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Diffstat (limited to 'gcc/tree-ssa-loop-im.c')
| -rw-r--r-- | gcc/tree-ssa-loop-im.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/gcc/tree-ssa-loop-im.c b/gcc/tree-ssa-loop-im.c index fcca099..b399bd0 100644 --- a/gcc/tree-ssa-loop-im.c +++ b/gcc/tree-ssa-loop-im.c @@ -2402,6 +2402,7 @@ sm_seq_valid_bb (class loop *loop, basic_block bb, tree vdef, if (edge_seq[i].second == sm_ord) bitmap_set_bit (refs_not_supported, edge_seq[i].first); first_edge_seq[i].second = sm_other; + first_edge_seq[i].from = NULL_TREE; } /* sm_other prevails. */ else if (first_edge_seq[i].second != edge_seq[i].second) @@ -2410,7 +2411,14 @@ sm_seq_valid_bb (class loop *loop, basic_block bb, tree vdef, gcc_assert (bitmap_bit_p (refs_not_supported, first_edge_seq[i].first)); first_edge_seq[i].second = sm_other; + first_edge_seq[i].from = NULL_TREE; } + else if (first_edge_seq[i].second == sm_other + && first_edge_seq[i].from != NULL_TREE + && (edge_seq[i].from == NULL_TREE + || !operand_equal_p (first_edge_seq[i].from, + edge_seq[i].from, 0))) + first_edge_seq[i].from = NULL_TREE; } /* Any excess elements become sm_other since they are now coonditionally executed. */ |