================
@@ -15186,6 +15186,11 @@ class Sema final : public SemaBase {
/// here.
llvm::DenseMap<ConstrainedDeclOrNestedRequirement, NormalizedConstraint *>
NormalizationCache;
+ /// Caches the normal form of constraint expressions (and their pack
+ /// substitution index). These are shared by e.g. the members of all
+ /// specializations of a class template. Used to fill NormalizationCache.
+ llvm::DenseMap<std::pair<const Expr *, unsigned>, NormalizedConstraint *>
+ NormalizedConstraintExprCache;
----------------
nico wrote:
Oh, that's a great suggestion! It seems to work, is less code, and has the same
perf. It does change error-case diagnostics some. But it looks like that might
be a progression. I put the error diag change into #227086 so that this PR here
can stay behavior-preserving. I'll update this PR here once #227086 is done :)
https://github.com/llvm/llvm-project/pull/226620
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