diff options
Diffstat (limited to 'gcc/testsuite/gcc.dg/tree-ssa/pr21086.c')
| -rw-r--r-- | gcc/testsuite/gcc.dg/tree-ssa/pr21086.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/pr21086.c b/gcc/testsuite/gcc.dg/tree-ssa/pr21086.c new file mode 100644 index 000000000..f924d26cc --- /dev/null +++ b/gcc/testsuite/gcc.dg/tree-ssa/pr21086.c @@ -0,0 +1,24 @@ +/* { dg-do compile } */ +/* { dg-options "-O2 -fdump-tree-vrp1 -fdump-tree-dce1" } */ + +int +foo (int *p) +{ + int a = *p; + int b = p != 0; + + *p = b; + + if (b) + return a; + else + return 0; +} + +/* Target with fno-delete-null-pointer-checks should not fold checks */ +/* { dg-final { scan-tree-dump "Folding predicate " "vrp1" { target { ! keeps_null_pointer_checks } } } } */ +/* { dg-final { scan-tree-dump-times "Folding predicate " 0 "vrp1" { target { keeps_null_pointer_checks } } } } */ +/* { dg-final { scan-tree-dump-not "b_. =" "dce1" { target { ! avr-*-* } } } } */ +/* { dg-final { scan-tree-dump "b_. =" "dce1" { target { avr-*-* } } } } */ +/* { dg-final { cleanup-tree-dump "vrp1" } } */ +/* { dg-final { cleanup-tree-dump "dce1" } } */ |