Viewing file:  pr51933.c (1.19 KB) -rw-r--r--
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/* PR rtl-optimization/51933 */
static signed char v1;
static unsigned char v2[256], v3[256];
__attribute__((noclone, noinline)) void
foo (void)
{
#if defined(__s390__) && !defined(__zarch__)
/* S/390 31 bit cannot deal with more than one literal pool
reference per insn. */
asm volatile ("" : : "g" (&v1) : "memory");
asm volatile ("" : : "g" (&v2[0]));
asm volatile ("" : : "g" (&v3[0]));
#else
asm volatile ("" : : "g" (&v1), "g" (&v2[0]), "g" (&v3[0]) : "memory");
#endif
}
__attribute__((noclone, noinline)) int
bar (const int x, const unsigned short *y, char *z)
{
int i;
unsigned short u;
if (!v1)
foo ();
for (i = 0; i < x; i++)
{
u = y[i];
z[i] = u < 0x0100 ? v2[u] : v3[u & 0xff];
}
z[x] = '\0';
return x;
}
int
main (void)
{
char buf[18];
unsigned short s[18];
unsigned char c[18] = "abcdefghijklmnopq";
int i;
for (i = 0; i < 256; i++)
{
v2[i] = i;
v3[i] = i + 1;
}
for (i = 0; i < 18; i++)
s[i] = c[i];
s[5] |= 0x600;
s[6] |= 0x500;
s[11] |= 0x2000;
s[15] |= 0x500;
foo ();
if (bar (17, s, buf) != 17
|| __builtin_memcmp (buf, "abcdeghhijkmmnoqq", 18) != 0)
__builtin_abort ();
return 0;
}
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