[clang] [Driver][MachineOutliner] Support -moutline option for aarch64_be (PR #73223)

[via cfe-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-clang-driver

Author: dong jianqiang (dongjianqiang2)

<details>
<summary>Changes</summary>

This patch propagates the -moutline flag when target is aarch64_be, 
fix warning: 'aarch64_be' does not support '-moutline'; flag ignored [-Woption-ignored]

---
Full diff: https://github.com/llvm/llvm-project/pull/73223.diff


2 Files Affected:

- (modified) clang/lib/Driver/ToolChains/CommonArgs.cpp (+2-1) 
- (modified) clang/test/Driver/aarch64-outliner.c (+2) 


``````````diff
diff --git a/clang/lib/Driver/ToolChains/CommonArgs.cpp b/clang/lib/Driver/ToolChains/CommonArgs.cpp
index 5d2cd1959b06925..078f2ff80a21939 100644
--- a/clang/lib/Driver/ToolChains/CommonArgs.cpp
+++ b/clang/lib/Driver/ToolChains/CommonArgs.cpp
@@ -2436,7 +2436,8 @@ void tools::addMachineOutlinerArgs(const Driver &D,
       // Otherwise, add the proper mllvm flags.
       if (!(Triple.isARM() || Triple.isThumb() ||
             Triple.getArch() == llvm::Triple::aarch64 ||
-            Triple.getArch() == llvm::Triple::aarch64_32)) {
+            Triple.getArch() == llvm::Triple::aarch64_32 ||
+            Triple.getArch() == llvm::Triple::aarch64_be)) {
         D.Diag(diag::warn_drv_moutline_unsupported_opt) << Triple.getArchName();
       } else {
         addArg(Twine("-enable-machine-outliner"));
diff --git a/clang/test/Driver/aarch64-outliner.c b/clang/test/Driver/aarch64-outliner.c
index 42e43b433e282d3..06e5de11ec49ecd 100644
--- a/clang/test/Driver/aarch64-outliner.c
+++ b/clang/test/Driver/aarch64-outliner.c
@@ -1,7 +1,9 @@
 // REQUIRES: aarch64-registered-target
 // RUN: %clang --target=aarch64 -moutline -S %s -### 2>&1 | FileCheck %s -check-prefix=ON
+// RUN: %clang --target=aarch64_be -moutline -S %s -### 2>&1 | FileCheck %s -check-prefix=ON
 // ON: "-mllvm" "-enable-machine-outliner"
 // RUN: %clang --target=aarch64 -moutline -mno-outline -S %s -### 2>&1 | FileCheck %s -check-prefix=OFF
+// RUN: %clang --target=aarch64_be -moutline -mno-outline -S %s -### 2>&1 | FileCheck %s -check-prefix=OFF
 // OFF: "-mllvm" "-enable-machine-outliner=never"
 // RUN: %clang --target=x86_64 -moutline -S %s -### 2>&1 | FileCheck %s -check-prefix=WARN
 // WARN: warning: 'x86_64' does not support '-moutline'; flag ignored [-Woption-ignored]

``````````

</details>


https://github.com/llvm/llvm-project/pull/73223