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* [Bug rtl-optimization/55845] New: 454.calculix miscompares with -march=btver2 -O3 -ffastmath -fschedule-insns -mvzeroupper for test data run
@ 2013-01-02 9:28 venkataramanan.kumar at amd dot com
2013-01-02 10:10 ` [Bug rtl-optimization/55845] " ubizjak at gmail dot com
` (13 more replies)
0 siblings, 14 replies; 15+ messages in thread
From: venkataramanan.kumar at amd dot com @ 2013-01-02 9:28 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55845
Bug #: 55845
Summary: 454.calculix miscompares with -march=btver2 -O3
-ffastmath -fschedule-insns -mvzeroupper for test data
run
Classification: Unclassified
Product: gcc
Version: 4.8.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: rtl-optimization
AssignedTo: unassigned@gcc.gnu.org
ReportedBy: venkataramanan.kumar@amd.com
Host: x86_64-unknown-linux-gnu
Target: x86_64-unknown-linux-gnu
Build: x86_64-unknown-linux-gnu
GCC revision used: 194705
Flags used: -march=btver2 -O3 -ffastmath -fschedule-insns -mvzeroupper
Observation:
(Snip)
*** Miscompare of beampic.dat; for details see
/local/home/vekumar/specruns/benchspec/CPU2006/454.calculix/run/run_base_test_gcc480_bt_sched.exe_nofma.0000/beampic.dat.mis
Error: 1x454.calculix
Producing Raw Reports
(Snip)
On triaging further the file SPOOLES/Utilities/src/Utilities_DV.Utilities_DV.c
when compiled with -march=btver2 -O3 -ffastmath -fschedule-insns -mvzeroupper
seems to schedule vzeroupper incorrectly.
vzeroupper will clobber all ymm registers, so should not be moved arround.
Also using -march=corei7-avx seems to have problem.
I am drilling down further.
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug rtl-optimization/55845] 454.calculix miscompares with -march=btver2 -O3 -ffastmath -fschedule-insns -mvzeroupper for test data run
2013-01-02 9:28 [Bug rtl-optimization/55845] New: 454.calculix miscompares with -march=btver2 -O3 -ffastmath -fschedule-insns -mvzeroupper for test data run venkataramanan.kumar at amd dot com
@ 2013-01-02 10:10 ` ubizjak at gmail dot com
2013-01-02 10:15 ` ubizjak at gmail dot com
` (12 subsequent siblings)
13 siblings, 0 replies; 15+ messages in thread
From: ubizjak at gmail dot com @ 2013-01-02 10:10 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55845
Uros Bizjak <ubizjak at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |vbyakovl23 at gmail dot com
--- Comment #1 from Uros Bizjak <ubizjak at gmail dot com> 2013-01-02 10:10:01 UTC ---
Adding CC.
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug rtl-optimization/55845] 454.calculix miscompares with -march=btver2 -O3 -ffastmath -fschedule-insns -mvzeroupper for test data run
2013-01-02 9:28 [Bug rtl-optimization/55845] New: 454.calculix miscompares with -march=btver2 -O3 -ffastmath -fschedule-insns -mvzeroupper for test data run venkataramanan.kumar at amd dot com
2013-01-02 10:10 ` [Bug rtl-optimization/55845] " ubizjak at gmail dot com
@ 2013-01-02 10:15 ` ubizjak at gmail dot com
2013-01-04 6:41 ` vbyakovl23 at gmail dot com
` (11 subsequent siblings)
13 siblings, 0 replies; 15+ messages in thread
From: ubizjak at gmail dot com @ 2013-01-02 10:15 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55845
--- Comment #2 from Uros Bizjak <ubizjak at gmail dot com> 2013-01-02 10:15:16 UTC ---
It looks to me that scheduler is doing something with unspec_volatile
instructions, since vzeroupper insertion will be cancelled if there are live
call-saved SSE registers at the insertion point. Please see
ix86_avx_emit_vzeroupper function in i386.c
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug rtl-optimization/55845] 454.calculix miscompares with -march=btver2 -O3 -ffastmath -fschedule-insns -mvzeroupper for test data run
2013-01-02 9:28 [Bug rtl-optimization/55845] New: 454.calculix miscompares with -march=btver2 -O3 -ffastmath -fschedule-insns -mvzeroupper for test data run venkataramanan.kumar at amd dot com
2013-01-02 10:10 ` [Bug rtl-optimization/55845] " ubizjak at gmail dot com
2013-01-02 10:15 ` ubizjak at gmail dot com
@ 2013-01-04 6:41 ` vbyakovl23 at gmail dot com
2013-01-04 8:13 ` ubizjak at gmail dot com
` (10 subsequent siblings)
13 siblings, 0 replies; 15+ messages in thread
From: vbyakovl23 at gmail dot com @ 2013-01-04 6:41 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55845
--- Comment #3 from Vladimir Yakovlev <vbyakovl23 at gmail dot com> 2013-01-04 06:40:44 UTC ---
The test fails corei7-avx also. I build a simple reproducer.
-------------------------------------------------------------
#include <stdio.h>
#define N 100
double
foo (
int size,
double y[],
double x[]
)
{
double sum = 0.0 ;
int i ;
for (i = 0, sum = 0. ; i < size ; i++)
sum += y[i] * x[i] ;
return(sum);
}
int main ()
{
double x[N];
double y[N];
double s;
int i;
for (i = 0; i < N; i++)
{
x[i] = i;
y[i] = i;
}
s = foo (N, y, x);
printf("%s\n", s == 328350 ? "pass" : "fail");
}
------------------------------------------------------
$ gcc -mavx -g -static -o t -O3 -ffast-math -march=corei7 t.c -fno-inline &&
./t
pass
$ gcc -fschedule-insns -mavx -g -static -o t -O3 -ffast-math -march=corei7
t.c -fno-inline && ./t
fail
Responsible phase is jump2. To switch off the phase I did changes
diff --git a/gcc/cfgcleanup.c b/gcc/cfgcleanup.c
index 5d142e9..be04c5d 100644
--- a/gcc/cfgcleanup.c
+++ b/gcc/cfgcleanup.c
@@ -3070,6 +3070,7 @@ struct rtl_opt_pass pass_jump =
static unsigned int
execute_jump2 (void)
{
+ if (!getenv("NOJMP2"))
cleanup_cfg (flag_crossjumping ? CLEANUP_CROSSJUMP : 0);
return 0;
}
env NOJMP2=1 gcc -fschedule-insns -mavx -g -static -o t -O3 -ffast-math
-march=corei7 t.c -fno-inline && ./t
pass
I used compiler
Target: x86_64-unknown-linux-gnu
Configured with: ../gcc/configure CFLAGS='-O0 -g3' CXXFLAGS='-O0 -g3'
--prefix=/gnumnt/msticlxl16_users/vbyakovl/workspaces/gcc/install
--enable-clocale=gnu --disable-bootstrap --with-system-zlib --enable-shared
--with-demangler-in-ld --with-fpmath=sse --with-arch=corei7-avx
--with-cpu=corei7-avx --enable-languages=c,c++,fortran,java,lto,objc
--no-create --no-recursion
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug rtl-optimization/55845] 454.calculix miscompares with -march=btver2 -O3 -ffastmath -fschedule-insns -mvzeroupper for test data run
2013-01-02 9:28 [Bug rtl-optimization/55845] New: 454.calculix miscompares with -march=btver2 -O3 -ffastmath -fschedule-insns -mvzeroupper for test data run venkataramanan.kumar at amd dot com
` (2 preceding siblings ...)
2013-01-04 6:41 ` vbyakovl23 at gmail dot com
@ 2013-01-04 8:13 ` ubizjak at gmail dot com
2013-01-04 9:12 ` venkataramanan.kumar at amd dot com
` (9 subsequent siblings)
13 siblings, 0 replies; 15+ messages in thread
From: ubizjak at gmail dot com @ 2013-01-04 8:13 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55845
Uros Bizjak <ubizjak at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2013-01-04
Ever Confirmed|0 |1
--- Comment #4 from Uros Bizjak <ubizjak at gmail dot com> 2013-01-04 08:13:03 UTC ---
Please note how unspec_volatile vzeroupper (insn 225) moves above conditional
jump comparison, passing many instructions:
_.c.218r.csa:
...
110: {r8:SI=r8:SI+r11:SI;clobber flags:CC;}
REG_UNUSED flags:CC
111: flags:CCZ=cmp(bx:SI,r11:SI)
REG_DEAD r11:SI
REG_DEAD bx:SI
105: xmm2:V4DF=vec_select(vec_concat(xmm1:V4DF,xmm1:V4DF),parallel)
106: xmm1:V4DF=xmm1:V4DF+xmm2:V4DF
REG_DEAD xmm2:V4DF
234: xmm1:V2DF=xmm1:V2DF
235: xmm1:DF=xmm1:DF
109: xmm0:DF=xmm0:DF+xmm1:DF
REG_DEAD xmm1:DF
112: pc={(flags:CCZ==0)?L230:pc}
REG_DEAD flags:CCZ
REG_BR_PROB 0xd06
226: NOTE_INSN_BASIC_BLOCK 22
225: unspec/v[0] 43
113: L113:
114: NOTE_INSN_BASIC_BLOCK 23
...
_.c.219r.jump2:
...
110: {r8:SI=r8:SI+r11:SI;clobber flags:CC;}
REG_UNUSED flags:CC
225: unspec/v[0] 43
111: flags:CCZ=cmp(bx:SI,r11:SI)
REG_DEAD r11:SI
REG_DEAD bx:SI
105: xmm2:V4DF=vec_select(vec_concat(xmm1:V4DF,xmm1:V4DF),parallel)
106: xmm1:V4DF=xmm1:V4DF+xmm2:V4DF
REG_DEAD xmm2:V4DF
109: xmm0:DF=xmm0:DF+xmm1:DF
REG_DEAD xmm1:DF
112: pc={(flags:CCZ==0)?L231:pc}
REG_DEAD flags:CCZ
REG_BR_PROB 0xd06
113: L113:
114: NOTE_INSN_BASIC_BLOCK 23
...
Confirmed as rtl-optimization infrastructure problem.
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug rtl-optimization/55845] 454.calculix miscompares with -march=btver2 -O3 -ffastmath -fschedule-insns -mvzeroupper for test data run
2013-01-02 9:28 [Bug rtl-optimization/55845] New: 454.calculix miscompares with -march=btver2 -O3 -ffastmath -fschedule-insns -mvzeroupper for test data run venkataramanan.kumar at amd dot com
` (3 preceding siblings ...)
2013-01-04 8:13 ` ubizjak at gmail dot com
@ 2013-01-04 9:12 ` venkataramanan.kumar at amd dot com
2013-01-04 9:20 ` ubizjak at gmail dot com
` (8 subsequent siblings)
13 siblings, 0 replies; 15+ messages in thread
From: venkataramanan.kumar at amd dot com @ 2013-01-04 9:12 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55845
--- Comment #5 from Venkataramanan <venkataramanan.kumar at amd dot com> 2013-01-04 09:12:09 UTC ---
Hi Uros.
Thank you for conforming.
I suspected this is a problem with jump optimization. Uros what flag we need
to pass to bypass the .jump2 pass?
Regards,
Venkat.
-----Original Message-----
From: ubizjak at gmail dot com [mailto:gcc-bugzilla@gcc.gnu.org]
Sent: Friday, January 04, 2013 1:43 PM
To: Kumar, Venkataramanan
Subject: [Bug rtl-optimization/55845] 454.calculix miscompares with
-march=btver2 -O3 -ffastmath -fschedule-insns -mvzeroupper for test data run
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55845
Uros Bizjak <ubizjak at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2013-01-04
Ever Confirmed|0 |1
--- Comment #4 from Uros Bizjak <ubizjak at gmail dot com> 2013-01-04 08:13:03
UTC --- Please note how unspec_volatile vzeroupper (insn 225) moves above
conditional jump comparison, passing many instructions:
_.c.218r.csa:
...
110: {r8:SI=r8:SI+r11:SI;clobber flags:CC;}
REG_UNUSED flags:CC
111: flags:CCZ=cmp(bx:SI,r11:SI)
REG_DEAD r11:SI
REG_DEAD bx:SI
105: xmm2:V4DF=vec_select(vec_concat(xmm1:V4DF,xmm1:V4DF),parallel)
106: xmm1:V4DF=xmm1:V4DF+xmm2:V4DF
REG_DEAD xmm2:V4DF
234: xmm1:V2DF=xmm1:V2DF
235: xmm1:DF=xmm1:DF
109: xmm0:DF=xmm0:DF+xmm1:DF
REG_DEAD xmm1:DF
112: pc={(flags:CCZ==0)?L230:pc}
REG_DEAD flags:CCZ
REG_BR_PROB 0xd06
226: NOTE_INSN_BASIC_BLOCK 22
225: unspec/v[0] 43
113: L113:
114: NOTE_INSN_BASIC_BLOCK 23
...
_.c.219r.jump2:
...
110: {r8:SI=r8:SI+r11:SI;clobber flags:CC;}
REG_UNUSED flags:CC
225: unspec/v[0] 43
111: flags:CCZ=cmp(bx:SI,r11:SI)
REG_DEAD r11:SI
REG_DEAD bx:SI
105: xmm2:V4DF=vec_select(vec_concat(xmm1:V4DF,xmm1:V4DF),parallel)
106: xmm1:V4DF=xmm1:V4DF+xmm2:V4DF
REG_DEAD xmm2:V4DF
109: xmm0:DF=xmm0:DF+xmm1:DF
REG_DEAD xmm1:DF
112: pc={(flags:CCZ==0)?L231:pc}
REG_DEAD flags:CCZ
REG_BR_PROB 0xd06
113: L113:
114: NOTE_INSN_BASIC_BLOCK 23
...
Confirmed as rtl-optimization infrastructure problem.
--
Configure bugmail: http://gcc.gnu.org/bugzilla/userprefs.cgi?tab=email
------- You are receiving this mail because: ------- You reported the bug.
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug rtl-optimization/55845] 454.calculix miscompares with -march=btver2 -O3 -ffastmath -fschedule-insns -mvzeroupper for test data run
2013-01-02 9:28 [Bug rtl-optimization/55845] New: 454.calculix miscompares with -march=btver2 -O3 -ffastmath -fschedule-insns -mvzeroupper for test data run venkataramanan.kumar at amd dot com
` (4 preceding siblings ...)
2013-01-04 9:12 ` venkataramanan.kumar at amd dot com
@ 2013-01-04 9:20 ` ubizjak at gmail dot com
2013-01-04 9:25 ` venkataramanan.kumar at amd dot com
` (7 subsequent siblings)
13 siblings, 0 replies; 15+ messages in thread
From: ubizjak at gmail dot com @ 2013-01-04 9:20 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55845
--- Comment #6 from Uros Bizjak <ubizjak at gmail dot com> 2013-01-04 09:20:16 UTC ---
(In reply to comment #5)
> I suspected this is a problem with jump optimization. Uros what flag we need
> to pass to bypass the .jump2 pass?
The pass should be fixed to handle unspec_volatile insns correctly, not
disabled.
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug rtl-optimization/55845] 454.calculix miscompares with -march=btver2 -O3 -ffastmath -fschedule-insns -mvzeroupper for test data run
2013-01-02 9:28 [Bug rtl-optimization/55845] New: 454.calculix miscompares with -march=btver2 -O3 -ffastmath -fschedule-insns -mvzeroupper for test data run venkataramanan.kumar at amd dot com
` (5 preceding siblings ...)
2013-01-04 9:20 ` ubizjak at gmail dot com
@ 2013-01-04 9:25 ` venkataramanan.kumar at amd dot com
2013-01-04 9:35 ` [Bug rtl-optimization/55845] [4.8 Regression] " ubizjak at gmail dot com
` (6 subsequent siblings)
13 siblings, 0 replies; 15+ messages in thread
From: venkataramanan.kumar at amd dot com @ 2013-01-04 9:25 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55845
--- Comment #7 from Venkataramanan <venkataramanan.kumar at amd dot com> 2013-01-04 09:24:47 UTC ---
Hi Uros,
Sorry , my intention was just know if we have some flags to disable this pass.
Not as a solution :)
Regards,
Venkat.
-----Original Message-----
From: ubizjak at gmail dot com [mailto:gcc-bugzilla@gcc.gnu.org]
Sent: Friday, January 04, 2013 2:50 PM
To: Kumar, Venkataramanan
Subject: [Bug rtl-optimization/55845] 454.calculix miscompares with
-march=btver2 -O3 -ffastmath -fschedule-insns -mvzeroupper for test data run
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55845
--- Comment #6 from Uros Bizjak <ubizjak at gmail dot com> 2013-01-04 09:20:16
UTC --- (In reply to comment #5)
> I suspected this is a problem with jump optimization. Uros what flag
> we need to pass to bypass the .jump2 pass?
The pass should be fixed to handle unspec_volatile insns correctly, not
disabled.
--
Configure bugmail: http://gcc.gnu.org/bugzilla/userprefs.cgi?tab=email
------- You are receiving this mail because: ------- You reported the bug.
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug rtl-optimization/55845] [4.8 Regression] 454.calculix miscompares with -march=btver2 -O3 -ffastmath -fschedule-insns -mvzeroupper for test data run
2013-01-02 9:28 [Bug rtl-optimization/55845] New: 454.calculix miscompares with -march=btver2 -O3 -ffastmath -fschedule-insns -mvzeroupper for test data run venkataramanan.kumar at amd dot com
` (6 preceding siblings ...)
2013-01-04 9:25 ` venkataramanan.kumar at amd dot com
@ 2013-01-04 9:35 ` ubizjak at gmail dot com
2013-01-06 13:24 ` ubizjak at gmail dot com
` (5 subsequent siblings)
13 siblings, 0 replies; 15+ messages in thread
From: ubizjak at gmail dot com @ 2013-01-04 9:35 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55845
Uros Bizjak <ubizjak at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |wrong-code
Target Milestone|--- |4.8.0
Summary|454.calculix miscompares |[4.8 Regression]
|with -march=btver2 -O3 |454.calculix miscompares
|-ffastmath -fschedule-insns |with -march=btver2 -O3
|-mvzeroupper for test data |-ffastmath -fschedule-insns
|run |-mvzeroupper for test data
| |run
--- Comment #8 from Uros Bizjak <ubizjak at gmail dot com> 2013-01-04 09:35:12 UTC ---
(In reply to comment #7)
> Sorry , my intention was just know if we have some flags to disable this pass.
It looks to me that -fno-crossjumping should do the trick.
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug rtl-optimization/55845] [4.8 Regression] 454.calculix miscompares with -march=btver2 -O3 -ffastmath -fschedule-insns -mvzeroupper for test data run
2013-01-02 9:28 [Bug rtl-optimization/55845] New: 454.calculix miscompares with -march=btver2 -O3 -ffastmath -fschedule-insns -mvzeroupper for test data run venkataramanan.kumar at amd dot com
` (7 preceding siblings ...)
2013-01-04 9:35 ` [Bug rtl-optimization/55845] [4.8 Regression] " ubizjak at gmail dot com
@ 2013-01-06 13:24 ` ubizjak at gmail dot com
2013-01-06 15:51 ` ubizjak at gmail dot com
` (4 subsequent siblings)
13 siblings, 0 replies; 15+ messages in thread
From: ubizjak at gmail dot com @ 2013-01-06 13:24 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55845
Uros Bizjak <ubizjak at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |bonzini at gnu dot org
--- Comment #9 from Uros Bizjak <ubizjak at gmail dot com> 2013-01-06 13:23:54 UTC ---
It is try_head_merge_bb that moves unspec_volatile to the wrong place. However,
the core of the problem lies in can_move_insns_accross, which does not
special-case unspec_volatiles.
The untested df-problems.c patch that fixes the failing testcase:
--cut here--
Index: df-problems.c
===================================================================
--- df-problems.c (revision 194945)
+++ df-problems.c (working copy)
@@ -3916,6 +3916,10 @@ can_move_insns_across (rtx from, rtx to, rtx acros
break;
if (NONDEBUG_INSN_P (insn))
{
+ /* Do not move unspec_volatile insns. */
+ if (GET_CODE (PATTERN (insn)) == UNSPEC_VOLATILE)
+ break;
+
if (may_trap_or_fault_p (PATTERN (insn))
&& (trapping_insns_in_across || other_branch_live != NULL))
break;
--cut here--
Adding Paolo B. to CC.
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug rtl-optimization/55845] [4.8 Regression] 454.calculix miscompares with -march=btver2 -O3 -ffastmath -fschedule-insns -mvzeroupper for test data run
2013-01-02 9:28 [Bug rtl-optimization/55845] New: 454.calculix miscompares with -march=btver2 -O3 -ffastmath -fschedule-insns -mvzeroupper for test data run venkataramanan.kumar at amd dot com
` (8 preceding siblings ...)
2013-01-06 13:24 ` ubizjak at gmail dot com
@ 2013-01-06 15:51 ` ubizjak at gmail dot com
2013-01-07 15:46 ` rguenth at gcc dot gnu.org
` (3 subsequent siblings)
13 siblings, 0 replies; 15+ messages in thread
From: ubizjak at gmail dot com @ 2013-01-06 15:51 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55845
Uros Bizjak <ubizjak at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
URL| |http://gcc.gnu.org/ml/gcc-p
| |atches/2013-01/msg00252.htm
| |l
--- Comment #10 from Uros Bizjak <ubizjak at gmail dot com> 2013-01-06 15:50:49 UTC ---
Patch at [1].
[1] http://gcc.gnu.org/ml/gcc-patches/2013-01/msg00252.html
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug rtl-optimization/55845] [4.8 Regression] 454.calculix miscompares with -march=btver2 -O3 -ffastmath -fschedule-insns -mvzeroupper for test data run
2013-01-02 9:28 [Bug rtl-optimization/55845] New: 454.calculix miscompares with -march=btver2 -O3 -ffastmath -fschedule-insns -mvzeroupper for test data run venkataramanan.kumar at amd dot com
` (9 preceding siblings ...)
2013-01-06 15:51 ` ubizjak at gmail dot com
@ 2013-01-07 15:46 ` rguenth at gcc dot gnu.org
2013-01-08 18:01 ` jakub at gcc dot gnu.org
` (2 subsequent siblings)
13 siblings, 0 replies; 15+ messages in thread
From: rguenth at gcc dot gnu.org @ 2013-01-07 15:46 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55845
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Priority|P3 |P1
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug rtl-optimization/55845] [4.8 Regression] 454.calculix miscompares with -march=btver2 -O3 -ffastmath -fschedule-insns -mvzeroupper for test data run
2013-01-02 9:28 [Bug rtl-optimization/55845] New: 454.calculix miscompares with -march=btver2 -O3 -ffastmath -fschedule-insns -mvzeroupper for test data run venkataramanan.kumar at amd dot com
` (10 preceding siblings ...)
2013-01-07 15:46 ` rguenth at gcc dot gnu.org
@ 2013-01-08 18:01 ` jakub at gcc dot gnu.org
2013-01-08 18:04 ` jakub at gcc dot gnu.org
2013-01-15 14:05 ` venkataramanan.kumar at amd dot com
13 siblings, 0 replies; 15+ messages in thread
From: jakub at gcc dot gnu.org @ 2013-01-08 18:01 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55845
--- Comment #11 from Jakub Jelinek <jakub at gcc dot gnu.org> 2013-01-08 18:00:30 UTC ---
Author: jakub
Date: Tue Jan 8 18:00:10 2013
New Revision: 195028
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=195028
Log:
PR rtl-optimization/55845
* df-problems.c (can_move_insns_across): Stop scanning at
volatile_insn_p source instruction or give up if
across_from .. across_to range contains any volatile_insn_p
instructions.
* gcc.target/i386/pr55845.c: New test.
Added:
trunk/gcc/testsuite/gcc.target/i386/pr55845.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/df-problems.c
trunk/gcc/testsuite/ChangeLog
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug rtl-optimization/55845] [4.8 Regression] 454.calculix miscompares with -march=btver2 -O3 -ffastmath -fschedule-insns -mvzeroupper for test data run
2013-01-02 9:28 [Bug rtl-optimization/55845] New: 454.calculix miscompares with -march=btver2 -O3 -ffastmath -fschedule-insns -mvzeroupper for test data run venkataramanan.kumar at amd dot com
` (11 preceding siblings ...)
2013-01-08 18:01 ` jakub at gcc dot gnu.org
@ 2013-01-08 18:04 ` jakub at gcc dot gnu.org
2013-01-15 14:05 ` venkataramanan.kumar at amd dot com
13 siblings, 0 replies; 15+ messages in thread
From: jakub at gcc dot gnu.org @ 2013-01-08 18:04 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55845
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
CC| |jakub at gcc dot gnu.org
Resolution| |FIXED
--- Comment #12 from Jakub Jelinek <jakub at gcc dot gnu.org> 2013-01-08 18:03:48 UTC ---
Fixed.
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug rtl-optimization/55845] [4.8 Regression] 454.calculix miscompares with -march=btver2 -O3 -ffastmath -fschedule-insns -mvzeroupper for test data run
2013-01-02 9:28 [Bug rtl-optimization/55845] New: 454.calculix miscompares with -march=btver2 -O3 -ffastmath -fschedule-insns -mvzeroupper for test data run venkataramanan.kumar at amd dot com
` (12 preceding siblings ...)
2013-01-08 18:04 ` jakub at gcc dot gnu.org
@ 2013-01-15 14:05 ` venkataramanan.kumar at amd dot com
13 siblings, 0 replies; 15+ messages in thread
From: venkataramanan.kumar at amd dot com @ 2013-01-15 14:05 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55845
Venkataramanan <venkataramanan.kumar at amd dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|RESOLVED |VERIFIED
--- Comment #13 from Venkataramanan <venkataramanan.kumar at amd dot com> 2013-01-15 14:04:51 UTC ---
Veried the bugfix with gcc r195045.
^ permalink raw reply [flat|nested] 15+ messages in thread
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2013-01-02 9:28 [Bug rtl-optimization/55845] New: 454.calculix miscompares with -march=btver2 -O3 -ffastmath -fschedule-insns -mvzeroupper for test data run venkataramanan.kumar at amd dot com
2013-01-02 10:10 ` [Bug rtl-optimization/55845] " ubizjak at gmail dot com
2013-01-02 10:15 ` ubizjak at gmail dot com
2013-01-04 6:41 ` vbyakovl23 at gmail dot com
2013-01-04 8:13 ` ubizjak at gmail dot com
2013-01-04 9:12 ` venkataramanan.kumar at amd dot com
2013-01-04 9:20 ` ubizjak at gmail dot com
2013-01-04 9:25 ` venkataramanan.kumar at amd dot com
2013-01-04 9:35 ` [Bug rtl-optimization/55845] [4.8 Regression] " ubizjak at gmail dot com
2013-01-06 13:24 ` ubizjak at gmail dot com
2013-01-06 15:51 ` ubizjak at gmail dot com
2013-01-07 15:46 ` rguenth at gcc dot gnu.org
2013-01-08 18:01 ` jakub at gcc dot gnu.org
2013-01-08 18:04 ` jakub at gcc dot gnu.org
2013-01-15 14:05 ` venkataramanan.kumar at amd dot com
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