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| author | Richard Smith <richard-llvm@metafoo.co.uk> | 2012-10-15 00:23:07 +0000 |
|---|---|---|
| committer | Richard Smith <richard-llvm@metafoo.co.uk> | 2012-10-15 00:23:07 +0000 |
| commit | 6b4ebcc653b63c544a9eca39441e85a5a18f140f (patch) | |
| tree | ec6cdfee1c7c805b317dbb211e25113c8932c1d6 /clang/lib/CodeGen/CodeGenFunction.cpp | |
| parent | feea5d6fb45ce7485c411a1234107534a4b5bd76 (diff) | |
| download | bcm5719-llvm-6b4ebcc653b63c544a9eca39441e85a5a18f140f.tar.gz bcm5719-llvm-6b4ebcc653b63c544a9eca39441e85a5a18f140f.zip | |
At -O0, emit an @llvm.trap() call at the end of a value-returning function which
fails to return a value, to make debugging this issue easier.
llvm-svn: 165914
Diffstat (limited to 'clang/lib/CodeGen/CodeGenFunction.cpp')
| -rw-r--r-- | clang/lib/CodeGen/CodeGenFunction.cpp | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/clang/lib/CodeGen/CodeGenFunction.cpp b/clang/lib/CodeGen/CodeGenFunction.cpp index 8562d79ebf5..5f71af80827 100644 --- a/clang/lib/CodeGen/CodeGenFunction.cpp +++ b/clang/lib/CodeGen/CodeGenFunction.cpp @@ -547,6 +547,8 @@ void CodeGenFunction::GenerateCode(GlobalDecl GD, llvm::Function *Fn, EmitCheck(Builder.getFalse(), "missing_return", EmitCheckSourceLocation(FD->getLocation()), llvm::ArrayRef<llvm::Value*>()); + else if (CGM.getCodeGenOpts().OptimizationLevel == 0) + Builder.CreateCall(CGM.getIntrinsic(llvm::Intrinsic::trap)); Builder.CreateUnreachable(); Builder.ClearInsertionPoint(); } |
