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Revert this change from a while ago; ScalarEvolution shouldn't analyze

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undef as 0, since it can't force other analyses to intepret the undef
in the same way.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100749 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dan Gohman
2010-04-08 05:58:24 +00:00
parent 701a4aef7f
commit 8ef5caa80a
1 changed files with 0 additions and 2 deletions
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2
lib/Analysis/ScalarEvolution.cpp
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@ -3123,8 +3123,6 @@ const SCEV *ScalarEvolution::createSCEV(Value *V) {
return getConstant(CI); return getConstant(CI);
else if (isa<ConstantPointerNull>(V)) else if (isa<ConstantPointerNull>(V))
return getIntegerSCEV(0, V->getType()); return getIntegerSCEV(0, V->getType());
else if (isa<UndefValue>(V))
return getIntegerSCEV(0, V->getType());
else if (GlobalAlias *GA = dyn_cast<GlobalAlias>(V)) else if (GlobalAlias *GA = dyn_cast<GlobalAlias>(V))
return GA->mayBeOverridden() ? getUnknown(V) : getSCEV(GA->getAliasee()); return GA->mayBeOverridden() ? getUnknown(V) : getSCEV(GA->getAliasee());
else else