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Commit 2af51b88 by Devang Patel Committed by Devang Patel
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Undo PR tree-optimization/18815 fix. 

From-SVN: r95803
parent 713101a6
Showing with 6 additions and 13 deletions
gcc/ChangeLog
2005-03-02 Devang Patel <dpatel@apple.com>
Undo PR tree-optimization/18815 fix.
2005-03-02 Devang Patel <dpatel@apple.com>
PR tree-optimization/18815
* tree-if-conv.c (combine_blocks): Adjust loop header edges for
......
gcc/tree-if-conv.c
......@@ -905,21 +905,10 @@ combine_blocks (struct loop *loop)
continue;
/* It is time to remove this basic block. First remove edges. */
while (EDGE_COUNT (bb->preds) > 0)
remove_edge (EDGE_PRED (bb, 0));
/* This is loop latch and loop does not have exit then do not
delete this basic block. Just remove its PREDS and reconnect
loop->header and loop->latch blocks. */
if (bb == loop->latch && loop->num_exits == 0)
{
make_edge (loop->header, loop->latch, EDGE_FALLTHRU);
set_immediate_dominator (CDI_DOMINATORS, loop->latch, loop->header);
continue;
}
while (EDGE_COUNT (bb->succs) > 0)
remove_edge (EDGE_SUCC (bb, 0));
while (EDGE_COUNT (bb->preds) > 0)
remove_edge (EDGE_PRED (bb, 0));
/* Remove labels and make stmts member of loop->header. */
for (bsi = bsi_start (bb); !bsi_end_p (bsi); )
......
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