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// RUN: %clang_cc1 -fsyntax-only -verify %s
#if !__has_extension(gnu_asm)
#error Extension 'gnu_asm' should be available by default
#endif
void f1(void) {
// PR7673: Some versions of GCC support an empty clobbers section.
asm ("ret" : : :);
}
void f2(void) {
asm("foo" : "=r" (a)); // expected-error {{use of undeclared identifier 'a'}}
asm("foo" : : "r" (b)); // expected-error {{use of undeclared identifier 'b'}}
[[]] asm("");
[[gnu::deprecated]] asm(""); // expected-warning {{'deprecated' attribute ignored}}
}
void a(void) __asm__(""); // expected-error {{cannot use an empty string literal in 'asm'}}
void a(void) {
__asm__(""); // ok
}
__asm ; // expected-error {{expected '(' after 'asm'}}
// Don't crash on wide string literals in 'asm'.
int foo asm (L"bar"); // expected-error {{cannot use wide string literal in 'asm'}}
asm() // expected-error {{expected string literal in 'asm'}}
// expected-error@-1 {{expected ';' after top-level asm block}}
asm(; // expected-error {{expected string literal in 'asm'}}
asm("") // expected-error {{expected ';' after top-level asm block}}
// Unterminated asm strings at the end of the file were causing us to crash, so
// this needs to be last.
// expected-warning@+3 {{missing terminating '"' character}}
// expected-error@+2 {{expected string literal in 'asm'}}
// expected-error@+1 {{expected ';' after top-level asm block}}
asm("
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