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