From 1bf6ac81189a097d5ad6fb3f736c17df149b8bde Mon Sep 17 00:00:00 2001
From: Eric Miotto <emiotto@apple.com>
Date: Thu, 1 May 2025 15:48:12 -0700
Subject: [PATCH] compiler-rt: use the current host architecture for the
 runtime targets

This will ensure all the test executables generated by `check-*` targets
can run on the current machine.

Addresses rdar://150469492
---
 utils/swift_build_support/swift_build_support/products/llvm.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/utils/swift_build_support/swift_build_support/products/llvm.py b/utils/swift_build_support/swift_build_support/products/llvm.py
index 6fc15415e40f5..92721fb45c797 100644
--- a/utils/swift_build_support/swift_build_support/products/llvm.py
+++ b/utils/swift_build_support/swift_build_support/products/llvm.py
@@ -313,7 +313,7 @@ def build(self, host_target):
             llvm_cmake_options.define(
                 'SANITIZER_COMMON_LINK_FLAGS:STRING', '-Wl,-z,undefs')
 
-        builtins_runtimes_target_for_darwin = 'arm64-apple-darwin'
+        builtins_runtimes_target_for_darwin = f'{arch}-apple-darwin'
         if system() == "Darwin":
             llvm_cmake_options.define(
                 f'BUILTINS_{builtins_runtimes_target_for_darwin}_'