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| author | Chris Lattner <sabre@nondot.org> | 2005-06-17 02:05:55 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2005-06-17 02:05:55 +0000 |
| commit | 5662503afd2f70c3d6651549af510992ab5afc00 (patch) | |
| tree | f5dc226d988e1fc0d9bbd0ba7ae96b2531d55097 | |
| parent | 98b4d598611ffd6de0ce2cbf80ac43cae1dd805d (diff) | |
Don't crash when dealing with INTMIN. This fixes PR585 and
Transforms/InstCombine/2005-06-16-RangeCrash.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22234 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/Transforms/Scalar/InstructionCombining.cpp | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/lib/Transforms/Scalar/InstructionCombining.cpp b/lib/Transforms/Scalar/InstructionCombining.cpp index 321b032505..d2827af3d7 100644 --- a/lib/Transforms/Scalar/InstructionCombining.cpp +++ b/lib/Transforms/Scalar/InstructionCombining.cpp @@ -2699,6 +2699,8 @@ Instruction *InstCombiner::visitSetCondInst(SetCondInst &I) { if (CI->isNullValue()) { // (X / neg) op 0 LoBound = AddOne(DivRHS); HiBound = cast<ConstantInt>(ConstantExpr::getNeg(DivRHS)); + if (HiBound == DivRHS) + LoBound = 0; // - INTMIN = INTMIN } else if (isPositive(CI)) { // (X / neg) op pos HiOverflow = LoOverflow = ProdOV; if (!LoOverflow) |