diff options
| -rw-r--r-- | gcc/ChangeLog | 7 | ||||
| -rw-r--r-- | gcc/tree-eh.c | 12 |
2 files changed, 11 insertions, 8 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 3f35061..0400f1b 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,10 @@ +2011-12-09 Jakub Jelinek <jakub@redhat.com> + + PR tree-optimization/51117 + * tree-eh.c (optimize_clobbers): Don't remove just one + clobber, but all consecutive clobbers before RESX. + Use gimple_clobber_p predicate. + 2011-12-09 Michael Meissner <meissner@the-meissners.org> * config/rs6000/rs6000.c (altivec_expand_builtin): Call diff --git a/gcc/tree-eh.c b/gcc/tree-eh.c index 7fc850a..7ab8a90 100644 --- a/gcc/tree-eh.c +++ b/gcc/tree-eh.c @@ -3180,17 +3180,13 @@ static void optimize_clobbers (basic_block bb) { gimple_stmt_iterator gsi = gsi_last_bb (bb); - for (gsi_prev (&gsi); !gsi_end_p (gsi);) + for (gsi_prev (&gsi); !gsi_end_p (gsi); gsi_prev (&gsi)) { gimple stmt = gsi_stmt (gsi); if (is_gimple_debug (stmt)) - { - gsi_prev (&gsi); - continue; - } - if (!gimple_assign_single_p (stmt) - || TREE_CODE (gimple_assign_lhs (stmt)) == SSA_NAME - || !TREE_CLOBBER_P (gimple_assign_rhs1 (stmt))) + continue; + if (!gimple_clobber_p (stmt) + || TREE_CODE (gimple_assign_lhs (stmt)) == SSA_NAME) return; unlink_stmt_vdef (stmt); gsi_remove (&gsi, true); |