diff options
Diffstat (limited to 'llvm/lib/Transforms')
| -rw-r--r-- | llvm/lib/Transforms/Scalar/MergeICmps.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/llvm/lib/Transforms/Scalar/MergeICmps.cpp b/llvm/lib/Transforms/Scalar/MergeICmps.cpp index 57dd2292dfb..ff0183a8ea2 100644 --- a/llvm/lib/Transforms/Scalar/MergeICmps.cpp +++ b/llvm/lib/Transforms/Scalar/MergeICmps.cpp @@ -768,6 +768,10 @@ PreservedAnalyses MergeICmps::runImpl(Function &F, const TargetLibraryInfo *TLI, // The rationale is to avoid turning small chains into memcmp calls. if (!TTI->enableMemCmpExpansion(true)) return PreservedAnalyses::all(); + // If we don't have memcmp avaiable we can't emit calls to it. + if (!TLI->has(LibFunc_memcmp)) + return PreservedAnalyses::all(); + bool MadeChange = false; for (auto BBIt = ++F.begin(); BBIt != F.end(); ++BBIt) { |
