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* [Bug middle-end/44722] New: [4.6 Regression] Long compile time or infinite loop
@ 2010-06-30 5:30 jvdelisle at gcc dot gnu dot org
2010-06-30 8:34 ` [Bug middle-end/44722] " rguenth at gcc dot gnu dot org
` (6 more replies)
0 siblings, 7 replies; 8+ messages in thread
From: jvdelisle at gcc dot gnu dot org @ 2010-06-30 5:30 UTC (permalink / raw)
To: gcc-bugs
gfortran -O2 array_reference_1.f90 just hangs. I have to go in and kill it
manually. This is just one example. There were several failures before I
interrupted make -k check-fortran in order to recover enough CPU cycles to then
go in an kill f951 that was left running.
No problems at -O1 so maybe middle-end?
--
Summary: [4.6 Regression] Long compile time or infinite loop
Product: gcc
Version: 4.6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: middle-end
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: jvdelisle at gcc dot gnu dot org
GCC host triplet: x86-64-gnu-linux
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44722
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug middle-end/44722] [4.6 Regression] Long compile time or infinite loop
2010-06-30 5:30 [Bug middle-end/44722] New: [4.6 Regression] Long compile time or infinite loop jvdelisle at gcc dot gnu dot org
@ 2010-06-30 8:34 ` rguenth at gcc dot gnu dot org
2010-06-30 9:51 ` rguenth at gcc dot gnu dot org
` (5 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: rguenth at gcc dot gnu dot org @ 2010-06-30 8:34 UTC (permalink / raw)
To: gcc-bugs
--
rguenth at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |4.6.0
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44722
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug middle-end/44722] [4.6 Regression] Long compile time or infinite loop
2010-06-30 5:30 [Bug middle-end/44722] New: [4.6 Regression] Long compile time or infinite loop jvdelisle at gcc dot gnu dot org
2010-06-30 8:34 ` [Bug middle-end/44722] " rguenth at gcc dot gnu dot org
@ 2010-06-30 9:51 ` rguenth at gcc dot gnu dot org
2010-06-30 9:56 ` rguenth at gcc dot gnu dot org
` (4 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: rguenth at gcc dot gnu dot org @ 2010-06-30 9:51 UTC (permalink / raw)
To: gcc-bugs
------- Comment #1 from rguenth at gcc dot gnu dot org 2010-06-30 09:51 -------
Same issue when building libjava. We run out of virtual memory.
from gdb I can see we run amok in peephole2_optimize. So that's again
bernds patch.
--
rguenth at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |bernds at gcc dot gnu dot
| |org
Status|UNCONFIRMED |NEW
Ever Confirmed|0 |1
Last reconfirmed|0000-00-00 00:00:00 |2010-06-30 09:51:17
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44722
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug middle-end/44722] [4.6 Regression] Long compile time or infinite loop
2010-06-30 5:30 [Bug middle-end/44722] New: [4.6 Regression] Long compile time or infinite loop jvdelisle at gcc dot gnu dot org
2010-06-30 8:34 ` [Bug middle-end/44722] " rguenth at gcc dot gnu dot org
2010-06-30 9:51 ` rguenth at gcc dot gnu dot org
@ 2010-06-30 9:56 ` rguenth at gcc dot gnu dot org
2010-06-30 10:17 ` [Bug rtl-optimization/44722] [4.6 Regression] Bootstrap fails during libjava rguenth at gcc dot gnu dot org
` (3 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: rguenth at gcc dot gnu dot org @ 2010-06-30 9:56 UTC (permalink / raw)
To: gcc-bugs
------- Comment #2 from rguenth at gcc dot gnu dot org 2010-06-30 09:55 -------
We're peepholing in circles I guess?
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44722
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug rtl-optimization/44722] [4.6 Regression] Bootstrap fails during libjava
2010-06-30 5:30 [Bug middle-end/44722] New: [4.6 Regression] Long compile time or infinite loop jvdelisle at gcc dot gnu dot org
` (2 preceding siblings ...)
2010-06-30 9:56 ` rguenth at gcc dot gnu dot org
@ 2010-06-30 10:17 ` rguenth at gcc dot gnu dot org
2010-06-30 10:32 ` rguenth at gcc dot gnu dot org
` (2 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: rguenth at gcc dot gnu dot org @ 2010-06-30 10:17 UTC (permalink / raw)
To: gcc-bugs
------- Comment #3 from rguenth at gcc dot gnu dot org 2010-06-30 10:16 -------
This issue causes a bootstrap fail in libjava on x86_64-linux.
--
rguenth at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Component|middle-end |rtl-optimization
Keywords| |build
Summary|[4.6 Regression] Long |[4.6 Regression] Bootstrap
|compile time or infinite |fails during libjava
|loop |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44722
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug rtl-optimization/44722] [4.6 Regression] Bootstrap fails during libjava
2010-06-30 5:30 [Bug middle-end/44722] New: [4.6 Regression] Long compile time or infinite loop jvdelisle at gcc dot gnu dot org
` (3 preceding siblings ...)
2010-06-30 10:17 ` [Bug rtl-optimization/44722] [4.6 Regression] Bootstrap fails during libjava rguenth at gcc dot gnu dot org
@ 2010-06-30 10:32 ` rguenth at gcc dot gnu dot org
2010-06-30 11:10 ` rguenth at gcc dot gnu dot org
2010-06-30 11:10 ` rguenth at gcc dot gnu dot org
6 siblings, 0 replies; 8+ messages in thread
From: rguenth at gcc dot gnu dot org @ 2010-06-30 10:32 UTC (permalink / raw)
To: gcc-bugs
------- Comment #4 from rguenth at gcc dot gnu dot org 2010-06-30 10:32 -------
Index: gcc/config/i386/i386.md
===================================================================
--- gcc/config/i386/i386.md (revision 161594)
+++ gcc/config/i386/i386.md (working copy)
@@ -4729,6 +4729,7 @@ (define_peephole2
(set (match_operand:SSEMODEI24 2 "register_operand" "")
(fix:SSEMODEI24 (match_dup 0)))]
"TARGET_SHORTEN_X87_SSE
+ && !(TARGET_AVOID_VECTOR_DECODE && optimize_insn_for_speed_p ())
&& peep2_reg_dead_p (2, operands[0])"
[(set (match_dup 2) (fix:SSEMODEI24 (match_dup 1)))]
"")
fixes array_reference_1.f90, checking bootstrap now.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44722
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug rtl-optimization/44722] [4.6 Regression] Bootstrap fails during libjava
2010-06-30 5:30 [Bug middle-end/44722] New: [4.6 Regression] Long compile time or infinite loop jvdelisle at gcc dot gnu dot org
` (4 preceding siblings ...)
2010-06-30 10:32 ` rguenth at gcc dot gnu dot org
@ 2010-06-30 11:10 ` rguenth at gcc dot gnu dot org
2010-06-30 11:10 ` rguenth at gcc dot gnu dot org
6 siblings, 0 replies; 8+ messages in thread
From: rguenth at gcc dot gnu dot org @ 2010-06-30 11:10 UTC (permalink / raw)
To: gcc-bugs
------- Comment #5 from rguenth at gcc dot gnu dot org 2010-06-30 11:09 -------
Fixed.
--
rguenth at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution| |FIXED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44722
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug rtl-optimization/44722] [4.6 Regression] Bootstrap fails during libjava
2010-06-30 5:30 [Bug middle-end/44722] New: [4.6 Regression] Long compile time or infinite loop jvdelisle at gcc dot gnu dot org
` (5 preceding siblings ...)
2010-06-30 11:10 ` rguenth at gcc dot gnu dot org
@ 2010-06-30 11:10 ` rguenth at gcc dot gnu dot org
6 siblings, 0 replies; 8+ messages in thread
From: rguenth at gcc dot gnu dot org @ 2010-06-30 11:10 UTC (permalink / raw)
To: gcc-bugs
------- Comment #6 from rguenth at gcc dot gnu dot org 2010-06-30 11:10 -------
Subject: Bug 44722
Author: rguenth
Date: Wed Jun 30 11:09:37 2010
New Revision: 161597
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=161597
Log:
2010-06-30 Richard Guenther <rguenther@suse.de>
PR target/44722
* config/i386/i386.md (peephole2 for fix:SSEMODEI24): Guard
against oscillation with reverse peephole2.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/config/i386/i386.md
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44722
^ permalink raw reply [flat|nested] 8+ messages in thread
end of thread, other threads:[~2010-06-30 11:10 UTC | newest]
Thread overview: 8+ messages (download: mbox.gz / follow: Atom feed)
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2010-06-30 5:30 [Bug middle-end/44722] New: [4.6 Regression] Long compile time or infinite loop jvdelisle at gcc dot gnu dot org
2010-06-30 8:34 ` [Bug middle-end/44722] " rguenth at gcc dot gnu dot org
2010-06-30 9:51 ` rguenth at gcc dot gnu dot org
2010-06-30 9:56 ` rguenth at gcc dot gnu dot org
2010-06-30 10:17 ` [Bug rtl-optimization/44722] [4.6 Regression] Bootstrap fails during libjava rguenth at gcc dot gnu dot org
2010-06-30 10:32 ` rguenth at gcc dot gnu dot org
2010-06-30 11:10 ` rguenth at gcc dot gnu dot org
2010-06-30 11:10 ` rguenth at gcc dot gnu dot org
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