https://github.com/DenisGZM updated
https://github.com/llvm/llvm-project/pull/133107
>From c46eda67cd7434dcce5c1f29125a940dc4ff64ba Mon Sep 17 00:00:00 2001
From: Denis Gerasimov <deng...@gmail.com>
Date: Wed, 26 Mar 2025 18:29:38 +0300
Subject: [PATCH 1/2] [CLANG] Enable alignas after GNU attributes
---
clang/lib/Parse/ParseStmt.cpp | 5 +++++
clang/test/SemaCUDA/cuda-attr-order.cu | 15 +++++++++++++++
2 files changed, 20 insertions(+)
create mode 100644 clang/test/SemaCUDA/cuda-attr-order.cu
diff --git a/clang/lib/Parse/ParseStmt.cpp b/clang/lib/Parse/ParseStmt.cpp
index 150b2879fc94f..33b9f63bcfa08 100644
--- a/clang/lib/Parse/ParseStmt.cpp
+++ b/clang/lib/Parse/ParseStmt.cpp
@@ -296,6 +296,11 @@ StmtResult
Parser::ParseStatementOrDeclarationAfterAttributes(
goto Retry;
}
+ case tok::kw_alignas: {
+ ParseAlignmentSpecifier(CXX11Attrs);
+ goto Retry;
+ }
+
case tok::kw_template: {
SourceLocation DeclEnd;
ParseTemplateDeclarationOrSpecialization(DeclaratorContext::Block, DeclEnd,
diff --git a/clang/test/SemaCUDA/cuda-attr-order.cu
b/clang/test/SemaCUDA/cuda-attr-order.cu
new file mode 100644
index 0000000000000..d3bf5b014d1c6
--- /dev/null
+++ b/clang/test/SemaCUDA/cuda-attr-order.cu
@@ -0,0 +1,15 @@
+// Verify that we can parse a simple CUDA file with different attributes order.
+// RUN: %clang_cc1 "-triple" "nvptx-nvidia-cuda" -fsyntax-only -verify %s
+// expected-no-diagnostics
+#include "Inputs/cuda.h"
+
+struct alignas(16) float4 {
+ float x, y, z, w;
+};
+
+__attribute__((device)) float func() {
+ __shared__ alignas(alignof(float4)) float As[4][4]; // Both combinations
+ alignas(alignof(float4)) __shared__ float Bs[4][4]; // must be legal
+
+ return As[0][0] + Bs[0][0];
+}
>From 517ba9e99f06c23ec675f5bf808b84273f5b409d Mon Sep 17 00:00:00 2001
From: Denis Gerasimov <deng...@gmail.com>
Date: Fri, 28 Mar 2025 18:27:49 +0300
Subject: [PATCH 2/2] [CLANG] Enable cxx11 attributes after gnu attributes in
ParseCXXClassMemberDeclaration
---
clang/lib/Parse/ParseDeclCXX.cpp | 7 +++++--
clang/test/AST/ast-dump-color.cpp | 2 +-
clang/test/Index/annotate-attribute.cpp | 2 +-
clang/test/Parser/cxx0x-attributes.cpp | 6 ++++++
clang/test/SemaCXX/warn-thread-safety-analysis.cpp | 8 ++++----
5 files changed, 17 insertions(+), 8 deletions(-)
diff --git a/clang/lib/Parse/ParseDeclCXX.cpp b/clang/lib/Parse/ParseDeclCXX.cpp
index 51fe0663a8d1a..42db9ceb89a2b 100644
--- a/clang/lib/Parse/ParseDeclCXX.cpp
+++ b/clang/lib/Parse/ParseDeclCXX.cpp
@@ -3035,10 +3035,13 @@ Parser::DeclGroupPtrTy
Parser::ParseCXXClassMemberDeclaration(
}
ParsedAttributes DeclSpecAttrs(AttrFactory);
- MaybeParseMicrosoftAttributes(DeclSpecAttrs);
-
// Hold late-parsed attributes so we can attach a Decl to them later.
LateParsedAttrList CommonLateParsedAttrs;
+ while (MaybeParseCXX11Attributes(DeclAttrs) ||
+ MaybeParseGNUAttributes(DeclSpecAttrs, &CommonLateParsedAttrs)) {
+ }
+
+ MaybeParseMicrosoftAttributes(DeclSpecAttrs);
// decl-specifier-seq:
// Parse the common declaration-specifiers piece.
diff --git a/clang/test/AST/ast-dump-color.cpp
b/clang/test/AST/ast-dump-color.cpp
index 87797f6bffc5b..2bd9ab7c3c841 100644
--- a/clang/test/AST/ast-dump-color.cpp
+++ b/clang/test/AST/ast-dump-color.cpp
@@ -91,7 +91,7 @@ struct Invalid {
//CHECK: {{^}}[[Blue]]| `-[[RESET]][[MAGENTA]]DeclRefExpr[[RESET]][[Yellow]]
0x{{[0-9a-fA-F]*}}[[RESET]] <[[Yellow]]col:40[[RESET]]> [[Green]]'class
Mutex':'Mutex'[[RESET]][[Cyan]] lvalue[[RESET]][[Cyan]][[RESET]]
[[GREEN]]Var[[RESET]][[Yellow]] 0x{{[0-9a-fA-F]*}}[[RESET]][[CYAN]]
'mu1'[[RESET]] [[Green]]'class Mutex':'Mutex'[[RESET]]
non_odr_use_unevaluated{{$}}
//CHECK: {{^}}[[Blue]]|-[[RESET]][[GREEN]]CXXRecordDecl[[RESET]][[Yellow]]
0x{{[0-9a-fA-F]*}}[[RESET]] <[[Yellow]]line:28:1[[RESET]],
[[Yellow]]line:30:1[[RESET]]> [[Yellow]]line:28:8[[RESET]] struct[[CYAN]]
Invalid[[RESET]] definition
//CHECK: {{^}}[[Blue]]| |-[[RESET]][[GREEN]]CXXRecordDecl[[RESET]][[Yellow]]
0x{{[0-9a-fA-F]*}}[[RESET]] <[[Yellow]]col:1[[RESET]],
[[Yellow]]col:8[[RESET]]> [[Yellow]]col:8[[RESET]] implicit referenced
struct[[CYAN]] Invalid[[RESET]]
-//CHECK: {{^}}[[Blue]]|
|-[[RESET]][[GREEN]]CXXConstructorDecl[[RESET]][[Yellow]]
0x{{[0-9a-fA-F]*}}[[RESET]] <[[Yellow]]line:29:3[[RESET]],
[[Yellow]]col:42[[RESET]]> [[Yellow]]col:29[[RESET]] invalid[[CYAN]]
Invalid[[RESET]] [[Green]]'void (int)'[[RESET]]
+//CHECK: {{^}}[[Blue]]|
|-[[RESET]][[GREEN]]CXXConstructorDecl[[RESET]][[Yellow]]
0x{{[0-9a-fA-F]*}}[[RESET]] <[[Yellow]]line:29:29[[RESET]],
[[Yellow]]col:42[[RESET]]> [[Yellow]]col:29[[RESET]] invalid[[CYAN]]
Invalid[[RESET]] [[Green]]'void (int)'[[RESET]]
//CHECK: {{^}}[[Blue]]| | |-[[RESET]][[GREEN]]ParmVarDecl[[RESET]][[Yellow]]
0x{{[0-9a-fA-F]*}}[[RESET]] <[[Yellow]]col:37[[RESET]], [[Yellow]]<invalid
sloc>[[RESET]]> [[Yellow]]col:42[[RESET]] invalid [[Green]]'int'[[RESET]]
//CHECK: {{^}}[[Blue]]| | `-[[RESET]][[BLUE]]NoInlineAttr[[RESET]][[Yellow]]
0x{{[0-9a-fA-F]*}}[[RESET]] <[[Yellow]]col:18[[RESET]]>
//CHECK: {{^}}[[Blue]]|
|-[[RESET]][[GREEN]]CXXConstructorDecl[[RESET]][[Yellow]]
0x{{[0-9a-fA-F]*}}[[RESET]] <[[Yellow]]line:28:8[[RESET]]>
[[Yellow]]col:8[[RESET]] implicit used constexpr[[CYAN]] Invalid[[RESET]]
[[Green]]'void () noexcept'[[RESET]] inline
diff --git a/clang/test/Index/annotate-attribute.cpp
b/clang/test/Index/annotate-attribute.cpp
index bf415fc8fe64d..6b5b0f1eab7d4 100644
--- a/clang/test/Index/annotate-attribute.cpp
+++ b/clang/test/Index/annotate-attribute.cpp
@@ -24,7 +24,7 @@ int templateFunction(T value)
__attribute__((annotate("works")));
// CHECK: ClassDecl=Test:3:7 (Definition) Extent=[3:1 - 17:2]
// CHECK-NEXT: CXXAccessSpecifier=:4:1 (Definition) Extent=[4:1 - 4:8]
-// CHECK-NEXT: CXXMethod=aMethod:5:51 Extent=[5:3 - 5:60]
+// CHECK-NEXT: CXXMethod=aMethod:5:51 Extent=[5:46 - 5:60]
// CHECK-NEXT: attribute(annotate)=spiffy_method Extent=[5:18 - 5:43]
// CHECK-NEXT: CXXAccessSpecifier=:7:1 (Definition) Extent=[7:1 - 7:43]
// CHECK-NEXT: attribute(annotate)=works Extent=[7:23 - 7:40]
diff --git a/clang/test/Parser/cxx0x-attributes.cpp
b/clang/test/Parser/cxx0x-attributes.cpp
index fad3010c98b9c..0ff5afa43b8a6 100644
--- a/clang/test/Parser/cxx0x-attributes.cpp
+++ b/clang/test/Parser/cxx0x-attributes.cpp
@@ -71,6 +71,12 @@ namespace test_misplacement {
[[]] union union_attr2; //expected-error{{misplaced attributes}}
[[]] enum E2 { }; //expected-error{{misplaced attributes}}
}
+struct S1 { __attribute__((deprecated)) alignas(16) int x; }; // expected-none
+class C1 { __attribute__((deprecated)) alignas(16) int x; }; // expected-none
+
+void fn_with_decl() {
+ __attribute__((deprecated)) alignas(16) int x; // expected-none
+}
// Checks attributes placed at wrong syntactic locations of class specifiers.
class [[]] [[]]
diff --git a/clang/test/SemaCXX/warn-thread-safety-analysis.cpp
b/clang/test/SemaCXX/warn-thread-safety-analysis.cpp
index ac3ca5e0c12a8..ed7821b2affe4 100644
--- a/clang/test/SemaCXX/warn-thread-safety-analysis.cpp
+++ b/clang/test/SemaCXX/warn-thread-safety-analysis.cpp
@@ -2434,10 +2434,10 @@ class Foo {
namespace WarnNoDecl {
class Foo {
- void foo(int a); __attribute__(( // \
- // expected-warning {{declaration does not declare anything}}
- exclusive_locks_required(a))); // \
- // expected-warning {{attribute exclusive_locks_required ignored}}
+ void foo(int a); __attribute__((
+ exclusive_locks_required(a))); // expected-warning {{declaration does not
declare anything}} \
+ // expected-warning {{attribute
exclusive_locks_required ignored}}
+
};
} // end namespace WarnNoDecl
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