From d00aee021befe7555a30854e777358eb98ce549a Mon Sep 17 00:00:00 2001
From: Andrew Kelley <andrew@ziglang.org>
Date: Wed, 3 Sep 2025 18:22:14 -0700
Subject: [PATCH] x86 codegen: handle spilled tuples

---
 src/arch/x86_64/CodeGen.zig | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/arch/x86_64/CodeGen.zig b/src/arch/x86_64/CodeGen.zig
index 3222aea55e..f92ceaffb3 100644
--- a/src/arch/x86_64/CodeGen.zig
+++ b/src/arch/x86_64/CodeGen.zig
@@ -187021,6 +187021,10 @@ const Temp = struct {
                     assert(src_regs.len - part_index == std.math.divCeil(u32, src_abi_size, 8) catch unreachable);
                     break :part_ty .u64;
                 },
+                .tuple_type => |tuple_type| {
+                    assert(tuple_type.types.len == src_regs.len);
+                    break :part_ty .fromInterned(tuple_type.types.get(ip)[part_index]);
+                },
             };
             const part_size: u31 = @intCast(part_ty.abiSize(zcu));
             const src_rc = src_reg.class();