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compiler-rt: Add __extendsfdf2

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Add AEABI builtin __aeabi_f2d
This commit is contained in:
LemonBoy 2019-05-08 23:54:43 +02:00
parent 2be066d057
commit 2dce137d92
2 changed files with 13 additions and 4 deletions
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3
std/special/compiler_rt.zig
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@ -92,6 +92,8 @@ comptime {
@export("__truncdfsf2", @import("compiler_rt/truncXfYf2.zig").__truncdfsf2, linkage);
@export("__extendsfdf2", @import("compiler_rt/extendXfYf2.zig").__extendsfdf2, linkage);
@export("__fixunssfsi", @import("compiler_rt/fixunssfsi.zig").__fixunssfsi, linkage);
@export("__fixunssfdi", @import("compiler_rt/fixunssfdi.zig").__fixunssfdi, linkage);
@export("__fixunssfti", @import("compiler_rt/fixunssfti.zig").__fixunssfti, linkage);
@ -161,6 +163,7 @@ comptime {
@export("__aeabi_memcmp4", __aeabi_memcmp, linkage);
@export("__aeabi_memcmp8", __aeabi_memcmp, linkage);
@export("__aeabi_f2d", @import("compiler_rt/extendXfYf2.zig").__extendsfdf2, linkage);
@export("__aeabi_i2d", @import("compiler_rt/floatsiXf.zig").__floatsidf, linkage);
@export("__aeabi_l2d", @import("compiler_rt/floatdidf.zig").__floatdidf, linkage);
@export("__aeabi_ui2d", @import("compiler_rt/floatunsidf.zig").__floatunsidf, linkage);

14
std/special/compiler_rt/extendXfYf2.zig
View File

@ -2,21 +2,27 @@ const std = @import("std");
const builtin = @import("builtin");
const is_test = builtin.is_test;
pub extern fn __extendsfdf2(a: f32) f64 {
return @inlineCall(extendXfYf2, f64, f32, @bitCast(u32, a));
}
pub extern fn __extenddftf2(a: f64) f128 {
return extendXfYf2(f128, f64, @bitCast(u64, a));
return @inlineCall(extendXfYf2, f128, f64, @bitCast(u64, a));
}
pub extern fn __extendsftf2(a: f32) f128 {
return extendXfYf2(f128, f32, @bitCast(u32, a));
return @inlineCall(extendXfYf2, f128, f32, @bitCast(u32, a));
}
pub extern fn __extendhfsf2(a: u16) f32 {
return extendXfYf2(f32, f16, a);
return @inlineCall(extendXfYf2, f32, f16, a);
}
const CHAR_BIT = 8;
inline fn extendXfYf2(comptime dst_t: type, comptime src_t: type, a: @IntType(false, @typeInfo(src_t).Float.bits)) dst_t {
fn extendXfYf2(comptime dst_t: type, comptime src_t: type, a: @IntType(false, @typeInfo(src_t).Float.bits)) dst_t {
@setRuntimeSafety(builtin.is_test);
const src_rep_t = @IntType(false, @typeInfo(src_t).Float.bits);
const dst_rep_t = @IntType(false, @typeInfo(dst_t).Float.bits);
const srcSigBits = std.math.floatMantissaBits(src_t);