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[CodeGen] Avoid repeated hash lookups (NFC) #130543

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Merged
merged 1 commit into from
Mar 10, 2025
Merged

[CodeGen] Avoid repeated hash lookups (NFC) #130543

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6 changes: 3 additions & 3 deletions llvm/lib/CodeGen/CodeGenPrepare.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -4672,8 +4672,8 @@ class TypePromotionHelper {
static void addPromotedInst(InstrToOrigTy &PromotedInsts,
Instruction *ExtOpnd, bool IsSExt) {
ExtType ExtTy = IsSExt ? SignExtension : ZeroExtension;
InstrToOrigTy::iterator It = PromotedInsts.find(ExtOpnd);
if (It != PromotedInsts.end()) {
auto [It, Inserted] = PromotedInsts.try_emplace(ExtOpnd);
if (!Inserted) {
// If the new extension is same as original, the information in
// PromotedInsts[ExtOpnd] is still correct.
if (It->second.getInt() == ExtTy)
Expand All @@ -4684,7 +4684,7 @@ class TypePromotionHelper {
// BothExtension.
ExtTy = BothExtension;
}
PromotedInsts[ExtOpnd] = TypeIsSExt(ExtOpnd->getType(), ExtTy);
It->second = TypeIsSExt(ExtOpnd->getType(), ExtTy);
}

/// Utility function to query the original type of instruction \p Opnd
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