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Refine this to only apply to null in the default address space.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89411 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dan Gohman 2009-11-19 23:53:49 +00:00
parent e03a39b096
commit 6d903092c9
1 changed files with 4 additions and 2 deletions
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6
lib/Analysis/CaptureTracking.cpp
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@ -107,8 +107,10 @@ bool llvm::PointerMayBeCaptured(const Value *V,
break;
case Instruction::ICmp:
// Comparing the pointer against null does not count as a capture.
if (isa<ConstantPointerNull>(I->getOperand(1)))
break;
if (ConstantPointerNull *CPN =
dyn_cast<ConstantPointerNull>(I->getOperand(1)))
if (CPN->getType()->getAddressSpace() == 0)
break;
return true;
default:
// Something else - be conservative and say it is captured.