On 30 September 2013 14:19:01 Richard Biener <rguent...@suse.de> wrote:
This fixes PR58554, pattern recognition in loop distribution now
needs to check whether all stmts are unconditionally executed.
Bootstrapped and tested on x86_64-unknown-linux-gnu, applied to trunk.
Richard.
2013-09-30 Richard Biener <rguent...@suse.de>
PR tree-optimization/58554
* tree-loop-distribution.c (classify_partition): Require unconditionally
executed stores for memcpy and memset recognition.
(tree_loop_distribution): Calculate dominance info.
* gcc.dg/torture/pr58554.c: New testcase.
Index: gcc/tree-loop-distribution.c
*************** out:
*** 1719,1724 ****
--- 1723,1729 ----
{
if (!cd)
{
+ calculate_dominance_info (CDI_DOMINATORS);
calculate_dominance_info (CDI_POST_DOMINATORS);
cd = new control_dependences (create_edge_list ());
free_dominance_info (CDI_POST_DOMINATORS);
Don't you have to free CDI_DOMINATORS too now, somewhere?
Thanks,
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