Hi!
This test apparently FAILs on s390x-linux, which is an effective target of
both logical_op_short_circuit and branch_cost.
The test has
/* { dg-additional-options "-mbranch-cost=2" { target branch_cost } } */
and that option effectively makes the target ! logical_op_short_circuit,
but the effective target just reflects the default setting. So, I think
it should expect 0 ifs rather than 2 if -mbranch-cost=2 is used and
2 when that option isn't used.
Tested on x86_64-linux (which is a branch_cost but not logical_op_short_circuit
effective target), Andreas, does this fix it on s390x-linux (I've only
looked at the optimized dump using a cross-compiler)?
Ok for trunk?
2018-11-22 Jakub Jelinek <ja...@redhat.com>
PR testsuite/85368
* gcc.dg/tree-ssa/phi-opt-11.c: For branch_cost targets, expect 0 ifs
rather than 0 or 2 depending on logical_op_short_circuit.
--- gcc/testsuite/gcc.dg/tree-ssa/phi-opt-11.c.jj 2018-01-17
12:03:37.768893116 +0100
+++ gcc/testsuite/gcc.dg/tree-ssa/phi-opt-11.c 2018-11-22 16:33:15.541947777
+0100
@@ -23,5 +23,5 @@ int h(int a, int b, int c, int d)
return a;
}
-/* { dg-final { scan-tree-dump-times "if" 0 "optimized" { target { !
logical_op_short_circuit } } } } */
-/* { dg-final { scan-tree-dump-times "if" 2 "optimized" { target
logical_op_short_circuit } } } */
+/* { dg-final { scan-tree-dump-times "if" 0 "optimized" { target { { !
logical_op_short_circuit } || branch_cost } } } } */
+/* { dg-final { scan-tree-dump-times "if" 2 "optimized" { target {
logical_op_short_circuit && { ! branch_cost } } } } } */
Jakub
