rt_gccstream/gcc/testsuite/gcc.dg/tree-ssa/vrp18.c

35 lines
587 B
C

/* { dg-do compile } */
/* { dg-options "-O2 -fdump-tree-vrp1" } */
static int blocksize = 4096;
int bar (int);
void foo (void)
{
int toread;
int bytes;
static char eof_reached = 0;
toread = blocksize;
bytes = 1;
while (toread != 0)
{
bytes = bar (toread);
if (bytes <= 0)
{
if (bytes < 0)
continue;
break;
}
toread -= bytes;
}
if (bytes == 0)
eof_reached = 1;
}
/* { dg-final { scan-tree-dump-times "Simplified relational" 1 "vrp1" } } */
/* { dg-final { cleanup-tree-dump "vrp1" } } */