From: Davide Italiano <davide@freebsd.org>
Date: Tue, 18 Apr 2017 00:29:54 +0000 (+0000)
Subject: [Target] Use hasOneUse() instead of getNumUses().
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=540c0392b5a8a124eb0cbc017ca7cd532cc64bf0;p=llvm

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

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
---

diff --git a/lib/Target/AArch64/AArch64ISelLowering.cpp b/lib/Target/AArch64/AArch64ISelLowering.cpp
index 38f85bfcc9f..1918d0b728c 100644
--- a/lib/Target/AArch64/AArch64ISelLowering.cpp
+++ b/lib/Target/AArch64/AArch64ISelLowering.cpp
@@ -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();