diff options
Diffstat (limited to 'llvm/lib/Transforms/IPO/MergeFunctions.cpp')
-rw-r--r-- | llvm/lib/Transforms/IPO/MergeFunctions.cpp | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/llvm/lib/Transforms/IPO/MergeFunctions.cpp b/llvm/lib/Transforms/IPO/MergeFunctions.cpp index 11efe95b10d4..26b204f61cb9 100644 --- a/llvm/lib/Transforms/IPO/MergeFunctions.cpp +++ b/llvm/lib/Transforms/IPO/MergeFunctions.cpp @@ -383,6 +383,12 @@ bool MergeFunctions::doSanityCheck(std::vector<WeakTrackingVH> &Worklist) { } #endif +/// Check whether \p F is eligible for function merging. +static bool isEligibleForMerging(Function &F) { + return !F.isDeclaration() && !F.hasAvailableExternallyLinkage() && + !F.isVarArg(); +} + bool MergeFunctions::runOnModule(Module &M) { if (skipModule(M)) return false; @@ -394,7 +400,7 @@ bool MergeFunctions::runOnModule(Module &M) { std::vector<std::pair<FunctionComparator::FunctionHash, Function *>> HashedFuncs; for (Function &Func : M) { - if (!Func.isDeclaration() && !Func.hasAvailableExternallyLinkage()) { + if (isEligibleForMerging(Func)) { HashedFuncs.push_back({FunctionComparator::functionHash(Func), &Func}); } } |