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dbgcnt.def (hoist_insn): New debug counter. 

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

From-SVN: r162586
This commit is contained in:
Maxim Kuvyrkov 2010-07-27 19:12:21 +00:00 committed by Maxim Kuvyrkov
parent e2102efc00
commit 62a3f636a2
3 changed files with 7 additions and 1 deletions
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5
gcc/ChangeLog
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@ -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.

1
gcc/dbgcnt.def
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@ -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)

2
gcc/gcse.c
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@ -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;