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[BasicAliasAnalysis] Do not check ModRef table for intrinsics

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All possible ModRef behaviours can be completely represented using existing LLVM IR attributes.

Differential Revision: http://reviews.llvm.org/D12033



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245224 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Igor Laevsky 2015-08-17 15:56:56 +00:00
parent f317669480
commit d9a2fcb1eb
1 changed files with 0 additions and 7 deletions
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7
lib/Analysis/BasicAliasAnalysis.cpp
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@ -532,13 +532,6 @@ BasicAliasAnalysis::getModRefBehavior(const Function *F) {
if (F->doesNotAccessMemory())
return FMRB_DoesNotAccessMemory;
// For intrinsics, we can check the table.
if (Intrinsic::ID iid = F->getIntrinsicID()) {
#define GET_INTRINSIC_MODREF_BEHAVIOR
#include "llvm/IR/Intrinsics.gen"
#undef GET_INTRINSIC_MODREF_BEHAVIOR
}
FunctionModRefBehavior Min = FMRB_UnknownModRefBehavior;
// If the function declares it only reads memory, go with that.