[ObjC] Also enable ARC attachedcall operand bundle for arm64_32.

[citymarina]

It was enabled for "aarch64", which covers arm64e but not arm64_32.

[llvmbot]

@llvm/pr-subscribers-clang-codegen

@llvm/pr-subscribers-clang

Author: Marina Taylor (citymarina)

Changes

It was enabled for "aarch64", which covers arm64e but not arm64_32.

---

Full diff: https://github.com/llvm/llvm-project/pull/138677.diff

2 Files Affected:

• (modified) clang/lib/CodeGen/CGObjC.cpp (+2-1)
• (modified) clang/test/CodeGenObjCXX/arc-rv-attr.mm (+2)

diff --git a/clang/lib/CodeGen/CGObjC.cpp b/clang/lib/CodeGen/CGObjC.cpp
index 27c7c2fa9cba1..73071bc60901b 100644
--- a/clang/lib/CodeGen/CGObjC.cpp
+++ b/clang/lib/CodeGen/CGObjC.cpp
@@ -2386,7 +2386,8 @@ static llvm::Value *emitOptimizedARCReturnCall(llvm::Value *value,
   // FIXME: Do this on all targets and at -O0 too. This can be enabled only if
   // the target backend knows how to handle the operand bundle.
   if (CGF.CGM.getCodeGenOpts().OptimizationLevel > 0 &&
-      (Arch == llvm::Triple::aarch64 || Arch == llvm::Triple::x86_64)) {
+      (Arch == llvm::Triple::aarch64 || Arch == llvm::Triple::aarch64_32 ||
+       Arch == llvm::Triple::x86_64)) {
     llvm::Value *bundleArgs[] = {EP};
     llvm::OperandBundleDef OB("clang.arc.attachedcall", bundleArgs);
     auto *oldCall = cast<llvm::CallBase>(value);
diff --git a/clang/test/CodeGenObjCXX/arc-rv-attr.mm b/clang/test/CodeGenObjCXX/arc-rv-attr.mm
index c6a2ffb06bf34..9ddacbf0762d7 100644
--- a/clang/test/CodeGenObjCXX/arc-rv-attr.mm
+++ b/clang/test/CodeGenObjCXX/arc-rv-attr.mm
@@ -1,4 +1,6 @@
 // RUN: %clang_cc1 -triple arm64-apple-ios9 -fobjc-runtime=ios-9.0 -fobjc-arc -std=c++11 -O -disable-llvm-passes -emit-llvm -o - %s | FileCheck %s -check-prefix=CHECK
+// RUN: %clang_cc1 -triple arm64e-apple-ios15 -fobjc-runtime=ios-9.0 -fobjc-arc -std=c++11 -O -disable-llvm-passes -emit-llvm -o - %s | FileCheck %s -check-prefix=CHECK
+// RUN: %clang_cc1 -triple arm64_32-apple-watchos7 -fobjc-runtime=watchos-7.0 -fobjc-arc -std=c++11 -O -disable-llvm-passes -emit-llvm -o - %s | FileCheck %s -check-prefix=CHECK
 
 id foo(void);