Viewing file:  ssa-ccp-3.c (2.33 KB) -rw-r--r--
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/* { dg-do compile } */
/* { dg-options "-O -fdump-tree-ccp2" } */
extern void link_error (void);
/* Some addresses clearly cannot be equal, check that some address
expressions can be evaluated as constants.
Most of the tests are folding tests, but at least some require
points-to analysis, so we scan the first CCP dump after PTA. */
char g1, g2;
void test6 (char p1, char p2)
{
char l1 = 1, l2 = 2;
static char s1 = 5, s2 = 7;
if (&l1 == &l2)
link_error ();
if (&p1 == &p2)
link_error ();
if (&s1 == &s2)
link_error ();
if (&g1 == &g2)
link_error ();
if (&p1 == &l1)
link_error ();
if (&p1 == &s1)
link_error ();
if (&p1 == &l2)
link_error ();
if (&p1 == &g1)
link_error ();
if (&l1 == &g1)
link_error ();
if (&s1 == &g1)
link_error ();
}
extern void *alloc (int) __attribute__ ((malloc));
char gca1[128];
char* __restrict__ rgc1;
char* test66 (char * __restrict__ rp1, char * __restrict__ rp2, char *p1)
{
char * __restrict__ rl1 = p1;
char * l1 = (char*) alloc (20);
if (l1 == rgc1)
link_error ();
if (l1 == rp1)
link_error ();
if (l1 == rl1)
link_error ();
if (l1 == gca1)
link_error ();
if (rl1 == rgc1)
link_error ();
if (rl1 == rp1)
link_error ();
if (rl1 == gca1)
link_error ();
if (rp1 == rp2)
link_error ();
if (rp1 == rgc1)
link_error ();
if (rp1 == gca1)
link_error ();
if (gca1 == rgc1)
link_error ();
}
int gci1[128];
int* __restrict__ rgi1;
int* test666 (int * __restrict__ rp1, int * __restrict__ rp2, int *p1)
{
int * __restrict__ rl1 = p1;
int * l1 = (int*) alloc (20);
if (l1 == rgi1)
link_error ();
if (l1 == rp1)
link_error ();
if (l1 == rl1)
link_error ();
if (l1 == gci1)
link_error ();
if (rl1 == rgi1)
link_error ();
if (rl1 == rp1)
link_error ();
if (rl1 == gci1)
link_error ();
if (rp1 == rp2)
link_error ();
if (rp1 == rgi1)
link_error ();
if (rp1 == gci1)
link_error ();
if (gci1 == rgi1)
link_error ();
}
/* There should be not link_error calls, if there is any the
optimization has failed */
/* ??? While we indeed don't handle some of these, a couple of the
restrict tests are incorrect. */
/* { dg-final { scan-tree-dump-times "link_error" 0 "ccp2" { xfail *-*-* } } } */
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