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This also removes the `-fdouble-square-bracket-attributes` command line flag,
which seems to not be used anywhere. At least a code search exclusively found
mentions of it in documentation:
https://sourcegraph.com/search?q=context:global+-fdouble-square-bracket-attributes+-file:clang/*+-file:test/Sema/*+-file:test/Parser/*+-file:test/AST/*+-file:test/Preprocessor/*+-file:test/Misc/*+archived:yes&patternType=standard&sm=0&groupBy=repo
Repository:
rG LLVM Github Monorepo
https://reviews.llvm.org/D151683
Files:
clang/docs/LanguageExtensions.rst
clang/include/clang/Basic/DiagnosticParseKinds.td
clang/include/clang/Basic/LangOptions.def
clang/include/clang/Driver/Options.td
clang/include/clang/Parse/Parser.h
clang/lib/Basic/Attributes.cpp
clang/lib/Driver/ToolChains/Clang.cpp
clang/lib/Lex/Lexer.cpp
clang/lib/Parse/ParseDecl.cpp
clang/lib/Parse/ParseDeclCXX.cpp
clang/test/AST/ast-dump-attr.m
clang/test/AST/ast-dump-c-attr.c
clang/test/AST/attr-annotate-type.c
clang/test/CodeGen/attr-btf_type_tag-func.c
clang/test/CodeGen/attr-btf_type_tag-var.c
clang/test/Frontend/noderef.c
clang/test/OpenMP/assumes_messages_attr.c
clang/test/OpenMP/openmp_attribute_compat.cpp
clang/test/Parser/asm.c
clang/test/Parser/c2x-attributes.c
clang/test/Parser/c2x-attributes.m
clang/test/Parser/cxx-decl.cpp
clang/test/Parser/objc-attr.m
clang/test/ParserHLSL/group_shared.hlsl
clang/test/Preprocessor/has_c_attribute.c
clang/test/Sema/annotate-type.c
clang/test/Sema/annotate.c
clang/test/Sema/attr-availability-square-brackets.c
clang/test/Sema/attr-external-source-symbol-cxx.cpp
clang/test/Sema/attr-external-source-symbol.c
clang/test/Sema/attr-likelihood.c
clang/test/Sema/attr-objc-bridge-related.m
clang/test/Sema/attr-regparm.c
clang/test/Sema/attr-type-safety.c
clang/test/Sema/c2x-noreturn.c
clang/test/Sema/internal_linkage.c
clang/test/Sema/matrix-type-builtins.c
clang/test/Sema/neon-vector-types.c
clang/test/Sema/overload-arm-mve.c
clang/test/Sema/overloadable.c
clang/test/Sema/vector-gcc-compat.c
clang/test/SemaCXX/attr-cxx-disabled.cpp
clang/test/SemaObjC/attr-objc-gc.m
clang/unittests/AST/AttrTest.cpp
clang/utils/TableGen/ClangAttrEmitter.cpp
lldb/source/Plugins/ExpressionParser/Clang/ClangExpressionParser.cpp
Index: lldb/source/Plugins/ExpressionParser/Clang/ClangExpressionParser.cpp
===================================================================
--- lldb/source/Plugins/ExpressionParser/Clang/ClangExpressionParser.cpp
+++ lldb/source/Plugins/ExpressionParser/Clang/ClangExpressionParser.cpp
@@ -575,7 +575,6 @@
// FIXME: We should ask the driver for the appropriate default flags.
lang_opts.GNUMode = true;
lang_opts.GNUKeywords = true;
- lang_opts.DoubleSquareBracketAttributes = true;
lang_opts.CPlusPlus11 = true;
// The Darwin libc expects this macro to be set.
Index: clang/utils/TableGen/ClangAttrEmitter.cpp
===================================================================
--- clang/utils/TableGen/ClangAttrEmitter.cpp
+++ clang/utils/TableGen/ClangAttrEmitter.cpp
@@ -3387,14 +3387,10 @@
// If this is the C++11 variety, also add in the LangOpts test.
if (Variety == "CXX11")
Test += " && LangOpts.CPlusPlus11";
- else if (Variety == "C2x")
- Test += " && LangOpts.DoubleSquareBracketAttributes";
} else if (Variety == "CXX11")
// C++11 mode should be checked against LangOpts, which is presumed to be
// present in the caller.
Test = "LangOpts.CPlusPlus11";
- else if (Variety == "C2x")
- Test = "LangOpts.DoubleSquareBracketAttributes";
std::string TestStr = !Test.empty()
? Test + " ? " + llvm::itostr(Version) + " : 0"
Index: clang/unittests/AST/AttrTest.cpp
===================================================================
--- clang/unittests/AST/AttrTest.cpp
+++ clang/unittests/AST/AttrTest.cpp
@@ -157,7 +157,7 @@
AST = buildASTFromCodeWithArgs(R"c(
__auto_type [[clang::annotate_type("auto")]] auto_var = 1;
)c",
- {"-fdouble-square-bracket-attributes"},
+ {},
"input.c");
{
Index: clang/test/SemaObjC/attr-objc-gc.m
===================================================================
--- clang/test/SemaObjC/attr-objc-gc.m
+++ clang/test/SemaObjC/attr-objc-gc.m
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -fsyntax-only -fdouble-square-bracket-attributes -verify %s
+// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -fsyntax-only -verify %s
static id __attribute((objc_gc(weak))) a;
static id __attribute((objc_gc(strong))) b;
Index: clang/test/SemaCXX/attr-cxx-disabled.cpp
===================================================================
--- clang/test/SemaCXX/attr-cxx-disabled.cpp
+++ clang/test/SemaCXX/attr-cxx-disabled.cpp
@@ -1,12 +1,5 @@
-// RUN: %clang_cc1 -fsyntax-only -fno-double-square-bracket-attributes -verify -pedantic -std=c++11 -DERRORS %s
-// RUN: %clang_cc1 -fsyntax-only -fdouble-square-bracket-attributes -verify -pedantic -std=c++11 %s
+// RUN: %clang_cc1 -fsyntax-only -verify -pedantic -std=c++11 -DERRORS %s
struct [[]] S {};
-#ifdef ERRORS
-// expected-error@-3 {{declaration of anonymous struct must be a definition}}
-// expected-warning@-4 {{declaration does not declare anything}}
-#else
// expected-no-diagnostics
-#endif
-
Index: clang/test/Sema/vector-gcc-compat.c
===================================================================
--- clang/test/Sema/vector-gcc-compat.c
+++ clang/test/Sema/vector-gcc-compat.c
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 %s -verify -fsyntax-only -fdouble-square-bracket-attributes -Weverything -Wno-unused-but-set-variable -triple x86_64-apple-darwin10
+// RUN: %clang_cc1 %s -verify -fsyntax-only -Weverything -Wno-unused-but-set-variable -triple x86_64-apple-darwin10
// Test the compatibility of clang's vector extensions with gcc's vector
// extensions for C. Notably &&, ||, ?: and ! are not available.
@@ -20,17 +20,14 @@
// Verify that we can use the [[]] spelling of the attribute.
// We intentionally use the same type alias name to check that both versions
// define the same type.
-// FIXME: Warnings are nuisance warnings due to the `-Weverything` flag, but
-// we shouldn't really be emitting them in C mode with the
-// `-fdouble-square-bracket-attributes` flag.
-typedef long long v2i64 [[gnu::vector_size(16)]]; // expected-warning{{C++11 attribute syntax is incompatible with C++98}}
-typedef int v2i32 [[gnu::vector_size(8)]]; // expected-warning{{C++11 attribute syntax is incompatible with C++98}}
+typedef long long v2i64 [[gnu::vector_size(16)]]; // expected-warning{{[[]] attributes are a C2x extension}}
+typedef int v2i32 [[gnu::vector_size(8)]]; // expected-warning{{[[]] attributes are a C2x extension}}
// Check various positions where the [[]] spelling can or cannot be used.
-[[gnu::vector_size(16)]] typedef long long v2i64; // expected-warning{{C++11 attribute syntax is incompatible with C++98}}
+[[gnu::vector_size(16)]] typedef long long v2i64; // expected-warning{{[[]] attributes are a C2x extension}}
typedef long long [[gnu::vector_size(16)]] v2i64_ignored;
// expected-warning@-1{{'vector_size' attribute ignored}}
- // expected-warning@-2{{C++11 attribute syntax is incompatible with C++98}}
+ // expected-warning@-2{{[[]] attributes are a C2x extension}}
// FIXME: Contrary to the error message that we emit, GCC does actually allow
// the attribute in the following position. Somewhat surprisingly, the attribute
// is applied not to the pointer but to the base type, i.e. this declaration has
@@ -38,10 +35,10 @@
typedef long long *[[gnu::vector_size(16)]] v2i64_doesnt_work;
// expected-error@-1{{invalid vector element type 'long long *'}}
// expected-warning@-2{{GCC does not allow the 'vector_size' attribute to be written on a type}}
- // expected-warning@-3{{C++11 attribute syntax is incompatible with C++98}}
+ // expected-warning@-3{{[[]] attributes are a C2x extension}}
// Verify that we can use the attribute outside of a typedef.
-static int v2i32_var [[gnu::vector_size(8)]]; // expected-warning{{C++11 attribute syntax is incompatible with C++98}}
+static int v2i32_var [[gnu::vector_size(8)]]; // expected-warning{{[[]] attributes are a C2x extension}}
void arithmeticTest(void);
void logicTest(void);
Index: clang/test/Sema/overloadable.c
===================================================================
--- clang/test/Sema/overloadable.c
+++ clang/test/Sema/overloadable.c
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 -fsyntax-only -fdouble-square-bracket-attributes -verify %s -Wincompatible-pointer-types -Wno-strict-prototypes
+// RUN: %clang_cc1 -fsyntax-only -verify %s -Wincompatible-pointer-types -Wno-strict-prototypes
int var __attribute__((overloadable)); // expected-error{{'overloadable' attribute only applies to functions}}
void bad_attr_target(int) [[clang::overloadable]]; // expected-error{{'overloadable' attribute cannot be applied to types}}
@@ -74,7 +74,7 @@
f1();
}
-// Validate that the invalid function doesn't stay overloadable.
+// Validate that the invalid function doesn't stay overloadable.
int __attribute__((overloadable)) invalid(); // expected-error{{'overloadable' function 'invalid' must have a prototype}}
int __attribute__((overloadable)) invalid(int); // expected-error{{redeclaration of 'invalid' must not have the 'overloadable' attribute}}
// expected-note@-2{{previous unmarked overload of function is here}}
Index: clang/test/Sema/overload-arm-mve.c
===================================================================
--- clang/test/Sema/overload-arm-mve.c
+++ clang/test/Sema/overload-arm-mve.c
@@ -1,5 +1,5 @@
-// RUN: %clang_cc1 -triple thumbv8.1m.main-none-none-eabi -target-feature +mve.fp -flax-vector-conversions=all -fdouble-square-bracket-attributes -Werror -emit-llvm -o - %s | FileCheck %s
-// RUN: %clang_cc1 -triple thumbv8.1m.main-none-none-eabi -target-feature +mve.fp -flax-vector-conversions=all -fdouble-square-bracket-attributes -verify -fsyntax-only -DERROR_CHECK %s
+// RUN: %clang_cc1 -triple thumbv8.1m.main-none-none-eabi -target-feature +mve.fp -flax-vector-conversions=all -Werror -emit-llvm -o - %s | FileCheck %s
+// RUN: %clang_cc1 -triple thumbv8.1m.main-none-none-eabi -target-feature +mve.fp -flax-vector-conversions=all -verify -fsyntax-only -DERROR_CHECK %s
typedef signed short int16_t;
typedef signed int int32_t;
Index: clang/test/Sema/neon-vector-types.c
===================================================================
--- clang/test/Sema/neon-vector-types.c
+++ clang/test/Sema/neon-vector-types.c
@@ -1,5 +1,5 @@
-// RUN: %clang_cc1 %s -triple armv7 -target-feature +neon -fsyntax-only -fdouble-square-bracket-attributes -verify
-// RUN: %clang_cc1 %s -triple armv8 -target-feature +neon -fsyntax-only -fdouble-square-bracket-attributes -verify
+// RUN: %clang_cc1 %s -triple armv7 -target-feature +neon -fsyntax-only -verify
+// RUN: %clang_cc1 %s -triple armv8 -target-feature +neon -fsyntax-only -verify
typedef float float32_t;
typedef signed char poly8_t;
Index: clang/test/Sema/matrix-type-builtins.c
===================================================================
--- clang/test/Sema/matrix-type-builtins.c
+++ clang/test/Sema/matrix-type-builtins.c
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 %s -fenable-matrix -fdouble-square-bracket-attributes -pedantic -verify -triple=x86_64-apple-darwin9
+// RUN: %clang_cc1 %s -fenable-matrix -pedantic -verify -triple=x86_64-apple-darwin9
typedef float sx5x10_t __attribute__((matrix_type(5, 10)));
typedef int ix3x2_t __attribute__((matrix_type(3, 2)));
@@ -8,17 +8,17 @@
// Verify that we can use the [[]] spelling of the attribute.
// We intentionally use the same type alias name to check that both versions
// define the same type.
-typedef float [[clang::matrix_type(5, 10)]] sx5x10_t;
-typedef int [[clang::matrix_type(3, 2)]] ix3x2_t;
-[[clang::matrix_type(5, 10)]] typedef float sx5x10_t;
+typedef float [[clang::matrix_type(5, 10)]] sx5x10_t; // expected-warning {{[[]] attributes are a C2x extension}}
+typedef int [[clang::matrix_type(3, 2)]] ix3x2_t; // expected-warning {{[[]] attributes are a C2x extension}}
+[[clang::matrix_type(5, 10)]] typedef float sx5x10_t; // expected-warning {{[[]] attributes are a C2x extension}}
// expected-warning@-1 {{applying attribute 'matrix_type' to a declaration is deprecated; apply it to the type instead}}
-[[clang::matrix_type(3, 2)]] typedef int ix3x2_t;
+[[clang::matrix_type(3, 2)]] typedef int ix3x2_t; // expected-warning {{[[]] attributes are a C2x extension}}
// expected-warning@-1 {{applying attribute 'matrix_type' to a declaration is deprecated; apply it to the type instead}}
// Attribute may not be used outside typedefs.
-[[clang::matrix_type(3, 2)]] int ix3x2_var;
+[[clang::matrix_type(3, 2)]] int ix3x2_var; // expected-warning {{[[]] attributes are a C2x extension}}
// expected-error@-1 {{'matrix_type' attribute only applies to typedefs}}
-int [[clang::matrix_type(3, 2)]] ix3x2_var;
+int [[clang::matrix_type(3, 2)]] ix3x2_var; // expected-warning {{[[]] attributes are a C2x extension}}
// expected-error@-1 {{'matrix_type' attribute only applies to typedefs}}
void transpose(sx5x10_t a, ix3x2_t b, dx3x3 c, int *d, int e) {
Index: clang/test/Sema/internal_linkage.c
===================================================================
--- clang/test/Sema/internal_linkage.c
+++ clang/test/Sema/internal_linkage.c
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 -fsyntax-only -verify -fdouble-square-bracket-attributes %s
+// RUN: %clang_cc1 -fsyntax-only -verify %s
int var __attribute__((internal_linkage));
int var2 __attribute__((internal_linkage,common)); // expected-error{{'common' and 'internal_linkage' attributes are not compatible}} \
Index: clang/test/Sema/c2x-noreturn.c
===================================================================
--- clang/test/Sema/c2x-noreturn.c
+++ clang/test/Sema/c2x-noreturn.c
@@ -1,7 +1,7 @@
// RUN: %clang_cc1 -verify=all,c2x -std=c2x -fsyntax-only %s
-// RUN: %clang_cc1 -verify=all -std=c17 -fdouble-square-bracket-attributes -fsyntax-only %s
+// RUN: %clang_cc1 -verify=all -std=c17 -fsyntax-only %s
// RUN: %clang_cc1 -verify=none -Wno-deprecated-attributes -D_CLANG_DISABLE_CRT_DEPRECATION_WARNINGS -std=c2x -fsyntax-only %s
-// RUN: %clang_cc1 -verify=none -Wno-deprecated-attributes -D_CLANG_DISABLE_CRT_DEPRECATION_WARNINGS -std=c17 -fdouble-square-bracket-attributes -fsyntax-only %s
+// RUN: %clang_cc1 -verify=none -Wno-deprecated-attributes -D_CLANG_DISABLE_CRT_DEPRECATION_WARNINGS -std=c17 -fsyntax-only %s
// none-no-diagnostics
// Test preprocessor functionality.
Index: clang/test/Sema/attr-type-safety.c
===================================================================
--- clang/test/Sema/attr-type-safety.c
+++ clang/test/Sema/attr-type-safety.c
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 -fsyntax-only -fdouble-square-bracket-attributes -verify %s
+// RUN: %clang_cc1 -fsyntax-only -verify %s
struct A {};
@@ -42,4 +42,3 @@
[[clang::pointer_with_type_tag(a,1,2)]] void A_func(void *ptr, void *tag);
[[clang::pointer_with_type_tag(c,1,2)]] void C_func(void *ptr, int tag);
-
Index: clang/test/Sema/attr-regparm.c
===================================================================
--- clang/test/Sema/attr-regparm.c
+++ clang/test/Sema/attr-regparm.c
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 -triple i386-apple-darwin9 -fsyntax-only -fdouble-square-bracket-attributes -verify %s
+// RUN: %clang_cc1 -triple i386-apple-darwin9 -fsyntax-only -verify %s
__attribute((regparm(2))) int x0(void);
__attribute((regparm(1.0))) int x1(void); // expected-error{{'regparm' attribute requires an integer constant}}
Index: clang/test/Sema/attr-objc-bridge-related.m
===================================================================
--- clang/test/Sema/attr-objc-bridge-related.m
+++ clang/test/Sema/attr-objc-bridge-related.m
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 -verify -fsyntax-only -fdouble-square-bracket-attributes %s
+// RUN: %clang_cc1 -verify -fsyntax-only %s
struct [[clang::objc_bridge_related(NSParagraphStyle,,)]] TestBridgedRef;
Index: clang/test/Sema/attr-likelihood.c
===================================================================
--- clang/test/Sema/attr-likelihood.c
+++ clang/test/Sema/attr-likelihood.c
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 %s -fsyntax-only -fdouble-square-bracket-attributes -verify
+// RUN: %clang_cc1 %s -fsyntax-only -verify
void g(void) {
if (1)
Index: clang/test/Sema/attr-external-source-symbol.c
===================================================================
--- clang/test/Sema/attr-external-source-symbol.c
+++ clang/test/Sema/attr-external-source-symbol.c
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 -fsyntax-only -fblocks -verify -fdouble-square-bracket-attributes %s
+// RUN: %clang_cc1 -fsyntax-only -fblocks -verify %s
void threeClauses(void) __attribute__((external_source_symbol(language="Swift", defined_in="module", generated_declaration)));
Index: clang/test/Sema/attr-external-source-symbol-cxx.cpp
===================================================================
--- clang/test/Sema/attr-external-source-symbol-cxx.cpp
+++ clang/test/Sema/attr-external-source-symbol-cxx.cpp
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 -fsyntax-only -fblocks -verify -fdouble-square-bracket-attributes %s
+// RUN: %clang_cc1 -fsyntax-only -fblocks -verify %s
template<class T>
class Class {
Index: clang/test/Sema/attr-availability-square-brackets.c
===================================================================
--- clang/test/Sema/attr-availability-square-brackets.c
+++ clang/test/Sema/attr-availability-square-brackets.c
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 -triple x86_64-apple-darwin9 -fsyntax-only -fdouble-square-bracket-attributes -verify %s
+// RUN: %clang_cc1 -triple x86_64-apple-darwin9 -fsyntax-only -verify %s
[[clang::availability(macosx,introduced=10.4,deprecated=10.2)]] void f0(void); // expected-warning{{feature cannot be deprecated in macOS version 10.2 before it was introduced in version 10.4; attribute ignored}}
[[clang::availability(ios,obsoleted=2.1,deprecated=3.0)]] void f1(void); // expected-warning{{feature cannot be obsoleted in iOS version 2.1 before it was deprecated in version 3.0; attribute ignored}}
Index: clang/test/Sema/annotate.c
===================================================================
--- clang/test/Sema/annotate.c
+++ clang/test/Sema/annotate.c
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 %s -fsyntax-only -fdouble-square-bracket-attributes -verify
+// RUN: %clang_cc1 %s -fsyntax-only -verify
void __attribute__((annotate("foo"))) foo(float *a) {
__attribute__((annotate("bar"))) int x;
Index: clang/test/Sema/annotate-type.c
===================================================================
--- clang/test/Sema/annotate-type.c
+++ clang/test/Sema/annotate-type.c
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 %s -fsyntax-only -fdouble-square-bracket-attributes -verify
+// RUN: %clang_cc1 %s -fsyntax-only -verify
const char *some_function();
Index: clang/test/Preprocessor/has_c_attribute.c
===================================================================
--- clang/test/Preprocessor/has_c_attribute.c
+++ clang/test/Preprocessor/has_c_attribute.c
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 -fdouble-square-bracket-attributes -std=c11 -E -P %s -o - | FileCheck %s
+// RUN: %clang_cc1 -std=c11 -E -P %s -o - | FileCheck %s
// RUN: %clang_cc1 -std=c2x -E -P %s -o - | FileCheck %s
#define C2x(x) x: __has_c_attribute(x)
Index: clang/test/ParserHLSL/group_shared.hlsl
===================================================================
--- clang/test/ParserHLSL/group_shared.hlsl
+++ clang/test/ParserHLSL/group_shared.hlsl
@@ -8,9 +8,6 @@
// expected-warning@+1 {{'auto' type specifier is a C++11 extension}}
auto l = []() groupshared {};
-
-// NOTE: remove this error once [[]] attribute is supported except for hlsl202x.
-// expected-error@+1 {{expected expression}}
float groupshared [[]] i = 12;
float groupshared const i2 = 12;
Index: clang/test/Parser/objc-attr.m
===================================================================
--- clang/test/Parser/objc-attr.m
+++ clang/test/Parser/objc-attr.m
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 -fsyntax-only -fdouble-square-bracket-attributes -triple x86_64-apple-macosx10.10.0 -verify %s
+// RUN: %clang_cc1 -fsyntax-only -triple x86_64-apple-macosx10.10.0 -verify %s
// expected-no-diagnostics
@interface NSObject
@@ -14,7 +14,7 @@
[[clang::objc_runtime_name("name")]] @protocol Bar;
-[[clang::objc_protocol_requires_explicit_implementation]]
+[[clang::objc_protocol_requires_explicit_implementation]]
@protocol Baz
@end
Index: clang/test/Parser/cxx-decl.cpp
===================================================================
--- clang/test/Parser/cxx-decl.cpp
+++ clang/test/Parser/cxx-decl.cpp
@@ -196,12 +196,9 @@
}
// Ensure we produce at least some diagnostic for attributes in C++98.
-[[]] struct S;
-#if __cplusplus <= 199711L
-// expected-error@-2 {{expected expression}}
-// expected-error@-3 {{expected unqualified-id}}
-#else
-// expected-error@-5 {{misplaced attributes}}
+[[]] struct S; // expected-error {{misplaced attributes}}
+#if __cplusplus < 201103L
+// expected-error@-2 {{[[]] attributes are a C++11 extension}}
#endif
namespace test7 {
@@ -316,7 +313,6 @@
int test6b;
#if __cplusplus >= 201103L
-// expected-error@+3 {{expected}}
+// expected-error@+2 {{expected}}
// expected-error@-3 {{expected ';' after top level declarator}}
#endif
-
Index: clang/test/Parser/c2x-attributes.m
===================================================================
--- clang/test/Parser/c2x-attributes.m
+++ clang/test/Parser/c2x-attributes.m
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 -fsyntax-only -fdouble-square-bracket-attributes -verify %s
+// RUN: %clang_cc1 -fsyntax-only -verify %s
// expected-no-diagnostics
enum __attribute__((deprecated)) E1 : int; // ok
Index: clang/test/Parser/c2x-attributes.c
===================================================================
--- clang/test/Parser/c2x-attributes.c
+++ clang/test/Parser/c2x-attributes.c
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 -fsyntax-only -fdouble-square-bracket-attributes -verify=expected,notc2x -Wno-strict-prototypes %s
+// RUN: %clang_cc1 -fsyntax-only -verify=expected,notc2x -Wno-strict-prototypes %s
// RUN: %clang_cc1 -fsyntax-only -std=gnu2x -verify=expected,c2x %s
enum [[]] E {
Index: clang/test/Parser/asm.c
===================================================================
--- clang/test/Parser/asm.c
+++ clang/test/Parser/asm.c
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 -fsyntax-only -fdouble-square-bracket-attributes -verify %s
+// RUN: %clang_cc1 -fsyntax-only -verify %s
#if !__has_extension(gnu_asm)
#error Extension 'gnu_asm' should be available by default
@@ -11,7 +11,7 @@
void f2(void) {
asm("foo" : "=r" (a)); // expected-error {{use of undeclared identifier 'a'}}
- asm("foo" : : "r" (b)); // expected-error {{use of undeclared identifier 'b'}}
+ asm("foo" : : "r" (b)); // expected-error {{use of undeclared identifier 'b'}}
[[]] asm("");
[[gnu::deprecated]] asm(""); // expected-warning {{'deprecated' attribute ignored}}
Index: clang/test/OpenMP/openmp_attribute_compat.cpp
===================================================================
--- clang/test/OpenMP/openmp_attribute_compat.cpp
+++ clang/test/OpenMP/openmp_attribute_compat.cpp
@@ -7,7 +7,7 @@
// RUN: %clang_cc1 -fopenmp -fopenmp-version=50 -fsyntax-only -verify=off -Wno-openmp %s
// RUN: %clang_cc1 -fopenmp -fopenmp-version=50 -fsyntax-only -verify=off -Wno-openmp-51-extensions %s
-// RUN: %clang_cc1 -fopenmp -fopenmp-version=51 -fsyntax-only -verify=pre -Wpre-openmp-51-compat -x c -fdouble-square-bracket-attributes %s
+// RUN: %clang_cc1 -fopenmp -fopenmp-version=51 -fsyntax-only -verify=pre -Wpre-openmp-51-compat -x c %s
// RUN: %clang_cc1 -fopenmp -fopenmp-version=51 -fsyntax-only -verify=off -x c -std=c2x %s
// RUN: %clang_cc1 -fopenmp -fopenmp-version=50 -fsyntax-only -verify=ext -Wopenmp -x c -std=c2x %s
@@ -16,4 +16,3 @@
int x;
[[omp::directive(threadprivate(x))]]; // pre-warning {{specifying OpenMP directives with [[]] is incompatible with OpenMP standards before OpenMP 5.1}} \
// ext-warning {{specifying OpenMP directives with [[]] is an OpenMP 5.1 extension}}
-
Index: clang/test/OpenMP/assumes_messages_attr.c
===================================================================
--- clang/test/OpenMP/assumes_messages_attr.c
+++ clang/test/OpenMP/assumes_messages_attr.c
@@ -1,5 +1,5 @@
-// RUN: %clang_cc1 -triple=x86_64-pc-win32 -verify -fopenmp -fopenmp-version=51 -std=c99 -fms-extensions -fdouble-square-bracket-attributes -Wno-pragma-pack %s
-// RUN: %clang_cc1 -triple=x86_64-pc-win32 -verify -fopenmp-simd -fopenmp-version=51 -std=c99 -fms-extensions -fdouble-square-bracket-attributes -Wno-pragma-pack %s
+// RUN: %clang_cc1 -triple=x86_64-pc-win32 -verify -fopenmp -fopenmp-version=51 -std=c99 -fms-extensions -Wno-pragma-pack %s
+// RUN: %clang_cc1 -triple=x86_64-pc-win32 -verify -fopenmp-simd -fopenmp-version=51 -std=c99 -fms-extensions -Wno-pragma-pack %s
[[omp::directive(assumes)]]; // expected-error {{expected at least one 'ext_', 'absent', 'contains', 'holds', 'no_openmp', 'no_openmp_routines', 'no_parallelism' clause for '#pragma omp assumes'}}
[[omp::directive(begin)]]; // expected-error {{expected an OpenMP directive}}
@@ -54,4 +54,3 @@
// TODO: we should emit a warning at least.
[[omp::directive(begin assumes ext_abc)]];
-
Index: clang/test/Frontend/noderef.c
===================================================================
--- clang/test/Frontend/noderef.c
+++ clang/test/Frontend/noderef.c
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 -Wno-unused-value -fdouble-square-bracket-attributes -verify %s
+// RUN: %clang_cc1 -Wno-unused-value -verify %s
#define NODEREF __attribute__((noderef))
Index: clang/test/CodeGen/attr-btf_type_tag-var.c
===================================================================
--- clang/test/CodeGen/attr-btf_type_tag-var.c
+++ clang/test/CodeGen/attr-btf_type_tag-var.c
@@ -1,5 +1,5 @@
// RUN: %clang_cc1 -triple %itanium_abi_triple -debug-info-kind=limited -S -emit-llvm -o - %s | FileCheck %s
-// RUN: %clang_cc1 -triple %itanium_abi_triple -DDOUBLE_BRACKET_ATTRS=1 -fdouble-square-bracket-attributes -debug-info-kind=limited -S -emit-llvm -o - %s | FileCheck %s
+// RUN: %clang_cc1 -triple %itanium_abi_triple -DDOUBLE_BRACKET_ATTRS=1 -debug-info-kind=limited -S -emit-llvm -o - %s | FileCheck %s
#if DOUBLE_BRACKET_ATTRS
#define __tag1 [[clang::btf_type_tag("tag1")]]
Index: clang/test/CodeGen/attr-btf_type_tag-func.c
===================================================================
--- clang/test/CodeGen/attr-btf_type_tag-func.c
+++ clang/test/CodeGen/attr-btf_type_tag-func.c
@@ -1,5 +1,5 @@
// RUN: %clang_cc1 -triple %itanium_abi_triple -debug-info-kind=limited -S -emit-llvm -o - %s | FileCheck %s
-// RUN: %clang_cc1 -triple %itanium_abi_triple -DDOUBLE_BRACKET_ATTRS=1 -fdouble-square-bracket-attributes -debug-info-kind=limited -S -emit-llvm -o - %s | FileCheck %s
+// RUN: %clang_cc1 -triple %itanium_abi_triple -DDOUBLE_BRACKET_ATTRS=1 -debug-info-kind=limited -S -emit-llvm -o - %s | FileCheck %s
#if DOUBLE_BRACKET_ATTRS
#define __tag1 [[clang::btf_type_tag("tag1")]]
Index: clang/test/AST/attr-annotate-type.c
===================================================================
--- clang/test/AST/attr-annotate-type.c
+++ clang/test/AST/attr-annotate-type.c
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 %s -ast-dump -fdouble-square-bracket-attributes | FileCheck %s
+// RUN: %clang_cc1 %s -ast-dump | FileCheck %s
// Verify that we print the [[clang::annotate_type]] attribute.
// FIXME: The arguments are currently not printed -- see also comments in
Index: clang/test/AST/ast-dump-c-attr.c
===================================================================
--- clang/test/AST/ast-dump-c-attr.c
+++ clang/test/AST/ast-dump-c-attr.c
@@ -1,12 +1,12 @@
// Test without serialization:
-// RUN: %clang_cc1 -triple x86_64-pc-linux -fdouble-square-bracket-attributes \
+// RUN: %clang_cc1 -triple x86_64-pc-linux \
// RUN: -Wno-deprecated-declarations -ast-dump -ast-dump-filter Test %s \
// RUN: | FileCheck --strict-whitespace %s
//
// Test with serialization:
-// RUN: %clang_cc1 -triple x86_64-pc-linux -fdouble-square-bracket-attributes \
+// RUN: %clang_cc1 -triple x86_64-pc-linux \
// RUN: -Wno-deprecated-declarations -emit-pch -o %t %s
-// RUN: %clang_cc1 -x c -triple x86_64-pc-linux -fdouble-square-bracket-attributes \
+// RUN: %clang_cc1 -x c -triple x86_64-pc-linux \
// RUN: -Wno-deprecated-declarations -include-pch %t -ast-dump-all -ast-dump-filter Test /dev/null \
// RUN: | sed -e "s/ <undeserialized declarations>//" -e "s/ imported//" \
// RUN: | FileCheck --strict-whitespace %s
Index: clang/test/AST/ast-dump-attr.m
===================================================================
--- clang/test/AST/ast-dump-attr.m
+++ clang/test/AST/ast-dump-attr.m
@@ -1,12 +1,12 @@
// Test without serialization:
-// RUN: %clang_cc1 -fdouble-square-bracket-attributes -triple x86_64-apple-macosx10.10.0 \
+// RUN: %clang_cc1 -triple x86_64-apple-macosx10.10.0 \
// RUN: -ast-dump -ast-dump-filter Test %s \
// RUN: | FileCheck --strict-whitespace %s
//
// Test with serialization:
-// RUN: %clang_cc1 -fdouble-square-bracket-attributes -triple x86_64-apple-macosx10.10.0 \
+// RUN: %clang_cc1 -triple x86_64-apple-macosx10.10.0 \
// RUN: -emit-pch -o %t %s
-// RUN: %clang_cc1 -x objective-c -fdouble-square-bracket-attributes -triple x86_64-apple-macosx10.10.0 \
+// RUN: %clang_cc1 -x objective-c -triple x86_64-apple-macosx10.10.0 \
// RUN: -include-pch %t -ast-dump-all -ast-dump-filter Test /dev/null \
// RUN: | sed -e "s/ <undeserialized declarations>//" -e "s/ imported//" \
// RUN: | FileCheck --strict-whitespace %s
Index: clang/lib/Parse/ParseDeclCXX.cpp
===================================================================
--- clang/lib/Parse/ParseDeclCXX.cpp
+++ clang/lib/Parse/ParseDeclCXX.cpp
@@ -4474,7 +4474,9 @@
"Not a double square bracket attribute list");
SourceLocation OpenLoc = Tok.getLocation();
- Diag(OpenLoc, diag::warn_cxx98_compat_attribute);
+ Diag(OpenLoc, getLangOpts().CPlusPlus11 ? diag::warn_cxx98_compat_attribute
+ : getLangOpts().CPlusPlus ? diag::warn_ext_cxx11_attributes
+ : diag::warn_ext_c2x_attributes);
ConsumeBracket();
checkCompoundToken(OpenLoc, tok::l_square, CompoundToken::AttrBegin);
@@ -4589,8 +4591,6 @@
/// attribute-specifier-seq:
/// attribute-specifier-seq[opt] attribute-specifier
void Parser::ParseCXX11Attributes(ParsedAttributes &Attrs) {
- assert(standardAttributesAllowed());
-
SourceLocation StartLoc = Tok.getLocation();
SourceLocation EndLoc = StartLoc;
Index: clang/lib/Parse/ParseDecl.cpp
===================================================================
--- clang/lib/Parse/ParseDecl.cpp
+++ clang/lib/Parse/ParseDecl.cpp
@@ -3337,7 +3337,7 @@
case tok::l_square:
case tok::kw_alignas:
- if (!standardAttributesAllowed() || !isCXX11AttributeSpecifier())
+ if (!isCXX11AttributeSpecifier())
goto DoneWithDeclSpec;
ProhibitAttributes(attrs);
@@ -5160,7 +5160,7 @@
// If attributes exist after the enumerator, parse them.
ParsedAttributes attrs(AttrFactory);
MaybeParseGNUAttributes(attrs);
- if (standardAttributesAllowed() && isCXX11AttributeSpecifier()) {
+ if (isCXX11AttributeSpecifier()) {
if (getLangOpts().CPlusPlus)
Diag(Tok.getLocation(), getLangOpts().CPlusPlus17
? diag::warn_cxx14_compat_ns_enum_attribute
@@ -5885,8 +5885,7 @@
DeclSpec &DS, unsigned AttrReqs, bool AtomicAllowed,
bool IdentifierRequired,
std::optional<llvm::function_ref<void()>> CodeCompletionHandler) {
- if (standardAttributesAllowed() && (AttrReqs & AR_CXX11AttributesParsed) &&
- isCXX11AttributeSpecifier()) {
+ if ((AttrReqs & AR_CXX11AttributesParsed) && isCXX11AttributeSpecifier()) {
ParsedAttributes Attrs(AttrFactory);
ParseCXX11Attributes(Attrs);
DS.takeAttributesFrom(Attrs);
@@ -7064,7 +7063,7 @@
TrailingReturnTypeLoc = Range.getBegin();
EndLoc = Range.getEnd();
}
- } else if (standardAttributesAllowed()) {
+ } else {
MaybeParseCXX11Attributes(FnAttrs);
}
}
Index: clang/lib/Lex/Lexer.cpp
===================================================================
--- clang/lib/Lex/Lexer.cpp
+++ clang/lib/Lex/Lexer.cpp
@@ -4222,9 +4222,7 @@
if (LangOpts.Digraphs && Char == '>') {
Kind = tok::r_square; // ':>' -> ']'
CurPtr = ConsumeChar(CurPtr, SizeTmp, Result);
- } else if ((LangOpts.CPlusPlus ||
- LangOpts.DoubleSquareBracketAttributes) &&
- Char == ':') {
+ } else if (Char == ':') {
Kind = tok::coloncolon;
CurPtr = ConsumeChar(CurPtr, SizeTmp, Result);
} else {
@@ -4441,8 +4439,7 @@
Result.setLiteralData(TokPtr);
return true;
}
- if (Result.is(tok::colon) &&
- (LangOpts.CPlusPlus || LangOpts.DoubleSquareBracketAttributes)) {
+ if (Result.is(tok::colon)) {
// Convert consecutive colons to 'tok::coloncolon'.
if (*BufferPtr == ':') {
assert(DepDirectives.front().Tokens[NextDepDirectiveTokenIndex].is(
Index: clang/lib/Driver/ToolChains/Clang.cpp
===================================================================
--- clang/lib/Driver/ToolChains/Clang.cpp
+++ clang/lib/Driver/ToolChains/Clang.cpp
@@ -1193,7 +1193,7 @@
getToolChain().getTriple().isAMDGCN())) {
// Add include/gpu-none-libc/* to our system include path. This lets us use
- // GPU-specific system headers first.
+ // GPU-specific system headers first.
// TODO: We need to find a way to make these headers compatible with the
// host environment.
SmallString<128> P(llvm::sys::path::parent_path(D.InstalledDir));
@@ -6582,9 +6582,6 @@
types::isCXX(InputType))
CmdArgs.push_back("-fcoro-aligned-allocation");
- Args.AddLastArg(CmdArgs, options::OPT_fdouble_square_bracket_attributes,
- options::OPT_fno_double_square_bracket_attributes);
-
Args.addOptOutFlag(CmdArgs, options::OPT_faccess_control,
options::OPT_fno_access_control);
Args.addOptOutFlag(CmdArgs, options::OPT_felide_constructors,
Index: clang/lib/Basic/Attributes.cpp
===================================================================
--- clang/lib/Basic/Attributes.cpp
+++ clang/lib/Basic/Attributes.cpp
@@ -33,8 +33,7 @@
// attributes. We support those, but not through the typical attribute
// machinery that goes through TableGen. We support this in all OpenMP modes
// so long as double square brackets are enabled.
- if (LangOpts.OpenMP && LangOpts.DoubleSquareBracketAttributes &&
- ScopeName == "omp")
+ if (LangOpts.OpenMP && ScopeName == "omp")
return (Name == "directive" || Name == "sequence") ? 1 : 0;
int res = hasAttributeImpl(Syntax, Name, ScopeName, Target, LangOpts);
Index: clang/include/clang/Parse/Parser.h
===================================================================
--- clang/include/clang/Parse/Parser.h
+++ clang/include/clang/Parse/Parser.h
@@ -2685,17 +2685,11 @@
private:
void ParseBlockId(SourceLocation CaretLoc);
- /// Are [[]] attributes enabled?
- bool standardAttributesAllowed() const {
- const LangOptions &LO = getLangOpts();
- return LO.DoubleSquareBracketAttributes;
- }
-
// Check for the start of an attribute-specifier-seq in a context where an
// attribute is not allowed.
bool CheckProhibitedCXX11Attribute() {
assert(Tok.is(tok::l_square));
- if (!standardAttributesAllowed() || NextToken().isNot(tok::l_square))
+ if (NextToken().isNot(tok::l_square))
return false;
return DiagnoseProhibitedCXX11Attribute();
}
@@ -2703,8 +2697,6 @@
bool DiagnoseProhibitedCXX11Attribute();
void CheckMisplacedCXX11Attribute(ParsedAttributes &Attrs,
SourceLocation CorrectLocation) {
- if (!standardAttributesAllowed())
- return;
if ((Tok.isNot(tok::l_square) || NextToken().isNot(tok::l_square)) &&
Tok.isNot(tok::kw_alignas))
return;
@@ -2795,7 +2787,7 @@
bool MaybeParseAttributes(unsigned WhichAttrKinds, ParsedAttributes &Attrs,
LateParsedAttrList *LateAttrs = nullptr) {
if (Tok.isOneOf(tok::kw___attribute, tok::kw___declspec) ||
- (standardAttributesAllowed() && isCXX11AttributeSpecifier())) {
+ isCXX11AttributeSpecifier()) {
ParseAttributes(WhichAttrKinds, Attrs, LateAttrs);
return true;
}
@@ -2847,7 +2839,7 @@
}
}
void MaybeParseCXX11Attributes(Declarator &D) {
- if (standardAttributesAllowed() && isCXX11AttributeSpecifier()) {
+ if (isCXX11AttributeSpecifier()) {
ParsedAttributes Attrs(AttrFactory);
ParseCXX11Attributes(Attrs);
D.takeAttributes(Attrs);
@@ -2856,8 +2848,7 @@
bool MaybeParseCXX11Attributes(ParsedAttributes &Attrs,
bool OuterMightBeMessageSend = false) {
- if (standardAttributesAllowed() &&
- isCXX11AttributeSpecifier(false, OuterMightBeMessageSend)) {
+ if (isCXX11AttributeSpecifier(false, OuterMightBeMessageSend)) {
ParseCXX11Attributes(Attrs);
return true;
}
Index: clang/include/clang/Driver/Options.td
===================================================================
--- clang/include/clang/Driver/Options.td
+++ clang/include/clang/Driver/Options.td
@@ -1231,11 +1231,6 @@
def fast : Flag<["-"], "fast">, Group<f_Group>;
def fasynchronous_unwind_tables : Flag<["-"], "fasynchronous-unwind-tables">, Group<f_Group>;
-defm double_square_bracket_attributes : BoolFOption<"double-square-bracket-attributes",
- LangOpts<"DoubleSquareBracketAttributes">, Default<!strconcat(cpp11.KeyPath, "||", c2x.KeyPath)>,
- PosFlag<SetTrue, [], "Enable">, NegFlag<SetFalse, [], "Disable">,
- BothFlags<[NoXarchOption, CC1Option], " '[[]]' attributes in all C and C++ language modes">>;
-
defm autolink : BoolFOption<"autolink",
CodeGenOpts<"Autolink">, DefaultTrue,
NegFlag<SetFalse, [CC1Option], "Disable generation of linker directives for automatic library linking">,
@@ -3532,7 +3527,7 @@
def mguard_EQ : Joined<["-"], "mguard=">, Group<m_Group>, Flags<[NoXarchOption]>,
HelpText<"Enable or disable Control Flow Guard checks and guard tables emission">,
Values<"none,cf,cf-nochecks">;
-def mcpu_EQ : Joined<["-"], "mcpu=">, Group<m_Group>,
+def mcpu_EQ : Joined<["-"], "mcpu=">, Group<m_Group>,
HelpText<"For a list of available CPUs for the target use '-mcpu=help'">;
def mmcu_EQ : Joined<["-"], "mmcu=">, Group<m_Group>;
def msim : Flag<["-"], "msim">, Group<m_Group>;
Index: clang/include/clang/Basic/LangOptions.def
===================================================================
--- clang/include/clang/Basic/LangOptions.def
+++ clang/include/clang/Basic/LangOptions.def
@@ -160,8 +160,6 @@
LANGOPT(RelaxedTemplateTemplateArgs, 1, 0, "C++17 relaxed matching of template template arguments")
LANGOPT(ExperimentalLibrary, 1, 0, "enable unstable and experimental library features")
-LANGOPT(DoubleSquareBracketAttributes, 1, 0, "'[[]]' attributes extension for all language standard modes")
-
COMPATIBLE_LANGOPT(RecoveryAST, 1, 1, "Preserve expressions in AST when encountering errors")
COMPATIBLE_LANGOPT(RecoveryASTType, 1, 1, "Preserve the type in recovery expressions")
Index: clang/include/clang/Basic/DiagnosticParseKinds.td
===================================================================
--- clang/include/clang/Basic/DiagnosticParseKinds.td
+++ clang/include/clang/Basic/DiagnosticParseKinds.td
@@ -550,7 +550,7 @@
def err_expected_unqualified_id : Error<
"expected %select{identifier|unqualified-id}0">;
def err_while_loop_outside_of_a_function : Error<
- "while loop outside of a function">;
+ "while loop outside of a function">;
def err_brackets_go_after_unqualified_id : Error<
"brackets are not allowed here; to declare an array, "
"place the brackets after the %select{identifier|name}0">;
@@ -718,6 +718,12 @@
def warn_cxx98_compat_attribute : Warning<
"C++11 attribute syntax is incompatible with C++98">,
InGroup<CXX98Compat>, DefaultIgnore;
+def warn_ext_cxx11_attributes : Extension<
+ "[[]] attributes are a C++11 extension">,
+ InGroup<CXX11>;
+def warn_ext_c2x_attributes : Extension<
+ "[[]] attributes are a C2x extension">,
+ InGroup<C2x>;
def err_cxx11_attribute_forbids_arguments : Error<
"attribute %0 cannot have an argument list">;
def err_attribute_requires_arguments : Error<
Index: clang/docs/LanguageExtensions.rst
===================================================================
--- clang/docs/LanguageExtensions.rst
+++ clang/docs/LanguageExtensions.rst
@@ -1401,15 +1401,15 @@
Language Extensions Back-ported to Previous Standards
=====================================================
-====================================== ================================ ============= ============= ==================================
-Feature Feature Test Macro Introduced In Backported To Required Flags
-====================================== ================================ ============= ============= ==================================
+====================================== ================================ ============= =============
+Feature Feature Test Macro Introduced In Backported To
+====================================== ================================ ============= =============
variadic templates __cpp_variadic_templates C++11 C++03
Alias templates __cpp_alias_templates C++11 C++03
Non-static data member initializers __cpp_nsdmi C++11 C++03
Range-based ``for`` loop __cpp_range_based_for C++11 C++03
RValue references __cpp_rvalue_references C++11 C++03
-Attributes __cpp_attributes C++11 C++03 -fdouble-square-bracket-attributes
+Attributes __cpp_attributes C++11 C++03
variable templates __cpp_variable_templates C++14 C++03
Binary literals __cpp_binary_literals C++14 C++03
Relaxed constexpr __cpp_constexpr C++14 C++11
@@ -1429,10 +1429,10 @@
``using enum`` __cpp_using_enum C++20 C++03
``if consteval`` __cpp_if_consteval C++23 C++20
``static operator()`` __cpp_static_call_operator C++23 C++03
--------------------------------------- -------------------------------- ------------- ------------- ----------------------------------
+-------------------------------------- -------------------------------- ------------- -------------
Designated initializers (N494) C99 C89
Array & element qualification (N2607) C2x C89
-====================================== ================================ ============= ============= ==================================
+====================================== ================================ ============= =============
Type Trait Primitives
=====================
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