================
@@ -2446,40 +2446,14 @@
TemplateInstantiator::TransformSubstNonTypeTemplateParmExpr(
SubstReplacement = TransformExpr(E->getReplacement());
if (SubstReplacement.isInvalid())
return true;
- QualType SubstType = TransformType(E->getParameterType(getSema().Context));
- if (SubstType.isNull())
- return true;
- // The type may have been previously dependent and not now, which means we
- // might have to implicit cast the argument to the new type, for example:
- // template<auto T, decltype(T) U>
- // concept C = sizeof(U) == 4;
- // void foo() requires C<2, 'a'> { }
- // When normalizing foo(), we first form the normalized constraints of C:
- // AtomicExpr(sizeof(U) == 4,
- // U=SubstNonTypeTemplateParmExpr(Param=U,
- // Expr=DeclRef(U),
- // Type=decltype(T)))
- // Then we substitute T = 2, U = 'a' into the parameter mapping, and need to
- // produce:
- // AtomicExpr(sizeof(U) == 4,
- // U=SubstNonTypeTemplateParmExpr(Param=U,
- // Expr=ImpCast(
- // decltype(2),
- // SubstNTTPE(Param=U,
Expr='a',
- // Type=char)),
- // Type=decltype(2)))
- // The call to CheckTemplateArgument here produces the ImpCast.
- TemplateArgument SugaredConverted, CanonicalConverted;
- if (SemaRef
- .CheckTemplateArgument(E->getParameter(), SubstType,
- SubstReplacement.get(), SugaredConverted,
- CanonicalConverted,
- /*StrictCheck=*/false, Sema::CTAK_Specified)
- .isInvalid())
+ auto *Param = cast_or_null<NonTypeTemplateParmDecl>(
+ TransformDecl(E->getNameLoc(), E->getParameter()));
----------------
mizvekov wrote:
I don't understand what you mean, if you combine this PR with
https://github.com/llvm/llvm-project/pull/141776, before you applied
https://github.com/cor3ntin/llvm-project/pull/60, then every test passes,
including the one you repeated above.
https://github.com/cor3ntin/llvm-project/pull/60 can't be right, Subst* nodes
shouldn't know anything specifically about lambdas.
https://github.com/llvm/llvm-project/pull/158541
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