From a896a22932ec658d028c032744411cf93e18ee48 Mon Sep 17 00:00:00 2001 From: Jacob Young Date: Sat, 27 Sep 2025 20:10:03 -0400 Subject: [PATCH] x86_64: fix `@mulAdd` miscomp --- src/codegen/x86_64/CodeGen.zig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/codegen/x86_64/CodeGen.zig b/src/codegen/x86_64/CodeGen.zig index 190e76b177..cf6f91e0c6 100644 --- a/src/codegen/x86_64/CodeGen.zig +++ b/src/codegen/x86_64/CodeGen.zig @@ -169138,7 +169138,7 @@ fn genBody(cg: *CodeGen, body: []const Air.Inst.Index) InnerError!void { .dst_temps = .{ .mem, .unused }, .clobbers = .{ .eflags = true, .caller_preserved = .ccc }, .each = .{ .once = &.{ - .{ ._, ._, .mov, .tmp0d, .sia(-16, .src0, .sub_unaligned_size), ._, ._ }, + .{ ._, ._, .mov, .tmp0d, .sia(-16, .src0, .add_unaligned_size), ._, ._ }, .{ .@"0:", ._ps, .mova, .tmp1x, .memi(.src0x, .tmp0), ._, ._ }, .{ ._, ._ps, .mova, .tmp2x, .memi(.src1x, .tmp0), ._, ._ }, .{ ._, ._ps, .mova, .tmp3x, .memi(.src2x, .tmp0), ._, ._ },