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[Target] Use hasOneUse() instead of getNumUses().

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The latter does a liner scan over a linked list, therefore is
much more expensive.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300518 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Davide Italiano 2017-04-18 00:29:54 +00:00
parent 4df72d14c8
commit 540c0392b5
1 changed files with 1 additions and 1 deletions
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2
lib/Target/AArch64/AArch64ISelLowering.cpp
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@ -7126,7 +7126,7 @@ bool AArch64TargetLowering::isProfitableToHoist(Instruction *I) const {
if (I->getOpcode() != Instruction::FMul)
return true;
if (I->getNumUses() != 1)
if (!I->hasOneUse())
return true;
Instruction *User = I->user_back();