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