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| author | Evan Cheng <evan.cheng@apple.com> | 2013-02-06 02:06:33 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2013-02-06 02:06:33 +0000 |
| commit | a72b9709d75b82c1c64d3212f18f846849bbc2cf (patch) | |
| tree | 71f7ac201d73d2c68b97d80cca36947036e75539 | |
| parent | 4b00144e1b85e12af789ebfa57669c7cfaa89a0d (diff) | |
| download | bcm5719-llvm-a72b9709d75b82c1c64d3212f18f846849bbc2cf.tar.gz bcm5719-llvm-a72b9709d75b82c1c64d3212f18f846849bbc2cf.zip | |
Tweak check to avoid integer overflow (for insanely large alignments)
llvm-svn: 174482
| -rw-r--r-- | llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp index 9bd6ae61dc4..e0d664314a9 100644 --- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp +++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp @@ -3520,7 +3520,7 @@ void SelectionDAGBuilder::visitAtomicLoad(const LoadInst &I) { EVT VT = TLI.getValueType(I.getType()); - if (I.getAlignment() * 8 < VT.getSizeInBits()) + if (I.getAlignment() < VT.getSizeInBits() / 8) report_fatal_error("Cannot generate unaligned atomic load"); SDValue L = @@ -3550,7 +3550,7 @@ void SelectionDAGBuilder::visitAtomicStore(const StoreInst &I) { EVT VT = TLI.getValueType(I.getValueOperand()->getType()); - if (I.getAlignment() * 8 < VT.getSizeInBits()) + if (I.getAlignment() < VT.getSizeInBits() / 8) report_fatal_error("Cannot generate unaligned atomic store"); if (TLI.getInsertFencesForAtomic()) |
