29 lines
549 B
C
29 lines
549 B
C
/* { dg-do compile } */
|
|
/* { dg-options "-fwrapv -O1 -ftree-vrp -fdump-tree-vrp1" } */
|
|
|
|
extern void abort ();
|
|
extern void exit (int);
|
|
|
|
int f (int a) {
|
|
if (a != 0) {
|
|
a = a > 0 ? a : -a;
|
|
if (a == 0)
|
|
return 1;
|
|
return 0;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int g (int b) {
|
|
if (b != 0) {
|
|
b = b > 0 ? b : -b;
|
|
if (b != 0)
|
|
return 0;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
/* { dg-final { scan-tree-dump "Folding predicate a_. == 0 to 0" "vrp1" } } */
|
|
/* { dg-final { scan-tree-dump "Folding predicate b_. != 0 to 1" "vrp1" } } */
|
|
/* { dg-final { cleanup-tree-dump "vrp1" } } */
|