diff options
| author | Michel Danzer <michel.daenzer@amd.com> | 2013-02-14 08:00:33 +0000 |
|---|---|---|
| committer | Michel Danzer <michel.daenzer@amd.com> | 2013-02-14 08:00:33 +0000 |
| commit | ae0a403dab9dddcd9ba1ee20b691d8546c76ae00 (patch) | |
| tree | 2c6138193f1ad84426cca78e6f59ea80c3a9681a /llvm/lib/Target | |
| parent | 51d5eb2f631440fe6b5a524577b3d251b4592c6c (diff) | |
| download | bcm5719-llvm-ae0a403dab9dddcd9ba1ee20b691d8546c76ae00.tar.gz bcm5719-llvm-ae0a403dab9dddcd9ba1ee20b691d8546c76ae00.zip | |
R600/SI: Check for empty stack in SIAnnotateControlFlow::isTopOfStack
Fixes assertion failure in newly added lit test. Might just be a bandaid that
needs to be revisited.
llvm-svn: 175139
Diffstat (limited to 'llvm/lib/Target')
| -rw-r--r-- | llvm/lib/Target/R600/SIAnnotateControlFlow.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/llvm/lib/Target/R600/SIAnnotateControlFlow.cpp b/llvm/lib/Target/R600/SIAnnotateControlFlow.cpp index f5803774186..2477e2a9dcc 100644 --- a/llvm/lib/Target/R600/SIAnnotateControlFlow.cpp +++ b/llvm/lib/Target/R600/SIAnnotateControlFlow.cpp @@ -147,7 +147,7 @@ bool SIAnnotateControlFlow::doInitialization(Module &M) { /// \brief Is BB the last block saved on the stack ? bool SIAnnotateControlFlow::isTopOfStack(BasicBlock *BB) { - return Stack.back().first == BB; + return !Stack.empty() && Stack.back().first == BB; } /// \brief Pop the last saved value from the control flow stack |
