[compiler-rt] e0c4454 - [Darwin][ASan][Sanitizer] Fixes Sanitizer NonUnique Identifier to Account for Mac arm64 architectures.

[Blue Gaston via llvm-commits]

Author: Blue Gaston
Date: 2022-04-13T21:11:37-07:00
New Revision: e0c44544655d0f799831004962b1f22fece31c5e

URL: https://github.com/llvm/llvm-project/commit/e0c44544655d0f799831004962b1f22fece31c5e
DIFF: https://github.com/llvm/llvm-project/commit/e0c44544655d0f799831004962b1f22fece31c5e.diff

LOG: [Darwin][ASan][Sanitizer] Fixes Sanitizer NonUnique Identifier to Account for Mac arm64 architectures.

    Current check assumes iOS as the only Apple devices running arm64.
    ```#if SANITIZER_MAC && !(defined(__arm64__) && SANITIZER_IOS)```
    Stops Apple Silicon from being flagged as requiring unique RTTI.
    This introduced unexpected behavior within the sanitizer.

    rdar://91446703

Differential Revision: https://reviews.llvm.org/D123736

Added: 
    

Modified: 
    compiler-rt/lib/sanitizer_common/sanitizer_platform.h

Removed: 
    


################################################################################
diff  --git a/compiler-rt/lib/sanitizer_common/sanitizer_platform.h b/compiler-rt/lib/sanitizer_common/sanitizer_platform.h
index 8ff9f977bf589..e22cc6a0330ff 100644
--- a/compiler-rt/lib/sanitizer_common/sanitizer_platform.h
+++ b/compiler-rt/lib/sanitizer_common/sanitizer_platform.h
@@ -340,7 +340,7 @@
 #  define MSC_PREREQ(version) 0
 #endif
 
-#if SANITIZER_MAC && !(defined(__arm64__) && SANITIZER_IOS)
+#if SANITIZER_MAC && defined (__x86_64__)
 #  define SANITIZER_NON_UNIQUE_TYPEINFO 0
 #else
 #  define SANITIZER_NON_UNIQUE_TYPEINFO 1