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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 | 802cd5b1974bab2038b9d3c969d9beb0ab34f435 (patch) | |
| tree | e8beb1b6f1bffafeb96c93264dd924fd6625d323 /lib/CodeGen/CodeGenFunction.cpp | |
| parent | a2e94892e273423e2f772f989921cda6442a66c4 (diff) | |
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.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@165914 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/CodeGenFunction.cpp')
| -rw-r--r-- | lib/CodeGen/CodeGenFunction.cpp | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/lib/CodeGen/CodeGenFunction.cpp b/lib/CodeGen/CodeGenFunction.cpp index 8562d79ebf..5f71af8082 100644 --- a/lib/CodeGen/CodeGenFunction.cpp +++ b/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(); } |