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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 | 73bcba5f61711e6d84f5d8fb2aa100d04a7a1c48 (patch) | |
| tree | b94c186bcafb66cddef5755cb2ecda06499dc345 /llvm/lib/Transforms | |
| parent | d230aee4be9091bccd295034c04ea3e4f969e1ad (diff) | |
| download | bcm5719-llvm-73bcba5f61711e6d84f5d8fb2aa100d04a7a1c48.tar.gz bcm5719-llvm-73bcba5f61711e6d84f5d8fb2aa100d04a7a1c48.zip | |
Don't crash when dealing with INTMIN. This fixes PR585 and
Transforms/InstCombine/2005-06-16-RangeCrash.ll
llvm-svn: 22234
Diffstat (limited to 'llvm/lib/Transforms')
| -rw-r--r-- | llvm/lib/Transforms/Scalar/InstructionCombining.cpp | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/llvm/lib/Transforms/Scalar/InstructionCombining.cpp b/llvm/lib/Transforms/Scalar/InstructionCombining.cpp index 321b032505c..d2827af3d74 100644 --- a/llvm/lib/Transforms/Scalar/InstructionCombining.cpp +++ b/llvm/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) |
