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[profiledata] Avoid creating a temporary vector in getNumValueData

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getValueSitesForKind returns ArrayRef which has a cast operator
to std::vector, as a result a temporary vector is created
if the type of the variable is const std::vector& 
that is suboptimal in this case.

Differential revision: https://reviews.llvm.org/D34970

Test plan: make check-all

llvm-svn: 307113
This commit is contained in:
Alexander Shaposhnikov 2017-07-05 01:20:52 +00:00
parent 2f21b887d3
commit 4bfc13da61
1 changed files with 1 additions and 4 deletions
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5
include/llvm/ProfileData/InstrProf.h
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@ -753,11 +753,8 @@ uint32_t InstrProfRecord::getNumValueKinds() const {
uint32_t InstrProfRecord::getNumValueData(uint32_t ValueKind) const {
uint32_t N = 0;
const std::vector<InstrProfValueSiteRecord> &SiteRecords =
getValueSitesForKind(ValueKind);
for (auto &SR : SiteRecords) {
for (auto &SR : getValueSitesForKind(ValueKind))
N += SR.ValueData.size();
}
return N;
}