https://github.com/llvmbot created
https://github.com/llvm/llvm-project/pull/155759
Backport 5d774ec8d183cbbb243c57f50d891822211d3ec2
Requested by: @brad0
>From a323fbc4cde128af9f7e3c44e5a470b7214926f2 Mon Sep 17 00:00:00 2001
From: Brad Smith <b...@comstyle.com>
Date: Thu, 28 Aug 2025 02:02:25 -0400
Subject: [PATCH] [Driver] Enable outline atomics for OpenBSD/aarch64 (#155713)
(cherry picked from commit 5d774ec8d183cbbb243c57f50d891822211d3ec2)
---
clang/lib/Driver/ToolChains/OpenBSD.h | 5 +++++
clang/test/Driver/aarch64-features.c | 2 +-
2 files changed, 6 insertions(+), 1 deletion(-)
diff --git a/clang/lib/Driver/ToolChains/OpenBSD.h
b/clang/lib/Driver/ToolChains/OpenBSD.h
index 11b873cb30032..ad0f9e6799568 100644
--- a/clang/lib/Driver/ToolChains/OpenBSD.h
+++ b/clang/lib/Driver/ToolChains/OpenBSD.h
@@ -79,6 +79,11 @@ class LLVM_LIBRARY_VISIBILITY OpenBSD : public Generic_ELF {
void AddCXXStdlibLibArgs(const llvm::opt::ArgList &Args,
llvm::opt::ArgStringList &CmdArgs) const override;
+ bool IsAArch64OutlineAtomicsDefault(
+ const llvm::opt::ArgList &Args) const override {
+ return true;
+ }
+
std::string getCompilerRT(const llvm::opt::ArgList &Args, StringRef
Component,
FileType Type = ToolChain::FT_Static,
bool IsFortran = false) const override;
diff --git a/clang/test/Driver/aarch64-features.c
b/clang/test/Driver/aarch64-features.c
index d2075c91314a8..05dd3bf39fae3 100644
--- a/clang/test/Driver/aarch64-features.c
+++ b/clang/test/Driver/aarch64-features.c
@@ -45,7 +45,7 @@
// RUN: -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-OUTLINE-ATOMICS-OFF %s
// RUN: %clang --target=aarch64-unknown-openbsd -rtlib=compiler-rt \
-// RUN: -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-OUTLINE-ATOMICS-OFF %s
+// RUN: -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-OUTLINE-ATOMICS-ON %s
// RUN: %clang --target=aarch64-linux-gnu -rtlib=libgcc \
// RUN: --gcc-toolchain=%S/Inputs/aarch64-linux-gnu-tree/gcc-10 \
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