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dbgcnt.def (dom_unreachable_edges): New debug counter. 

* dbgcnt.def (dom_unreachable_edges): New debug counter.
	* tree-ssa-dom.c: Include dbgcnt.h
	(dom_opt_dom_walker::before_dom_children): Handle the new counter.

From-SVN: r231896
This commit is contained in:
Jeff Law 2015-12-21 20:09:08 -07:00 committed by Jeff Law
parent 399f5feb92
commit 102a9b4320
3 changed files with 11 additions and 0 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2015-12-21 Jeff Law <law@redhat.com>
* dbgcnt.def (dom_unreachable_edges): New debug counter.
* tree-ssa-dom.c: Include dbgcnt.h
(dom_opt_dom_walker::before_dom_children): Handle the new counter.
2015-12-21 Andrew Pinski <apinski@cavium.com>
* config/aarch64/aarch64-option-extensions.def (LSE): Change

1
gcc/dbgcnt.def
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@ -192,3 +192,4 @@ DEBUG_COUNTER (treepre_insert)
DEBUG_COUNTER (tree_sra)
DEBUG_COUNTER (vect_loop)
DEBUG_COUNTER (vect_slp)
DEBUG_COUNTER (dom_unreachable_edges)

4
gcc/tree-ssa-dom.c
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@ -44,6 +44,7 @@ along with GCC; see the file COPYING3. If not see
#include "tree-ssa-dom.h"
#include "gimplify.h"
#include "tree-cfgcleanup.h"
#include "dbgcnt.h"
/* This file implements optimizations on the dominator tree. */
@ -1369,6 +1370,9 @@ dom_opt_dom_walker::before_dom_children (basic_block bb)
/* Now prepare to process dominated blocks. */
record_edge_info (bb);
cprop_into_successor_phis (bb, m_const_and_copies);
if (taken_edge && !dbg_cnt (dom_unreachable_edges))
return NULL;
return taken_edge;
}