/* { dg-do run } */ /* { dg-options "-O2 -fipa-ra" } */ extern void abort (void); #if (__SIZEOF_LONG_LONG__ == __SIZEOF_POINTER__) #define ADD_SUFFIX(a) a ## ULL #elif (__SIZEOF_LONG__ == __SIZEOF_POINTER__) #define ADD_SUFFIX(a) a ## UL #elif (__SIZEOF_INT__ == __SIZEOF_POINTER__) #define ADD_SUFFIX(a) a ## U #else #error Add target support here #endif #if __SIZEOF_POINTER__ <= 4 /* Use a 16 bit pointer to have a valid pointer for 16-bit to 31-bit pointer architectures. Using sizeof, we cannot distinguish between 31-bit and 32-bit pointer types, so we also handle the 32-bit pointer type case here. */ #define CONST_PTR ADD_SUFFIX (0x800) #else /* For x86_64 -m64, the problem reproduces with this 32-bit CONST_PTR, but not with a 2-power below it. */ #define CONST_PTR ADD_SUFFIX (0x80000000) #endif int __attribute__((noinline, noclone)) bar (void) { return 1; } struct S { unsigned long p, q, r; void *v; }; struct S *s1; struct S *s2; void __attribute__((noinline, noclone)) fn2 (struct S *x) { s2 = x; } __attribute__((noinline, noclone)) void * fn1 (struct S *x) { /* Just a statement to make it a non-const function. */ s1 = x; return (void *)0; } int __attribute__((noinline, noclone)) baz (void) { struct S *x = (struct S *) CONST_PTR; x += bar (); fn1 (x); fn2 (x); return 0; } int main (void) { baz (); if (s2 != (((struct S *) CONST_PTR) + 1)) abort (); return 0; }