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* [gcc/devel/loop-unswitch-support-switches] Update scanned pattern and huge switches handling.
@ 2022-01-07 8:57 Martin Liska
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From: Martin Liska @ 2022-01-07 8:57 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:694b57cbf44833252240954dff8f52858ee57e4c
commit 694b57cbf44833252240954dff8f52858ee57e4c
Author: Martin Liska <mliska@suse.cz>
Date: Fri Jan 7 09:56:34 2022 +0100
Update scanned pattern and huge switches handling.
Diff:
---
gcc/testsuite/gcc.dg/loop-unswitch-11.c | 2 +-
gcc/tree-ssa-loop-unswitch.c | 7 +++----
2 files changed, 4 insertions(+), 5 deletions(-)
diff --git a/gcc/testsuite/gcc.dg/loop-unswitch-11.c b/gcc/testsuite/gcc.dg/loop-unswitch-11.c
index 310e4f40423..2fdc3632ee9 100644
--- a/gcc/testsuite/gcc.dg/loop-unswitch-11.c
+++ b/gcc/testsuite/gcc.dg/loop-unswitch-11.c
@@ -39,7 +39,7 @@ foo(double *a, double *b, double *c, double *d, double *r, int size, int order)
return 0;
}
-/* { dg-final { scan-tree-dump-times "Unswitching loop on condition: order_.* >= 5 & order_.* <= 6 \\| order_.* == 9" 1 "unswitch" } } */
+/* { dg-final { scan-tree-dump-times "Unswitching loop on condition: order.* \\+ 4294967291.*order.* == 9" 1 "unswitch" } } */
/* { dg-final { scan-tree-dump-times "Unswitching loop on condition: order.* == 1" 1 "unswitch" } } */
/* { dg-final { scan-tree-dump-times "Unswitching loop on condition: order.* == 2" 1 "unswitch" } } */
/* { dg-final { scan-tree-dump-times "Unswitching loop on condition: order.* == 3" 1 "unswitch" } } */
diff --git a/gcc/tree-ssa-loop-unswitch.c b/gcc/tree-ssa-loop-unswitch.c
index c164fe2faa0..4614664348b 100644
--- a/gcc/tree-ssa-loop-unswitch.c
+++ b/gcc/tree-ssa-loop-unswitch.c
@@ -477,11 +477,10 @@ find_unswitching_predicates_for_bb (basic_block bb, class loop *loop,
{
unswitch_predicate *predicate
= new unswitch_predicate (expr, idx, edge_index);
- ranger->gori ().outgoing_edge_range_p (predicate->true_range, e,
- idx, *get_global_range_query ());
- /* Huge switches are not supported by Ranger. */
- if (predicate->true_range.undefined_p ())
+ if (!ranger->gori ().outgoing_edge_range_p (predicate->true_range, e,
+ idx, *get_global_range_query ()))
{
+ /* Huge switches are not supported by Ranger. */
delete predicate;
return;
}
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