clang/test/Parser/asm.c

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