diff options
Diffstat (limited to 'lib/CodeGen/CodeGenFunction.cpp')
| -rw-r--r-- | lib/CodeGen/CodeGenFunction.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/CodeGen/CodeGenFunction.cpp b/lib/CodeGen/CodeGenFunction.cpp index 58d56ef0df..e5cfa624b2 100644 --- a/lib/CodeGen/CodeGenFunction.cpp +++ b/lib/CodeGen/CodeGenFunction.cpp @@ -315,6 +315,10 @@ void CodeGenFunction::EmitFunctionBody(FunctionArgList &Args) { /// non-existence of any throwing calls within it. We believe this is /// lightweight enough to do at -O0. static void TryMarkNoThrow(llvm::Function *F) { + // LLVM treats 'nounwind' on a function as part of the type, so we + // can't do this on functions that can be overwritten. + if (F->mayBeOverridden()) return; + for (llvm::Function::iterator FI = F->begin(), FE = F->end(); FI != FE; ++FI) for (llvm::BasicBlock::iterator BI = FI->begin(), BE = FI->end(); BI != BE; ++BI) |