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Move setName after accessing Name

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llvm-svn: 274862
This commit is contained in:
Eric Liu 2016-07-08 16:09:51 +00:00
parent 7327cd030c
commit 57bd926294
1 changed files with 2 additions and 5 deletions
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7
lib/IR/AutoUpgrade.cpp
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@ -67,10 +67,7 @@ static bool UpgradeIntrinsicFunction1(Function *F, Function *&NewFn) {
assert(F && "Illegal to upgrade a non-existent Function.");
// Quickly eliminate it, if it's not a candidate.
// Make a copy of the name so that we don't need to worry about the life-time
// of StringRef.
std::string NameStr = F->getName().str();
StringRef Name = NameStr;
StringRef Name = F->getName();
if (Name.size() <= 8 || !Name.startswith("llvm."))
return false;
Name = Name.substr(5); // Strip off "llvm."
@ -348,7 +345,6 @@ static bool UpgradeIntrinsicFunction1(Function *F, Function *&NewFn) {
if (IsX86 && (Name.startswith("avx512.mask.pslli.") ||
Name.startswith("avx512.mask.psrai.") ||
Name.startswith("avx512.mask.psrli."))) {
F->setName("llvm.x86." + Name + ".old");
Intrinsic::ID ShiftID;
if (Name.slice(12, 16) == "psll")
ShiftID = Name[18] == 'd' ? Intrinsic::x86_avx512_mask_psll_di_512
@ -359,6 +355,7 @@ static bool UpgradeIntrinsicFunction1(Function *F, Function *&NewFn) {
else
ShiftID = Name[18] == 'd' ? Intrinsic::x86_avx512_mask_psrl_di_512
: Intrinsic::x86_avx512_mask_psrl_qi_512;
F->setName("llvm.x86." + Name + ".old");
NewFn = Intrinsic::getDeclaration(F->getParent(), ShiftID);
return true;
}