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/* PR 5878.
We ICEd in verify_local_live_at_start because we incorrectly forced
the PIC register live between BAR and BAZ. We did this because the
definition of PIC_OFFSET_TABLE_REGNUM was incorrectly not INVALID_REGNUM
when !flag_pic for most targets. */
/* { dg-do run } */
/* { dg-options "-O -fno-pic" } */
extern void abort (void);
#if defined(__alpha__)
/* PIC register is $29, but is used even without -fpic. */
#elif defined(__arc__)
# define PIC_REG "26"
#elif defined(__arm__)
# define PIC_REG "9"
#elif defined(AVR)
/* No pic register. */
#elif defined(__cris__)
# define PIC_REG "0"
#elif defined(__fr30__)
/* No pic register. */
#elif defined(__H8300__) || defined(__H8300H__) || defined(__H8300S__)
/* No pic register. */
#elif defined(_IBMR2)
/* No pic register. */
#elif defined(__i386__)
# define PIC_REG "ebx"
#elif defined(__ia64__)
/* PIC register is r1, but is used even without -fpic. */
#elif defined(__M32R__)
/* No pic register. */
#elif defined(__m68k__)
# define PIC_REG "a5"
#elif defined(__mc68hc1x__)
/* No pic register. */
#elif defined(__mcore__)
/* No pic register. */
#elif defined(__mips__)
/* PIC register is $28, but is used even without -fpic. */
#elif defined(__MMIX__)
/* No pic register. */
#elif defined(__mn10300__)
/* No pic register. */
#elif defined(__hppa__)
/* PIC register is %r27 or %r19, but is used even without -fpic. */
#elif defined(__pdp11__)
/* No pic register. */
#elif defined(__powerpc__) || defined(__PPC__) || defined(__POWERPC__)
# ifdef __MACH__
# define PIC_REG "31"
# else
# define PIC_REG "30"
# endif
#elif defined(__s390__)
# define PIC_REG "12"
#elif defined(__sparc__)
# define PIC_REG "l7"
#elif defined(__v850)
/* No pic register. */
#elif defined(__vax__)
/* No pic register. */
#elif defined(__xstormy16__)
/* No pic register. */
#elif defined(__XTENSA__)
/* No pic register. */
#elif defined(__sh__)
# define PIC_REG "r12"
#elif defined(__x86_64__)
/* No pic register. */
#else
# error "Modify the test for your target."
#endif
#if defined PIC_REG && !defined __PIC__ && !defined __pic__
register void *reg __asm__(PIC_REG);
#else
/* We really need a global register variable set to the PIC register
to expose the bug. Oh well, let the test case not fail. */
static void *reg;
#endif
void * __attribute__((noinline))
dummy (void *x)
{
return x;
}
void
f (void)
{
goto *dummy (&&bar);
for (;;)
{
foo:
reg = (void *) 1;
if (!reg)
goto baz;
reg = &&foo;
}
bar:
baz:
reg = 0;
}
int
main()
{
void *old_reg = reg;
reg = (void *) 1;
f ();
/* Additionally test that the prologue/epilogue properly does *not*
save and restore global registers. Not possible when the PIC
register is in a register window, of course. On Darwin, you can't
call library routines from non-PIC code. */
#if !defined (__sparc__) && !defined(__MACH__)
if (reg)
abort ();
#endif
reg = old_reg;
return 0;
}
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