@@ -547,6 +547,15 @@ static void DoEmitAvailabilityWarning(Sema &S,
AvailabilityResult K,
return;
}
case AR_Deprecated:
+// Suppress -Wdeprecated-declarations in purely implicit special-member
functions.
+if (auto *MD = dyn_cast_if_present(S.getCurFunctionDecl
https://github.com/cor3ntin closed
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cor3ntin wrote:
> @cor3ntin I think Apple Clang still complicates version detection, and we
> can't use __has_builtin, because that's returned true for versions of Clang
> where it's "broken" from libc++'s perspective.
`__builtin_is_cpp_trivially_relocatable` is new in 21, it was never shipped
https://github.com/cor3ntin updated
https://github.com/llvm/llvm-project/pull/147514
>From 17b593283e1a95ca12ee314140910b3f634a2a33 Mon Sep 17 00:00:00 2001
From: Corentin Jabot
Date: Tue, 8 Jul 2025 14:34:16 +0200
Subject: [PATCH 1/3] [Clang] Fix crash on `void{}`
Caused by an incorrect asser
https://github.com/cor3ntin updated
https://github.com/llvm/llvm-project/pull/147498
>From 90648944f6e27de2b150f33887798c221bbb19b4 Mon Sep 17 00:00:00 2001
From: Corentin Jabot
Date: Tue, 8 Jul 2025 11:53:21 +0200
Subject: [PATCH 1/2] [Clang] Better handle overload of explicit object member
f
https://github.com/cor3ntin updated
https://github.com/llvm/llvm-project/pull/147275
>From 346ac892d7575ac779295b9db11bc895f37f160e Mon Sep 17 00:00:00 2001
From: Corentin Jabot
Date: Mon, 7 Jul 2025 12:41:53 +0200
Subject: [PATCH 1/4] [Clang] Do not mark ambiguous specialization invalid.
When
@@ -4111,7 +4111,10 @@ static ActionResult
getPatternForClassTemplateSpecialization(
if (Ambiguous) {
// Partial ordering did not produce a clear winner. Complain.
Inst.Clear();
- ClassTemplateSpec->setInvalidDecl();
+
+ if (!S.isS
https://github.com/cor3ntin updated
https://github.com/llvm/llvm-project/pull/147275
>From 346ac892d7575ac779295b9db11bc895f37f160e Mon Sep 17 00:00:00 2001
From: Corentin Jabot
Date: Mon, 7 Jul 2025 12:41:53 +0200
Subject: [PATCH 1/3] [Clang] Do not mark ambiguous specialization invalid.
When
https://github.com/cor3ntin updated
https://github.com/llvm/llvm-project/pull/147514
>From 4b536efe500f3b9099d1cf1a1a8775633e193249 Mon Sep 17 00:00:00 2001
From: Corentin Jabot
Date: Tue, 8 Jul 2025 14:34:16 +0200
Subject: [PATCH 1/3] [Clang] Fix crash on `void{}`
Caused by an incorrect asser
@@ -13,4 +13,7 @@ void f() {
void();
}
+// CHECK: define{{.*}} void @_ZN8GH1164401fEv()
cor3ntin wrote:
oups!
https://github.com/llvm/llvm-project/pull/147514
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https://github.com/cor3ntin updated
https://github.com/llvm/llvm-project/pull/147514
>From 4b536efe500f3b9099d1cf1a1a8775633e193249 Mon Sep 17 00:00:00 2001
From: Corentin Jabot
Date: Tue, 8 Jul 2025 14:34:16 +0200
Subject: [PATCH 1/2] [Clang] Fix crash on `void{}`
Caused by an incorrect asser
https://github.com/cor3ntin edited
https://github.com/llvm/llvm-project/pull/147275
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@@ -4111,7 +4111,10 @@ static ActionResult
getPatternForClassTemplateSpecialization(
if (Ambiguous) {
// Partial ordering did not produce a clear winner. Complain.
Inst.Clear();
- ClassTemplateSpec->setInvalidDecl();
+
+ if (!S.isS
@@ -5,3 +5,12 @@ void f()
// CHECK: store i32 0
int i{};
}
+
+
+namespace GH116440 {
+void f() {
+ void{};
+ void();
+}
cor3ntin wrote:
What do you want me to check? noting is emitted
https://github.com/llvm/llvm-project/pull/147514
___
@@ -547,6 +547,15 @@ static void DoEmitAvailabilityWarning(Sema &S,
AvailabilityResult K,
return;
}
case AR_Deprecated:
+// Suppress -Wdeprecated-declarations in purely implicit special-member
functions.
+if (auto *MD = dyn_cast_if_present(S.getCurFunctionDecl
https://github.com/cor3ntin created
https://github.com/llvm/llvm-project/pull/147514
Caused by an incorrect assertion.
Fixes #116440
>From 4b536efe500f3b9099d1cf1a1a8775633e193249 Mon Sep 17 00:00:00 2001
From: Corentin Jabot
Date: Tue, 8 Jul 2025 14:34:16 +0200
Subject: [PATCH] [Clang] Fix c
@@ -2208,15 +2208,27 @@ static bool
interp__builtin_is_within_lifetime(InterpState &S, CodePtr OpPC,
if (Ptr.isOnePastEnd())
return Error(1);
- bool Result = true;
+ bool Result = Ptr.getLifetime() != Lifetime::Ended;
if (!Ptr.isActive()) {
Result = false;
cor3ntin wrote:
Thanks!
https://github.com/llvm/llvm-project/pull/144220
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https://github.com/cor3ntin approved this pull request.
Thanks!
https://github.com/llvm/llvm-project/pull/147463
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https://github.com/cor3ntin created
https://github.com/llvm/llvm-project/pull/147498
```cpp
struct A {
constexpr int f() const { return 1; } // #1
};
struct B : A {
using A::f;
constexpr int f(this A) { return 2; }
};
static_assert(B{}.f() == 1);
```
In the above scenario, we fai
cor3ntin wrote:
This change needs a release note.
Please add an entry to `clang/docs/ReleaseNotes.rst` in the section the most
adapted to the change, and referencing any Github issue this change fixes.
Thanks!
https://github.com/llvm/llvm-project/pull/147363
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cor3ntin wrote:
There is divergence between C and C++, I sent a mail to core
https://lists.isocpp.org/liaison/2025/07/1549.php
https://github.com/llvm/llvm-project/pull/147308
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https://github.com/llvm/llvm-project/pull/147046
>From a54b4f8120460c4374422c9847c22aed0ef8665f Mon Sep 17 00:00:00 2001
From: Corentin Jabot
Date: Fri, 4 Jul 2025 12:16:02 +0200
Subject: [PATCH 1/2] [Clang] Correctly handle taking the address of an
explicit
@@ -477,3 +477,8 @@ namespace P2361 {
}
alignas(int) struct AlignAsAttribute {}; // expected-error {{misplaced
attributes; expected attributes here}}
+
+namespace GH147217 {
+ [[clang::annotate(#)]] void a(); // expected-error {{'#' is not allowed
in attribute argument
@@ -488,6 +488,13 @@ unsigned Parser::ParseAttributeArgsCommon(
bool AttributeHasVariadicIdentifierArg =
attributeHasVariadicIdentifierArg(*AttrName, Form.getSyntax(),
ScopeName);
+ if (Tok.is(tok::hash) || Tok.is(tok::hashhash)) {
cor3ntin wrote:
W
cor3ntin wrote:
@kbrav Are you still working on this? @AaronBallman left a few comments
https://github.com/llvm/llvm-project/pull/127924
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https://github.com/llvm/llvm-project/pull/147275
>From 346ac892d7575ac779295b9db11bc895f37f160e Mon Sep 17 00:00:00 2001
From: Corentin Jabot
Date: Mon, 7 Jul 2025 12:41:53 +0200
Subject: [PATCH 1/2] [Clang] Do not mark ambiguous specialization invalid.
When
https://github.com/cor3ntin created
https://github.com/llvm/llvm-project/pull/147306
In some tentative parses, we would always consider `[` as the start of an
attribute - only `[[` should be.
Fixes #63880
>From b47ae00ae1971d0d57d2a4b5da1cf8f02a0c1194 Mon Sep 17 00:00:00 2001
From: Corentin J
https://github.com/cor3ntin updated
https://github.com/llvm/llvm-project/pull/147275
>From 346ac892d7575ac779295b9db11bc895f37f160e Mon Sep 17 00:00:00 2001
From: Corentin Jabot
Date: Mon, 7 Jul 2025 12:41:53 +0200
Subject: [PATCH] [Clang] Do not mark ambiguous specialization invalid.
When a s
https://github.com/cor3ntin closed
https://github.com/llvm/llvm-project/pull/147286
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https://github.com/cor3ntin approved this pull request.
I'm happy to approve as is then
https://github.com/llvm/llvm-project/pull/147028
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https://github.com/cor3ntin created
https://github.com/llvm/llvm-project/pull/147286
Reverts llvm/llvm-project#145220
This breaks CI when building the documentation
```
Included from
/home/runner/work/llvm-project/llvm-project/clang/docs/../include/clang/Basic/Diagnostic.td:74:
/home/runner/w
https://github.com/cor3ntin approved this pull request.
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@@ -248,7 +248,9 @@ C Language Changes
not valid in C++.
- The ``[[clang::assume()]]`` attribute is now correctly recognized in C. The
``__attribute__((assume()))`` form has always been supported, so the fix is
- specific to the attribute syntax used.
+ specific to the at
https://github.com/cor3ntin edited
https://github.com/llvm/llvm-project/pull/147213
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https://github.com/llvm/llvm-project/pull/147275
When a specialization was ambiguous, we would mark it as invalid, even if the
specialization occured in an immediate context.
This would subsequently lead to scenarios where invalid specialization produced
no
https://github.com/cor3ntin approved this pull request.
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https://github.com/cor3ntin commented:
Thanks for working on this
Did you try to use `!isUsable` instead of IsInvalid in
`ParseBaseSpecifier` ? I think that might be a simpler fix.
---
This change needs a release note.
Please add an entry to `clang/docs/ReleaseNotes.rst` in the section the mo
https://github.com/cor3ntin approved this pull request.
https://github.com/llvm/llvm-project/pull/147231
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https://github.com/llvm/llvm-project/pull/147154
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https://github.com/cor3ntin approved this pull request.
thanks. will you need us to merge that for you?
https://github.com/llvm/llvm-project/pull/146433
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@@ -158,9 +158,9 @@ class CXXOperatorCallExpr final : public CallExpr {
: getOperatorLoc();
}
- SourceLocation getBeginLoc() const { return Range.getBegin(); }
- SourceLocation getEndLoc() const { return Range.getEnd(); }
- SourceRange getSourceRange() cons
@@ -750,6 +750,8 @@ Bug Fixes in This Version
- Fixed an infinite recursion when checking constexpr destructors. (#GH141789)
- Fixed a crash when a malformed using declaration appears in a ``constexpr``
function. (#GH144264)
- Fixed a bug when use unicode character name in mac
https://github.com/cor3ntin commented:
LGTM but please give @AaronBallman a chance to comment, as this reverts a
previous patch of his (which I think was too clever)!
https://github.com/llvm/llvm-project/pull/147030
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cor3ntin wrote:
> but causes a crash ([example](https://godbolt.org/z/oo198z8Gh)). So I haven't
> added those cases, but left a `TODO`. Should I leave a `TODO: PR 146649`
> instead?
I opened [147046](https://github.com/llvm/llvm-project/pull/147046)
https://github.com/llvm/llvm-project/pul
https://github.com/cor3ntin closed
https://github.com/llvm/llvm-project/pull/146890
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https://github.com/llvm/llvm-project/pull/147046
>From a54b4f8120460c4374422c9847c22aed0ef8665f Mon Sep 17 00:00:00 2001
From: Corentin Jabot
Date: Fri, 4 Jul 2025 12:16:02 +0200
Subject: [PATCH] [Clang] Correctly handle taking the address of an explicit
obj
https://github.com/cor3ntin created
https://github.com/llvm/llvm-project/pull/147046
When implementing #93430, I failed to consider some cases involving function
templates.
```
struct A {
template
void a(this T self);
};
(&A::a)(A{});
```
This fixes that
>From a6a16e1ac8ed9324f6efb
https://github.com/cor3ntin approved this pull request.
https://github.com/llvm/llvm-project/pull/146960
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Thanks!
https://github.com/llvm/llvm-project/pull/147003
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@@ -1931,15 +1931,13 @@ Parser::ParseCXXCondition(StmtResult *InitStmt,
SourceLocation Loc,
return ParseCXXCondition(nullptr, Loc, CK, MissingOK);
}
-ExprResult Expr = [&] {
- EnterExpressionEvaluationContext Eval(
- Actions, Sema::ExpressionEvalua
https://github.com/cor3ntin updated
https://github.com/llvm/llvm-project/pull/146890
>From c138801c212f69f4dee83c7516e0e77eb876a9f0 Mon Sep 17 00:00:00 2001
From: Corentin Jabot
Date: Thu, 3 Jul 2025 14:26:59 +0200
Subject: [PATCH 1/4] [Clang] Correctly handle allocations in the condition of
a
https://github.com/cor3ntin closed
https://github.com/llvm/llvm-project/pull/146857
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https://github.com/llvm/llvm-project/pull/146890
>From c138801c212f69f4dee83c7516e0e77eb876a9f0 Mon Sep 17 00:00:00 2001
From: Corentin Jabot
Date: Thu, 3 Jul 2025 14:26:59 +0200
Subject: [PATCH 1/3] [Clang] Correctly handle allocations in the condition of
a
@@ -1931,15 +1931,13 @@ Parser::ParseCXXCondition(StmtResult *InitStmt,
SourceLocation Loc,
return ParseCXXCondition(nullptr, Loc, CK, MissingOK);
}
-ExprResult Expr = [&] {
- EnterExpressionEvaluationContext Eval(
- Actions, Sema::ExpressionEvalua
@@ -20629,6 +20629,9 @@ Sema::ConditionResult Sema::ActOnCondition(Scope *S,
SourceLocation Loc,
case ConditionKind::ConstexprIf:
Cond = CheckBooleanCondition(Loc, SubExpr, true);
+assert(isa(Cond.get()) &&
cor3ntin wrote:
Actually the assert was i
https://github.com/cor3ntin updated
https://github.com/llvm/llvm-project/pull/146890
>From c138801c212f69f4dee83c7516e0e77eb876a9f0 Mon Sep 17 00:00:00 2001
From: Corentin Jabot
Date: Thu, 3 Jul 2025 14:26:59 +0200
Subject: [PATCH 1/2] [Clang] Correctly handle allocations in the condition of
a
@@ -1931,15 +1931,13 @@ Parser::ParseCXXCondition(StmtResult *InitStmt,
SourceLocation Loc,
return ParseCXXCondition(nullptr, Loc, CK, MissingOK);
}
-ExprResult Expr = [&] {
- EnterExpressionEvaluationContext Eval(
- Actions, Sema::ExpressionEvalua
@@ -20629,6 +20629,9 @@ Sema::ConditionResult Sema::ActOnCondition(Scope *S,
SourceLocation Loc,
case ConditionKind::ConstexprIf:
Cond = CheckBooleanCondition(Loc, SubExpr, true);
+assert(isa(Cond.get()) &&
cor3ntin wrote:
Good catch!
https://gith
https://github.com/cor3ntin created
https://github.com/llvm/llvm-project/pull/146890
Deal with the following scenario
```cpp
struct S {
char* c = new char;
constexpr ~S() {
delete c;
}
};
if constexpr((S{}, true)){};
```
There were two issues
- We need to produce a full ex
https://github.com/cor3ntin updated
https://github.com/llvm/llvm-project/pull/146857
>From 4ee72df191e9792be38195b00b0f6422de3a767a Mon Sep 17 00:00:00 2001
From: Corentin Jabot
Date: Thu, 3 Jul 2025 13:00:46 +0200
Subject: [PATCH 1/2] [Clang] Fix evaluation context of lambdas appearing in
dis
https://github.com/cor3ntin created
https://github.com/llvm/llvm-project/pull/146857
Fixes 2 bugs reported in #146063
- The body of a lambda appearing in a discarded statement was sometimes
considered discarded itself
- A lambda conversion operator that was not odr-used was sometimes not def
cor3ntin wrote:
Can we add -verify to the runline (+ expected-no-diagnostics)?
https://github.com/llvm/llvm-project/pull/146829
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https://github.com/cor3ntin approved this pull request.
https://github.com/llvm/llvm-project/pull/146808
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https://github.com/cor3ntin approved this pull request.
https://github.com/llvm/llvm-project/pull/146811
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cor3ntin wrote:
@ilya-biryukov Great to hear. Please ping me when you are ready, I'll do my
best to prioritize this
https://github.com/llvm/llvm-project/pull/106730
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https://github.com/llvm/llvm-project/pull/143667
>From b54f67ad5755bff3959369f8cd81022abd5dfe22 Mon Sep 17 00:00:00 2001
From: Corentin Jabot
Date: Wed, 2 Jul 2025 15:55:41 +0200
Subject: [PATCH] Diagnose all dereferences of null pointers
---
clang/docs/Rel
cor3ntin wrote:
> Per [CWG2823](https://cplusplus.github.io/CWG/issues/2823.html), would it be
> more meaningful to diagnose dereferencing null pointers?
Yes, done!
https://github.com/llvm/llvm-project/pull/143667
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cor3ntin wrote:
How does completion handle things like this?
```cpp
struct S {
void f(this S, int);
};
int main() {
(&S::f)(S{}, 0);
}
```
https://github.com/llvm/llvm-project/pull/146649
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cor3ntin wrote:
Let's go with @frederick-vs-ja if that makes people happier!
https://github.com/llvm/llvm-project/pull/143839
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@@ -2403,3 +2403,75 @@ SourceManagerForFile::SourceManagerForFile(StringRef
FileName,
assert(ID.isValid());
SourceMgr->setMainFileID(ID);
}
+
+StringRef
+SourceManager::getNameForDiagnostic(StringRef Filename,
+const DiagnosticOptions &O
cor3ntin wrote:
Adding @hubert-reinterpretcast
I think some / most of the tests are unrelated to the paper, but there seem to
be sufficient tests in
62a16d5e2069542351c164aa0e3b216dc8e153c4
https://github.com/llvm/llvm-project/pull/144214
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https://github.com/cor3ntin approved this pull request.
Can you add a changelog entry? LGTM otherwiswe
https://github.com/llvm/llvm-project/pull/144970
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@@ -35,6 +35,7 @@ namespace clang {
class TextDiagnostic : public DiagnosticRenderer {
raw_ostream &OS;
const Preprocessor *PP;
+ llvm::StringMap> SimplifiedFileNameCache;
cor3ntin wrote:
Is this used?
https://github.com/llvm/llvm-project/pull/143520
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@@ -2403,3 +2403,75 @@ SourceManagerForFile::SourceManagerForFile(StringRef
FileName,
assert(ID.isValid());
SourceMgr->setMainFileID(ID);
}
+
+StringRef
+SourceManager::getNameForDiagnostic(StringRef Filename,
+const DiagnosticOptions &O
@@ -1062,6 +1062,10 @@ def err_constexpr_main : Error<
"'main' is not allowed to be declared %select{constexpr|consteval}0">;
def err_deleted_main : Error<"'main' is not allowed to be deleted">;
def err_mainlike_template_decl : Error<"%0 cannot be a template">;
+def warn_main
cor3ntin wrote:
There are still a few test failures, including in libc++, but I think we are
are at the stage where this could benefit from more eyes
https://github.com/llvm/llvm-project/pull/141776
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https://github.com/cor3ntin ready_for_review
https://github.com/llvm/llvm-project/pull/141776
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https://github.com/cor3ntin edited
https://github.com/llvm/llvm-project/pull/141776
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https://github.com/cor3ntin approved this pull request.
https://github.com/llvm/llvm-project/pull/145755
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https://github.com/cor3ntin approved this pull request.
approving this because it's a nice code cleaning, however defaulting operator=
does not protect against self assignment afaik
https://github.com/llvm/llvm-project/pull/145743
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https://github.com/cor3ntin approved this pull request.
https://github.com/llvm/llvm-project/pull/145356
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https://github.com/cor3ntin closed
https://github.com/llvm/llvm-project/pull/145655
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https://github.com/cor3ntin edited
https://github.com/llvm/llvm-project/pull/144161
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https://github.com/cor3ntin updated
https://github.com/llvm/llvm-project/pull/143667
>From 39b9a098f086958e4f71cce3126b27168c74e0e2 Mon Sep 17 00:00:00 2001
From: Corentin Jabot
Date: Mon, 9 Jun 2025 17:22:06 +0200
Subject: [PATCH 1/7] [Clang] Diagnose forming references to nullptr
Per [decl.r
@@ -644,6 +644,11 @@ Improvements to Clang's diagnostics
#GH69470, #GH59391, #GH58172, #GH46215, #GH45915, #GH45891, #GH44490,
#GH36703, #GH32903, #GH23312, #GH69874.
+- Enhanced `__is_standard_layout` and `std::is_standard_layout` diagnostics to
+ provide more detailed i
https://github.com/cor3ntin edited
https://github.com/llvm/llvm-project/pull/141776
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https://github.com/cor3ntin approved this pull request.
I am happy with that if @AaronBallman is
https://github.com/llvm/llvm-project/pull/145044
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@@ -644,6 +644,10 @@ Improvements to Clang's diagnostics
#GH69470, #GH59391, #GH58172, #GH46215, #GH45915, #GH45891, #GH44490,
#GH36703, #GH32903, #GH23312, #GH69874.
+- Clang now gives pinpointed diagnostics for std::is_empty
failures—emitting a “not empty” error
+ plu
@@ -1787,6 +1788,10 @@ def note_unsatisfied_trait_reason
"%NonReplaceableField{has a non-replaceable member %1 of type %2}|"
"%NTCBase{has a non-trivially-copyable base %1}|"
"%NTCField{has a non-trivially-copyable member %1 of type %2}|"
+
https://github.com/cor3ntin edited
https://github.com/llvm/llvm-project/pull/145044
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