1 // RUN: %clang_cc1 -fsyntax-only -verify %s
2
f1()3 void f1() {
4 // PR7673: Some versions of GCC support an empty clobbers section.
5 asm ("ret" : : :);
6 }
7
f2()8 void f2() {
9 asm("foo" : "=r" (a)); // expected-error {{use of undeclared identifier 'a'}}
10 asm("foo" : : "r" (b)); // expected-error {{use of undeclared identifier 'b'}}
11
12 asm const (""); // expected-warning {{ignored const qualifier on asm}}
13 asm volatile ("");
14 asm restrict (""); // expected-warning {{ignored restrict qualifier on asm}}
15 // FIXME: Once GCC supports _Atomic, check whether it allows this.
16 asm _Atomic (""); // expected-warning {{ignored _Atomic qualifier on asm}}
17 }
18
19
20 // rdar://5952468
21 __asm ; // expected-error {{expected '(' after 'asm'}}
22
23 // <rdar://problem/10465079> - Don't crash on wide string literals in 'asm'.
24 int foo asm (L"bar"); // expected-error {{cannot use wide string literal in 'asm'}}
25
26 asm() // expected-error {{expected string literal in 'asm'}}
27 // expected-error@-1 {{expected ';' after top-level asm block}}
28
29 asm(; // expected-error {{expected string literal in 'asm'}}
30
31 asm("") // expected-error {{expected ';' after top-level asm block}}
32
33 // Unterminated asm strings at the end of the file were causing us to crash, so
34 // this needs to be last. rdar://15624081
35 // expected-warning@+3 {{missing terminating '"' character}}
36 // expected-error@+2 {{expected string literal in 'asm'}}
37 // expected-error@+1 {{expected ';' after top-level asm block}}
38 asm("
39