https://github.com/zyn0217 approved this pull request.
thanks
Do we also want to add some tests?
https://github.com/llvm/llvm-project/pull/143345
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https://github.com/llvm/llvm-project/pull/143268
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https://github.com/zyn0217 approved this pull request.
Thanks
https://github.com/llvm/llvm-project/pull/143291
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@@ -6998,6 +7007,31 @@ namespace {
else
return C.getRValueReferenceType(New);
}
+ case Elaborated: {
+auto *ET = cast(Old);
+return C.getElaboratedType(ET->getKeyword(), ET->getQualifier(),
+ wrap(C,
@@ -6998,6 +7007,31 @@ namespace {
else
return C.getRValueReferenceType(New);
}
+ case Elaborated: {
+auto *ET = cast(Old);
+return C.getElaboratedType(ET->getKeyword(), ET->getQualifier(),
+ wrap(C,
@@ -6998,6 +7007,31 @@ namespace {
else
return C.getRValueReferenceType(New);
}
+ case Elaborated: {
+auto *ET = cast(Old);
+return C.getElaboratedType(ET->getKeyword(), ET->getQualifier(),
+ wrap(C,
https://github.com/zyn0217 created
https://github.com/llvm/llvm-project/pull/143143
https://github.com/llvm/llvm-project/issues/142608 reflects a case where the
type sugar on the attributed type alias is lost.
It might be possible to add the sugar back at the cost of duplicating the type
alia
https://github.com/zyn0217 closed
https://github.com/llvm/llvm-project/pull/143096
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zyn0217 wrote:
@rupprecht I sent out https://github.com/llvm/llvm-project/pull/143096 for the
fix :)
https://github.com/llvm/llvm-project/pull/122423
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https://github.com/zyn0217 updated
https://github.com/llvm/llvm-project/pull/143096
>From 020160fde7a3cc13b104a5f5577a8037cf412c66 Mon Sep 17 00:00:00 2001
From: Younan Zhang
Date: Fri, 6 Jun 2025 17:09:08 +0800
Subject: [PATCH 1/2] [Clang] Fail the constraint substitution early after
CWG2369
https://github.com/zyn0217 edited
https://github.com/llvm/llvm-project/pull/143096
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https://github.com/llvm/llvm-project/pull/143096
>From 020160fde7a3cc13b104a5f5577a8037cf412c66 Mon Sep 17 00:00:00 2001
From: Younan Zhang
Date: Fri, 6 Jun 2025 17:09:08 +0800
Subject: [PATCH 1/2] [Clang] Fail the constraint substitution early after
CWG2369
https://github.com/zyn0217 ready_for_review
https://github.com/llvm/llvm-project/pull/143096
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https://github.com/zyn0217 created
https://github.com/llvm/llvm-project/pull/143096
CWG2369 revealed another case where we were SFINAE'ing out the invalid result
of substitution, but the expression now makes into evaluation.
We switch to the concept specialization's context before we check it.
https://github.com/zyn0217 updated
https://github.com/llvm/llvm-project/pull/142945
>From cdd6868879abf4b6c991c7f2b3e9cf9673b0570a Mon Sep 17 00:00:00 2001
From: Younan Zhang
Date: Thu, 5 Jun 2025 18:52:01 +0800
Subject: [PATCH 1/3] [Clang] Fix name lookup of conversion operators
(TODO: Add ex
https://github.com/zyn0217 updated
https://github.com/llvm/llvm-project/pull/142945
>From cdd6868879abf4b6c991c7f2b3e9cf9673b0570a Mon Sep 17 00:00:00 2001
From: Younan Zhang
Date: Thu, 5 Jun 2025 18:52:01 +0800
Subject: [PATCH 1/2] [Clang] Fix name lookup of conversion operators
(TODO: Add ex
https://github.com/zyn0217 created
https://github.com/llvm/llvm-project/pull/142945
(TODO: Add explanation)
Fixes https://github.com/llvm/llvm-project/issues/28181
Fixes https://github.com/llvm/llvm-project/issues/94052
>From cdd6868879abf4b6c991c7f2b3e9cf9673b0570a Mon Sep 17 00:00:00 2001
Fr
@@ -5120,6 +5121,10 @@ bool Sema::addInstantiatedParametersToScope(
// Simple case: not a parameter pack.
assert(FParamIdx < Function->getNumParams());
ParmVarDecl *FunctionParam = Function->getParamDecl(FParamIdx);
+ DeclarationName name = FunctionParam-
https://github.com/zyn0217 approved this pull request.
I hope it helps!
https://github.com/llvm/llvm-project/pull/142592
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https://github.com/llvm/llvm-project/pull/142585
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https://github.com/zyn0217 closed
https://github.com/llvm/llvm-project/pull/122423
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https://github.com/llvm/llvm-project/pull/142162
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@@ -2127,7 +2127,7 @@ static TemplateDeductionResult
DeduceTemplateArgumentsByTypeMatch(
TA = S.Context.getTypeDeclType(MPA->getMostRecentCXXRecordDecl());
} else {
NestedNameSpecifier *QA = MPA->getQualifier();
-TA = QualType(QA->translateToType(
https://github.com/zyn0217 approved this pull request.
https://github.com/llvm/llvm-project/pull/142081
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https://github.com/zyn0217 approved this pull request.
https://github.com/llvm/llvm-project/pull/141940
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https://github.com/zyn0217 approved this pull request.
https://github.com/llvm/llvm-project/pull/141485
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@@ -669,6 +669,7 @@ Bug Fixes in This Version
base classes. (GH139452)
- Fixed an assertion failure in serialization of constexpr structs containing
unions. (#GH140130)
- Fixed duplicate entries in TableGen that caused the wrong attribute to be
selected. (GH#140701)
+- Fixe
zyn0217 wrote:
@QiYueFeiXue I don't think @shafik means to directly copy his words to the PR
body/title. Please at least flesh out these dotted parts and make the sentences
complete, thanks.
https://github.com/llvm/llvm-project/pull/141485
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zyn0217 wrote:
/cherry-pick 61314076f
https://github.com/llvm/llvm-project/pull/141890
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https://github.com/zyn0217 approved this pull request.
Thanks!
https://github.com/llvm/llvm-project/pull/141890
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https://github.com/zyn0217 closed
https://github.com/llvm/llvm-project/pull/141741
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https://github.com/zyn0217 updated
https://github.com/llvm/llvm-project/pull/141741
>From 4fdb0069e260e36d8cbd021536adc14f6b9ddef1 Mon Sep 17 00:00:00 2001
From: Younan Zhang
Date: Wed, 28 May 2025 18:37:38 +0800
Subject: [PATCH 1/2] [Clang] Reset ArgPackSubstIndex before rewriting CTAD
templa
https://github.com/zyn0217 edited
https://github.com/llvm/llvm-project/pull/141741
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https://github.com/zyn0217 created
https://github.com/llvm/llvm-project/pull/141741
032ad59 taught the instantiator to expand template argument packs for rewrite.
However we might already be in a pack expansion when we synthesizing the CTAD
guide, so we reset the ArgPackSubstIndex to ensure it
zyn0217 wrote:
@cor3ntin can we merge it? building clang with ToT clang results in a lot of
warnings now.
https://github.com/llvm/llvm-project/pull/141091
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https://github.com/llvm/llvm-project/pull/122423
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@@ -13458,6 +13473,10 @@ class Sema final : public SemaBase {
// FIXME: Should we have a similar limit for other forms of synthesis?
unsigned NonInstantiationEntries;
+ /// The number of \p CodeSynthesisContexts that are not constraint
+ /// substitution.
+ unsigned Non
@@ -522,6 +522,12 @@ enum class TemplateSubstitutionKind : char {
llvm::PointerUnion *
findInstantiationOf(const Decl *D);
+/// Similar to \p findInstantiationOf(), but it wouldn't assert if the
+/// instantiation was not found within the current instantiation
https://github.com/zyn0217 closed
https://github.com/llvm/llvm-project/pull/141547
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https://github.com/zyn0217 created
https://github.com/llvm/llvm-project/pull/141547
I think the intent of df18ee96206 was to substitute only those non-packs into a
pack expansion type (e.g. `T` in `T::pack`...), so let's hold off pack
expansions explicitly, in case there are calls coming from
https://github.com/zyn0217 edited
https://github.com/llvm/llvm-project/pull/141547
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https://github.com/zyn0217 updated
https://github.com/llvm/llvm-project/pull/122423
>From 56bacf47c53aca276ae4fa6aa2972b7eda152ddd Mon Sep 17 00:00:00 2001
From: Younan Zhang
Date: Fri, 10 Jan 2025 09:46:24 +0800
Subject: [PATCH 01/18] Reapply "[Clang] Implement CWG2369 "Ordering between
const
https://github.com/zyn0217 updated
https://github.com/llvm/llvm-project/pull/122423
>From 56bacf47c53aca276ae4fa6aa2972b7eda152ddd Mon Sep 17 00:00:00 2001
From: Younan Zhang
Date: Fri, 10 Jan 2025 09:46:24 +0800
Subject: [PATCH 01/15] Reapply "[Clang] Implement CWG2369 "Ordering between
const
zyn0217 wrote:
Sure, let's just wait until CWG opines.
https://github.com/llvm/llvm-project/pull/141340
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zyn0217 wrote:
@cor3ntin it's ready :)
https://github.com/llvm/llvm-project/pull/122423
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https://github.com/zyn0217 updated
https://github.com/llvm/llvm-project/pull/122423
>From 56bacf47c53aca276ae4fa6aa2972b7eda152ddd Mon Sep 17 00:00:00 2001
From: Younan Zhang
Date: Fri, 10 Jan 2025 09:46:24 +0800
Subject: [PATCH 01/17] Reapply "[Clang] Implement CWG2369 "Ordering between
const
https://github.com/zyn0217 updated
https://github.com/llvm/llvm-project/pull/122423
>From 56bacf47c53aca276ae4fa6aa2972b7eda152ddd Mon Sep 17 00:00:00 2001
From: Younan Zhang
Date: Fri, 10 Jan 2025 09:46:24 +0800
Subject: [PATCH 01/16] Reapply "[Clang] Implement CWG2369 "Ordering between
const
https://github.com/zyn0217 approved this pull request.
https://github.com/llvm/llvm-project/pull/141382
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https://github.com/zyn0217 created
https://github.com/llvm/llvm-project/pull/141340
https://github.com/llvm/llvm-project/commit/200f3bd39562f4d605f13567398025d30fa27d61
introduced a parsing scope to avoid deferring access checking
for friend declarations. That turned out to be insufficient beca
https://github.com/zyn0217 closed
https://github.com/llvm/llvm-project/pull/141207
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https://github.com/zyn0217 edited
https://github.com/llvm/llvm-project/pull/141207
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https://github.com/llvm/llvm-project/pull/141207
>From c63f3f82d6e4c576051532b2272abf4ac0055d7f Mon Sep 17 00:00:00 2001
From: Younan Zhang
Date: Fri, 23 May 2025 15:29:49 +0800
Subject: [PATCH 1/2] [Clang] Fix the access checking for non-aggregates in
defaul
zyn0217 wrote:
> Does this fixes #62444 ?
Yes 😎
https://github.com/llvm/llvm-project/pull/141207
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@@ -282,4 +283,25 @@ static_assert(S().SizeOfT() == sizeof(short
*), "");
} // namespace GH68490
+namespace GH83608 {
+
+class single;
+
+class check_constructible {
+ // This makes it a non-aggregate in C++20+.
+ check_constructible() = default;
zyn0217 w
https://github.com/zyn0217 created
https://github.com/llvm/llvm-project/pull/141207
We check the accessibility of constructors when initializing a default argument
whose type is not an aggregate.
Make sure the check is performed within the correct DeclContext. Otherwise, it
will be delayed un
@@ -542,7 +542,8 @@ bool SemaOpenCL::checkBuiltinToAddr(unsigned BuiltinID,
CallExpr *Call) {
auto RT = Call->getArg(0)->getType();
if (!RT->isPointerType() ||
RT->getPointeeType().getAddressSpace() == LangAS::opencl_constant) {
-Diag(Call->getBeginLoc(), diag::e
@@ -296,14 +298,18 @@ class NestedNameSpecifierLoc {
/// Retrieve the location of the beginning of this
/// nested-name-specifier.
SourceLocation getBeginLoc() const {
-return getSourceRange().getBegin();
+if (!Qualifier)
+ return SourceLocation();
+
+Nes
@@ -1638,43 +1647,6 @@ CallExpr::getUnusedResultAttr(const ASTContext &Ctx)
const {
return {nullptr, nullptr};
}
-SourceLocation CallExpr::getBeginLoc() const {
- if (const auto *OCE = dyn_cast(this))
-return OCE->getBeginLoc();
-
- // A non-dependent call to a member
@@ -563,17 +563,21 @@ class alignas(void *) Stmt {
unsigned HasFPFeatures : 1;
/// True if the call expression is a must-elide call to a coroutine.
+LLVM_PREFERRED_TYPE(bool)
unsigned IsCoroElideSafe : 1;
-/// Padding used to align OffsetToTrailingObject
@@ -542,7 +542,8 @@ bool SemaOpenCL::checkBuiltinToAddr(unsigned BuiltinID,
CallExpr *Call) {
auto RT = Call->getArg(0)->getType();
if (!RT->isPointerType() ||
RT->getPointeeType().getAddressSpace() == LangAS::opencl_constant) {
-Diag(Call->getBeginLoc(), diag::e
https://github.com/zyn0217 closed
https://github.com/llvm/llvm-project/pull/141009
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https://github.com/zyn0217 closed
https://github.com/llvm/llvm-project/pull/140930
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zyn0217 wrote:
I'll go ahead and merge this: the eager instantiation of member templates -
even it is still dependent - doesnt look right to me
In the meantime, I'll look into the case and see if I can figure out a solution
https://github.com/llvm/llvm-project/pull/140930
_
zyn0217 wrote:
I feel an invalid Decl shouldn't make its way down so deeper into
instantiation. Could you check?
https://github.com/llvm/llvm-project/pull/140905
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https://github.com/zyn0217 approved this pull request.
I'll approve it, because I have a similar experience that swapping the deferred
instantiation and immediate instantiation order caused a very subtle failure of
return type deduction.
However, just as what @AaronBallman suggested, please ho
https://github.com/zyn0217 approved this pull request.
https://github.com/llvm/llvm-project/pull/140831
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@@ -1321,4 +1321,39 @@ namespace GH139160{
// expected-note@-2
{{non-constexpr function 'make_struct' cannot be used in a constant expression}}
};
+// taken from: https://github.com/llvm/llvm-project/issues/139818
+namespace GH
https://github.com/zyn0217 closed
https://github.com/llvm/llvm-project/pull/140714
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https://github.com/zyn0217 created
https://github.com/llvm/llvm-project/pull/140714
When using InitChecker with VerifyOnly, we create a new designated initializer
to handle anonymous fields. However in the last call to
CheckDesignatedInitializer, the subinitializer isn't properly preserved but
@@ -2189,8 +2189,14 @@ StmtProfiler::VisitCXXPseudoDestructorExpr(const
CXXPseudoDestructorExpr *S) {
void StmtProfiler::VisitOverloadExpr(const OverloadExpr *S) {
VisitExpr(S);
- VisitNestedNameSpecifier(S->getQualifier());
- VisitName(S->getName(), /*TreatAsDecl*/ true)
https://github.com/zyn0217 created
https://github.com/llvm/llvm-project/pull/140680
For a dependent variable template specialization, we don't build a dependent
Decl node or a DeclRefExpr to represent it. Instead, we preserve the
UnresolvedLookupExpr until instantiation.
However, this approac
zyn0217 wrote:
I reverted it :(
https://github.com/llvm/llvm-project/pull/140029
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https://github.com/zyn0217 closed
https://github.com/llvm/llvm-project/pull/140655
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https://github.com/zyn0217 created
https://github.com/llvm/llvm-project/pull/140655
This introduced a bug where noexcept specifiers are involved, as reported in
https://github.com/llvm/llvm-project/pull/140029#issuecomment-2892259764
Addressing that doesn't seem trivial at the moment, so I'll
zyn0217 wrote:
@rupprecht That doesn't seem right... Will look into it
https://github.com/llvm/llvm-project/pull/140029
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zyn0217 wrote:
Does it fix https://github.com/llvm/llvm-project/issues/115289?
https://github.com/llvm/llvm-project/pull/140576
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https://github.com/zyn0217 closed
https://github.com/llvm/llvm-project/pull/138122
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https://github.com/zyn0217 updated
https://github.com/llvm/llvm-project/pull/140029
>From 143a35ef0af10add4a0705ea4ca11856f00dcb83 Mon Sep 17 00:00:00 2001
From: Younan Zhang
Date: Thu, 15 May 2025 16:51:51 +0800
Subject: [PATCH] [Clang] Profile singly-resolved UnresolvedLookupExpr with the
de
@@ -692,6 +692,70 @@ ExprResult Parser::ParseLambdaExpression() {
return ParseLambdaExpressionAfterIntroducer(Intro);
}
+bool Parser::IsLambdaAfterTypeCast() {
+ assert(getLangOpts().CPlusPlus && Tok.is(tok::l_square) &&
+ "Not at the start of a possible lambda expr
https://github.com/zyn0217 created
https://github.com/llvm/llvm-project/pull/140029
For a dependent variable template specialization, we don't build a dependent
Decl node or a DeclRefExpr to represent it. Instead, we preserve the
UnresolvedLookupExpr until instantiation.
However, this approac
https://github.com/zyn0217 edited
https://github.com/llvm/llvm-project/pull/106730
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@@ -6484,6 +6499,57 @@ class SubstTemplateTypeParmType final
}
};
+/// Represents the result of substituting a set of types as a template argument
+/// that needs to be expanded later.
+///
+/// These types are always dependent and produced depending on the situations:
+///
@@ -5054,95 +5089,128 @@ bool
TreeTransform::TransformTemplateArguments(
}
if (In.getArgument().isPackExpansion()) {
- // We have a pack expansion, for which we will be substituting into
- // the pattern.
- SourceLocation Ellipsis;
- UnsignedOrNone
@@ -6484,6 +6499,57 @@ class SubstTemplateTypeParmType final
}
};
+/// Represents the result of substituting a set of types as a template argument
+/// that needs to be expanded later.
+///
+/// These types are always dependent and produced depending on the situations:
+///
https://github.com/zyn0217 approved this pull request.
LGTM plus nits
https://github.com/llvm/llvm-project/pull/138122
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@@ -27,3 +27,15 @@ template constexpr int A::n = sizeof(A) +
sizeof(T);
template inline constexpr int A::m = sizeof(A) + sizeof(T);
static_assert(A().f() == 5);
static_assert(A().g() == 5);
+
+template struct InlineAuto {
+ template inline static auto var = 5;
+};
+
+temp
https://github.com/zyn0217 edited
https://github.com/llvm/llvm-project/pull/138122
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@@ -1,5 +1,19 @@
// RUN: %clang_cc1 -std=c++1z %s -emit-llvm -o - -triple x86_64-linux-gnu |
FileCheck %s
+template struct InlineAuto {
+ template inline static auto var = 5;
+};
+int inlineauot = InlineAuto::var;
zyn0217 wrote:
inlineauto?
https://github
@@ -1,5 +1,19 @@
// RUN: %clang_cc1 -std=c++1z %s -emit-llvm -o - -triple x86_64-linux-gnu |
FileCheck %s
+template struct InlineAuto {
+ template inline static auto var = 5;
+};
+int inlineauot = InlineAuto::var;
+// CHECK: @_ZN10InlineAutoIiE3varIiEE = {{.*}}i32 5{{.*}}co
https://github.com/zyn0217 edited
https://github.com/llvm/llvm-project/pull/138122
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https://github.com/zyn0217 updated
https://github.com/llvm/llvm-project/pull/122423
>From 56bacf47c53aca276ae4fa6aa2972b7eda152ddd Mon Sep 17 00:00:00 2001
From: Younan Zhang
Date: Fri, 10 Jan 2025 09:46:24 +0800
Subject: [PATCH 01/14] Reapply "[Clang] Implement CWG2369 "Ordering between
const
zyn0217 wrote:
Not yet, I haven't check GCC's recent changes yet so there might still be some
differences with them.
https://github.com/llvm/llvm-project/pull/122423
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https://github.com/zyn0217 deleted
https://github.com/llvm/llvm-project/pull/106730
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@@ -5054,95 +5089,128 @@ bool
TreeTransform::TransformTemplateArguments(
}
if (In.getArgument().isPackExpansion()) {
- // We have a pack expansion, for which we will be substituting into
- // the pattern.
- SourceLocation Ellipsis;
- UnsignedOrNone
https://github.com/zyn0217 edited
https://github.com/llvm/llvm-project/pull/106730
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@@ -5054,95 +5089,128 @@ bool
TreeTransform::TransformTemplateArguments(
}
if (In.getArgument().isPackExpansion()) {
- // We have a pack expansion, for which we will be substituting into
- // the pattern.
- SourceLocation Ellipsis;
- UnsignedOrNone
@@ -6484,6 +6499,57 @@ class SubstTemplateTypeParmType final
}
};
+/// Represents the result of substituting a set of types as a template argument
+/// that needs to be expanded later.
+///
+/// These types are always dependent and produced depending on the situations:
+///
https://github.com/zyn0217 updated
https://github.com/llvm/llvm-project/pull/139436
>From 1756fbcd874097fdea256c2c5986810a011eafed Mon Sep 17 00:00:00 2001
From: Younan Zhang
Date: Sun, 11 May 2025 12:54:12 +0800
Subject: [PATCH 1/3] [Clang] Stop looking for DC from dependent friend
specializa
https://github.com/zyn0217 requested changes to this pull request.
https://github.com/llvm/llvm-project/pull/106730
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@@ -1666,6 +1685,21 @@ namespace {
return inherited::TransformTemplateArgument(Input, Output, Uneval);
}
+using TreeTransform::TransformTemplateSpecializationType;
+QualType
+TransformTemplateSpecializationType(TypeLocBuilder &TLB,
+
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