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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 | 607acd66f400045919b1067432927a53484eaec1 (patch) | |
| tree | 203b6370504c7ecc32e20c3d6bae90913e9af68a | |
| parent | c342d9d345acdbd95577c7c6e9ce7d3a1bdb57bf (diff) | |
| download | external_llvm-607acd66f400045919b1067432927a53484eaec1.zip external_llvm-607acd66f400045919b1067432927a53484eaec1.tar.gz external_llvm-607acd66f400045919b1067432927a53484eaec1.tar.bz2 | |
Tweak check to avoid integer overflow (for insanely large alignments)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174482 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp index 9bd6ae6..e0d6643 100644 --- a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp +++ b/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()) |