diff options
Diffstat (limited to 'gcc/testsuite/gcc.dg/tree-ssa/vrp06.c')
| -rw-r--r-- | gcc/testsuite/gcc.dg/tree-ssa/vrp06.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/vrp06.c b/gcc/testsuite/gcc.dg/tree-ssa/vrp06.c new file mode 100644 index 00000000000..a92db95749a --- /dev/null +++ b/gcc/testsuite/gcc.dg/tree-ssa/vrp06.c @@ -0,0 +1,31 @@ +/* { dg-do compile } */ +/* { dg-options "-O2 -fdump-tree-vrp" } */ + +foo (int i, int j, int a) +{ + if (i >= 10) + if (i <= 30) + if (i == j) + { + a--; + + /* This should fold to 'if (0)'. */ + if (i < 0) + i = baz (); + + /* This should fold to 'if (1)'. */ + if (j > 0) + a--; + + /* This should fold to 'if (0)'. */ + if (i != j) + return 0; + } + + return i + a + j; +} + +/* { dg-final { scan-tree-dump-times "Folding predicate i_.*to 0" 1 "vrp" } } */ +/* { dg-final { scan-tree-dump-times "Folding predicate j_.*to 1" 1 "vrp" } } */ +/* { dg-final { scan-tree-dump-times "Folding predicate i_.*to 0" 1 "vrp" } } */ +/* { dg-final { cleanup-tree-dump "vrp" } } */ |