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Fix pointer heuristic. Check whether predicator is ICMP_NE instead of if it is
author
Jakub Staszak
<jstaszak@apple.com>
Fri, 15 Jul 2011 20:51:06 +0000
(20:51 +0000)
committer
Jakub Staszak
<jstaszak@apple.com>
Fri, 15 Jul 2011 20:51:06 +0000
(20:51 +0000)
not isEquality().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135296
91177308
-0d34-0410-b5e6-
96231b3b80d8
lib/Analysis/BranchProbabilityInfo.cpp
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diff --git
a/lib/Analysis/BranchProbabilityInfo.cpp
b/lib/Analysis/BranchProbabilityInfo.cpp
index 15059c733ab6aaca24c00793cae19e16463dd8eb..609279f11714143a0849a33ec2bf3ca71b2cb469 100644
(file)
--- a/
lib/Analysis/BranchProbabilityInfo.cpp
+++ b/
lib/Analysis/BranchProbabilityInfo.cpp
@@
-168,7
+168,7
@@
void BranchProbabilityAnalysis::calcPointerHeuristics(BasicBlock *BB) {
Value *Cond = BI->getCondition();
ICmpInst *CI = dyn_cast<ICmpInst>(Cond);
- if (!CI)
+ if (!CI
|| !CI->isEquality()
)
return;
Value *LHS = CI->getOperand(0);
@@
-185,7
+185,7
@@
void BranchProbabilityAnalysis::calcPointerHeuristics(BasicBlock *BB) {
// p == 0 -> isProb = false
// p != q -> isProb = true
// p == q -> isProb = false;
- bool isProb =
!CI->isEquality()
;
+ bool isProb =
CI->getPredicate() == ICmpInst::ICMP_NE
;
if (!isProb)
std::swap(Taken, NonTaken);