Reorganize clean_up_phi() so that the tests in the loop
are more sequential. It functionally identical but will
help to detect other, less trivial, trivial phi-nodes.
Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@xxxxxxxxx>
---
simplify.c | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/simplify.c b/simplify.c
index e9995a546..f6471a4ef 100644
--- a/simplify.c
+++ b/simplify.c
@@ -187,12 +187,13 @@ static int clean_up_phi(struct instruction *insn)
def = phi->def;
if (def->phi_src == VOID || !def->bb)
continue;
- if (last) {
- if (last->phi_src != def->phi_src)
- same = 0;
+ if (!last) {
+ last = def;
continue;
}
- last = def;
+ if (last->phi_src == def->phi_src)
+ continue;
+ same = 0;
} END_FOR_EACH_PTR(phi);
if (same) {
--
2.18.0
