From: Maxim Kuvyrkov <maxim@codesourcery.com>
Date: Tue, 27 Jul 2010 19:12:21 +0000 (+0000)
Subject: dbgcnt.def (hoist_insn): New debug counter.
X-Git-Tag: releases/gcc-4.6.0~5390
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=62a3f636a22301e50039522b042daea292b49bfd;p=thirdparty%2Fgcc.git

dbgcnt.def (hoist_insn): New debug counter.

	* dbgcnt.def (hoist_insn): New debug counter.
	* gcse.c (hoist_code): Use it.

From-SVN: r162586
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index e4435ba45ea3..7b6602074966 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2010-07-27  Maxim Kuvyrkov  <maxim@codesourcery.com>
+
+	* dbgcnt.def (hoist_insn): New debug counter.
+	* gcse.c (hoist_code): Use it.
+
 2010-07-27  Xinliang David Li  <davidxl@google.com>
 
 	* tree-ssa-loop-ivopts.c (niter_for_exit): New parameter.
diff --git a/gcc/dbgcnt.def b/gcc/dbgcnt.def
index 0d73d942073a..a63cb1be550c 100644
--- a/gcc/dbgcnt.def
+++ b/gcc/dbgcnt.def
@@ -158,6 +158,7 @@ DEBUG_COUNTER (gcse2_delete)
 DEBUG_COUNTER (global_alloc_at_func)
 DEBUG_COUNTER (global_alloc_at_reg)
 DEBUG_COUNTER (hoist)
+DEBUG_COUNTER (hoist_insn)
 DEBUG_COUNTER (ia64_sched2)
 DEBUG_COUNTER (if_conversion)
 DEBUG_COUNTER (if_conversion_tree)
diff --git a/gcc/gcse.c b/gcc/gcse.c
index 6f345ccbce62..e506d47df96c 100644
--- a/gcc/gcse.c
+++ b/gcc/gcse.c
@@ -4330,7 +4330,7 @@ hoist_code (void)
 		 the vast majority of hoistable expressions are only movable
 		 from two successors, so raising this threshold is likely
 		 to nullify any benefit we get from code hoisting.  */
-	      if (hoistable > 1)
+	      if (hoistable > 1 && dbg_cnt (hoist_insn))
 		{
 		  SET_BIT (hoist_exprs[bb->index], i);
 		  found = 1;