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predict.c (tree_estimate_probability_driver): Normalize the loop when initializing the loop optimizer. 

2012-07-31  Dehao Chen  <dehao@google.com>

	* predict.c (tree_estimate_probability_driver): Normalize the
	loop when initializing the loop optimizer.

From-SVN: r190015
This commit is contained in:
Dehao Chen 2012-07-31 15:09:02 +00:00 committed by Dehao Chen
parent 86d4e13f06
commit aa36f90b55
4 changed files with 27 additions and 1 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2012-07-31 Dehao Chen <dehao@google.com>
* predict.c (tree_estimate_probability_driver): Normalize the
loop when initializing the loop optimizer.
2012-07-31 Richard Guenther <rguenther@suse.de> 2012-07-31 Richard Guenther <rguenther@suse.de>
* tree-flow.h (struct var_ann_d): Remove need_phi_state * tree-flow.h (struct var_ann_d): Remove need_phi_state

2
gcc/predict.c
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@ -2200,7 +2200,7 @@ tree_estimate_probability_driver (void)
{ {
unsigned nb_loops; unsigned nb_loops;
loop_optimizer_init (0); loop_optimizer_init (LOOPS_NORMAL);
if (dump_file && (dump_flags & TDF_DETAILS)) if (dump_file && (dump_flags & TDF_DETAILS))
flow_loops_dump (dump_file, NULL, 0); flow_loops_dump (dump_file, NULL, 0);

4
gcc/testsuite/ChangeLog
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@ -1,3 +1,7 @@
2012-07-31 Dehao Chen <dehao@google.com>
* gcc.dg/predict-7.c: New test.
2012-07-31 Janus Weil <janus@gcc.gnu.org> 2012-07-31 Janus Weil <janus@gcc.gnu.org>
PR fortran/54134 PR fortran/54134

17
gcc/testsuite/gcc.dg/predict-7.c Normal file
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@ -0,0 +1,17 @@
/* { dg-do compile } */
/* { dg-options "-O2 -fdump-tree-profile_estimate" } */
extern int global;
int bar (int);
void foo (int base)
{
int i;
while (global < 10)
for (i = base; i < 10; i++)
bar (i);
}
/* { dg-final { scan-tree-dump-times "loop branch heuristics" 0 "profile_estimate"} } */
/* { dg-final { cleanup-tree-dump "profile_estimate" } } */