xref: /llvm-project/clang/test/Sema/preserve-none-call-conv.c (revision 5dcf3d5335a8bd936c89a4cdf1da909e6b995b6f) 
1 // RUN: %clang_cc1 %s -fsyntax-only -triple x86_64-unknown-unknown -verify
2 // RUN: %clang_cc1 %s -fsyntax-only -triple aarch64-unknown-unknown -verify
3 
4 typedef void typedef_fun_t(int);
5 
boo(void * ptr)6 void __attribute__((preserve_none)) boo(void *ptr) {
7 }
8 
boo1(void * ptr)9 void __attribute__((preserve_none(1))) boo1(void *ptr) { // expected-error {{'preserve_none' attribute takes no arguments}}
10 }
11 
12 void (__attribute__((preserve_none)) *pboo1)(void *) = boo;
13 
14 void (__attribute__((cdecl)) *pboo2)(void *) = boo; // expected-error {{incompatible function pointer types initializing 'void (*)(void *) __attribute__((cdecl))' with an expression of type 'void (void *) __attribute__((preserve_none))'}}
15 void (*pboo3)(void *) = boo; // expected-error {{incompatible function pointer types initializing 'void (*)(void *)' with an expression of type 'void (void *) __attribute__((preserve_none))'}}
16 
17 typedef_fun_t typedef_fun_boo; // expected-note {{previous declaration is here}}
typedef_fun_boo(int x)18 void __attribute__((preserve_none)) typedef_fun_boo(int x) { } // expected-error {{function declared 'preserve_none' here was previously declared without calling convention}}
19 
20 struct type_test_boo {} __attribute__((preserve_none));  // expected-warning {{'preserve_none' attribute only applies to functions and function pointers}}
21