nickdesaulniers added inline comments.
================
Comment at: clang/lib/Sema/SemaChecking.cpp:10127-10129
+ if (ImplicitMatch != ArgType::NoMatchPromotionTypeConfusion &&
+ ImplicitMatch != ArgType::NoMatchTypeConfusion &&
+ !IsCharacterLiteralInt)
----------------
There's something about this conditional...I can't quite put my finger on.
Isn't `ImplicitMatch` only updated in the `const ImplicitCastExpr *ICE =
dyn_cast<ImplicitCastExpr>(E)` branch above, where `IsCharacterLiteralInt`
cannot be?
Simultaneously, isn't `IsCharacterLiteralInt` only updated in the `const
CharacterLiteral *CL = dyn_cast<CharacterLiteral>(E)` branch above, where
`ImplicitMatch` cannot be?
I wonder if we should instead hoist:
```
if (Match == ArgType::MatchPromotion) {
if (ImplicitMatch != ArgType::NoMatchPromotionTypeConfusion &&
ImplicitMatch != ArgType::NoMatchTypeConfusion)
return true;
Match = ArgType::NoMatch;
}
```
into the `const ImplicitCastExpr *ICE = dyn_cast<ImplicitCastExpr>(E)` branch
after `ImplicitMatch` is updated.
Then hoist
```
if (Match == ArgType::MatchPromotion)
return true;
```
into the `const CharacterLiteral *CL = dyn_cast<CharacterLiteral>(E)` branch
after `IsCharacterLiteralInt` is updated? Then we could delete the
`IsCharacterLiteralInt` variable perhaps?
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D132568/new/
https://reviews.llvm.org/D132568
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