riscv: add airAggregateInit for arrays

src/arch/riscv64/CodeGen.zig

@@ -3207,10 +3207,6 @@ fn airPtrElemPtr(self: *Self, inst: Air.Inst.Index) !void {
         const offset_reg_lock = self.register_manager.lockRegAssumeUnused(offset_reg);
         defer self.register_manager.unlockReg(offset_reg_lock);
 
-        if (true) return self.fail("TODO: airPtrElemPtr", .{});
-
-        // TODO: something is breaking here dunno
-
         break :result try self.binOp(.ptr_add, base_ptr_mcv, base_ptr_ty, .{ .register = offset_reg }, base_ptr_ty);
     };
     return self.finishAir(inst, result, .{ extra.lhs, extra.rhs, .none });
@@ -5864,6 +5860,29 @@ fn airAggregateInit(self: *Self, inst: Air.Inst.Index) !void {
                 }
                 break :result .{ .load_frame = .{ .index = frame_index } };
             },
+            .Array => {
+                const elem_ty = result_ty.childType(zcu);
+                const frame_index = try self.allocFrameIndex(FrameAlloc.initSpill(result_ty, zcu));
+                const elem_size: u32 = @intCast(elem_ty.abiSize(zcu));
+
+                for (elements, 0..) |elem, elem_i| {
+                    const elem_mcv = try self.resolveInst(elem);
+                    const elem_off: i32 = @intCast(elem_size * elem_i);
+                    try self.genSetMem(
+                        .{ .frame = frame_index },
+                        elem_off,
+                        elem_ty,
+                        elem_mcv,
+                    );
+                }
+                if (result_ty.sentinel(zcu)) |sentinel| try self.genSetMem(
+                    .{ .frame = frame_index },
+                    @intCast(elem_size * elements.len),
+                    elem_ty,
+                    try self.genTypedValue(sentinel),
+                );
+                break :result .{ .load_frame = .{ .index = frame_index } };
+            },
             else => return self.fail("TODO: airAggregate {}", .{result_ty.fmt(zcu)}),
         }
     };

test/behavior/align.zig

@@ -237,7 +237,6 @@ fn addUnalignedSlice(a: []align(1) const u32, b: []align(1) const u32) u32 {
 }
 
 test "specifying alignment allows pointer cast" {
-    if (builtin.zig_backend == .stage2_riscv64) return error.SkipZigTest; // TODO
     if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest;
     if (builtin.zig_backend == .stage2_sparc64) return error.SkipZigTest; // TODO
 

test/behavior/array.zig

@@ -346,7 +346,6 @@ test "read/write through global variable array of struct fields initialized via
 test "implicit cast single-item pointer" {
     if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest;
     if (builtin.zig_backend == .stage2_sparc64) return error.SkipZigTest; // TODO
-    if (builtin.zig_backend == .stage2_riscv64) return error.SkipZigTest;
 
     try testImplicitCastSingleItemPtr();
     try comptime testImplicitCastSingleItemPtr();
@@ -714,7 +713,6 @@ test "array of array agregate init" {
     if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest; // TODO
     if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest; // TODO
     if (builtin.zig_backend == .stage2_sparc64) return error.SkipZigTest; // TODO
-    if (builtin.zig_backend == .stage2_riscv64) return error.SkipZigTest;
 
     var a = [1]u32{11} ** 10;
     var b = [1][10]u32{a} ** 2;
@@ -765,7 +763,6 @@ test "slicing array of zero-sized values" {
     if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest;
     if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest;
     if (builtin.zig_backend == .stage2_sparc64) return error.SkipZigTest;
-    if (builtin.zig_backend == .stage2_riscv64) return error.SkipZigTest;
     if (builtin.zig_backend == .stage2_spirv64) return error.SkipZigTest;
 
     var arr: [32]u0 = undefined;

test/behavior/basic.zig

@@ -688,7 +688,6 @@ test "string concatenation" {
     if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest;
     if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest;
     if (builtin.zig_backend == .stage2_sparc64) return error.SkipZigTest; // TODO
-    if (builtin.zig_backend == .stage2_riscv64) return error.SkipZigTest;
 
     const a = "OK" ++ " IT " ++ "WORKED";
     const b = "OK IT WORKED";
@@ -728,7 +727,6 @@ fn maybe(x: bool) anyerror!?u32 {
 test "auto created variables have correct alignment" {
     if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest; // TODO
     if (builtin.zig_backend == .stage2_sparc64) return error.SkipZigTest; // TODO
-    if (builtin.zig_backend == .stage2_riscv64) return error.SkipZigTest;
 
     const S = struct {
         fn foo(str: [*]const u8) u32 {
@@ -893,7 +891,6 @@ test "weird array and tuple initializations" {
     if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest; // TODO
     if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest; // TODO
     if (builtin.zig_backend == .stage2_sparc64) return error.SkipZigTest; // TODO
-    if (builtin.zig_backend == .stage2_riscv64) return error.SkipZigTest;
 
     const E = enum { a, b };
     const S = struct { e: E };
@@ -1012,7 +1009,6 @@ comptime {
 
 test "switch inside @as gets correct type" {
     if (builtin.zig_backend == .stage2_sparc64) return error.SkipZigTest; // TODO
-    if (builtin.zig_backend == .stage2_riscv64) return error.SkipZigTest;
 
     var a: u32 = 0;
     _ = &a;
@@ -1379,8 +1375,6 @@ test "allocation and looping over 3-byte integer" {
 }
 
 test "loading array from struct is not optimized away" {
-    if (builtin.zig_backend == .stage2_riscv64) return error.SkipZigTest;
-
     const S = struct {
         arr: [1]u32 = .{0},
         fn doTheTest(self: *@This()) !void {

test/behavior/eval.zig

@@ -547,7 +547,6 @@ test "static eval list init" {
     if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest; // TODO
     if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest; // TODO
     if (builtin.zig_backend == .stage2_sparc64) return error.SkipZigTest; // TODO
-    if (builtin.zig_backend == .stage2_riscv64) return error.SkipZigTest;
 
     try expect(static_vec3.data[2] == 1.0);
     try expect(vec3(0.0, 0.0, 3.0).data[2] == 3.0);

test/behavior/fn.zig

@@ -493,7 +493,6 @@ test "using @ptrCast on function pointers" {
     if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest; // TODO
     if (builtin.zig_backend == .stage2_sparc64) return error.SkipZigTest; // TODO
     if (builtin.zig_backend == .stage2_spirv64) return error.SkipZigTest;
-    if (builtin.zig_backend == .stage2_riscv64) return error.SkipZigTest;
 
     const S = struct {
         const A = struct { data: [4]u8 };

test/behavior/for.zig

@@ -69,7 +69,6 @@ test "basic for loop" {
     if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest;
     if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest;
     if (builtin.zig_backend == .stage2_sparc64) return error.SkipZigTest; // TODO
-    if (builtin.zig_backend == .stage2_riscv64) return error.SkipZigTest;
 
     const expected_result = [_]u8{ 9, 8, 7, 6, 0, 1, 2, 3 } ** 3;
 
@@ -134,7 +133,6 @@ test "for with null and T peer types and inferred result location type" {
 test "2 break statements and an else" {
     if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest;
     if (builtin.zig_backend == .stage2_sparc64) return error.SkipZigTest; // TODO
-    if (builtin.zig_backend == .stage2_riscv64) return error.SkipZigTest;
 
     const S = struct {
         fn entry(t: bool, f: bool) !void {
@@ -183,7 +181,6 @@ fn mangleString(s: []u8) void {
 test "for copies its payload" {
     if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest; // TODO
     if (builtin.zig_backend == .stage2_sparc64) return error.SkipZigTest; // TODO
-    if (builtin.zig_backend == .stage2_riscv64) return error.SkipZigTest;
 
     const S = struct {
         fn doTheTest() !void {
@@ -283,7 +280,6 @@ test "two counters" {
 test "1-based counter and ptr to array" {
     if (builtin.zig_backend == .stage2_sparc64) return error.SkipZigTest; // TODO
     if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest; // TODO
-    if (builtin.zig_backend == .stage2_riscv64) return error.SkipZigTest;
 
     var ok: usize = 0;
 
@@ -367,7 +363,6 @@ test "raw pointer and slice" {
     if (builtin.zig_backend == .stage2_sparc64) return error.SkipZigTest; // TODO
     if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest; // TODO
     if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest; // TODO
-    if (builtin.zig_backend == .stage2_riscv64) return error.SkipZigTest;
 
     var buf: [10]u8 = undefined;
     const slice: []const u8 = "blah";
@@ -387,7 +382,6 @@ test "raw pointer and counter" {
     if (builtin.zig_backend == .stage2_sparc64) return error.SkipZigTest; // TODO
     if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest; // TODO
     if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest; // TODO
-    if (builtin.zig_backend == .stage2_riscv64) return error.SkipZigTest;
 
     var buf: [10]u8 = undefined;
     const ptr: [*]u8 = &buf;

test/behavior/lower_strlit_to_vector.zig

@@ -6,7 +6,6 @@ test "strlit to vector" {
     if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest; // TODO
     if (builtin.zig_backend == .stage2_sparc64) return error.SkipZigTest; // TODO
     if (builtin.zig_backend == .stage2_wasm) return error.SkipZigTest; // TODO
-    if (builtin.zig_backend == .stage2_riscv64) return error.SkipZigTest;
 
     const strlit = "0123456789abcdef0123456789ABCDEF";
     const vec_from_strlit: @Vector(32, u8) = strlit.*;

test/behavior/pointers.zig

@@ -541,7 +541,6 @@ test "pointer alignment and element type include call expression" {
 
 test "pointer to array has explicit alignment" {
     if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest; // TODO
-    if (builtin.zig_backend == .stage2_riscv64) return error.SkipZigTest;
 
     const S = struct {
         const Base = extern struct { a: u8 };

test/behavior/prefetch.zig

@@ -3,7 +3,6 @@ const std = @import("std");
 
 test "@prefetch()" {
     if (builtin.zig_backend == .stage2_spirv64) return error.SkipZigTest;
-    if (builtin.zig_backend == .stage2_riscv64) return error.SkipZigTest;
 
     var a: [2]u32 = .{ 42, 42 };
     var a_len = a.len;

test/behavior/sizeof_and_typeof.zig

@@ -272,7 +272,6 @@ test "runtime instructions inside typeof in comptime only scope" {
     if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest;
     if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest;
     if (builtin.zig_backend == .stage2_sparc64) return error.SkipZigTest; // TODO
-    if (builtin.zig_backend == .stage2_riscv64) return error.SkipZigTest;
 
     {
         var y: i8 = 2;

test/behavior/slice.zig

@@ -185,8 +185,6 @@ test "slicing zero length array" {
 }
 
 test "slicing pointer by length" {
-    if (builtin.zig_backend == .stage2_riscv64) return error.SkipZigTest;
-
     const array = [_]u8{ 1, 2, 3, 4, 5, 6, 7, 8 };
     const ptr: [*]const u8 = @as([*]const u8, @ptrCast(&array));
     const slice = ptr[1..][0..5];
@@ -306,7 +304,6 @@ test "slice type with custom alignment" {
 
 test "obtaining a null terminated slice" {
     if (builtin.zig_backend == .stage2_sparc64) return error.SkipZigTest; // TODO
-    if (builtin.zig_backend == .stage2_riscv64) return error.SkipZigTest;
 
     // here we have a normal array
     var buf: [50]u8 = undefined;
@@ -772,7 +769,6 @@ test "slice sentinel access at comptime" {
 test "slicing array with sentinel as end index" {
     if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest;
     if (builtin.zig_backend == .stage2_sparc64) return error.SkipZigTest; // TODO
-    if (builtin.zig_backend == .stage2_riscv64) return error.SkipZigTest;
 
     const S = struct {
         fn do() !void {

test/behavior/struct.zig

@@ -348,7 +348,6 @@ test "self-referencing struct via array member" {
     if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest;
     if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest; // TODO
     if (builtin.zig_backend == .stage2_sparc64) return error.SkipZigTest; // TODO
-    if (builtin.zig_backend == .stage2_riscv64) return error.SkipZigTest;
 
     const T = struct {
         children: [1]*@This(),