diff options
Diffstat (limited to 'gcc/loop-iv.c')
| -rw-r--r-- | gcc/loop-iv.c | 12 |
1 files changed, 3 insertions, 9 deletions
diff --git a/gcc/loop-iv.c b/gcc/loop-iv.c index 01df85a7264..55faf4a7097 100644 --- a/gcc/loop-iv.c +++ b/gcc/loop-iv.c @@ -1781,8 +1781,6 @@ simplify_using_initial_values (struct loop *loop, enum rtx_code op, rtx *expr) while (1) { - basic_block tmp_bb; - insn = BB_END (e->src); if (any_condjump_p (insn)) { @@ -1814,14 +1812,10 @@ simplify_using_initial_values (struct loop *loop, enum rtx_code op, rtx *expr) } } - /* This is a bit subtle. Store away e->src in tmp_bb, since we - modify `e' and this can invalidate the subsequent count of - e->src's predecessors by looking at the wrong block. */ - tmp_bb = e->src; - e = EDGE_PRED (tmp_bb, 0); - if (EDGE_COUNT (tmp_bb->preds) > 1 - || e->src == ENTRY_BLOCK_PTR) + if (!single_pred_p (e->src) + || single_pred (e->src) == ENTRY_BLOCK_PTR) break; + e = single_pred_edge (e->src); } FREE_REG_SET (altered); |