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| author | Chris Lattner <sabre@nondot.org> | 2009-06-11 17:54:56 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2009-06-11 17:54:56 +0000 |
| commit | 3590abfda093eb5b5e4536727d2e4195400b7716 (patch) | |
| tree | dc0b86bf1e10543e076ac5b7fd931f2219641901 /lib/Transforms | |
| parent | 6396329d52e21674093b71eee3327c03ae3fbeec (diff) | |
| download | external_llvm-3590abfda093eb5b5e4536727d2e4195400b7716.zip external_llvm-3590abfda093eb5b5e4536727d2e4195400b7716.tar.gz external_llvm-3590abfda093eb5b5e4536727d2e4195400b7716.tar.bz2 | |
Fix 4366: store to null in non-default addr space should not be
turned into unreachable.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73195 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Transforms')
| -rw-r--r-- | lib/Transforms/Scalar/InstructionCombining.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/Transforms/Scalar/InstructionCombining.cpp b/lib/Transforms/Scalar/InstructionCombining.cpp index 6d2ff0e..03a7317 100644 --- a/lib/Transforms/Scalar/InstructionCombining.cpp +++ b/lib/Transforms/Scalar/InstructionCombining.cpp @@ -11824,7 +11824,8 @@ Instruction *InstCombiner::visitStoreInst(StoreInst &SI) { if (SI.isVolatile()) return 0; // Don't hack volatile stores. // store X, null -> turns into 'unreachable' in SimplifyCFG - if (isa<ConstantPointerNull>(Ptr)) { + if (isa<ConstantPointerNull>(Ptr) && + cast<PointerType>(Ptr->getType())->getAddressSpace() == 0) { if (!isa<UndefValue>(Val)) { SI.setOperand(0, UndefValue::get(Val->getType())); if (Instruction *U = dyn_cast<Instruction>(Val)) |