1 /* { dg-do compile } */
2 /* { dg-options "-O -fdump-tree-ifcombine-details-blocks" } */
3
4 void bar (void);
5
6 void
foo1(unsigned int a)7 foo1 (unsigned int a)
8 {
9 if (a & 1)
10 goto heaven;
11 if (a & 4)
12 goto heaven;
13 return;
14
15 heaven:
16 bar ();
17 }
18
19 void
foo2(unsigned int a)20 foo2 (unsigned int a)
21 {
22 if (a & 1)
23 if (a & 4)
24 goto heaven;
25 return;
26
27 heaven:
28 bar ();
29 }
30
31
32 /* The special treatment of a & 1 != 0 in fold caused the pattern not
33 to be recognized due to extra conversions inserted. */
34
35 /* { dg-final { scan-tree-dump "optimizing bits or bits test" "ifcombine" } } */
36 /* { dg-final { scan-tree-dump "optimizing double bit test" "ifcombine" } } */
37 /* { dg-final { scan-tree-dump-not "Invalid sum" "ifcombine" } } */
38