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| author | Evan Cheng <evan.cheng@apple.com> | 2010-03-29 21:27:30 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2010-03-29 21:27:30 +0000 |
| commit | 742db6874a10b7bd3eaade2e865ef12ed357e74e (patch) | |
| tree | f9ec063bcfad928bf9f7e2d6fba217596bffc5f4 /llvm/lib/CodeGen | |
| parent | b355db7877176696fa7e57269b44e26a312fc623 (diff) | |
| download | bcm5719-llvm-742db6874a10b7bd3eaade2e865ef12ed357e74e.tar.gz bcm5719-llvm-742db6874a10b7bd3eaade2e865ef12ed357e74e.zip | |
Fix PR4975. Avoid referencing empty vector.
llvm-svn: 99840
Diffstat (limited to 'llvm/lib/CodeGen')
| -rw-r--r-- | llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp index faefe2932ec..7a0daf69c84 100644 --- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp +++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp @@ -6051,8 +6051,10 @@ void SelectionDAGISel::LowerArguments(BasicBlock *LLVMBB) { } if (!I->use_empty()) { - SDValue Res = DAG.getMergeValues(&ArgValues[0], NumValues, - SDB->getCurDebugLoc()); + SDValue Res; + if (!ArgValues.empty()) + Res = DAG.getMergeValues(&ArgValues[0], NumValues, + SDB->getCurDebugLoc()); SDB->setValue(I, Res); // If this argument is live outside of the entry block, insert a copy from |
