97 lines
3.2 KiB
C
97 lines
3.2 KiB
C
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// RUN: %clang_cc1 -triple i386-pc-linux-gnu -fsyntax-only -verify %s
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// RUN: %clang_cc1 -triple x86_64-pc-linux-gnu -fsyntax-only -verify %s
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#if !__has_extension(gnu_asm)
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#error Extension 'gnu_asm' should be available by default
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#endif
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#if !__has_extension(gnu_asm_goto_with_outputs)
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#error Extension 'gnu_asm_goto_with_outputs' should be available by default
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#endif
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int a, b, c, d, e, f, g, h, i, j, k, l;
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void test(void) {
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__asm__ volatile goto (""
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:: [a] "r" (a), [b] "r" (b), [c] "r" (c), [d] "r" (d),
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[e] "r" (e), [f] "r" (f), [g] "r" (g), [h] "r" (h),
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[i] "r" (i), [j] "r" (j), [k] "r" (k), [l] "r" (l)
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::lab1,lab2);
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lab1: return;
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lab2: return;
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}
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void test2(void) {
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__asm__ volatile goto (""
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:: [a] "r,m" (a), [b] "r,m" (b), [c] "r,m" (c), [d] "r,m" (d),
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[e] "r,m" (e), [f] "r,m" (f), [g] "r,m" (g), [h] "r,m" (h),
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[i] "r,m" (i), [j] "r,m" (j), [k] "r,m" (k), [l] "r,m" (l)
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:: lab);
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lab: return;
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}
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int test3(int x) {
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__asm__ volatile goto ("decl %0; jnz %l[a]"
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: "=r" (x) : "m" (x) : "memory" : a);
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a:
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return -x;
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}
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int test4(int x) {
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int y;
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if (x > 42)
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__asm__ volatile goto ("decl %0; jnz %l[a]"
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: "=r" (x), "=r" (y) : "m" (x) : "memory" : a);
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else
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__asm__ volatile goto ("decl %0; jnz %l[b]"
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: "=r" (x), "=r" (y) : "m" (x) : "memory" : b);
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x = y + 42;
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a:
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return -x;
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b:
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return +x;
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}
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int test5(void) {
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int x,cond,*e;
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// expected-error@+1 {{expected ')'}}
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asm ("mov %[e], %[e]" : : [e] "rm" (*e)::a)
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// expected-error@+1 {{expected identifier}}
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asm goto ("decl %0;" :: "m"(x) : "memory" : );
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// expected-error@+1 {{expected ':'}}
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asm goto ("decl %0;" :: "m"(x) : "memory" );
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// expected-error@+1 {{use of undeclared label 'x'}}
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asm goto ("decl %0;" :: "m"(x) : "memory" :x);
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// expected-error@+1 {{use of undeclared label 'b'}}
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asm goto ("decl %0;" :: "m"(x) : "memory" :b);
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// expected-error@+1 {{invalid operand number in inline asm string}}
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asm goto ("testl %0, %0; jne %l3;" :: "r"(cond)::label_true, loop);
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// expected-error@+1 {{unknown symbolic operand name in inline assembly string}}
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asm goto ("decl %0; jnz %l[b]" :: "m"(x) : "memory" : a);
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a:
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label_true:
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loop:
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return 0;
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}
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int test6(int y) {
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int x,cond,*e;
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// expected-error@+1 {{expected ')'}}
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asm ("mov %[e], %[e]" : "=r" (y) : [e] "rm" (*e), "r" (y) :: a)
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// expected-error@+1 {{expected identifier}}
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asm goto ("decl %0;" : "=r" (y) : "m" (x), "r" (y) : "memory" :);
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// expected-error@+1 {{expected ':'}}
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asm goto ("decl %0;" : "=r" (y) : "m" (x), "r" (y) : "memory");
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// expected-error@+1 {{use of undeclared label 'x'}}
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asm goto ("decl %0;" : "=r" (y) : "m" (x), "r" (y) : "memory" : x);
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// expected-error@+1 {{use of undeclared label 'b'}}
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asm goto ("decl %0;" : "=r" (y) : "m" (x), "r" (y) : "memory" : b);
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// expected-error@+1 {{invalid operand number in inline asm string}}
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asm goto ("testl %0, %0; jne %l5;" : "=r" (y) : "r" (cond), "r" (y) :: label_true, loop);
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// expected-error@+1 {{unknown symbolic operand name in inline assembly string}}
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asm goto ("decl %0; jnz %l[b]" : "=r" (y) : "m" (x), "r" (y) : "memory" : a);
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label_true:
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loop:
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a:
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return 0;
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}
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