Commit 80df8da82f

Jacob Young <jacobly0@users.noreply.github.com>
2023-05-16 05:58:17
x86_64: initialize array sentinels
master
1 parent 729daed
Changed files (2)
src
arch
x86_64
CodeGen.zig
test
behavior
eval.zig
src/arch/x86_64/CodeGen.zig
@@ -11162,6 +11162,12 @@ fn airAggregateInit(self: *Self, inst: Air.Inst.Index) !void {
                     const elem_off = @intCast(i32, elem_size * elem_i);
                     try self.genSetMem(.{ .frame = frame_index }, elem_off, elem_ty, mat_elem_mcv);
                 }
+                if (result_ty.sentinel()) |sentinel| try self.genSetMem(
+                    .{ .frame = frame_index },
+                    @intCast(i32, elem_size * elements.len),
+                    elem_ty,
+                    try self.genTypedValue(.{ .ty = elem_ty, .val = sentinel }),
+                );
                 break :result .{ .load_frame = .{ .index = frame_index } };
             },
             .Vector => return self.fail("TODO implement aggregate_init for vectors", .{}),
test/behavior/eval.zig
@@ -816,7 +816,6 @@ test "array concatenation peer resolves element types - pointer" {
 
 test "array concatenation sets the sentinel - value" {
     if (builtin.zig_backend == .stage2_wasm) return error.SkipZigTest;
-    if (builtin.zig_backend == .stage2_x86_64) return error.SkipZigTest;
     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
@@ -855,7 +854,6 @@ test "array concatenation sets the sentinel - pointer" {
 
 test "array multiplication sets the sentinel - value" {
     if (builtin.zig_backend == .stage2_wasm) return error.SkipZigTest;
-    if (builtin.zig_backend == .stage2_x86_64) return error.SkipZigTest;
     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