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Refine this to only apply to null in the default address space.
author
Dan Gohman
<gohman@apple.com>
Thu, 19 Nov 2009 23:53:49 +0000
(23:53 +0000)
committer
Dan Gohman
<gohman@apple.com>
Thu, 19 Nov 2009 23:53:49 +0000
(23:53 +0000)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89411
91177308
-0d34-0410-b5e6-
96231b3b80d8
lib/Analysis/CaptureTracking.cpp
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diff --git
a/lib/Analysis/CaptureTracking.cpp
b/lib/Analysis/CaptureTracking.cpp
index
ae0766b
..
6781dcc
100644
(file)
--- a/
lib/Analysis/CaptureTracking.cpp
+++ b/
lib/Analysis/CaptureTracking.cpp
@@
-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.