diff options
Diffstat (limited to 'gcc/testsuite/gcc.dg/tree-ssa/update-unswitch-1.c')
| -rw-r--r-- | gcc/testsuite/gcc.dg/tree-ssa/update-unswitch-1.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/update-unswitch-1.c b/gcc/testsuite/gcc.dg/tree-ssa/update-unswitch-1.c new file mode 100644 index 000000000..499b78b01 --- /dev/null +++ b/gcc/testsuite/gcc.dg/tree-ssa/update-unswitch-1.c @@ -0,0 +1,24 @@ +/* { dg-do compile } */ +/* { dg-options "-O1 -funswitch-loops -fdump-tree-unswitch-blocks" } */ + +int bla(int p) +{ + unsigned i, s = 1; + + for (i = 4; i < 100; i++) + { + if (p) + s += i/2; + else + s *= i/2; + } + + return s; +} + +/* We used to make the probability that the first of the loops created + by unswitching is entered 100%, which is not correct. */ + +/* { dg-final { scan-tree-dump-not "Invalid sum" "unswitch"} } */ +/* { dg-final { scan-tree-dump-not "SUCC: 3 .100.0%" "unswitch"} } */ +/* { dg-final { cleanup-tree-dump "unswitch" } } */ |