1 // RUN: %clang_cc1 -triple i386-pc-linux-gnu -fsyntax-only -verify %s
2 // RUN: %clang_cc1 -triple x86_64-pc-linux-gnu -fsyntax-only -verify %s
3
4 #if !__has_extension(gnu_asm)
5 #error Extension 'gnu_asm' should be available by default
6 #endif
7 #if !__has_extension(gnu_asm_goto_with_outputs)
8 #error Extension 'gnu_asm_goto_with_outputs' should be available by default
9 #endif
10 #if !__has_extension(gnu_asm_goto_with_outputs_full)
11 #error Extension 'gnu_asm_goto_with_outputs_full' should be available by default
12 #endif
13
14 int a, b, c, d, e, f, g, h, i, j, k, l;
15
test(void)16 void test(void) {
17 __asm__ volatile goto (""
18 :: [a] "r" (a), [b] "r" (b), [c] "r" (c), [d] "r" (d),
19 [e] "r" (e), [f] "r" (f), [g] "r" (g), [h] "r" (h),
20 [i] "r" (i), [j] "r" (j), [k] "r" (k), [l] "r" (l)
21 ::lab1,lab2);
22 lab1: return;
23 lab2: return;
24 }
25
test2(void)26 void test2(void) {
27 __asm__ volatile goto (""
28 :: [a] "r,m" (a), [b] "r,m" (b), [c] "r,m" (c), [d] "r,m" (d),
29 [e] "r,m" (e), [f] "r,m" (f), [g] "r,m" (g), [h] "r,m" (h),
30 [i] "r,m" (i), [j] "r,m" (j), [k] "r,m" (k), [l] "r,m" (l)
31 :: lab);
32 lab: return;
33 }
34
test3(int x)35 int test3(int x) {
36 __asm__ volatile goto ("decl %0; jnz %l[a]"
37 : "=r" (x) : "m" (x) : "memory" : a);
38 a:
39 return -x;
40 }
41
test4(int x)42 int test4(int x) {
43 int y;
44 if (x > 42)
45 __asm__ volatile goto ("decl %0; jnz %l[a]"
46 : "=r" (x), "=r" (y) : "m" (x) : "memory" : a);
47 else
48 __asm__ volatile goto ("decl %0; jnz %l[b]"
49 : "=r" (x), "=r" (y) : "m" (x) : "memory" : b);
50 x = y + 42;
51 a:
52 return -x;
53 b:
54 return +x;
55 }
56
test5(void)57 int test5(void) {
58 int x,cond,*e;
59 // expected-error@+1 {{expected ')'}}
60 asm ("mov %[e], %[e]" : : [e] "rm" (*e)::a)
61 // expected-error@+1 {{expected identifier}}
62 asm goto ("decl %0;" :: "m"(x) : "memory" : );
63 // expected-error@+1 {{expected ':'}}
64 asm goto ("decl %0;" :: "m"(x) : "memory" );
65 // expected-error@+1 {{use of undeclared label 'x'}}
66 asm goto ("decl %0;" :: "m"(x) : "memory" :x);
67 // expected-error@+1 {{use of undeclared label 'b'}}
68 asm goto ("decl %0;" :: "m"(x) : "memory" :b);
69 // expected-error@+1 {{invalid operand number in inline asm string}}
70 asm goto ("testl %0, %0; jne %l3;" :: "r"(cond)::label_true, loop);
71 // expected-error@+1 {{unknown symbolic operand name in inline assembly string}}
72 asm goto ("decl %0; jnz %l[b]" :: "m"(x) : "memory" : a);
73 a:
74 label_true:
75 loop:
76 return 0;
77 }
78
test6(int y)79 int test6(int y) {
80 int x,cond,*e;
81 // expected-error@+1 {{expected ')'}}
82 asm ("mov %[e], %[e]" : "=r" (y) : [e] "rm" (*e), "r" (y) :: a)
83 // expected-error@+1 {{expected identifier}}
84 asm goto ("decl %0;" : "=r" (y) : "m" (x), "r" (y) : "memory" :);
85 // expected-error@+1 {{expected ':'}}
86 asm goto ("decl %0;" : "=r" (y) : "m" (x), "r" (y) : "memory");
87 // expected-error@+1 {{use of undeclared label 'x'}}
88 asm goto ("decl %0;" : "=r" (y) : "m" (x), "r" (y) : "memory" : x);
89 // expected-error@+1 {{use of undeclared label 'b'}}
90 asm goto ("decl %0;" : "=r" (y) : "m" (x), "r" (y) : "memory" : b);
91 // expected-error@+1 {{invalid operand number in inline asm string}}
92 asm goto ("testl %0, %0; jne %l5;" : "=r" (y) : "r" (cond), "r" (y) :: label_true, loop);
93 // expected-error@+1 {{unknown symbolic operand name in inline assembly string}}
94 asm goto ("decl %0; jnz %l[b]" : "=r" (y) : "m" (x), "r" (y) : "memory" : a);
95 label_true:
96 loop:
97 a:
98 return 0;
99 }
100