diff options
| author | Jakub Jelinek <jakub@redhat.com> | 2010-10-14 19:34:16 +0000 |
|---|---|---|
| committer | Jakub Jelinek <jakub@redhat.com> | 2010-10-14 19:34:16 +0000 |
| commit | 2a412654321c1930abbffbbebe24e4c7e94c7525 (patch) | |
| tree | fa74bd9904241d2b10c835551dc7380289bac5d2 /gcc/tree-if-conv.c | |
| parent | df172e18cce3cba9c628f038528c15d09aa8bd4f (diff) | |
PR tree-optimization/46008
* tree-if-conv.c (predicate_bbs): Try to canonicalize c2
if possible.
git-svn-id: https://gcc.gnu.org/svn/gcc/trunk@165476 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/tree-if-conv.c')
| -rw-r--r-- | gcc/tree-if-conv.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/gcc/tree-if-conv.c b/gcc/tree-if-conv.c index e92090f9085..642dbda24cb 100644 --- a/gcc/tree-if-conv.c +++ b/gcc/tree-if-conv.c @@ -915,7 +915,7 @@ predicate_bbs (loop_p loop) case GIMPLE_COND: { - tree c2; + tree c2, tem; edge true_edge, false_edge; location_t loc = gimple_location (stmt); tree c = fold_build2_loc (loc, gimple_cond_code (stmt), @@ -932,6 +932,9 @@ predicate_bbs (loop_p loop) /* If C is false, then FALSE_EDGE is taken. */ c2 = invert_truthvalue_loc (loc, unshare_expr (c)); + tem = canonicalize_cond_expr_cond (c2); + if (tem) + c2 = tem; add_to_dst_predicate_list (loop, false_edge, cond, c2); cond = NULL_TREE; |