[llvm] a53e568 - [AIX] Set memrchr to unavailable (#92588)

[via llvm-commits]

Author: Qiongsi Wu
Date: 2024-05-21T09:45:01-04:00
New Revision: a53e568b16db60eaeb4886232841c2a884f484fc

URL: https://github.com/llvm/llvm-project/commit/a53e568b16db60eaeb4886232841c2a884f484fc
DIFF: https://github.com/llvm/llvm-project/commit/a53e568b16db60eaeb4886232841c2a884f484fc.diff

LOG: [AIX] Set memrchr to unavailable (#92588)

`memrchr` is not available on AIX. This patch turns it off so the
optimizer will not generate it to cause link errors.

Added: 
    

Modified: 
    llvm/lib/Analysis/TargetLibraryInfo.cpp

Removed: 
    


################################################################################
diff  --git a/llvm/lib/Analysis/TargetLibraryInfo.cpp b/llvm/lib/Analysis/TargetLibraryInfo.cpp
index 7ce42447b6308..592caf2d0e23a 100644
--- a/llvm/lib/Analysis/TargetLibraryInfo.cpp
+++ b/llvm/lib/Analysis/TargetLibraryInfo.cpp
@@ -882,6 +882,9 @@ static void initializeLibCalls(TargetLibraryInfoImpl &TLI, const Triple &T,
     TLI.setUnavailable(LibFunc_vec_free);
   }
 
+  if (T.isOSAIX())
+    TLI.setUnavailable(LibFunc_memrchr);
+
   TLI.addVectorizableFunctionsFromVecLib(ClVectorLibrary, T);
 }