as(c_int, 5))) + @as(c_int, 6)) << @as(c_int, 7)) | @boolToInt(@as(c_int, 8) == @as(c_int, 9)); , - \\pub inline fn _AL_READ3BYTES(p: anytype) @TypeOf((@import("std").meta.cast([*c]u8, p).* | ((@import("std").meta.cast([*c]u8, p) + @as(c_int, 1)).* << @as(c_int, 8))) | ((@import("std").meta.cast([*c]u8, p) + @as(c_int, 2)).* << @as(c_int, 16))) { - \\ return (@import("std").meta.cast([*c]u8, p).* | ((@import("std").meta.cast([*c]u8, p) + @as(c_int, 1)).* << @as(c_int, 8))) | ((@import("std").meta.cast([*c]u8, p) + @as(c_int, 2)).* << @as(c_int, 16)); + \\pub inline fn _AL_READ3BYTES(p: anytype) @TypeOf((@import("std").zig.c_translation.cast([*c]u8, p).* | ((@import("std").zig.c_translation.cast([*c]u8, p) + @as(c_int, 1)).* << @as(c_int, 8))) | ((@import("std").zig.c_translation.cast([*c]u8, p) + @as(c_int, 2)).* << @as(c_int, 16))) { + \\ return (@import("std").zig.c_translation.cast([*c]u8, p).* | ((@import("std").zig.c_translation.cast([*c]u8, p) + @as(c_int, 1)).* << @as(c_int, 8))) | ((@import("std").zig.c_translation.cast([*c]u8, p) + @as(c_int, 2)).* << @as(c_int, 16)); \\} }); @@ -438,17 +438,17 @@ pub fn addCases(cases: *tests.TranslateCContext) void { , &[_][]const u8{ \\pub const struct_foo = extern struct { \\ x: c_int align(4), - \\ pub fn y(self: anytype) @import("std").meta.FlexibleArrayType(@TypeOf(self), c_int) { - \\ const Intermediate = @import("std").meta.FlexibleArrayType(@TypeOf(self), u8); - \\ const ReturnType = @import("std").meta.FlexibleArrayType(@TypeOf(self), c_int); + \\ pub fn y(self: anytype) @import("std").zig.c_translation.FlexibleArrayType(@TypeOf(self), c_int) { + \\ const Intermediate = @import("std").zig.c_translation.FlexibleArrayType(@TypeOf(self), u8); + \\ const ReturnType = @import("std").zig.c_translation.FlexibleArrayType(@TypeOf(self), c_int); \\ return @ptrCast(ReturnType, @alignCast(@alignOf(c_int), @ptrCast(Intermediate, self) + 4)); \\ } \\}; \\pub const struct_bar = extern struct { \\ x: c_int align(4), - \\ pub fn y(self: anytype) @import("std").meta.FlexibleArrayType(@TypeOf(self), c_int) { - \\ const Intermediate = @import("std").meta.FlexibleArrayType(@TypeOf(self), u8); - \\ const ReturnType = @import("std").meta.FlexibleArrayType(@TypeOf(self), c_int); + \\ pub fn y(self: anytype) @import("std").zig.c_translation.FlexibleArrayType(@TypeOf(self), c_int) { + \\ const Intermediate = @import("std").zig.c_translation.FlexibleArrayType(@TypeOf(self), u8); + \\ const ReturnType = @import("std").zig.c_translation.FlexibleArrayType(@TypeOf(self), c_int); \\ return @ptrCast(ReturnType, @alignCast(@alignOf(c_int), @ptrCast(Intermediate, self) + 4)); \\ } \\}; @@ -583,7 +583,7 @@ pub fn addCases(cases: *tests.TranslateCContext) void { cases.add("#define hex literal with capital X", \\#define VAL 0XF00D , &[_][]const u8{ - \\pub const VAL = @import("std").meta.promoteIntLiteral(c_int, 0xF00D, .hexadecimal); + \\pub const VAL = @import("std").zig.c_translation.promoteIntLiteral(c_int, 0xF00D, .hexadecimal); }); cases.add("anonymous struct & unions", @@ -1738,7 +1738,7 @@ pub fn addCases(cases: *tests.TranslateCContext) void { \\pub const e = @enumToInt(enum_unnamed_1.e); \\pub const f = @enumToInt(enum_unnamed_1.f); \\pub const g = @enumToInt(enum_unnamed_1.g); - \\pub export var h: enum_unnamed_1 = @import("std").meta.cast(enum_unnamed_1, e); + \\pub export var h: enum_unnamed_1 = @import("std").zig.c_translation.cast(enum_unnamed_1, e); \\const enum_unnamed_2 = extern enum( ++ default_enum_type ++ \\) { @@ -1882,7 +1882,7 @@ pub fn addCases(cases: *tests.TranslateCContext) void { \\typedef struct { int dummy; } NRF_GPIO_Type; \\#define NRF_GPIO ((NRF_GPIO_Type *) NRF_GPIO_BASE) , &[_][]const u8{ - \\pub const NRF_GPIO = @import("std").meta.cast([*c]NRF_GPIO_Type, NRF_GPIO_BASE); + \\pub const NRF_GPIO = @import("std").zig.c_translation.cast([*c]NRF_GPIO_Type, NRF_GPIO_BASE); }); cases.add("basic macro function", @@ -2379,7 +2379,7 @@ pub fn addCases(cases: *tests.TranslateCContext) void { \\ var a = arg_a; \\ var b = arg_b; \\ var c = arg_c; - \\ var d: enum_Foo = @import("std").meta.cast(enum_Foo, FooA); + \\ var d: enum_Foo = @import("std").zig.c_translation.cast(enum_Foo, FooA); \\ var e: c_int = @boolToInt((a != 0) and (b != 0)); \\ var f: c_int = @boolToInt((b != 0) and (c != null)); \\ var g: c_int = @boolToInt((a != 0) and (c != null)); @@ -3182,13 +3182,13 @@ pub fn addCases(cases: *tests.TranslateCContext) void { \\#define BAR (void*) a \\#define BAZ (uint32_t)(2) , &[_][]const u8{ - \\pub inline fn FOO(bar: anytype) @TypeOf(baz(@import("std").meta.cast(?*c_void, baz))) { - \\ return baz(@import("std").meta.cast(?*c_void, baz)); + \\pub inline fn FOO(bar: anytype) @TypeOf(baz(@import("std").zig.c_translation.cast(?*c_void, baz))) { + \\ return baz(@import("std").zig.c_translation.cast(?*c_void, baz)); \\} , - \\pub const BAR = @import("std").meta.cast(?*c_void, a); + \\pub const BAR = @import("std").zig.c_translation.cast(?*c_void, a); , - \\pub const BAZ = @import("std").meta.cast(u32, @as(c_int, 2)); + \\pub const BAZ = @import("std").zig.c_translation.cast(u32, @as(c_int, 2)); }); cases.add("macro with cast to unsigned short, long, and long long", @@ -3196,9 +3196,9 @@ pub fn addCases(cases: *tests.TranslateCContext) void { \\#define CURLAUTH_BASIC ((unsigned long) 1) \\#define CURLAUTH_BASIC_BUT_ULONGLONG ((unsigned long long) 1) , &[_][]const u8{ - \\pub const CURLAUTH_BASIC_BUT_USHORT = @import("std").meta.cast(c_ushort, @as(c_int, 1)); - \\pub const CURLAUTH_BASIC = @import("std").meta.cast(c_ulong, @as(c_int, 1)); - \\pub const CURLAUTH_BASIC_BUT_ULONGLONG = @import("std").meta.cast(c_ulonglong, @as(c_int, 1)); + \\pub const CURLAUTH_BASIC_BUT_USHORT = @import("std").zig.c_translation.cast(c_ushort, @as(c_int, 1)); + \\pub const CURLAUTH_BASIC = @import("std").zig.c_translation.cast(c_ulong, @as(c_int, 1)); + \\pub const CURLAUTH_BASIC_BUT_ULONGLONG = @import("std").zig.c_translation.cast(c_ulonglong, @as(c_int, 1)); }); cases.add("macro conditional operator", @@ -3413,8 +3413,8 @@ pub fn addCases(cases: *tests.TranslateCContext) void { \\#define DefaultScreen(dpy) (((_XPrivDisplay)(dpy))->default_screen) \\ , &[_][]const u8{ - \\pub inline fn DefaultScreen(dpy: anytype) @TypeOf(@import("std").meta.cast(_XPrivDisplay, dpy).*.default_screen) { - \\ return @import("std").meta.cast(_XPrivDisplay, dpy).*.default_screen; + \\pub inline fn DefaultScreen(dpy: anytype) @TypeOf(@import("std").zig.c_translation.cast(_XPrivDisplay, dpy).*.default_screen) { + \\ return @import("std").zig.c_translation.cast(_XPrivDisplay, dpy).*.default_screen; \\} }); @@ -3422,9 +3422,9 @@ pub fn addCases(cases: *tests.TranslateCContext) void { \\#define NULL ((void*)0) \\#define FOO ((int)0x8000) , &[_][]const u8{ - \\pub const NULL = @import("std").meta.cast(?*c_void, @as(c_int, 0)); + \\pub const NULL = @import("std").zig.c_translation.cast(?*c_void, @as(c_int, 0)); , - \\pub const FOO = @import("std").meta.cast(c_int, @import("std").meta.promoteIntLiteral(c_int, 0x8000, .hexadecimal)); + \\pub const FOO = @import("std").zig.c_translation.cast(c_int, @import("std").zig.c_translation.promoteIntLiteral(c_int, 0x8000, .hexadecimal)); }); if (std.Target.current.abi == .msvc) { @@ -3503,11 +3503,11 @@ pub fn addCases(cases: *tests.TranslateCContext) void { \\pub const GUARANTEED_TO_FIT_1 = @as(c_int, 1024); \\pub const GUARANTEED_TO_FIT_2 = @as(c_long, 10241024); \\pub const GUARANTEED_TO_FIT_3 = @as(c_ulong, 20482048); - \\pub const MAY_NEED_PROMOTION_1 = @import("std").meta.promoteIntLiteral(c_int, 10241024, .decimal); - \\pub const MAY_NEED_PROMOTION_2 = @import("std").meta.promoteIntLiteral(c_long, 307230723072, .decimal); - \\pub const MAY_NEED_PROMOTION_3 = @import("std").meta.promoteIntLiteral(c_ulong, 819281928192, .decimal); - \\pub const MAY_NEED_PROMOTION_HEX = @import("std").meta.promoteIntLiteral(c_int, 0x80000000, .hexadecimal); - \\pub const MAY_NEED_PROMOTION_OCT = @import("std").meta.promoteIntLiteral(c_int, 0o20000000000, .octal); + \\pub const MAY_NEED_PROMOTION_1 = @import("std").zig.c_translation.promoteIntLiteral(c_int, 10241024, .decimal); + \\pub const MAY_NEED_PROMOTION_2 = @import("std").zig.c_translation.promoteIntLiteral(c_long, 307230723072, .decimal); + \\pub const MAY_NEED_PROMOTION_3 = @import("std").zig.c_translation.promoteIntLiteral(c_ulong, 819281928192, .decimal); + \\pub const MAY_NEED_PROMOTION_HEX = @import("std").zig.c_translation.promoteIntLiteral(c_int, 0x80000000, .hexadecimal); + \\pub const MAY_NEED_PROMOTION_OCT = @import("std").zig.c_translation.promoteIntLiteral(c_int, 0o20000000000, .octal); }); // See __builtin_alloca_with_align comment in std.c.builtins @@ -3642,7 +3642,7 @@ pub fn addCases(cases: *tests.TranslateCContext) void { \\typedef long long LONG_PTR; \\#define INVALID_HANDLE_VALUE ((void *)(LONG_PTR)-1) , &[_][]const u8{ - \\pub const MAP_FAILED = @import("std").meta.cast(?*c_void, -@as(c_int, 1)); - \\pub const INVALID_HANDLE_VALUE = @import("std").meta.cast(?*c_void, @import("std").meta.cast(LONG_PTR, -@as(c_int, 1))); + \\pub const MAP_FAILED = @import("std").zig.c_translation.cast(?*c_void, -@as(c_int, 1)); + \\pub const INVALID_HANDLE_VALUE = @import("std").zig.c_translation.cast(?*c_void, @import("std").zig.c_translation.cast(LONG_PTR, -@as(c_int, 1))); }); } From 6dbdac4b605fb56b4180b6c66154275c22954a8d Mon Sep 17 00:00:00 2001 From: Veikka Tuominen Date: Sat, 12 Jun 2021 23:35:30 +0300 Subject: [PATCH 2/2] replace usage of meta.cast with builtins You weren't supposed to use these >:( --- lib/std/crypto/pcurves/p256/p256_64.zig | 317 +++++++++--------- .../crypto/pcurves/p256/p256_scalar_64.zig | 289 ++++++++-------- 2 files changed, 302 insertions(+), 304 deletions(-) diff --git a/lib/std/crypto/pcurves/p256/p256_64.zig b/lib/std/crypto/pcurves/p256/p256_64.zig index c60ca6c110..11c7652968 100644 --- a/lib/std/crypto/pcurves/p256/p256_64.zig +++ b/lib/std/crypto/pcurves/p256/p256_64.zig @@ -18,7 +18,6 @@ // if x1 & (2^256-1) < 2^255 then x1 & (2^256-1) else (x1 & (2^256-1)) - 2^256 const std = @import("std"); -const cast = std.meta.cast; const mode = std.builtin.mode; // Checked arithmetic is disabled in non-debug modes to avoid side channels // The type MontgomeryDomainFieldElement is a field element in the Montgomery domain. @@ -148,7 +147,7 @@ pub fn mul(out1: *MontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldEleme var x17: u64 = undefined; var x18: u1 = undefined; addcarryxU64(&x17, &x18, x16, x8, x5); - const x19 = (cast(u64, x18) + x6); + const x19 = (@as(u64, x18) + x6); var x20: u64 = undefined; var x21: u64 = undefined; mulxU64(&x20, &x21, x11, 0xffffffff00000001); @@ -161,7 +160,7 @@ pub fn mul(out1: *MontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldEleme var x26: u64 = undefined; var x27: u1 = undefined; addcarryxU64(&x26, &x27, 0x0, x25, x22); - const x28 = (cast(u64, x27) + x23); + const x28 = (@as(u64, x27) + x23); var x29: u64 = undefined; var x30: u1 = undefined; addcarryxU64(&x29, &x30, 0x0, x11, x24); @@ -198,7 +197,7 @@ pub fn mul(out1: *MontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldEleme var x51: u64 = undefined; var x52: u1 = undefined; addcarryxU64(&x51, &x52, x50, x42, x39); - const x53 = (cast(u64, x52) + x40); + const x53 = (@as(u64, x52) + x40); var x54: u64 = undefined; var x55: u1 = undefined; addcarryxU64(&x54, &x55, 0x0, x31, x45); @@ -213,7 +212,7 @@ pub fn mul(out1: *MontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldEleme addcarryxU64(&x60, &x61, x59, x37, x51); var x62: u64 = undefined; var x63: u1 = undefined; - addcarryxU64(&x62, &x63, x61, cast(u64, x38), x53); + addcarryxU64(&x62, &x63, x61, @as(u64, x38), x53); var x64: u64 = undefined; var x65: u64 = undefined; mulxU64(&x64, &x65, x54, 0xffffffff00000001); @@ -226,7 +225,7 @@ pub fn mul(out1: *MontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldEleme var x70: u64 = undefined; var x71: u1 = undefined; addcarryxU64(&x70, &x71, 0x0, x69, x66); - const x72 = (cast(u64, x71) + x67); + const x72 = (@as(u64, x71) + x67); var x73: u64 = undefined; var x74: u1 = undefined; addcarryxU64(&x73, &x74, 0x0, x54, x68); @@ -242,7 +241,7 @@ pub fn mul(out1: *MontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldEleme var x81: u64 = undefined; var x82: u1 = undefined; addcarryxU64(&x81, &x82, x80, x62, x65); - const x83 = (cast(u64, x82) + cast(u64, x63)); + const x83 = (@as(u64, x82) + @as(u64, x63)); var x84: u64 = undefined; var x85: u64 = undefined; mulxU64(&x84, &x85, x2, (arg2[3])); @@ -264,7 +263,7 @@ pub fn mul(out1: *MontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldEleme var x96: u64 = undefined; var x97: u1 = undefined; addcarryxU64(&x96, &x97, x95, x87, x84); - const x98 = (cast(u64, x97) + x85); + const x98 = (@as(u64, x97) + x85); var x99: u64 = undefined; var x100: u1 = undefined; addcarryxU64(&x99, &x100, 0x0, x75, x90); @@ -292,7 +291,7 @@ pub fn mul(out1: *MontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldEleme var x115: u64 = undefined; var x116: u1 = undefined; addcarryxU64(&x115, &x116, 0x0, x114, x111); - const x117 = (cast(u64, x116) + x112); + const x117 = (@as(u64, x116) + x112); var x118: u64 = undefined; var x119: u1 = undefined; addcarryxU64(&x118, &x119, 0x0, x99, x113); @@ -308,7 +307,7 @@ pub fn mul(out1: *MontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldEleme var x126: u64 = undefined; var x127: u1 = undefined; addcarryxU64(&x126, &x127, x125, x107, x110); - const x128 = (cast(u64, x127) + cast(u64, x108)); + const x128 = (@as(u64, x127) + @as(u64, x108)); var x129: u64 = undefined; var x130: u64 = undefined; mulxU64(&x129, &x130, x3, (arg2[3])); @@ -330,7 +329,7 @@ pub fn mul(out1: *MontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldEleme var x141: u64 = undefined; var x142: u1 = undefined; addcarryxU64(&x141, &x142, x140, x132, x129); - const x143 = (cast(u64, x142) + x130); + const x143 = (@as(u64, x142) + x130); var x144: u64 = undefined; var x145: u1 = undefined; addcarryxU64(&x144, &x145, 0x0, x120, x135); @@ -358,7 +357,7 @@ pub fn mul(out1: *MontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldEleme var x160: u64 = undefined; var x161: u1 = undefined; addcarryxU64(&x160, &x161, 0x0, x159, x156); - const x162 = (cast(u64, x161) + x157); + const x162 = (@as(u64, x161) + x157); var x163: u64 = undefined; var x164: u1 = undefined; addcarryxU64(&x163, &x164, 0x0, x144, x158); @@ -374,7 +373,7 @@ pub fn mul(out1: *MontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldEleme var x171: u64 = undefined; var x172: u1 = undefined; addcarryxU64(&x171, &x172, x170, x152, x155); - const x173 = (cast(u64, x172) + cast(u64, x153)); + const x173 = (@as(u64, x172) + @as(u64, x153)); var x174: u64 = undefined; var x175: u1 = undefined; subborrowxU64(&x174, &x175, 0x0, x165, 0xffffffffffffffff); @@ -383,13 +382,13 @@ pub fn mul(out1: *MontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldEleme subborrowxU64(&x176, &x177, x175, x167, 0xffffffff); var x178: u64 = undefined; var x179: u1 = undefined; - subborrowxU64(&x178, &x179, x177, x169, cast(u64, 0x0)); + subborrowxU64(&x178, &x179, x177, x169, @as(u64, 0x0)); var x180: u64 = undefined; var x181: u1 = undefined; subborrowxU64(&x180, &x181, x179, x171, 0xffffffff00000001); var x182: u64 = undefined; var x183: u1 = undefined; - subborrowxU64(&x182, &x183, x181, x173, cast(u64, 0x0)); + subborrowxU64(&x182, &x183, x181, x173, @as(u64, 0x0)); var x184: u64 = undefined; cmovznzU64(&x184, x183, x174, x165); var x185: u64 = undefined; @@ -440,7 +439,7 @@ pub fn square(out1: *MontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldEl var x17: u64 = undefined; var x18: u1 = undefined; addcarryxU64(&x17, &x18, x16, x8, x5); - const x19 = (cast(u64, x18) + x6); + const x19 = (@as(u64, x18) + x6); var x20: u64 = undefined; var x21: u64 = undefined; mulxU64(&x20, &x21, x11, 0xffffffff00000001); @@ -453,7 +452,7 @@ pub fn square(out1: *MontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldEl var x26: u64 = undefined; var x27: u1 = undefined; addcarryxU64(&x26, &x27, 0x0, x25, x22); - const x28 = (cast(u64, x27) + x23); + const x28 = (@as(u64, x27) + x23); var x29: u64 = undefined; var x30: u1 = undefined; addcarryxU64(&x29, &x30, 0x0, x11, x24); @@ -490,7 +489,7 @@ pub fn square(out1: *MontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldEl var x51: u64 = undefined; var x52: u1 = undefined; addcarryxU64(&x51, &x52, x50, x42, x39); - const x53 = (cast(u64, x52) + x40); + const x53 = (@as(u64, x52) + x40); var x54: u64 = undefined; var x55: u1 = undefined; addcarryxU64(&x54, &x55, 0x0, x31, x45); @@ -505,7 +504,7 @@ pub fn square(out1: *MontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldEl addcarryxU64(&x60, &x61, x59, x37, x51); var x62: u64 = undefined; var x63: u1 = undefined; - addcarryxU64(&x62, &x63, x61, cast(u64, x38), x53); + addcarryxU64(&x62, &x63, x61, @as(u64, x38), x53); var x64: u64 = undefined; var x65: u64 = undefined; mulxU64(&x64, &x65, x54, 0xffffffff00000001); @@ -518,7 +517,7 @@ pub fn square(out1: *MontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldEl var x70: u64 = undefined; var x71: u1 = undefined; addcarryxU64(&x70, &x71, 0x0, x69, x66); - const x72 = (cast(u64, x71) + x67); + const x72 = (@as(u64, x71) + x67); var x73: u64 = undefined; var x74: u1 = undefined; addcarryxU64(&x73, &x74, 0x0, x54, x68); @@ -534,7 +533,7 @@ pub fn square(out1: *MontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldEl var x81: u64 = undefined; var x82: u1 = undefined; addcarryxU64(&x81, &x82, x80, x62, x65); - const x83 = (cast(u64, x82) + cast(u64, x63)); + const x83 = (@as(u64, x82) + @as(u64, x63)); var x84: u64 = undefined; var x85: u64 = undefined; mulxU64(&x84, &x85, x2, (arg1[3])); @@ -556,7 +555,7 @@ pub fn square(out1: *MontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldEl var x96: u64 = undefined; var x97: u1 = undefined; addcarryxU64(&x96, &x97, x95, x87, x84); - const x98 = (cast(u64, x97) + x85); + const x98 = (@as(u64, x97) + x85); var x99: u64 = undefined; var x100: u1 = undefined; addcarryxU64(&x99, &x100, 0x0, x75, x90); @@ -584,7 +583,7 @@ pub fn square(out1: *MontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldEl var x115: u64 = undefined; var x116: u1 = undefined; addcarryxU64(&x115, &x116, 0x0, x114, x111); - const x117 = (cast(u64, x116) + x112); + const x117 = (@as(u64, x116) + x112); var x118: u64 = undefined; var x119: u1 = undefined; addcarryxU64(&x118, &x119, 0x0, x99, x113); @@ -600,7 +599,7 @@ pub fn square(out1: *MontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldEl var x126: u64 = undefined; var x127: u1 = undefined; addcarryxU64(&x126, &x127, x125, x107, x110); - const x128 = (cast(u64, x127) + cast(u64, x108)); + const x128 = (@as(u64, x127) + @as(u64, x108)); var x129: u64 = undefined; var x130: u64 = undefined; mulxU64(&x129, &x130, x3, (arg1[3])); @@ -622,7 +621,7 @@ pub fn square(out1: *MontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldEl var x141: u64 = undefined; var x142: u1 = undefined; addcarryxU64(&x141, &x142, x140, x132, x129); - const x143 = (cast(u64, x142) + x130); + const x143 = (@as(u64, x142) + x130); var x144: u64 = undefined; var x145: u1 = undefined; addcarryxU64(&x144, &x145, 0x0, x120, x135); @@ -650,7 +649,7 @@ pub fn square(out1: *MontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldEl var x160: u64 = undefined; var x161: u1 = undefined; addcarryxU64(&x160, &x161, 0x0, x159, x156); - const x162 = (cast(u64, x161) + x157); + const x162 = (@as(u64, x161) + x157); var x163: u64 = undefined; var x164: u1 = undefined; addcarryxU64(&x163, &x164, 0x0, x144, x158); @@ -666,7 +665,7 @@ pub fn square(out1: *MontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldEl var x171: u64 = undefined; var x172: u1 = undefined; addcarryxU64(&x171, &x172, x170, x152, x155); - const x173 = (cast(u64, x172) + cast(u64, x153)); + const x173 = (@as(u64, x172) + @as(u64, x153)); var x174: u64 = undefined; var x175: u1 = undefined; subborrowxU64(&x174, &x175, 0x0, x165, 0xffffffffffffffff); @@ -675,13 +674,13 @@ pub fn square(out1: *MontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldEl subborrowxU64(&x176, &x177, x175, x167, 0xffffffff); var x178: u64 = undefined; var x179: u1 = undefined; - subborrowxU64(&x178, &x179, x177, x169, cast(u64, 0x0)); + subborrowxU64(&x178, &x179, x177, x169, @as(u64, 0x0)); var x180: u64 = undefined; var x181: u1 = undefined; subborrowxU64(&x180, &x181, x179, x171, 0xffffffff00000001); var x182: u64 = undefined; var x183: u1 = undefined; - subborrowxU64(&x182, &x183, x181, x173, cast(u64, 0x0)); + subborrowxU64(&x182, &x183, x181, x173, @as(u64, 0x0)); var x184: u64 = undefined; cmovznzU64(&x184, x183, x174, x165); var x185: u64 = undefined; @@ -728,13 +727,13 @@ pub fn add(out1: *MontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldEleme subborrowxU64(&x11, &x12, x10, x3, 0xffffffff); var x13: u64 = undefined; var x14: u1 = undefined; - subborrowxU64(&x13, &x14, x12, x5, cast(u64, 0x0)); + subborrowxU64(&x13, &x14, x12, x5, @as(u64, 0x0)); var x15: u64 = undefined; var x16: u1 = undefined; subborrowxU64(&x15, &x16, x14, x7, 0xffffffff00000001); var x17: u64 = undefined; var x18: u1 = undefined; - subborrowxU64(&x17, &x18, x16, cast(u64, x8), cast(u64, 0x0)); + subborrowxU64(&x17, &x18, x16, @as(u64, x8), @as(u64, 0x0)); var x19: u64 = undefined; cmovznzU64(&x19, x18, x9, x1); var x20: u64 = undefined; @@ -774,7 +773,7 @@ pub fn sub(out1: *MontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldEleme var x8: u1 = undefined; subborrowxU64(&x7, &x8, x6, (arg1[3]), (arg2[3])); var x9: u64 = undefined; - cmovznzU64(&x9, x8, cast(u64, 0x0), 0xffffffffffffffff); + cmovznzU64(&x9, x8, @as(u64, 0x0), 0xffffffffffffffff); var x10: u64 = undefined; var x11: u1 = undefined; addcarryxU64(&x10, &x11, 0x0, x1, x9); @@ -783,7 +782,7 @@ pub fn sub(out1: *MontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldEleme addcarryxU64(&x12, &x13, x11, x3, (x9 & 0xffffffff)); var x14: u64 = undefined; var x15: u1 = undefined; - addcarryxU64(&x14, &x15, x13, x5, cast(u64, 0x0)); + addcarryxU64(&x14, &x15, x13, x5, @as(u64, 0x0)); var x16: u64 = undefined; var x17: u1 = undefined; addcarryxU64(&x16, &x17, x15, x7, (x9 & 0xffffffff00000001)); @@ -806,18 +805,18 @@ pub fn opp(out1: *MontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldEleme var x1: u64 = undefined; var x2: u1 = undefined; - subborrowxU64(&x1, &x2, 0x0, cast(u64, 0x0), (arg1[0])); + subborrowxU64(&x1, &x2, 0x0, @as(u64, 0x0), (arg1[0])); var x3: u64 = undefined; var x4: u1 = undefined; - subborrowxU64(&x3, &x4, x2, cast(u64, 0x0), (arg1[1])); + subborrowxU64(&x3, &x4, x2, @as(u64, 0x0), (arg1[1])); var x5: u64 = undefined; var x6: u1 = undefined; - subborrowxU64(&x5, &x6, x4, cast(u64, 0x0), (arg1[2])); + subborrowxU64(&x5, &x6, x4, @as(u64, 0x0), (arg1[2])); var x7: u64 = undefined; var x8: u1 = undefined; - subborrowxU64(&x7, &x8, x6, cast(u64, 0x0), (arg1[3])); + subborrowxU64(&x7, &x8, x6, @as(u64, 0x0), (arg1[3])); var x9: u64 = undefined; - cmovznzU64(&x9, x8, cast(u64, 0x0), 0xffffffffffffffff); + cmovznzU64(&x9, x8, @as(u64, 0x0), 0xffffffffffffffff); var x10: u64 = undefined; var x11: u1 = undefined; addcarryxU64(&x10, &x11, 0x0, x1, x9); @@ -826,7 +825,7 @@ pub fn opp(out1: *MontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldEleme addcarryxU64(&x12, &x13, x11, x3, (x9 & 0xffffffff)); var x14: u64 = undefined; var x15: u1 = undefined; - addcarryxU64(&x14, &x15, x13, x5, cast(u64, 0x0)); + addcarryxU64(&x14, &x15, x13, x5, @as(u64, 0x0)); var x16: u64 = undefined; var x17: u1 = undefined; addcarryxU64(&x16, &x17, x15, x7, (x9 & 0xffffffff00000001)); @@ -865,7 +864,7 @@ pub fn fromMontgomery(out1: *NonMontgomeryDomainFieldElement, arg1: MontgomeryDo addcarryxU64(&x10, &x11, 0x0, x1, x6); var x12: u64 = undefined; var x13: u1 = undefined; - addcarryxU64(&x12, &x13, x11, cast(u64, 0x0), x8); + addcarryxU64(&x12, &x13, x11, @as(u64, 0x0), x8); var x14: u64 = undefined; var x15: u1 = undefined; addcarryxU64(&x14, &x15, 0x0, x12, (arg1[1])); @@ -886,10 +885,10 @@ pub fn fromMontgomery(out1: *NonMontgomeryDomainFieldElement, arg1: MontgomeryDo addcarryxU64(&x24, &x25, 0x0, x14, x20); var x26: u64 = undefined; var x27: u1 = undefined; - addcarryxU64(&x26, &x27, x25, (cast(u64, x15) + (cast(u64, x13) + (cast(u64, x9) + x5))), x22); + addcarryxU64(&x26, &x27, x25, (@as(u64, x15) + (@as(u64, x13) + (@as(u64, x9) + x5))), x22); var x28: u64 = undefined; var x29: u1 = undefined; - addcarryxU64(&x28, &x29, x27, x2, (cast(u64, x23) + x19)); + addcarryxU64(&x28, &x29, x27, x2, (@as(u64, x23) + x19)); var x30: u64 = undefined; var x31: u1 = undefined; addcarryxU64(&x30, &x31, x29, x3, x16); @@ -898,10 +897,10 @@ pub fn fromMontgomery(out1: *NonMontgomeryDomainFieldElement, arg1: MontgomeryDo addcarryxU64(&x32, &x33, 0x0, x26, (arg1[2])); var x34: u64 = undefined; var x35: u1 = undefined; - addcarryxU64(&x34, &x35, x33, x28, cast(u64, 0x0)); + addcarryxU64(&x34, &x35, x33, x28, @as(u64, 0x0)); var x36: u64 = undefined; var x37: u1 = undefined; - addcarryxU64(&x36, &x37, x35, x30, cast(u64, 0x0)); + addcarryxU64(&x36, &x37, x35, x30, @as(u64, 0x0)); var x38: u64 = undefined; var x39: u64 = undefined; mulxU64(&x38, &x39, x32, 0xffffffff00000001); @@ -922,19 +921,19 @@ pub fn fromMontgomery(out1: *NonMontgomeryDomainFieldElement, arg1: MontgomeryDo addcarryxU64(&x48, &x49, x47, x34, x44); var x50: u64 = undefined; var x51: u1 = undefined; - addcarryxU64(&x50, &x51, x49, x36, (cast(u64, x45) + x41)); + addcarryxU64(&x50, &x51, x49, x36, (@as(u64, x45) + x41)); var x52: u64 = undefined; var x53: u1 = undefined; - addcarryxU64(&x52, &x53, x51, (cast(u64, x37) + (cast(u64, x31) + x17)), x38); + addcarryxU64(&x52, &x53, x51, (@as(u64, x37) + (@as(u64, x31) + x17)), x38); var x54: u64 = undefined; var x55: u1 = undefined; addcarryxU64(&x54, &x55, 0x0, x48, (arg1[3])); var x56: u64 = undefined; var x57: u1 = undefined; - addcarryxU64(&x56, &x57, x55, x50, cast(u64, 0x0)); + addcarryxU64(&x56, &x57, x55, x50, @as(u64, 0x0)); var x58: u64 = undefined; var x59: u1 = undefined; - addcarryxU64(&x58, &x59, x57, x52, cast(u64, 0x0)); + addcarryxU64(&x58, &x59, x57, x52, @as(u64, 0x0)); var x60: u64 = undefined; var x61: u64 = undefined; mulxU64(&x60, &x61, x54, 0xffffffff00000001); @@ -955,11 +954,11 @@ pub fn fromMontgomery(out1: *NonMontgomeryDomainFieldElement, arg1: MontgomeryDo addcarryxU64(&x70, &x71, x69, x56, x66); var x72: u64 = undefined; var x73: u1 = undefined; - addcarryxU64(&x72, &x73, x71, x58, (cast(u64, x67) + x63)); + addcarryxU64(&x72, &x73, x71, x58, (@as(u64, x67) + x63)); var x74: u64 = undefined; var x75: u1 = undefined; - addcarryxU64(&x74, &x75, x73, (cast(u64, x59) + (cast(u64, x53) + x39)), x60); - const x76 = (cast(u64, x75) + x61); + addcarryxU64(&x74, &x75, x73, (@as(u64, x59) + (@as(u64, x53) + x39)), x60); + const x76 = (@as(u64, x75) + x61); var x77: u64 = undefined; var x78: u1 = undefined; subborrowxU64(&x77, &x78, 0x0, x70, 0xffffffffffffffff); @@ -968,13 +967,13 @@ pub fn fromMontgomery(out1: *NonMontgomeryDomainFieldElement, arg1: MontgomeryDo subborrowxU64(&x79, &x80, x78, x72, 0xffffffff); var x81: u64 = undefined; var x82: u1 = undefined; - subborrowxU64(&x81, &x82, x80, x74, cast(u64, 0x0)); + subborrowxU64(&x81, &x82, x80, x74, @as(u64, 0x0)); var x83: u64 = undefined; var x84: u1 = undefined; subborrowxU64(&x83, &x84, x82, x76, 0xffffffff00000001); var x85: u64 = undefined; var x86: u1 = undefined; - subborrowxU64(&x85, &x86, x84, cast(u64, 0x0), cast(u64, 0x0)); + subborrowxU64(&x85, &x86, x84, @as(u64, 0x0), @as(u64, 0x0)); var x87: u64 = undefined; cmovznzU64(&x87, x86, x77, x70); var x88: u64 = undefined; @@ -1045,13 +1044,13 @@ pub fn toMontgomery(out1: *MontgomeryDomainFieldElement, arg1: NonMontgomeryDoma addcarryxU64(&x29, &x30, x28, x13, x25); var x31: u64 = undefined; var x32: u1 = undefined; - addcarryxU64(&x31, &x32, x30, x15, (cast(u64, x26) + x22)); + addcarryxU64(&x31, &x32, x30, x15, (@as(u64, x26) + x22)); var x33: u64 = undefined; var x34: u1 = undefined; addcarryxU64(&x33, &x34, x32, x17, x19); var x35: u64 = undefined; var x36: u1 = undefined; - addcarryxU64(&x35, &x36, x34, (cast(u64, x18) + x6), x20); + addcarryxU64(&x35, &x36, x34, (@as(u64, x18) + x6), x20); var x37: u64 = undefined; var x38: u64 = undefined; mulxU64(&x37, &x38, x1, 0x4fffffffd); @@ -1105,13 +1104,13 @@ pub fn toMontgomery(out1: *MontgomeryDomainFieldElement, arg1: NonMontgomeryDoma addcarryxU64(&x69, &x70, x68, x53, x65); var x71: u64 = undefined; var x72: u1 = undefined; - addcarryxU64(&x71, &x72, x70, x55, (cast(u64, x66) + x62)); + addcarryxU64(&x71, &x72, x70, x55, (@as(u64, x66) + x62)); var x73: u64 = undefined; var x74: u1 = undefined; addcarryxU64(&x73, &x74, x72, x57, x59); var x75: u64 = undefined; var x76: u1 = undefined; - addcarryxU64(&x75, &x76, x74, ((cast(u64, x58) + cast(u64, x36)) + (cast(u64, x50) + x38)), x60); + addcarryxU64(&x75, &x76, x74, ((@as(u64, x58) + @as(u64, x36)) + (@as(u64, x50) + x38)), x60); var x77: u64 = undefined; var x78: u64 = undefined; mulxU64(&x77, &x78, x2, 0x4fffffffd); @@ -1165,13 +1164,13 @@ pub fn toMontgomery(out1: *MontgomeryDomainFieldElement, arg1: NonMontgomeryDoma addcarryxU64(&x109, &x110, x108, x93, x105); var x111: u64 = undefined; var x112: u1 = undefined; - addcarryxU64(&x111, &x112, x110, x95, (cast(u64, x106) + x102)); + addcarryxU64(&x111, &x112, x110, x95, (@as(u64, x106) + x102)); var x113: u64 = undefined; var x114: u1 = undefined; addcarryxU64(&x113, &x114, x112, x97, x99); var x115: u64 = undefined; var x116: u1 = undefined; - addcarryxU64(&x115, &x116, x114, ((cast(u64, x98) + cast(u64, x76)) + (cast(u64, x90) + x78)), x100); + addcarryxU64(&x115, &x116, x114, ((@as(u64, x98) + @as(u64, x76)) + (@as(u64, x90) + x78)), x100); var x117: u64 = undefined; var x118: u64 = undefined; mulxU64(&x117, &x118, x3, 0x4fffffffd); @@ -1225,13 +1224,13 @@ pub fn toMontgomery(out1: *MontgomeryDomainFieldElement, arg1: NonMontgomeryDoma addcarryxU64(&x149, &x150, x148, x133, x145); var x151: u64 = undefined; var x152: u1 = undefined; - addcarryxU64(&x151, &x152, x150, x135, (cast(u64, x146) + x142)); + addcarryxU64(&x151, &x152, x150, x135, (@as(u64, x146) + x142)); var x153: u64 = undefined; var x154: u1 = undefined; addcarryxU64(&x153, &x154, x152, x137, x139); var x155: u64 = undefined; var x156: u1 = undefined; - addcarryxU64(&x155, &x156, x154, ((cast(u64, x138) + cast(u64, x116)) + (cast(u64, x130) + x118)), x140); + addcarryxU64(&x155, &x156, x154, ((@as(u64, x138) + @as(u64, x116)) + (@as(u64, x130) + x118)), x140); var x157: u64 = undefined; var x158: u1 = undefined; subborrowxU64(&x157, &x158, 0x0, x149, 0xffffffffffffffff); @@ -1240,13 +1239,13 @@ pub fn toMontgomery(out1: *MontgomeryDomainFieldElement, arg1: NonMontgomeryDoma subborrowxU64(&x159, &x160, x158, x151, 0xffffffff); var x161: u64 = undefined; var x162: u1 = undefined; - subborrowxU64(&x161, &x162, x160, x153, cast(u64, 0x0)); + subborrowxU64(&x161, &x162, x160, x153, @as(u64, 0x0)); var x163: u64 = undefined; var x164: u1 = undefined; subborrowxU64(&x163, &x164, x162, x155, 0xffffffff00000001); var x165: u64 = undefined; var x166: u1 = undefined; - subborrowxU64(&x165, &x166, x164, cast(u64, x156), cast(u64, 0x0)); + subborrowxU64(&x165, &x166, x164, @as(u64, x156), @as(u64, 0x0)); var x167: u64 = undefined; cmovznzU64(&x167, x166, x157, x149); var x168: u64 = undefined; @@ -1325,62 +1324,62 @@ pub fn toBytes(out1: *[32]u8, arg1: [4]u64) void { const x2 = (arg1[2]); const x3 = (arg1[1]); const x4 = (arg1[0]); - const x5 = cast(u8, (x4 & cast(u64, 0xff))); + const x5 = @truncate(u8, (x4 & @as(u64, 0xff))); const x6 = (x4 >> 8); - const x7 = cast(u8, (x6 & cast(u64, 0xff))); + const x7 = @truncate(u8, (x6 & @as(u64, 0xff))); const x8 = (x6 >> 8); - const x9 = cast(u8, (x8 & cast(u64, 0xff))); + const x9 = @truncate(u8, (x8 & @as(u64, 0xff))); const x10 = (x8 >> 8); - const x11 = cast(u8, (x10 & cast(u64, 0xff))); + const x11 = @truncate(u8, (x10 & @as(u64, 0xff))); const x12 = (x10 >> 8); - const x13 = cast(u8, (x12 & cast(u64, 0xff))); + const x13 = @truncate(u8, (x12 & @as(u64, 0xff))); const x14 = (x12 >> 8); - const x15 = cast(u8, (x14 & cast(u64, 0xff))); + const x15 = @truncate(u8, (x14 & @as(u64, 0xff))); const x16 = (x14 >> 8); - const x17 = cast(u8, (x16 & cast(u64, 0xff))); - const x18 = cast(u8, (x16 >> 8)); - const x19 = cast(u8, (x3 & cast(u64, 0xff))); + const x17 = @truncate(u8, (x16 & @as(u64, 0xff))); + const x18 = @truncate(u8, (x16 >> 8)); + const x19 = @truncate(u8, (x3 & @as(u64, 0xff))); const x20 = (x3 >> 8); - const x21 = cast(u8, (x20 & cast(u64, 0xff))); + const x21 = @truncate(u8, (x20 & @as(u64, 0xff))); const x22 = (x20 >> 8); - const x23 = cast(u8, (x22 & cast(u64, 0xff))); + const x23 = @truncate(u8, (x22 & @as(u64, 0xff))); const x24 = (x22 >> 8); - const x25 = cast(u8, (x24 & cast(u64, 0xff))); + const x25 = @truncate(u8, (x24 & @as(u64, 0xff))); const x26 = (x24 >> 8); - const x27 = cast(u8, (x26 & cast(u64, 0xff))); + const x27 = @truncate(u8, (x26 & @as(u64, 0xff))); const x28 = (x26 >> 8); - const x29 = cast(u8, (x28 & cast(u64, 0xff))); + const x29 = @truncate(u8, (x28 & @as(u64, 0xff))); const x30 = (x28 >> 8); - const x31 = cast(u8, (x30 & cast(u64, 0xff))); - const x32 = cast(u8, (x30 >> 8)); - const x33 = cast(u8, (x2 & cast(u64, 0xff))); + const x31 = @truncate(u8, (x30 & @as(u64, 0xff))); + const x32 = @truncate(u8, (x30 >> 8)); + const x33 = @truncate(u8, (x2 & @as(u64, 0xff))); const x34 = (x2 >> 8); - const x35 = cast(u8, (x34 & cast(u64, 0xff))); + const x35 = @truncate(u8, (x34 & @as(u64, 0xff))); const x36 = (x34 >> 8); - const x37 = cast(u8, (x36 & cast(u64, 0xff))); + const x37 = @truncate(u8, (x36 & @as(u64, 0xff))); const x38 = (x36 >> 8); - const x39 = cast(u8, (x38 & cast(u64, 0xff))); + const x39 = @truncate(u8, (x38 & @as(u64, 0xff))); const x40 = (x38 >> 8); - const x41 = cast(u8, (x40 & cast(u64, 0xff))); + const x41 = @truncate(u8, (x40 & @as(u64, 0xff))); const x42 = (x40 >> 8); - const x43 = cast(u8, (x42 & cast(u64, 0xff))); + const x43 = @truncate(u8, (x42 & @as(u64, 0xff))); const x44 = (x42 >> 8); - const x45 = cast(u8, (x44 & cast(u64, 0xff))); - const x46 = cast(u8, (x44 >> 8)); - const x47 = cast(u8, (x1 & cast(u64, 0xff))); + const x45 = @truncate(u8, (x44 & @as(u64, 0xff))); + const x46 = @truncate(u8, (x44 >> 8)); + const x47 = @truncate(u8, (x1 & @as(u64, 0xff))); const x48 = (x1 >> 8); - const x49 = cast(u8, (x48 & cast(u64, 0xff))); + const x49 = @truncate(u8, (x48 & @as(u64, 0xff))); const x50 = (x48 >> 8); - const x51 = cast(u8, (x50 & cast(u64, 0xff))); + const x51 = @truncate(u8, (x50 & @as(u64, 0xff))); const x52 = (x50 >> 8); - const x53 = cast(u8, (x52 & cast(u64, 0xff))); + const x53 = @truncate(u8, (x52 & @as(u64, 0xff))); const x54 = (x52 >> 8); - const x55 = cast(u8, (x54 & cast(u64, 0xff))); + const x55 = @truncate(u8, (x54 & @as(u64, 0xff))); const x56 = (x54 >> 8); - const x57 = cast(u8, (x56 & cast(u64, 0xff))); + const x57 = @truncate(u8, (x56 & @as(u64, 0xff))); const x58 = (x56 >> 8); - const x59 = cast(u8, (x58 & cast(u64, 0xff))); - const x60 = cast(u8, (x58 >> 8)); + const x59 = @truncate(u8, (x58 & @as(u64, 0xff))); + const x60 = @truncate(u8, (x58 >> 8)); out1[0] = x5; out1[1] = x7; out1[2] = x9; @@ -1430,60 +1429,60 @@ pub fn toBytes(out1: *[32]u8, arg1: [4]u64) void { pub fn fromBytes(out1: *[4]u64, arg1: [32]u8) void { @setRuntimeSafety(mode == .Debug); - const x1 = (cast(u64, (arg1[31])) << 56); - const x2 = (cast(u64, (arg1[30])) << 48); - const x3 = (cast(u64, (arg1[29])) << 40); - const x4 = (cast(u64, (arg1[28])) << 32); - const x5 = (cast(u64, (arg1[27])) << 24); - const x6 = (cast(u64, (arg1[26])) << 16); - const x7 = (cast(u64, (arg1[25])) << 8); + const x1 = (@as(u64, (arg1[31])) << 56); + const x2 = (@as(u64, (arg1[30])) << 48); + const x3 = (@as(u64, (arg1[29])) << 40); + const x4 = (@as(u64, (arg1[28])) << 32); + const x5 = (@as(u64, (arg1[27])) << 24); + const x6 = (@as(u64, (arg1[26])) << 16); + const x7 = (@as(u64, (arg1[25])) << 8); const x8 = (arg1[24]); - const x9 = (cast(u64, (arg1[23])) << 56); - const x10 = (cast(u64, (arg1[22])) << 48); - const x11 = (cast(u64, (arg1[21])) << 40); - const x12 = (cast(u64, (arg1[20])) << 32); - const x13 = (cast(u64, (arg1[19])) << 24); - const x14 = (cast(u64, (arg1[18])) << 16); - const x15 = (cast(u64, (arg1[17])) << 8); + const x9 = (@as(u64, (arg1[23])) << 56); + const x10 = (@as(u64, (arg1[22])) << 48); + const x11 = (@as(u64, (arg1[21])) << 40); + const x12 = (@as(u64, (arg1[20])) << 32); + const x13 = (@as(u64, (arg1[19])) << 24); + const x14 = (@as(u64, (arg1[18])) << 16); + const x15 = (@as(u64, (arg1[17])) << 8); const x16 = (arg1[16]); - const x17 = (cast(u64, (arg1[15])) << 56); - const x18 = (cast(u64, (arg1[14])) << 48); - const x19 = (cast(u64, (arg1[13])) << 40); - const x20 = (cast(u64, (arg1[12])) << 32); - const x21 = (cast(u64, (arg1[11])) << 24); - const x22 = (cast(u64, (arg1[10])) << 16); - const x23 = (cast(u64, (arg1[9])) << 8); + const x17 = (@as(u64, (arg1[15])) << 56); + const x18 = (@as(u64, (arg1[14])) << 48); + const x19 = (@as(u64, (arg1[13])) << 40); + const x20 = (@as(u64, (arg1[12])) << 32); + const x21 = (@as(u64, (arg1[11])) << 24); + const x22 = (@as(u64, (arg1[10])) << 16); + const x23 = (@as(u64, (arg1[9])) << 8); const x24 = (arg1[8]); - const x25 = (cast(u64, (arg1[7])) << 56); - const x26 = (cast(u64, (arg1[6])) << 48); - const x27 = (cast(u64, (arg1[5])) << 40); - const x28 = (cast(u64, (arg1[4])) << 32); - const x29 = (cast(u64, (arg1[3])) << 24); - const x30 = (cast(u64, (arg1[2])) << 16); - const x31 = (cast(u64, (arg1[1])) << 8); + const x25 = (@as(u64, (arg1[7])) << 56); + const x26 = (@as(u64, (arg1[6])) << 48); + const x27 = (@as(u64, (arg1[5])) << 40); + const x28 = (@as(u64, (arg1[4])) << 32); + const x29 = (@as(u64, (arg1[3])) << 24); + const x30 = (@as(u64, (arg1[2])) << 16); + const x31 = (@as(u64, (arg1[1])) << 8); const x32 = (arg1[0]); - const x33 = (x31 + cast(u64, x32)); + const x33 = (x31 + @as(u64, x32)); const x34 = (x30 + x33); const x35 = (x29 + x34); const x36 = (x28 + x35); const x37 = (x27 + x36); const x38 = (x26 + x37); const x39 = (x25 + x38); - const x40 = (x23 + cast(u64, x24)); + const x40 = (x23 + @as(u64, x24)); const x41 = (x22 + x40); const x42 = (x21 + x41); const x43 = (x20 + x42); const x44 = (x19 + x43); const x45 = (x18 + x44); const x46 = (x17 + x45); - const x47 = (x15 + cast(u64, x16)); + const x47 = (x15 + @as(u64, x16)); const x48 = (x14 + x47); const x49 = (x13 + x48); const x50 = (x12 + x49); const x51 = (x11 + x50); const x52 = (x10 + x51); const x53 = (x9 + x52); - const x54 = (x7 + cast(u64, x8)); + const x54 = (x7 + @as(u64, x8)); const x55 = (x6 + x54); const x56 = (x5 + x55); const x57 = (x4 + x56); @@ -1505,7 +1504,7 @@ pub fn fromBytes(out1: *[4]u64, arg1: [32]u8) void { pub fn setOne(out1: *MontgomeryDomainFieldElement) void { @setRuntimeSafety(mode == .Debug); - out1[0] = cast(u64, 0x1); + out1[0] = @as(u64, 0x1); out1[1] = 0xffffffff00000000; out1[2] = 0xffffffffffffffff; out1[3] = 0xfffffffe; @@ -1524,9 +1523,9 @@ pub fn msat(out1: *[5]u64) void { out1[0] = 0xffffffffffffffff; out1[1] = 0xffffffff; - out1[2] = cast(u64, 0x0); + out1[2] = @as(u64, 0x0); out1[3] = 0xffffffff00000001; - out1[4] = cast(u64, 0x0); + out1[4] = @as(u64, 0x0); } /// The function divstep computes a divstep. @@ -1562,11 +1561,11 @@ pub fn divstep(out1: *u64, out2: *[5]u64, out3: *[5]u64, out4: *[4]u64, out5: *[ var x1: u64 = undefined; var x2: u1 = undefined; - addcarryxU64(&x1, &x2, 0x0, (~arg1), cast(u64, 0x1)); - const x3 = (cast(u1, (x1 >> 63)) & cast(u1, ((arg3[0]) & cast(u64, 0x1)))); + addcarryxU64(&x1, &x2, 0x0, (~arg1), @as(u64, 0x1)); + const x3 = (@truncate(u1, (x1 >> 63)) & @truncate(u1, ((arg3[0]) & @as(u64, 0x1)))); var x4: u64 = undefined; var x5: u1 = undefined; - addcarryxU64(&x4, &x5, 0x0, (~arg1), cast(u64, 0x1)); + addcarryxU64(&x4, &x5, 0x0, (~arg1), @as(u64, 0x1)); var x6: u64 = undefined; cmovznzU64(&x6, x3, arg1, x4); var x7: u64 = undefined; @@ -1581,19 +1580,19 @@ pub fn divstep(out1: *u64, out2: *[5]u64, out3: *[5]u64, out4: *[4]u64, out5: *[ cmovznzU64(&x11, x3, (arg2[4]), (arg3[4])); var x12: u64 = undefined; var x13: u1 = undefined; - addcarryxU64(&x12, &x13, 0x0, cast(u64, 0x1), (~(arg2[0]))); + addcarryxU64(&x12, &x13, 0x0, @as(u64, 0x1), (~(arg2[0]))); var x14: u64 = undefined; var x15: u1 = undefined; - addcarryxU64(&x14, &x15, x13, cast(u64, 0x0), (~(arg2[1]))); + addcarryxU64(&x14, &x15, x13, @as(u64, 0x0), (~(arg2[1]))); var x16: u64 = undefined; var x17: u1 = undefined; - addcarryxU64(&x16, &x17, x15, cast(u64, 0x0), (~(arg2[2]))); + addcarryxU64(&x16, &x17, x15, @as(u64, 0x0), (~(arg2[2]))); var x18: u64 = undefined; var x19: u1 = undefined; - addcarryxU64(&x18, &x19, x17, cast(u64, 0x0), (~(arg2[3]))); + addcarryxU64(&x18, &x19, x17, @as(u64, 0x0), (~(arg2[3]))); var x20: u64 = undefined; var x21: u1 = undefined; - addcarryxU64(&x20, &x21, x19, cast(u64, 0x0), (~(arg2[4]))); + addcarryxU64(&x20, &x21, x19, @as(u64, 0x0), (~(arg2[4]))); var x22: u64 = undefined; cmovznzU64(&x22, x3, (arg3[0]), x12); var x23: u64 = undefined; @@ -1632,31 +1631,31 @@ pub fn divstep(out1: *u64, out2: *[5]u64, out3: *[5]u64, out4: *[4]u64, out5: *[ subborrowxU64(&x41, &x42, x40, x33, 0xffffffff); var x43: u64 = undefined; var x44: u1 = undefined; - subborrowxU64(&x43, &x44, x42, x35, cast(u64, 0x0)); + subborrowxU64(&x43, &x44, x42, x35, @as(u64, 0x0)); var x45: u64 = undefined; var x46: u1 = undefined; subborrowxU64(&x45, &x46, x44, x37, 0xffffffff00000001); var x47: u64 = undefined; var x48: u1 = undefined; - subborrowxU64(&x47, &x48, x46, cast(u64, x38), cast(u64, 0x0)); + subborrowxU64(&x47, &x48, x46, @as(u64, x38), @as(u64, 0x0)); const x49 = (arg4[3]); const x50 = (arg4[2]); const x51 = (arg4[1]); const x52 = (arg4[0]); var x53: u64 = undefined; var x54: u1 = undefined; - subborrowxU64(&x53, &x54, 0x0, cast(u64, 0x0), x52); + subborrowxU64(&x53, &x54, 0x0, @as(u64, 0x0), x52); var x55: u64 = undefined; var x56: u1 = undefined; - subborrowxU64(&x55, &x56, x54, cast(u64, 0x0), x51); + subborrowxU64(&x55, &x56, x54, @as(u64, 0x0), x51); var x57: u64 = undefined; var x58: u1 = undefined; - subborrowxU64(&x57, &x58, x56, cast(u64, 0x0), x50); + subborrowxU64(&x57, &x58, x56, @as(u64, 0x0), x50); var x59: u64 = undefined; var x60: u1 = undefined; - subborrowxU64(&x59, &x60, x58, cast(u64, 0x0), x49); + subborrowxU64(&x59, &x60, x58, @as(u64, 0x0), x49); var x61: u64 = undefined; - cmovznzU64(&x61, x60, cast(u64, 0x0), 0xffffffffffffffff); + cmovznzU64(&x61, x60, @as(u64, 0x0), 0xffffffffffffffff); var x62: u64 = undefined; var x63: u1 = undefined; addcarryxU64(&x62, &x63, 0x0, x53, x61); @@ -1665,7 +1664,7 @@ pub fn divstep(out1: *u64, out2: *[5]u64, out3: *[5]u64, out4: *[4]u64, out5: *[ addcarryxU64(&x64, &x65, x63, x55, (x61 & 0xffffffff)); var x66: u64 = undefined; var x67: u1 = undefined; - addcarryxU64(&x66, &x67, x65, x57, cast(u64, 0x0)); + addcarryxU64(&x66, &x67, x65, x57, @as(u64, 0x0)); var x68: u64 = undefined; var x69: u1 = undefined; addcarryxU64(&x68, &x69, x67, x59, (x61 & 0xffffffff00000001)); @@ -1677,17 +1676,17 @@ pub fn divstep(out1: *u64, out2: *[5]u64, out3: *[5]u64, out4: *[4]u64, out5: *[ cmovznzU64(&x72, x3, (arg5[2]), x66); var x73: u64 = undefined; cmovznzU64(&x73, x3, (arg5[3]), x68); - const x74 = cast(u1, (x22 & cast(u64, 0x1))); + const x74 = @truncate(u1, (x22 & @as(u64, 0x1))); var x75: u64 = undefined; - cmovznzU64(&x75, x74, cast(u64, 0x0), x7); + cmovznzU64(&x75, x74, @as(u64, 0x0), x7); var x76: u64 = undefined; - cmovznzU64(&x76, x74, cast(u64, 0x0), x8); + cmovznzU64(&x76, x74, @as(u64, 0x0), x8); var x77: u64 = undefined; - cmovznzU64(&x77, x74, cast(u64, 0x0), x9); + cmovznzU64(&x77, x74, @as(u64, 0x0), x9); var x78: u64 = undefined; - cmovznzU64(&x78, x74, cast(u64, 0x0), x10); + cmovznzU64(&x78, x74, @as(u64, 0x0), x10); var x79: u64 = undefined; - cmovznzU64(&x79, x74, cast(u64, 0x0), x11); + cmovznzU64(&x79, x74, @as(u64, 0x0), x11); var x80: u64 = undefined; var x81: u1 = undefined; addcarryxU64(&x80, &x81, 0x0, x22, x75); @@ -1704,13 +1703,13 @@ pub fn divstep(out1: *u64, out2: *[5]u64, out3: *[5]u64, out4: *[4]u64, out5: *[ var x89: u1 = undefined; addcarryxU64(&x88, &x89, x87, x26, x79); var x90: u64 = undefined; - cmovznzU64(&x90, x74, cast(u64, 0x0), x27); + cmovznzU64(&x90, x74, @as(u64, 0x0), x27); var x91: u64 = undefined; - cmovznzU64(&x91, x74, cast(u64, 0x0), x28); + cmovznzU64(&x91, x74, @as(u64, 0x0), x28); var x92: u64 = undefined; - cmovznzU64(&x92, x74, cast(u64, 0x0), x29); + cmovznzU64(&x92, x74, @as(u64, 0x0), x29); var x93: u64 = undefined; - cmovznzU64(&x93, x74, cast(u64, 0x0), x30); + cmovznzU64(&x93, x74, @as(u64, 0x0), x30); var x94: u64 = undefined; var x95: u1 = undefined; addcarryxU64(&x94, &x95, 0x0, x70, x90); @@ -1731,16 +1730,16 @@ pub fn divstep(out1: *u64, out2: *[5]u64, out3: *[5]u64, out4: *[4]u64, out5: *[ subborrowxU64(&x104, &x105, x103, x96, 0xffffffff); var x106: u64 = undefined; var x107: u1 = undefined; - subborrowxU64(&x106, &x107, x105, x98, cast(u64, 0x0)); + subborrowxU64(&x106, &x107, x105, x98, @as(u64, 0x0)); var x108: u64 = undefined; var x109: u1 = undefined; subborrowxU64(&x108, &x109, x107, x100, 0xffffffff00000001); var x110: u64 = undefined; var x111: u1 = undefined; - subborrowxU64(&x110, &x111, x109, cast(u64, x101), cast(u64, 0x0)); + subborrowxU64(&x110, &x111, x109, @as(u64, x101), @as(u64, 0x0)); var x112: u64 = undefined; var x113: u1 = undefined; - addcarryxU64(&x112, &x113, 0x0, x6, cast(u64, 0x1)); + addcarryxU64(&x112, &x113, 0x0, x6, @as(u64, 0x1)); const x114 = ((x80 >> 1) | ((x82 << 63) & 0xffffffffffffffff)); const x115 = ((x82 >> 1) | ((x84 << 63) & 0xffffffffffffffff)); const x116 = ((x84 >> 1) | ((x86 << 63) & 0xffffffffffffffff)); diff --git a/lib/std/crypto/pcurves/p256/p256_scalar_64.zig b/lib/std/crypto/pcurves/p256/p256_scalar_64.zig index 491988f8ee..d16bdb1316 100644 --- a/lib/std/crypto/pcurves/p256/p256_scalar_64.zig +++ b/lib/std/crypto/pcurves/p256/p256_scalar_64.zig @@ -18,7 +18,6 @@ // if x1 & (2^256-1) < 2^255 then x1 & (2^256-1) else (x1 & (2^256-1)) - 2^256 const std = @import("std"); -const cast = std.meta.cast; const mode = std.builtin.mode; // Checked arithmetic is disabled in non-debug modes to avoid side channels // The type MontgomeryDomainFieldElement is a field element in the Montgomery domain. @@ -148,7 +147,7 @@ pub fn mul(out1: *MontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldEleme var x17: u64 = undefined; var x18: u1 = undefined; addcarryxU64(&x17, &x18, x16, x8, x5); - const x19 = (cast(u64, x18) + x6); + const x19 = (@as(u64, x18) + x6); var x20: u64 = undefined; var x21: u64 = undefined; mulxU64(&x20, &x21, x11, 0xccd1c8aaee00bc4f); @@ -173,7 +172,7 @@ pub fn mul(out1: *MontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldEleme var x34: u64 = undefined; var x35: u1 = undefined; addcarryxU64(&x34, &x35, x33, x25, x22); - const x36 = (cast(u64, x35) + x23); + const x36 = (@as(u64, x35) + x23); var x37: u64 = undefined; var x38: u1 = undefined; addcarryxU64(&x37, &x38, 0x0, x11, x28); @@ -210,7 +209,7 @@ pub fn mul(out1: *MontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldEleme var x59: u64 = undefined; var x60: u1 = undefined; addcarryxU64(&x59, &x60, x58, x50, x47); - const x61 = (cast(u64, x60) + x48); + const x61 = (@as(u64, x60) + x48); var x62: u64 = undefined; var x63: u1 = undefined; addcarryxU64(&x62, &x63, 0x0, x39, x53); @@ -225,7 +224,7 @@ pub fn mul(out1: *MontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldEleme addcarryxU64(&x68, &x69, x67, x45, x59); var x70: u64 = undefined; var x71: u1 = undefined; - addcarryxU64(&x70, &x71, x69, cast(u64, x46), x61); + addcarryxU64(&x70, &x71, x69, @as(u64, x46), x61); var x72: u64 = undefined; var x73: u64 = undefined; mulxU64(&x72, &x73, x62, 0xccd1c8aaee00bc4f); @@ -250,7 +249,7 @@ pub fn mul(out1: *MontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldEleme var x86: u64 = undefined; var x87: u1 = undefined; addcarryxU64(&x86, &x87, x85, x77, x74); - const x88 = (cast(u64, x87) + x75); + const x88 = (@as(u64, x87) + x75); var x89: u64 = undefined; var x90: u1 = undefined; addcarryxU64(&x89, &x90, 0x0, x62, x80); @@ -266,7 +265,7 @@ pub fn mul(out1: *MontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldEleme var x97: u64 = undefined; var x98: u1 = undefined; addcarryxU64(&x97, &x98, x96, x70, x88); - const x99 = (cast(u64, x98) + cast(u64, x71)); + const x99 = (@as(u64, x98) + @as(u64, x71)); var x100: u64 = undefined; var x101: u64 = undefined; mulxU64(&x100, &x101, x2, (arg2[3])); @@ -288,7 +287,7 @@ pub fn mul(out1: *MontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldEleme var x112: u64 = undefined; var x113: u1 = undefined; addcarryxU64(&x112, &x113, x111, x103, x100); - const x114 = (cast(u64, x113) + x101); + const x114 = (@as(u64, x113) + x101); var x115: u64 = undefined; var x116: u1 = undefined; addcarryxU64(&x115, &x116, 0x0, x91, x106); @@ -328,7 +327,7 @@ pub fn mul(out1: *MontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldEleme var x139: u64 = undefined; var x140: u1 = undefined; addcarryxU64(&x139, &x140, x138, x130, x127); - const x141 = (cast(u64, x140) + x128); + const x141 = (@as(u64, x140) + x128); var x142: u64 = undefined; var x143: u1 = undefined; addcarryxU64(&x142, &x143, 0x0, x115, x133); @@ -344,7 +343,7 @@ pub fn mul(out1: *MontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldEleme var x150: u64 = undefined; var x151: u1 = undefined; addcarryxU64(&x150, &x151, x149, x123, x141); - const x152 = (cast(u64, x151) + cast(u64, x124)); + const x152 = (@as(u64, x151) + @as(u64, x124)); var x153: u64 = undefined; var x154: u64 = undefined; mulxU64(&x153, &x154, x3, (arg2[3])); @@ -366,7 +365,7 @@ pub fn mul(out1: *MontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldEleme var x165: u64 = undefined; var x166: u1 = undefined; addcarryxU64(&x165, &x166, x164, x156, x153); - const x167 = (cast(u64, x166) + x154); + const x167 = (@as(u64, x166) + x154); var x168: u64 = undefined; var x169: u1 = undefined; addcarryxU64(&x168, &x169, 0x0, x144, x159); @@ -406,7 +405,7 @@ pub fn mul(out1: *MontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldEleme var x192: u64 = undefined; var x193: u1 = undefined; addcarryxU64(&x192, &x193, x191, x183, x180); - const x194 = (cast(u64, x193) + x181); + const x194 = (@as(u64, x193) + x181); var x195: u64 = undefined; var x196: u1 = undefined; addcarryxU64(&x195, &x196, 0x0, x168, x186); @@ -422,7 +421,7 @@ pub fn mul(out1: *MontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldEleme var x203: u64 = undefined; var x204: u1 = undefined; addcarryxU64(&x203, &x204, x202, x176, x194); - const x205 = (cast(u64, x204) + cast(u64, x177)); + const x205 = (@as(u64, x204) + @as(u64, x177)); var x206: u64 = undefined; var x207: u1 = undefined; subborrowxU64(&x206, &x207, 0x0, x197, 0xf3b9cac2fc632551); @@ -437,7 +436,7 @@ pub fn mul(out1: *MontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldEleme subborrowxU64(&x212, &x213, x211, x203, 0xffffffff00000000); var x214: u64 = undefined; var x215: u1 = undefined; - subborrowxU64(&x214, &x215, x213, x205, cast(u64, 0x0)); + subborrowxU64(&x214, &x215, x213, x205, @as(u64, 0x0)); var x216: u64 = undefined; cmovznzU64(&x216, x215, x206, x197); var x217: u64 = undefined; @@ -488,7 +487,7 @@ pub fn square(out1: *MontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldEl var x17: u64 = undefined; var x18: u1 = undefined; addcarryxU64(&x17, &x18, x16, x8, x5); - const x19 = (cast(u64, x18) + x6); + const x19 = (@as(u64, x18) + x6); var x20: u64 = undefined; var x21: u64 = undefined; mulxU64(&x20, &x21, x11, 0xccd1c8aaee00bc4f); @@ -513,7 +512,7 @@ pub fn square(out1: *MontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldEl var x34: u64 = undefined; var x35: u1 = undefined; addcarryxU64(&x34, &x35, x33, x25, x22); - const x36 = (cast(u64, x35) + x23); + const x36 = (@as(u64, x35) + x23); var x37: u64 = undefined; var x38: u1 = undefined; addcarryxU64(&x37, &x38, 0x0, x11, x28); @@ -550,7 +549,7 @@ pub fn square(out1: *MontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldEl var x59: u64 = undefined; var x60: u1 = undefined; addcarryxU64(&x59, &x60, x58, x50, x47); - const x61 = (cast(u64, x60) + x48); + const x61 = (@as(u64, x60) + x48); var x62: u64 = undefined; var x63: u1 = undefined; addcarryxU64(&x62, &x63, 0x0, x39, x53); @@ -565,7 +564,7 @@ pub fn square(out1: *MontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldEl addcarryxU64(&x68, &x69, x67, x45, x59); var x70: u64 = undefined; var x71: u1 = undefined; - addcarryxU64(&x70, &x71, x69, cast(u64, x46), x61); + addcarryxU64(&x70, &x71, x69, @as(u64, x46), x61); var x72: u64 = undefined; var x73: u64 = undefined; mulxU64(&x72, &x73, x62, 0xccd1c8aaee00bc4f); @@ -590,7 +589,7 @@ pub fn square(out1: *MontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldEl var x86: u64 = undefined; var x87: u1 = undefined; addcarryxU64(&x86, &x87, x85, x77, x74); - const x88 = (cast(u64, x87) + x75); + const x88 = (@as(u64, x87) + x75); var x89: u64 = undefined; var x90: u1 = undefined; addcarryxU64(&x89, &x90, 0x0, x62, x80); @@ -606,7 +605,7 @@ pub fn square(out1: *MontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldEl var x97: u64 = undefined; var x98: u1 = undefined; addcarryxU64(&x97, &x98, x96, x70, x88); - const x99 = (cast(u64, x98) + cast(u64, x71)); + const x99 = (@as(u64, x98) + @as(u64, x71)); var x100: u64 = undefined; var x101: u64 = undefined; mulxU64(&x100, &x101, x2, (arg1[3])); @@ -628,7 +627,7 @@ pub fn square(out1: *MontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldEl var x112: u64 = undefined; var x113: u1 = undefined; addcarryxU64(&x112, &x113, x111, x103, x100); - const x114 = (cast(u64, x113) + x101); + const x114 = (@as(u64, x113) + x101); var x115: u64 = undefined; var x116: u1 = undefined; addcarryxU64(&x115, &x116, 0x0, x91, x106); @@ -668,7 +667,7 @@ pub fn square(out1: *MontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldEl var x139: u64 = undefined; var x140: u1 = undefined; addcarryxU64(&x139, &x140, x138, x130, x127); - const x141 = (cast(u64, x140) + x128); + const x141 = (@as(u64, x140) + x128); var x142: u64 = undefined; var x143: u1 = undefined; addcarryxU64(&x142, &x143, 0x0, x115, x133); @@ -684,7 +683,7 @@ pub fn square(out1: *MontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldEl var x150: u64 = undefined; var x151: u1 = undefined; addcarryxU64(&x150, &x151, x149, x123, x141); - const x152 = (cast(u64, x151) + cast(u64, x124)); + const x152 = (@as(u64, x151) + @as(u64, x124)); var x153: u64 = undefined; var x154: u64 = undefined; mulxU64(&x153, &x154, x3, (arg1[3])); @@ -706,7 +705,7 @@ pub fn square(out1: *MontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldEl var x165: u64 = undefined; var x166: u1 = undefined; addcarryxU64(&x165, &x166, x164, x156, x153); - const x167 = (cast(u64, x166) + x154); + const x167 = (@as(u64, x166) + x154); var x168: u64 = undefined; var x169: u1 = undefined; addcarryxU64(&x168, &x169, 0x0, x144, x159); @@ -746,7 +745,7 @@ pub fn square(out1: *MontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldEl var x192: u64 = undefined; var x193: u1 = undefined; addcarryxU64(&x192, &x193, x191, x183, x180); - const x194 = (cast(u64, x193) + x181); + const x194 = (@as(u64, x193) + x181); var x195: u64 = undefined; var x196: u1 = undefined; addcarryxU64(&x195, &x196, 0x0, x168, x186); @@ -762,7 +761,7 @@ pub fn square(out1: *MontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldEl var x203: u64 = undefined; var x204: u1 = undefined; addcarryxU64(&x203, &x204, x202, x176, x194); - const x205 = (cast(u64, x204) + cast(u64, x177)); + const x205 = (@as(u64, x204) + @as(u64, x177)); var x206: u64 = undefined; var x207: u1 = undefined; subborrowxU64(&x206, &x207, 0x0, x197, 0xf3b9cac2fc632551); @@ -777,7 +776,7 @@ pub fn square(out1: *MontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldEl subborrowxU64(&x212, &x213, x211, x203, 0xffffffff00000000); var x214: u64 = undefined; var x215: u1 = undefined; - subborrowxU64(&x214, &x215, x213, x205, cast(u64, 0x0)); + subborrowxU64(&x214, &x215, x213, x205, @as(u64, 0x0)); var x216: u64 = undefined; cmovznzU64(&x216, x215, x206, x197); var x217: u64 = undefined; @@ -830,7 +829,7 @@ pub fn add(out1: *MontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldEleme subborrowxU64(&x15, &x16, x14, x7, 0xffffffff00000000); var x17: u64 = undefined; var x18: u1 = undefined; - subborrowxU64(&x17, &x18, x16, cast(u64, x8), cast(u64, 0x0)); + subborrowxU64(&x17, &x18, x16, @as(u64, x8), @as(u64, 0x0)); var x19: u64 = undefined; cmovznzU64(&x19, x18, x9, x1); var x20: u64 = undefined; @@ -870,7 +869,7 @@ pub fn sub(out1: *MontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldEleme var x8: u1 = undefined; subborrowxU64(&x7, &x8, x6, (arg1[3]), (arg2[3])); var x9: u64 = undefined; - cmovznzU64(&x9, x8, cast(u64, 0x0), 0xffffffffffffffff); + cmovznzU64(&x9, x8, @as(u64, 0x0), 0xffffffffffffffff); var x10: u64 = undefined; var x11: u1 = undefined; addcarryxU64(&x10, &x11, 0x0, x1, (x9 & 0xf3b9cac2fc632551)); @@ -902,18 +901,18 @@ pub fn opp(out1: *MontgomeryDomainFieldElement, arg1: MontgomeryDomainFieldEleme var x1: u64 = undefined; var x2: u1 = undefined; - subborrowxU64(&x1, &x2, 0x0, cast(u64, 0x0), (arg1[0])); + subborrowxU64(&x1, &x2, 0x0, @as(u64, 0x0), (arg1[0])); var x3: u64 = undefined; var x4: u1 = undefined; - subborrowxU64(&x3, &x4, x2, cast(u64, 0x0), (arg1[1])); + subborrowxU64(&x3, &x4, x2, @as(u64, 0x0), (arg1[1])); var x5: u64 = undefined; var x6: u1 = undefined; - subborrowxU64(&x5, &x6, x4, cast(u64, 0x0), (arg1[2])); + subborrowxU64(&x5, &x6, x4, @as(u64, 0x0), (arg1[2])); var x7: u64 = undefined; var x8: u1 = undefined; - subborrowxU64(&x7, &x8, x6, cast(u64, 0x0), (arg1[3])); + subborrowxU64(&x7, &x8, x6, @as(u64, 0x0), (arg1[3])); var x9: u64 = undefined; - cmovznzU64(&x9, x8, cast(u64, 0x0), 0xffffffffffffffff); + cmovznzU64(&x9, x8, @as(u64, 0x0), 0xffffffffffffffff); var x10: u64 = undefined; var x11: u1 = undefined; addcarryxU64(&x10, &x11, 0x0, x1, (x9 & 0xf3b9cac2fc632551)); @@ -973,22 +972,22 @@ pub fn fromMontgomery(out1: *NonMontgomeryDomainFieldElement, arg1: MontgomeryDo addcarryxU64(&x18, &x19, 0x0, x1, x10); var x20: u64 = undefined; var x21: u1 = undefined; - addcarryxU64(&x20, &x21, x19, cast(u64, 0x0), x12); + addcarryxU64(&x20, &x21, x19, @as(u64, 0x0), x12); var x22: u64 = undefined; var x23: u1 = undefined; - addcarryxU64(&x22, &x23, x21, cast(u64, 0x0), x14); + addcarryxU64(&x22, &x23, x21, @as(u64, 0x0), x14); var x24: u64 = undefined; var x25: u1 = undefined; - addcarryxU64(&x24, &x25, x23, cast(u64, 0x0), x16); + addcarryxU64(&x24, &x25, x23, @as(u64, 0x0), x16); var x26: u64 = undefined; var x27: u1 = undefined; addcarryxU64(&x26, &x27, 0x0, x20, (arg1[1])); var x28: u64 = undefined; var x29: u1 = undefined; - addcarryxU64(&x28, &x29, x27, x22, cast(u64, 0x0)); + addcarryxU64(&x28, &x29, x27, x22, @as(u64, 0x0)); var x30: u64 = undefined; var x31: u1 = undefined; - addcarryxU64(&x30, &x31, x29, x24, cast(u64, 0x0)); + addcarryxU64(&x30, &x31, x29, x24, @as(u64, 0x0)); var x32: u64 = undefined; var x33: u64 = undefined; mulxU64(&x32, &x33, x26, 0xccd1c8aaee00bc4f); @@ -1024,16 +1023,16 @@ pub fn fromMontgomery(out1: *NonMontgomeryDomainFieldElement, arg1: MontgomeryDo addcarryxU64(&x52, &x53, x51, x30, x44); var x54: u64 = undefined; var x55: u1 = undefined; - addcarryxU64(&x54, &x55, x53, (cast(u64, x31) + (cast(u64, x25) + (cast(u64, x17) + x5))), x46); + addcarryxU64(&x54, &x55, x53, (@as(u64, x31) + (@as(u64, x25) + (@as(u64, x17) + x5))), x46); var x56: u64 = undefined; var x57: u1 = undefined; addcarryxU64(&x56, &x57, 0x0, x50, (arg1[2])); var x58: u64 = undefined; var x59: u1 = undefined; - addcarryxU64(&x58, &x59, x57, x52, cast(u64, 0x0)); + addcarryxU64(&x58, &x59, x57, x52, @as(u64, 0x0)); var x60: u64 = undefined; var x61: u1 = undefined; - addcarryxU64(&x60, &x61, x59, x54, cast(u64, 0x0)); + addcarryxU64(&x60, &x61, x59, x54, @as(u64, 0x0)); var x62: u64 = undefined; var x63: u64 = undefined; mulxU64(&x62, &x63, x56, 0xccd1c8aaee00bc4f); @@ -1069,16 +1068,16 @@ pub fn fromMontgomery(out1: *NonMontgomeryDomainFieldElement, arg1: MontgomeryDo addcarryxU64(&x82, &x83, x81, x60, x74); var x84: u64 = undefined; var x85: u1 = undefined; - addcarryxU64(&x84, &x85, x83, (cast(u64, x61) + (cast(u64, x55) + (cast(u64, x47) + x35))), x76); + addcarryxU64(&x84, &x85, x83, (@as(u64, x61) + (@as(u64, x55) + (@as(u64, x47) + x35))), x76); var x86: u64 = undefined; var x87: u1 = undefined; addcarryxU64(&x86, &x87, 0x0, x80, (arg1[3])); var x88: u64 = undefined; var x89: u1 = undefined; - addcarryxU64(&x88, &x89, x87, x82, cast(u64, 0x0)); + addcarryxU64(&x88, &x89, x87, x82, @as(u64, 0x0)); var x90: u64 = undefined; var x91: u1 = undefined; - addcarryxU64(&x90, &x91, x89, x84, cast(u64, 0x0)); + addcarryxU64(&x90, &x91, x89, x84, @as(u64, 0x0)); var x92: u64 = undefined; var x93: u64 = undefined; mulxU64(&x92, &x93, x86, 0xccd1c8aaee00bc4f); @@ -1114,8 +1113,8 @@ pub fn fromMontgomery(out1: *NonMontgomeryDomainFieldElement, arg1: MontgomeryDo addcarryxU64(&x112, &x113, x111, x90, x104); var x114: u64 = undefined; var x115: u1 = undefined; - addcarryxU64(&x114, &x115, x113, (cast(u64, x91) + (cast(u64, x85) + (cast(u64, x77) + x65))), x106); - const x116 = (cast(u64, x115) + (cast(u64, x107) + x95)); + addcarryxU64(&x114, &x115, x113, (@as(u64, x91) + (@as(u64, x85) + (@as(u64, x77) + x65))), x106); + const x116 = (@as(u64, x115) + (@as(u64, x107) + x95)); var x117: u64 = undefined; var x118: u1 = undefined; subborrowxU64(&x117, &x118, 0x0, x110, 0xf3b9cac2fc632551); @@ -1130,7 +1129,7 @@ pub fn fromMontgomery(out1: *NonMontgomeryDomainFieldElement, arg1: MontgomeryDo subborrowxU64(&x123, &x124, x122, x116, 0xffffffff00000000); var x125: u64 = undefined; var x126: u1 = undefined; - subborrowxU64(&x125, &x126, x124, cast(u64, 0x0), cast(u64, 0x0)); + subborrowxU64(&x125, &x126, x124, @as(u64, 0x0), @as(u64, 0x0)); var x127: u64 = undefined; cmovznzU64(&x127, x126, x117, x110); var x128: u64 = undefined; @@ -1219,7 +1218,7 @@ pub fn toMontgomery(out1: *MontgomeryDomainFieldElement, arg1: NonMontgomeryDoma addcarryxU64(&x41, &x42, x40, x17, x33); var x43: u64 = undefined; var x44: u1 = undefined; - addcarryxU64(&x43, &x44, x42, (cast(u64, x18) + x6), (cast(u64, x34) + x22)); + addcarryxU64(&x43, &x44, x42, (@as(u64, x18) + x6), (@as(u64, x34) + x22)); var x45: u64 = undefined; var x46: u64 = undefined; mulxU64(&x45, &x46, x1, 0x66e12d94f3d95620); @@ -1291,7 +1290,7 @@ pub fn toMontgomery(out1: *MontgomeryDomainFieldElement, arg1: NonMontgomeryDoma addcarryxU64(&x89, &x90, x88, x65, x81); var x91: u64 = undefined; var x92: u1 = undefined; - addcarryxU64(&x91, &x92, x90, ((cast(u64, x66) + cast(u64, x44)) + (cast(u64, x58) + x46)), (cast(u64, x82) + x70)); + addcarryxU64(&x91, &x92, x90, ((@as(u64, x66) + @as(u64, x44)) + (@as(u64, x58) + x46)), (@as(u64, x82) + x70)); var x93: u64 = undefined; var x94: u64 = undefined; mulxU64(&x93, &x94, x2, 0x66e12d94f3d95620); @@ -1363,7 +1362,7 @@ pub fn toMontgomery(out1: *MontgomeryDomainFieldElement, arg1: NonMontgomeryDoma addcarryxU64(&x137, &x138, x136, x113, x129); var x139: u64 = undefined; var x140: u1 = undefined; - addcarryxU64(&x139, &x140, x138, ((cast(u64, x114) + cast(u64, x92)) + (cast(u64, x106) + x94)), (cast(u64, x130) + x118)); + addcarryxU64(&x139, &x140, x138, ((@as(u64, x114) + @as(u64, x92)) + (@as(u64, x106) + x94)), (@as(u64, x130) + x118)); var x141: u64 = undefined; var x142: u64 = undefined; mulxU64(&x141, &x142, x3, 0x66e12d94f3d95620); @@ -1435,7 +1434,7 @@ pub fn toMontgomery(out1: *MontgomeryDomainFieldElement, arg1: NonMontgomeryDoma addcarryxU64(&x185, &x186, x184, x161, x177); var x187: u64 = undefined; var x188: u1 = undefined; - addcarryxU64(&x187, &x188, x186, ((cast(u64, x162) + cast(u64, x140)) + (cast(u64, x154) + x142)), (cast(u64, x178) + x166)); + addcarryxU64(&x187, &x188, x186, ((@as(u64, x162) + @as(u64, x140)) + (@as(u64, x154) + x142)), (@as(u64, x178) + x166)); var x189: u64 = undefined; var x190: u1 = undefined; subborrowxU64(&x189, &x190, 0x0, x181, 0xf3b9cac2fc632551); @@ -1450,7 +1449,7 @@ pub fn toMontgomery(out1: *MontgomeryDomainFieldElement, arg1: NonMontgomeryDoma subborrowxU64(&x195, &x196, x194, x187, 0xffffffff00000000); var x197: u64 = undefined; var x198: u1 = undefined; - subborrowxU64(&x197, &x198, x196, cast(u64, x188), cast(u64, 0x0)); + subborrowxU64(&x197, &x198, x196, @as(u64, x188), @as(u64, 0x0)); var x199: u64 = undefined; cmovznzU64(&x199, x198, x189, x181); var x200: u64 = undefined; @@ -1529,62 +1528,62 @@ pub fn toBytes(out1: *[32]u8, arg1: [4]u64) void { const x2 = (arg1[2]); const x3 = (arg1[1]); const x4 = (arg1[0]); - const x5 = cast(u8, (x4 & cast(u64, 0xff))); + const x5 = @truncate(u8, (x4 & @as(u64, 0xff))); const x6 = (x4 >> 8); - const x7 = cast(u8, (x6 & cast(u64, 0xff))); + const x7 = @truncate(u8, (x6 & @as(u64, 0xff))); const x8 = (x6 >> 8); - const x9 = cast(u8, (x8 & cast(u64, 0xff))); + const x9 = @truncate(u8, (x8 & @as(u64, 0xff))); const x10 = (x8 >> 8); - const x11 = cast(u8, (x10 & cast(u64, 0xff))); + const x11 = @truncate(u8, (x10 & @as(u64, 0xff))); const x12 = (x10 >> 8); - const x13 = cast(u8, (x12 & cast(u64, 0xff))); + const x13 = @truncate(u8, (x12 & @as(u64, 0xff))); const x14 = (x12 >> 8); - const x15 = cast(u8, (x14 & cast(u64, 0xff))); + const x15 = @truncate(u8, (x14 & @as(u64, 0xff))); const x16 = (x14 >> 8); - const x17 = cast(u8, (x16 & cast(u64, 0xff))); - const x18 = cast(u8, (x16 >> 8)); - const x19 = cast(u8, (x3 & cast(u64, 0xff))); + const x17 = @truncate(u8, (x16 & @as(u64, 0xff))); + const x18 = @truncate(u8, (x16 >> 8)); + const x19 = @truncate(u8, (x3 & @as(u64, 0xff))); const x20 = (x3 >> 8); - const x21 = cast(u8, (x20 & cast(u64, 0xff))); + const x21 = @truncate(u8, (x20 & @as(u64, 0xff))); const x22 = (x20 >> 8); - const x23 = cast(u8, (x22 & cast(u64, 0xff))); + const x23 = @truncate(u8, (x22 & @as(u64, 0xff))); const x24 = (x22 >> 8); - const x25 = cast(u8, (x24 & cast(u64, 0xff))); + const x25 = @truncate(u8, (x24 & @as(u64, 0xff))); const x26 = (x24 >> 8); - const x27 = cast(u8, (x26 & cast(u64, 0xff))); + const x27 = @truncate(u8, (x26 & @as(u64, 0xff))); const x28 = (x26 >> 8); - const x29 = cast(u8, (x28 & cast(u64, 0xff))); + const x29 = @truncate(u8, (x28 & @as(u64, 0xff))); const x30 = (x28 >> 8); - const x31 = cast(u8, (x30 & cast(u64, 0xff))); - const x32 = cast(u8, (x30 >> 8)); - const x33 = cast(u8, (x2 & cast(u64, 0xff))); + const x31 = @truncate(u8, (x30 & @as(u64, 0xff))); + const x32 = @truncate(u8, (x30 >> 8)); + const x33 = @truncate(u8, (x2 & @as(u64, 0xff))); const x34 = (x2 >> 8); - const x35 = cast(u8, (x34 & cast(u64, 0xff))); + const x35 = @truncate(u8, (x34 & @as(u64, 0xff))); const x36 = (x34 >> 8); - const x37 = cast(u8, (x36 & cast(u64, 0xff))); + const x37 = @truncate(u8, (x36 & @as(u64, 0xff))); const x38 = (x36 >> 8); - const x39 = cast(u8, (x38 & cast(u64, 0xff))); + const x39 = @truncate(u8, (x38 & @as(u64, 0xff))); const x40 = (x38 >> 8); - const x41 = cast(u8, (x40 & cast(u64, 0xff))); + const x41 = @truncate(u8, (x40 & @as(u64, 0xff))); const x42 = (x40 >> 8); - const x43 = cast(u8, (x42 & cast(u64, 0xff))); + const x43 = @truncate(u8, (x42 & @as(u64, 0xff))); const x44 = (x42 >> 8); - const x45 = cast(u8, (x44 & cast(u64, 0xff))); - const x46 = cast(u8, (x44 >> 8)); - const x47 = cast(u8, (x1 & cast(u64, 0xff))); + const x45 = @truncate(u8, (x44 & @as(u64, 0xff))); + const x46 = @truncate(u8, (x44 >> 8)); + const x47 = @truncate(u8, (x1 & @as(u64, 0xff))); const x48 = (x1 >> 8); - const x49 = cast(u8, (x48 & cast(u64, 0xff))); + const x49 = @truncate(u8, (x48 & @as(u64, 0xff))); const x50 = (x48 >> 8); - const x51 = cast(u8, (x50 & cast(u64, 0xff))); + const x51 = @truncate(u8, (x50 & @as(u64, 0xff))); const x52 = (x50 >> 8); - const x53 = cast(u8, (x52 & cast(u64, 0xff))); + const x53 = @truncate(u8, (x52 & @as(u64, 0xff))); const x54 = (x52 >> 8); - const x55 = cast(u8, (x54 & cast(u64, 0xff))); + const x55 = @truncate(u8, (x54 & @as(u64, 0xff))); const x56 = (x54 >> 8); - const x57 = cast(u8, (x56 & cast(u64, 0xff))); + const x57 = @truncate(u8, (x56 & @as(u64, 0xff))); const x58 = (x56 >> 8); - const x59 = cast(u8, (x58 & cast(u64, 0xff))); - const x60 = cast(u8, (x58 >> 8)); + const x59 = @truncate(u8, (x58 & @as(u64, 0xff))); + const x60 = @truncate(u8, (x58 >> 8)); out1[0] = x5; out1[1] = x7; out1[2] = x9; @@ -1634,60 +1633,60 @@ pub fn toBytes(out1: *[32]u8, arg1: [4]u64) void { pub fn fromBytes(out1: *[4]u64, arg1: [32]u8) void { @setRuntimeSafety(mode == .Debug); - const x1 = (cast(u64, (arg1[31])) << 56); - const x2 = (cast(u64, (arg1[30])) << 48); - const x3 = (cast(u64, (arg1[29])) << 40); - const x4 = (cast(u64, (arg1[28])) << 32); - const x5 = (cast(u64, (arg1[27])) << 24); - const x6 = (cast(u64, (arg1[26])) << 16); - const x7 = (cast(u64, (arg1[25])) << 8); + const x1 = (@as(u64, (arg1[31])) << 56); + const x2 = (@as(u64, (arg1[30])) << 48); + const x3 = (@as(u64, (arg1[29])) << 40); + const x4 = (@as(u64, (arg1[28])) << 32); + const x5 = (@as(u64, (arg1[27])) << 24); + const x6 = (@as(u64, (arg1[26])) << 16); + const x7 = (@as(u64, (arg1[25])) << 8); const x8 = (arg1[24]); - const x9 = (cast(u64, (arg1[23])) << 56); - const x10 = (cast(u64, (arg1[22])) << 48); - const x11 = (cast(u64, (arg1[21])) << 40); - const x12 = (cast(u64, (arg1[20])) << 32); - const x13 = (cast(u64, (arg1[19])) << 24); - const x14 = (cast(u64, (arg1[18])) << 16); - const x15 = (cast(u64, (arg1[17])) << 8); + const x9 = (@as(u64, (arg1[23])) << 56); + const x10 = (@as(u64, (arg1[22])) << 48); + const x11 = (@as(u64, (arg1[21])) << 40); + const x12 = (@as(u64, (arg1[20])) << 32); + const x13 = (@as(u64, (arg1[19])) << 24); + const x14 = (@as(u64, (arg1[18])) << 16); + const x15 = (@as(u64, (arg1[17])) << 8); const x16 = (arg1[16]); - const x17 = (cast(u64, (arg1[15])) << 56); - const x18 = (cast(u64, (arg1[14])) << 48); - const x19 = (cast(u64, (arg1[13])) << 40); - const x20 = (cast(u64, (arg1[12])) << 32); - const x21 = (cast(u64, (arg1[11])) << 24); - const x22 = (cast(u64, (arg1[10])) << 16); - const x23 = (cast(u64, (arg1[9])) << 8); + const x17 = (@as(u64, (arg1[15])) << 56); + const x18 = (@as(u64, (arg1[14])) << 48); + const x19 = (@as(u64, (arg1[13])) << 40); + const x20 = (@as(u64, (arg1[12])) << 32); + const x21 = (@as(u64, (arg1[11])) << 24); + const x22 = (@as(u64, (arg1[10])) << 16); + const x23 = (@as(u64, (arg1[9])) << 8); const x24 = (arg1[8]); - const x25 = (cast(u64, (arg1[7])) << 56); - const x26 = (cast(u64, (arg1[6])) << 48); - const x27 = (cast(u64, (arg1[5])) << 40); - const x28 = (cast(u64, (arg1[4])) << 32); - const x29 = (cast(u64, (arg1[3])) << 24); - const x30 = (cast(u64, (arg1[2])) << 16); - const x31 = (cast(u64, (arg1[1])) << 8); + const x25 = (@as(u64, (arg1[7])) << 56); + const x26 = (@as(u64, (arg1[6])) << 48); + const x27 = (@as(u64, (arg1[5])) << 40); + const x28 = (@as(u64, (arg1[4])) << 32); + const x29 = (@as(u64, (arg1[3])) << 24); + const x30 = (@as(u64, (arg1[2])) << 16); + const x31 = (@as(u64, (arg1[1])) << 8); const x32 = (arg1[0]); - const x33 = (x31 + cast(u64, x32)); + const x33 = (x31 + @as(u64, x32)); const x34 = (x30 + x33); const x35 = (x29 + x34); const x36 = (x28 + x35); const x37 = (x27 + x36); const x38 = (x26 + x37); const x39 = (x25 + x38); - const x40 = (x23 + cast(u64, x24)); + const x40 = (x23 + @as(u64, x24)); const x41 = (x22 + x40); const x42 = (x21 + x41); const x43 = (x20 + x42); const x44 = (x19 + x43); const x45 = (x18 + x44); const x46 = (x17 + x45); - const x47 = (x15 + cast(u64, x16)); + const x47 = (x15 + @as(u64, x16)); const x48 = (x14 + x47); const x49 = (x13 + x48); const x50 = (x12 + x49); const x51 = (x11 + x50); const x52 = (x10 + x51); const x53 = (x9 + x52); - const x54 = (x7 + cast(u64, x8)); + const x54 = (x7 + @as(u64, x8)); const x55 = (x6 + x54); const x56 = (x5 + x55); const x57 = (x4 + x56); @@ -1711,7 +1710,7 @@ pub fn setOne(out1: *MontgomeryDomainFieldElement) void { out1[0] = 0xc46353d039cdaaf; out1[1] = 0x4319055258e8617b; - out1[2] = cast(u64, 0x0); + out1[2] = @as(u64, 0x0); out1[3] = 0xffffffff; } @@ -1730,7 +1729,7 @@ pub fn msat(out1: *[5]u64) void { out1[1] = 0xbce6faada7179e84; out1[2] = 0xffffffffffffffff; out1[3] = 0xffffffff00000000; - out1[4] = cast(u64, 0x0); + out1[4] = @as(u64, 0x0); } /// The function divstep computes a divstep. @@ -1766,11 +1765,11 @@ pub fn divstep(out1: *u64, out2: *[5]u64, out3: *[5]u64, out4: *[4]u64, out5: *[ var x1: u64 = undefined; var x2: u1 = undefined; - addcarryxU64(&x1, &x2, 0x0, (~arg1), cast(u64, 0x1)); - const x3 = (cast(u1, (x1 >> 63)) & cast(u1, ((arg3[0]) & cast(u64, 0x1)))); + addcarryxU64(&x1, &x2, 0x0, (~arg1), @as(u64, 0x1)); + const x3 = (@as(u1, (x1 >> 63)) & @as(u1, ((arg3[0]) & @as(u64, 0x1)))); var x4: u64 = undefined; var x5: u1 = undefined; - addcarryxU64(&x4, &x5, 0x0, (~arg1), cast(u64, 0x1)); + addcarryxU64(&x4, &x5, 0x0, (~arg1), @as(u64, 0x1)); var x6: u64 = undefined; cmovznzU64(&x6, x3, arg1, x4); var x7: u64 = undefined; @@ -1785,19 +1784,19 @@ pub fn divstep(out1: *u64, out2: *[5]u64, out3: *[5]u64, out4: *[4]u64, out5: *[ cmovznzU64(&x11, x3, (arg2[4]), (arg3[4])); var x12: u64 = undefined; var x13: u1 = undefined; - addcarryxU64(&x12, &x13, 0x0, cast(u64, 0x1), (~(arg2[0]))); + addcarryxU64(&x12, &x13, 0x0, @as(u64, 0x1), (~(arg2[0]))); var x14: u64 = undefined; var x15: u1 = undefined; - addcarryxU64(&x14, &x15, x13, cast(u64, 0x0), (~(arg2[1]))); + addcarryxU64(&x14, &x15, x13, @as(u64, 0x0), (~(arg2[1]))); var x16: u64 = undefined; var x17: u1 = undefined; - addcarryxU64(&x16, &x17, x15, cast(u64, 0x0), (~(arg2[2]))); + addcarryxU64(&x16, &x17, x15, @as(u64, 0x0), (~(arg2[2]))); var x18: u64 = undefined; var x19: u1 = undefined; - addcarryxU64(&x18, &x19, x17, cast(u64, 0x0), (~(arg2[3]))); + addcarryxU64(&x18, &x19, x17, @as(u64, 0x0), (~(arg2[3]))); var x20: u64 = undefined; var x21: u1 = undefined; - addcarryxU64(&x20, &x21, x19, cast(u64, 0x0), (~(arg2[4]))); + addcarryxU64(&x20, &x21, x19, @as(u64, 0x0), (~(arg2[4]))); var x22: u64 = undefined; cmovznzU64(&x22, x3, (arg3[0]), x12); var x23: u64 = undefined; @@ -1842,25 +1841,25 @@ pub fn divstep(out1: *u64, out2: *[5]u64, out3: *[5]u64, out4: *[4]u64, out5: *[ subborrowxU64(&x45, &x46, x44, x37, 0xffffffff00000000); var x47: u64 = undefined; var x48: u1 = undefined; - subborrowxU64(&x47, &x48, x46, cast(u64, x38), cast(u64, 0x0)); + subborrowxU64(&x47, &x48, x46, @as(u64, x38), @as(u64, 0x0)); const x49 = (arg4[3]); const x50 = (arg4[2]); const x51 = (arg4[1]); const x52 = (arg4[0]); var x53: u64 = undefined; var x54: u1 = undefined; - subborrowxU64(&x53, &x54, 0x0, cast(u64, 0x0), x52); + subborrowxU64(&x53, &x54, 0x0, @as(u64, 0x0), x52); var x55: u64 = undefined; var x56: u1 = undefined; - subborrowxU64(&x55, &x56, x54, cast(u64, 0x0), x51); + subborrowxU64(&x55, &x56, x54, @as(u64, 0x0), x51); var x57: u64 = undefined; var x58: u1 = undefined; - subborrowxU64(&x57, &x58, x56, cast(u64, 0x0), x50); + subborrowxU64(&x57, &x58, x56, @as(u64, 0x0), x50); var x59: u64 = undefined; var x60: u1 = undefined; - subborrowxU64(&x59, &x60, x58, cast(u64, 0x0), x49); + subborrowxU64(&x59, &x60, x58, @as(u64, 0x0), x49); var x61: u64 = undefined; - cmovznzU64(&x61, x60, cast(u64, 0x0), 0xffffffffffffffff); + cmovznzU64(&x61, x60, @as(u64, 0x0), 0xffffffffffffffff); var x62: u64 = undefined; var x63: u1 = undefined; addcarryxU64(&x62, &x63, 0x0, x53, (x61 & 0xf3b9cac2fc632551)); @@ -1881,17 +1880,17 @@ pub fn divstep(out1: *u64, out2: *[5]u64, out3: *[5]u64, out4: *[4]u64, out5: *[ cmovznzU64(&x72, x3, (arg5[2]), x66); var x73: u64 = undefined; cmovznzU64(&x73, x3, (arg5[3]), x68); - const x74 = cast(u1, (x22 & cast(u64, 0x1))); + const x74 = @as(u1, (x22 & @as(u64, 0x1))); var x75: u64 = undefined; - cmovznzU64(&x75, x74, cast(u64, 0x0), x7); + cmovznzU64(&x75, x74, @as(u64, 0x0), x7); var x76: u64 = undefined; - cmovznzU64(&x76, x74, cast(u64, 0x0), x8); + cmovznzU64(&x76, x74, @as(u64, 0x0), x8); var x77: u64 = undefined; - cmovznzU64(&x77, x74, cast(u64, 0x0), x9); + cmovznzU64(&x77, x74, @as(u64, 0x0), x9); var x78: u64 = undefined; - cmovznzU64(&x78, x74, cast(u64, 0x0), x10); + cmovznzU64(&x78, x74, @as(u64, 0x0), x10); var x79: u64 = undefined; - cmovznzU64(&x79, x74, cast(u64, 0x0), x11); + cmovznzU64(&x79, x74, @as(u64, 0x0), x11); var x80: u64 = undefined; var x81: u1 = undefined; addcarryxU64(&x80, &x81, 0x0, x22, x75); @@ -1908,13 +1907,13 @@ pub fn divstep(out1: *u64, out2: *[5]u64, out3: *[5]u64, out4: *[4]u64, out5: *[ var x89: u1 = undefined; addcarryxU64(&x88, &x89, x87, x26, x79); var x90: u64 = undefined; - cmovznzU64(&x90, x74, cast(u64, 0x0), x27); + cmovznzU64(&x90, x74, @as(u64, 0x0), x27); var x91: u64 = undefined; - cmovznzU64(&x91, x74, cast(u64, 0x0), x28); + cmovznzU64(&x91, x74, @as(u64, 0x0), x28); var x92: u64 = undefined; - cmovznzU64(&x92, x74, cast(u64, 0x0), x29); + cmovznzU64(&x92, x74, @as(u64, 0x0), x29); var x93: u64 = undefined; - cmovznzU64(&x93, x74, cast(u64, 0x0), x30); + cmovznzU64(&x93, x74, @as(u64, 0x0), x30); var x94: u64 = undefined; var x95: u1 = undefined; addcarryxU64(&x94, &x95, 0x0, x70, x90); @@ -1941,10 +1940,10 @@ pub fn divstep(out1: *u64, out2: *[5]u64, out3: *[5]u64, out4: *[4]u64, out5: *[ subborrowxU64(&x108, &x109, x107, x100, 0xffffffff00000000); var x110: u64 = undefined; var x111: u1 = undefined; - subborrowxU64(&x110, &x111, x109, cast(u64, x101), cast(u64, 0x0)); + subborrowxU64(&x110, &x111, x109, @as(u64, x101), @as(u64, 0x0)); var x112: u64 = undefined; var x113: u1 = undefined; - addcarryxU64(&x112, &x113, 0x0, x6, cast(u64, 0x1)); + addcarryxU64(&x112, &x113, 0x0, x6, @as(u64, 0x1)); const x114 = ((x80 >> 1) | ((x82 << 63) & 0xffffffffffffffff)); const x115 = ((x82 >> 1) | ((x84 << 63) & 0xffffffffffffffff)); const x116 = ((x84 >> 1) | ((x86 << 63) & 0xffffffffffffffff));