llvm-project/clang/test/SemaCXX/attr-print.cpp
Alois Klink 79a28aa0a4 [clang] Ignore GCC 11 [[malloc(x)]] attribute
Ignore the `[[malloc(x)]]` or `[[malloc(x, 1)]]` function attribute
syntax added in [GCC 11][1] and print a warning instead of an error.

Unlike `[[malloc]]` with no arguments (which is supported by Clang),
GCC uses the one or two argument form to specify a deallocator for
GCC's static analyzer.

Code currently compiled with `[[malloc(x)]]` or
`__attribute((malloc(x)))` fails with the following error:
`'malloc' attribute takes no arguments`.

[1]: https://gcc.gnu.org/git/?p=gcc.git;a=commitdiff;f=gcc/doc/extend.texi;h=dce6c58db87ebf7f4477bd3126228e73e4eeee97#patch6

Fixes: https://github.com/llvm/llvm-project/issues/51607
Partial-Bug: https://github.com/llvm/llvm-project/issues/53152
2025-02-27 08:06:58 -08:00

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1.9 KiB
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// RUN: %clang_cc1 %s -ast-print -fms-extensions | FileCheck %s
// CHECK: int x __attribute__((aligned(4)));
int x __attribute__((aligned(4)));
// CHECK: __declspec(align(4)) int y;
__declspec(align(4)) int y;
// CHECK: int foo() __attribute__((const));
int foo() __attribute__((const));
// CHECK: int bar() __attribute__((__const));
int bar() __attribute__((__const));
// FIXME: Print this with correct format.
// CHECK: int foo1() __attribute__((noinline)) __attribute__((pure));
int foo1() __attribute__((noinline, pure));
// CHECK: typedef int Small1 __attribute__((mode(byte)));
typedef int Small1 __attribute__((mode(byte)));
// CHECK: int small __attribute__((mode(byte)));
int small __attribute__((mode(byte)));
// CHECK: int v __attribute__((visibility("hidden")));
int v __attribute__((visibility("hidden")));
// CHECK: char *PR24565() __attribute__((malloc))
char *PR24565() __attribute__((__malloc__));
void my_cleanup_func(char *);
// using __attribute__(malloc()) with args is currently ignored by Clang
// CHECK: char *PR52265_a()
__attribute__((malloc(my_cleanup_func))) char *PR52265_a();
// CHECK: char *PR52265_b()
__attribute__((malloc(my_cleanup_func, 1))) char *PR52265_b();
// CHECK: class __attribute__((consumable("unknown"))) AttrTester1
class __attribute__((consumable(unknown))) AttrTester1 {
// CHECK: void callableWhen() __attribute__((callable_when("unconsumed", "consumed")));
void callableWhen() __attribute__((callable_when("unconsumed", "consumed")));
};
// CHECK: class __single_inheritance SingleInheritance;
class __single_inheritance SingleInheritance;
// CHECK: class __multiple_inheritance MultipleInheritance;
class __multiple_inheritance MultipleInheritance;
// CHECK: class __virtual_inheritance VirtualInheritance;
class __virtual_inheritance VirtualInheritance;
// CHECK: typedef double *aligned_double __attribute__((align_value(64)));
typedef double * __attribute__((align_value(64))) aligned_double;