diff options
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/tree-ssa-loop-unswitch.c | 4 |
2 files changed, 10 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 55d9708336b..d24599f7dcc 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2016-04-18 Jan Hubicka <jh@suse.cz> + + * tree-ssa-loop-unswitch.c (tree_unswitch_single_loop): Use also + max_loop_iterations_int. + (tree_unswitch_outer_loop): Likewise. + 2016-04-20 Bin Cheng <bin.cheng@arm.com> PR tree-optimization/69489 diff --git a/gcc/tree-ssa-loop-unswitch.c b/gcc/tree-ssa-loop-unswitch.c index dd6fd01256a..77acd66e997 100644 --- a/gcc/tree-ssa-loop-unswitch.c +++ b/gcc/tree-ssa-loop-unswitch.c @@ -223,6 +223,8 @@ tree_unswitch_single_loop (struct loop *loop, int num) /* If the loop is not expected to iterate, there is no need for unswitching. */ iterations = estimated_loop_iterations_int (loop); + if (iterations < 0) + iterations = max_loop_iterations_int (loop); if (iterations >= 0 && iterations <= 1) { if (dump_file && (dump_flags & TDF_DETAILS)) @@ -439,6 +441,8 @@ tree_unswitch_outer_loop (struct loop *loop) /* If the loop is not expected to iterate, there is no need for unswitching. */ iterations = estimated_loop_iterations_int (loop); + if (iterations < 0) + iterations = max_loop_iterations_int (loop); if (iterations >= 0 && iterations <= 1) { if (dump_file && (dump_flags & TDF_DETAILS)) |