Viewing file:  pr44071.c (1.28 KB) -rw-r--r--
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/* PR middle-end/44071 */
/* { dg-do run } */
/* { dg-options "-O2" } */
static inline int
f1 (void)
{
asm goto ("jmp %l[l1]" : : : : l1, l2);
__builtin_unreachable ();
l1:
return 1;
l2:
return 0;
}
__attribute__((noinline)) int
b1 (int x)
{
if (f1 () || x == 6)
x = 1;
else
x = 2;
return x;
}
static inline int
f2 (void)
{
asm goto ("jmp %l[l2]" : : : : l1, l2);
__builtin_unreachable ();
l1:
return 1;
l2:
return 0;
}
__attribute__((noinline)) int
b2 (int x)
{
if (f2 () || x == 6)
x = 1;
else
x = 2;
return x;
}
static inline int
f3 (void)
{
asm goto ("jmp %l[l1]" : : : : l1, l2);
l1:
return 1;
l2:
return 0;
}
__attribute__((noinline)) int
b3 (int x)
{
if (f3 () || x == 6)
x = 1;
else
x = 2;
return x;
}
static inline int
f4 (void)
{
asm goto ("jmp %l[l2]" : : : : l1, l2);
l1:
return 1;
l2:
return 0;
}
__attribute__((noinline)) int
b4 (int x)
{
if (f4 () || x == 6)
x = 1;
else
x = 2;
return x;
}
extern void abort (void);
int
main (void)
{
int x;
asm ("" : "=r" (x) : "0" (0));
if (b1 (x) != 1 || b1 (x + 6) != 1)
abort ();
if (b2 (x) != 2 || b2 (x + 6) != 1)
abort ();
if (b3 (x) != 1 || b3 (x + 6) != 1)
abort ();
if (b4 (x) != 2 || b4 (x + 6) != 1)
abort ();
return 0;
}
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