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Teach BasicAA about arm.neon.vld1 and vst1.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130327 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dan Gohman
2011-04-27 20:44:28 +00:00
parent 0be77dff11
commit 1d7e818a38
2 changed files with 36 additions and 0 deletions
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20
lib/Analysis/BasicAliasAnalysis.cpp
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@ -779,6 +779,26 @@ BasicAliasAnalysis::getModRefInfo(ImmutableCallSite CS,
return NoModRef;
break;
}
case Intrinsic::arm_neon_vld1: {
// LLVM's vld1 and vst1 intrinsics currently only support a single
// vector register.
uint64_t Size =
TD ? TD->getTypeStoreSize(II->getType()) : UnknownSize;
if (isNoAlias(Location(II->getArgOperand(0), Size,
II->getMetadata(LLVMContext::MD_tbaa)),
Loc))
return NoModRef;
break;
}
case Intrinsic::arm_neon_vst1: {
uint64_t Size =
TD ? TD->getTypeStoreSize(II->getArgOperand(1)->getType()) : UnknownSize;
if (isNoAlias(Location(II->getArgOperand(0), Size,
II->getMetadata(LLVMContext::MD_tbaa)),
Loc))
return NoModRef;
break;
}
}
// The AliasAnalysis base class has some smarts, lets use them.