gcc/gcc/testsuite/gcc.dg/pr103431.c

22 lines
424 B
C

/* PR middle-end/103431 */
/* { dg-do run { target int128 } } */
/* { dg-options "-O -fno-tree-bit-ccp -fno-tree-dominator-opts" } */
__attribute__((noipa))
void foo (unsigned short a)
{
__uint128_t b = 5;
int size = __SIZEOF_INT128__ * __CHAR_BIT__ - 1;
a /= 0xfffffffd;
__uint128_t c = (b << (a & size) | b >> (-(a & size) & size));
if (c != 5)
__builtin_abort ();
}
int
main ()
{
foo (0);
return 0;
}