From 09e4035e79caea3174bb3f60ba005fe5838d82e5 Mon Sep 17 00:00:00 2001
From: David Rubin <david@vortan.dev>
Date: Thu, 6 Nov 2025 20:12:35 -0800
Subject: [PATCH] llvm: clobber `rdx` instead of `edx` for x86-64 valgrind
 request

---
 src/codegen/llvm.zig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/codegen/llvm.zig b/src/codegen/llvm.zig
index 6b891c1ab5..2711deba5c 100644
--- a/src/codegen/llvm.zig
+++ b/src/codegen/llvm.zig
@@ -11735,7 +11735,7 @@ pub const FuncGen = struct {
                 \\ rolq  $$61, %rdi ; rolq $$51, %rdi
                 \\ xchgq %rbx, %rbx
                 ,
-                .constraints = "={rdx},{rax},{edx},~{cc},~{memory}",
+                .constraints = "={rdx},{rax},{rdx},~{cc},~{memory}",
             },
             else => unreachable,
         };