http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47892
Richard Guenther changed:
What|Removed |Added
Status|ASSIGNED|RESOLVED
Resolution|
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47892
--- Comment #7 from Richard Guenther 2011-04-20
15:50:38 UTC ---
Author: rguenth
Date: Wed Apr 20 15:50:26 2011
New Revision: 172774
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=172774
Log:
2011-04-20 Richard Guenther
PR tree-op
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47892
Richard Guenther changed:
What|Removed |Added
Status|NEW |ASSIGNED
AssignedTo|unassigned
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47892
--- Comment #6 from Richard Guenther 2011-02-25
10:57:30 UTC ---
On trunk fixed with a patch as simple as
Index: gcc/tree-if-conv.c
===
*** gcc/tree-if-conv.c (revision 170466)
---
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47892
--- Comment #5 from Richard Guenther 2011-02-25
10:37:40 UTC ---
PRE makes that better and we have
:
# i_39 = PHI
D.2691_6 = (long unsigned int) i_39;
D.2692_7 = D.2691_6 * 4;
D.2693_9 = arr_8(D) + D.2692_7;
or_10 = MEM[(float *)D.269
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47892
--- Comment #4 from Richard Guenther 2011-02-25
10:31:49 UTC ---
Ok, we vectorize on trunk only if I only make the PIO6 float. Otherwise
if-conversion does not handle (even with -fno-tree-pre)
if (or_10 > 5.2359879016876220703125e-1)
goto
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47892
--- Comment #3 from Richard Guenther 2011-02-25
10:24:21 UTC ---
Testcase:
#define PIO6 0.523598776f
#define SA5 2.74201854577e-06f
#define SA4 -1.98410347969e-04f
#define SA3 8.3320429e-03f
#define SA2 -1.666e-01f
void bestseries9(
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47892
Richard Guenther changed:
What|Removed |Added
Keywords||missed-optimization
Status
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47892
--- Comment #1 from jeremysalwen at gmail dot com 2011-02-25 10:19:58 UTC ---
Note, even when switching to floating point constants:
#define PIO6 0.523598776f
#define SA5 2.74201854577e-06f
#define SA4 -1.98410347969e-04f
#define SA3 8.332042
