fix armv6kz LDREX definition

[Un1q32]

Fixes #37901

This behavior is consistent with GCC

[llvmbot]

@llvm/pr-subscribers-clang

@llvm/pr-subscribers-backend-arm

Author: None (Un1q32)

Changes

Fixes #37901

This behavior is consistent with GCC

---

Full diff: https://github.com/llvm/llvm-project/pull/122965.diff

1 Files Affected:

• (modified) clang/lib/Basic/Targets/ARM.cpp (+2-1)

diff --git a/clang/lib/Basic/Targets/ARM.cpp b/clang/lib/Basic/Targets/ARM.cpp
index 61ee26d8863832..0fd5433a76402e 100644
--- a/clang/lib/Basic/Targets/ARM.cpp
+++ b/clang/lib/Basic/Targets/ARM.cpp
@@ -617,7 +617,8 @@ bool ARMTargetInfo::handleTargetFeatures(std::vector<std::string> &Features,
   case 6:
     if (ArchProfile == llvm::ARM::ProfileKind::M)
       LDREX = 0;
-    else if (ArchKind == llvm::ARM::ArchKind::ARMV6K)
+    else if (ArchKind == llvm::ARM::ArchKind::ARMV6K ||
+             ArchKind == llvm::ARM::ArchKind::ARMV6KZ)
       LDREX = LDREX_D | LDREX_W | LDREX_H | LDREX_B;
     else
       LDREX = LDREX_W;

[efriedma-quic]

Please add a corresponding CHECK line to clang/test/Preprocessor/arm-acle-6.4.c

[davemgreen]

Can you add a test?

[Un1q32]

Can you add a test?

Is the CHECK line enough or do you want something more? My understanding is that the CHECK lines are tests, but I'm not sure since this was sent after the request for the CHECK line.

[efriedma-quic]

LGTM

Yes, the CHECK is enough.

[davemgreen]

Thanks LGTM. Let us know if we should squash and merge (I never know who has access).

[Un1q32]

Yeah I don't have access, please merge thank you