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* [Bug middle-end/37243] New: [4.4 Regression] Revision 139590 caused many regressions
@ 2008-08-26 15:01 hjl dot tools at gmail dot com
2008-08-26 15:08 ` [Bug middle-end/37243] " hjl dot tools at gmail dot com
` (34 more replies)
0 siblings, 35 replies; 36+ messages in thread
From: hjl dot tools at gmail dot com @ 2008-08-26 15:01 UTC (permalink / raw)
To: gcc-bugs
+FAIL: 21_strings/basic_string/numeric_conversions/char/stoi.cc execution test
+FAIL: 21_strings/basic_string/numeric_conversions/char/stol.cc execution test
+FAIL: 21_strings/basic_string/numeric_conversions/char/stoul.cc execution test
On Linux/x86-64, revision 139590 caused the following regressions:
+FAIL: g++.old-deja/g++.eh/ia64-1.C execution test
+FAIL: g++.old-deja/g++.eh/rethrow6.C execution test
+FAIL: gcc.target/i386/pr34256.c scan-assembler-times mov 2
+FAIL: gcc.target/i386/pr36222-1.c scan-assembler-not movdqa
+FAIL: gcc.target/i386/pr36222-1.c scan-assembler-not movdqa
+FAIL: gcc.target/i386/pr36246.c scan-assembler-not movq
+FAIL: libgomp.fortran/vla7.f90 -O3 -fomit-frame-pointer execution test
+FAIL: libgomp.fortran/vla7.f90 -O3 -fomit-frame-pointer -funroll-all-loops
-finline-functions execution test
+FAIL: libgomp.fortran/vla7.f90 -O3 -fomit-frame-pointer -funroll-loops
execution test
with
# make check RUNTESTFLAGS="--target_board 'unix{-m32,}'"
--
Summary: [4.4 Regression] Revision 139590 caused many regressions
Product: gcc
Version: 4.4.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: middle-end
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: hjl dot tools at gmail dot com
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37243
^ permalink raw reply [flat|nested] 36+ messages in thread
* [Bug middle-end/37243] [4.4 Regression] Revision 139590 caused many regressions
2008-08-26 15:01 [Bug middle-end/37243] New: [4.4 Regression] Revision 139590 caused many regressions hjl dot tools at gmail dot com
@ 2008-08-26 15:08 ` hjl dot tools at gmail dot com
2008-08-26 15:38 ` rguenth at gcc dot gnu dot org
` (33 subsequent siblings)
34 siblings, 0 replies; 36+ messages in thread
From: hjl dot tools at gmail dot com @ 2008-08-26 15:08 UTC (permalink / raw)
To: gcc-bugs
------- Comment #1 from hjl dot tools at gmail dot com 2008-08-26 15:07 -------
Those are Linux/ia32 only regressions:
+FAIL: 21_strings/basic_string/numeric_conversions/char/stoi.cc execution test
+FAIL: 21_strings/basic_string/numeric_conversions/char/stol.cc execution test
+FAIL: 21_strings/basic_string/numeric_conversions/char/stoul.cc execution test
+FAIL: g++.old-deja/g++.eh/ia64-1.C execution test
+FAIL: gcc.target/i386/pr36222-1.c scan-assembler-not movdqa
+FAIL: libgomp.fortran/vla7.f90 -O3 -fomit-frame-pointer execution test
+FAIL: libgomp.fortran/vla7.f90 -O3 -fomit-frame-pointer -funroll-all-loops
-finline-functions execution test
+FAIL: libgomp.fortran/vla7.f90 -O3 -fomit-frame-pointer -funroll-loops
execution test
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37243
^ permalink raw reply [flat|nested] 36+ messages in thread
* [Bug middle-end/37243] [4.4 Regression] Revision 139590 caused many regressions
2008-08-26 15:01 [Bug middle-end/37243] New: [4.4 Regression] Revision 139590 caused many regressions hjl dot tools at gmail dot com
2008-08-26 15:08 ` [Bug middle-end/37243] " hjl dot tools at gmail dot com
@ 2008-08-26 15:38 ` rguenth at gcc dot gnu dot org
2008-08-26 18:23 ` hjl dot tools at gmail dot com
` (32 subsequent siblings)
34 siblings, 0 replies; 36+ messages in thread
From: rguenth at gcc dot gnu dot org @ 2008-08-26 15:38 UTC (permalink / raw)
To: gcc-bugs
--
rguenth at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |4.4.0
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37243
^ permalink raw reply [flat|nested] 36+ messages in thread
* [Bug middle-end/37243] [4.4 Regression] Revision 139590 caused many regressions
2008-08-26 15:01 [Bug middle-end/37243] New: [4.4 Regression] Revision 139590 caused many regressions hjl dot tools at gmail dot com
2008-08-26 15:08 ` [Bug middle-end/37243] " hjl dot tools at gmail dot com
2008-08-26 15:38 ` rguenth at gcc dot gnu dot org
@ 2008-08-26 18:23 ` hjl dot tools at gmail dot com
2008-08-26 20:04 ` hjl dot tools at gmail dot com
` (31 subsequent siblings)
34 siblings, 0 replies; 36+ messages in thread
From: hjl dot tools at gmail dot com @ 2008-08-26 18:23 UTC (permalink / raw)
To: gcc-bugs
------- Comment #2 from hjl dot tools at gmail dot com 2008-08-26 18:22 -------
These are regressions on Linux/ia64:
+FAIL: g++.dg/opt/eh3.C execution test
+FAIL: gfortran.dg/list_read_8.f90 -O0 execution test
+FAIL: gfortran.dg/list_read_8.f90 -O1 execution test
+FAIL: gfortran.dg/list_read_8.f90 -O2 execution test
+FAIL: gfortran.dg/list_read_8.f90 -O3 -fomit-frame-pointer execution test
+FAIL: gfortran.dg/list_read_8.f90 -O3 -fomit-frame-pointer -funroll-all-loops
-finline-functions execution test
+FAIL: gfortran.dg/list_read_8.f90 -O3 -fomit-frame-pointer -funroll-loops
execution test
+FAIL: gfortran.dg/list_read_8.f90 -O3 -g execution test
+FAIL: gfortran.dg/list_read_8.f90 -Os execution test
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37243
^ permalink raw reply [flat|nested] 36+ messages in thread
* [Bug middle-end/37243] [4.4 Regression] Revision 139590 caused many regressions
2008-08-26 15:01 [Bug middle-end/37243] New: [4.4 Regression] Revision 139590 caused many regressions hjl dot tools at gmail dot com
` (2 preceding siblings ...)
2008-08-26 18:23 ` hjl dot tools at gmail dot com
@ 2008-08-26 20:04 ` hjl dot tools at gmail dot com
2008-08-26 20:11 ` hjl dot tools at gmail dot com
` (30 subsequent siblings)
34 siblings, 0 replies; 36+ messages in thread
From: hjl dot tools at gmail dot com @ 2008-08-26 20:04 UTC (permalink / raw)
To: gcc-bugs
------- Comment #3 from hjl dot tools at gmail dot com 2008-08-26 20:03 -------
On Linux/ia32, it also miscompiled 416.gamess in SPEC CPU 2006.
with -O2 -msse2 -mfpmath=sse -ffast-math.
--
hjl dot tools at gmail dot com changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |Joey dot ye at intel dot
| |com, weiliang dot lin at
| |intel dot com, xuepeng dot
| |guo at intel dot com
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37243
^ permalink raw reply [flat|nested] 36+ messages in thread
* [Bug middle-end/37243] [4.4 Regression] Revision 139590 caused many regressions
2008-08-26 15:01 [Bug middle-end/37243] New: [4.4 Regression] Revision 139590 caused many regressions hjl dot tools at gmail dot com
` (3 preceding siblings ...)
2008-08-26 20:04 ` hjl dot tools at gmail dot com
@ 2008-08-26 20:11 ` hjl dot tools at gmail dot com
2008-08-26 20:46 ` pinskia at gcc dot gnu dot org
` (29 subsequent siblings)
34 siblings, 0 replies; 36+ messages in thread
From: hjl dot tools at gmail dot com @ 2008-08-26 20:11 UTC (permalink / raw)
To: gcc-bugs
------- Comment #4 from hjl dot tools at gmail dot com 2008-08-26 20:09 -------
We got
Running 416.gamess ref base lnx32-gcc default
416.gamess: copy #0 non-zero return code (rc=0, signal=11)
416.gamess: copy #0 non-zero return code (rc=0, signal=11)
416.gamess: copy #0 non-zero return code (rc=0, signal=11)
We will try to find a small testcase.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37243
^ permalink raw reply [flat|nested] 36+ messages in thread
* [Bug middle-end/37243] [4.4 Regression] Revision 139590 caused many regressions
2008-08-26 15:01 [Bug middle-end/37243] New: [4.4 Regression] Revision 139590 caused many regressions hjl dot tools at gmail dot com
` (4 preceding siblings ...)
2008-08-26 20:11 ` hjl dot tools at gmail dot com
@ 2008-08-26 20:46 ` pinskia at gcc dot gnu dot org
2008-08-26 22:25 ` hjl dot tools at gmail dot com
` (28 subsequent siblings)
34 siblings, 0 replies; 36+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2008-08-26 20:46 UTC (permalink / raw)
To: gcc-bugs
--
pinskia at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |pinskia at gcc dot gnu dot
| |org
Severity|normal |blocker
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37243
^ permalink raw reply [flat|nested] 36+ messages in thread
* [Bug middle-end/37243] [4.4 Regression] Revision 139590 caused many regressions
2008-08-26 15:01 [Bug middle-end/37243] New: [4.4 Regression] Revision 139590 caused many regressions hjl dot tools at gmail dot com
` (5 preceding siblings ...)
2008-08-26 20:46 ` pinskia at gcc dot gnu dot org
@ 2008-08-26 22:25 ` hjl dot tools at gmail dot com
2008-08-27 0:06 ` hjl dot tools at gmail dot com
` (27 subsequent siblings)
34 siblings, 0 replies; 36+ messages in thread
From: hjl dot tools at gmail dot com @ 2008-08-26 22:25 UTC (permalink / raw)
To: gcc-bugs
------- Comment #5 from hjl dot tools at gmail dot com 2008-08-26 22:24 -------
Linux/x86-64 only regressions are
+FAIL: g++.old-deja/g++.eh/rethrow6.C execution test
+FAIL: gcc.target/i386/pr34256.c scan-assembler-times mov 2
+FAIL: gcc.target/i386/pr36222-1.c scan-assembler-not movdqa
+FAIL: gcc.target/i386/pr36246.c scan-assembler-not movq
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37243
^ permalink raw reply [flat|nested] 36+ messages in thread
* [Bug middle-end/37243] [4.4 Regression] Revision 139590 caused many regressions
2008-08-26 15:01 [Bug middle-end/37243] New: [4.4 Regression] Revision 139590 caused many regressions hjl dot tools at gmail dot com
` (6 preceding siblings ...)
2008-08-26 22:25 ` hjl dot tools at gmail dot com
@ 2008-08-27 0:06 ` hjl dot tools at gmail dot com
2008-08-27 8:09 ` Joey dot ye at intel dot com
` (26 subsequent siblings)
34 siblings, 0 replies; 36+ messages in thread
From: hjl dot tools at gmail dot com @ 2008-08-27 0:06 UTC (permalink / raw)
To: gcc-bugs
------- Comment #6 from hjl dot tools at gmail dot com 2008-08-27 00:05 -------
On Linux/Intel64, I got
Running 434.zeusmp ref base lnx32e-gcc default
434.zeusmp: copy #0 non-zero return code (rc=0, signal=11)
with -O2 -ffast-math.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37243
^ permalink raw reply [flat|nested] 36+ messages in thread
* [Bug middle-end/37243] [4.4 Regression] Revision 139590 caused many regressions
2008-08-26 15:01 [Bug middle-end/37243] New: [4.4 Regression] Revision 139590 caused many regressions hjl dot tools at gmail dot com
` (7 preceding siblings ...)
2008-08-27 0:06 ` hjl dot tools at gmail dot com
@ 2008-08-27 8:09 ` Joey dot ye at intel dot com
2008-08-27 8:12 ` Joey dot ye at intel dot com
` (25 subsequent siblings)
34 siblings, 0 replies; 36+ messages in thread
From: Joey dot ye at intel dot com @ 2008-08-27 8:09 UTC (permalink / raw)
To: gcc-bugs
------- Comment #7 from Joey dot ye at intel dot com 2008-08-27 08:07 -------
Created an attachment (id=16155)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=16155&action=view)
Test case from 2006.434.zeusmp
Though fail to extract a smaller case, hopeful it helpful.
Compile with gfortran -c -O2 -DSPEC_CPU_LP64 tranx1.f -S -fdump-rtl-all -g.
Miscompile in revision 139590.
In IRA dump file, I believe following suspicious RTL is the cause of segfault:
(insn 886 885 893 35 tranx1.f:570 (set (reg:DI 0 ax [orig:123 D.3215 ] [123])
(mem/c:DI (plus:DI (reg/f:DI 7 sp)
(const_int -104 [0xffffffffffffff98])) [68 D.3215+0 S8 A64]))
89 {*movdi_1_rex64} (nil))
(insn 893 886 896 35 tranx1.f:570 (set (mem/c:DI (plus:DI (reg/f:DI 7 sp)
(const_int -104 [0xffffffffffffff98])) [68 ivtmp.160+0 S8 A64])
(reg/f:DI 3 bx [orig:159 ivtmp.160 ] [159])) 89 {*movdi_1_rex64} (nil))
D.3215 and ivtmp.160 shares the spill space (%rsp-104), where as D.3215 and
ivtmp.160 has overlapped liverange.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37243
^ permalink raw reply [flat|nested] 36+ messages in thread
* [Bug middle-end/37243] [4.4 Regression] Revision 139590 caused many regressions
2008-08-26 15:01 [Bug middle-end/37243] New: [4.4 Regression] Revision 139590 caused many regressions hjl dot tools at gmail dot com
` (8 preceding siblings ...)
2008-08-27 8:09 ` Joey dot ye at intel dot com
@ 2008-08-27 8:12 ` Joey dot ye at intel dot com
2008-08-27 13:28 ` dominiq at lps dot ens dot fr
` (24 subsequent siblings)
34 siblings, 0 replies; 36+ messages in thread
From: Joey dot ye at intel dot com @ 2008-08-27 8:12 UTC (permalink / raw)
To: gcc-bugs
------- Comment #8 from Joey dot ye at intel dot com 2008-08-27 08:11 -------
GDB output:
(gdb) b tranx1_
Breakpoint 1 at 0x43a670
(gdb) r
Breakpoint 1, 0x000000000043a670 in tranx1_ ()
(gdb) b *0x43accd
Breakpoint 2 at 0x43accd
(gdb) b *0x43acf4
Breakpoint 3 at 0x43acf4
(gdb) b *0x43ad2f
Breakpoint 4 at 0x43ad2f
(gdb) c
Breakpoint 2, 0x000000000043accd in tranx1_ ()
(gdb) x 0x43accd
0x43accd <tranx1_+1629>: mov 0xffffffffffffff98(%rsp),%rcx
(gdb) c
Breakpoint 3, 0x000000000043acf4 in tranx1_ ()
(gdb) x 0x43acf4
0x43acf4 <tranx1_+1668>: lea 0x160603e8(,%rcx,8),%rbx
(gdb) i r rcx
rcx 0x5 5
(gdb) c
Breakpoint 4, 0x000000000043ad2f in tranx1_ ()
(gdb) x 0x43ad2f
0x43ad2f <tranx1_+1727>: mov %rbx,0xffffffffffffff98(%rsp)
// RTL #893 Suspicious
(gdb) i r rbx
rbx 0x16060410 369493008
(gdb) c
Breakpoint 2, 0x000000000043accd in tranx1_ ()
(gdb) x 0x43accd
0x43accd <tranx1_+1629>: mov 0xffffffffffffff98(%rsp),%rcx
(gdb) c
Breakpoint 3, 0x000000000043acf4 in tranx1_ ()
(gdb) x 0x43acf4
0x43acf4 <tranx1_+1668>: lea 0x160603e8(,%rcx,8),%rbx
(gdb) i r rcx
rcx 0x16060410 369493008
(gdb) c
Breakpoint 4, 0x000000000043ad2f in tranx1_ ()
(gdb) x 0x43ad2f
0x43ad2f <tranx1_+1727>: mov %rbx,0xffffffffffffff98(%rsp)
(gdb) i r rbx
rbx 0xc6362468 3325437032
(gdb) c
Program received signal SIGSEGV, Segmentation fault.
0x000000000043ad65 in tranx1_ ()
(gdb) x 0x43ad65
0x43ad65 <tranx1_+1781>: subsd (%r14),%xmm0
(gdb) i r r14
r14 0xc6362468 3325437032
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37243
^ permalink raw reply [flat|nested] 36+ messages in thread
* [Bug middle-end/37243] [4.4 Regression] Revision 139590 caused many regressions
2008-08-26 15:01 [Bug middle-end/37243] New: [4.4 Regression] Revision 139590 caused many regressions hjl dot tools at gmail dot com
` (9 preceding siblings ...)
2008-08-27 8:12 ` Joey dot ye at intel dot com
@ 2008-08-27 13:28 ` dominiq at lps dot ens dot fr
2008-08-27 16:35 ` vmakarov at redhat dot com
` (23 subsequent siblings)
34 siblings, 0 replies; 36+ messages in thread
From: dominiq at lps dot ens dot fr @ 2008-08-27 13:28 UTC (permalink / raw)
To: gcc-bugs
------- Comment #9 from dominiq at lps dot ens dot fr 2008-08-27 13:27 -------
New failures between revision 139588 and 139622 on i686-apple-darwin9
32 and 64 bit modes
< FAIL: g++.old-deja/g++.eh/ia64-1.C execution test
< FAIL: gcc.target/i386/pr36222-1.c scan-assembler-not movdqa
< FAIL: gfortran.dg/function_kinds_5.f90 -O (test for errors, line 8)
32 bit mode only
< FAIL: libgomp.fortran/vla7.f90 -O3 -fomit-frame-pointer execution test
< FAIL: libgomp.fortran/vla7.f90 -O3 -fomit-frame-pointer -funroll-loops
execution test
< FAIL: libgomp.fortran/vla7.f90 -O3 -fomit-frame-pointer -funroll-all-loops
-finline-functions execution test
64 bit mode only
< FAIL: g++.old-deja/g++.eh/rethrow6.C execution test
< FAIL: 21_strings/basic_string/numeric_conversions/char/stoi.cc execution test
< FAIL: 21_strings/basic_string/numeric_conversions/char/stol.cc execution test
< FAIL: 21_strings/basic_string/numeric_conversions/char/stoul.cc execution
test
< FAIL: 21_strings/basic_string/numeric_conversions/wchar_t/stod.cc execution
test
< FAIL: 21_strings/basic_string/numeric_conversions/wchar_t/stof.cc execution
test
< FAIL: 21_strings/basic_string/numeric_conversions/wchar_t/stoi.cc execution
test
< FAIL: 21_strings/basic_string/numeric_conversions/wchar_t/stol.cc execution
test
< FAIL: 21_strings/basic_string/numeric_conversions/wchar_t/stold.cc execution
test
< FAIL: 21_strings/basic_string/numeric_conversions/wchar_t/stoll.cc execution
test
< FAIL: 21_strings/basic_string/numeric_conversions/wchar_t/stoul.cc execution
test
< FAIL: 21_strings/basic_string/numeric_conversions/wchar_t/stoull.cc execution
test
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37243
^ permalink raw reply [flat|nested] 36+ messages in thread
* [Bug middle-end/37243] [4.4 Regression] Revision 139590 caused many regressions
2008-08-26 15:01 [Bug middle-end/37243] New: [4.4 Regression] Revision 139590 caused many regressions hjl dot tools at gmail dot com
` (10 preceding siblings ...)
2008-08-27 13:28 ` dominiq at lps dot ens dot fr
@ 2008-08-27 16:35 ` vmakarov at redhat dot com
2008-08-28 6:16 ` Joey dot ye at intel dot com
` (22 subsequent siblings)
34 siblings, 0 replies; 36+ messages in thread
From: vmakarov at redhat dot com @ 2008-08-27 16:35 UTC (permalink / raw)
To: gcc-bugs
------- Comment #10 from vmakarov at redhat dot com 2008-08-27 16:33 -------
IRA degradation on rethrow6.C.
This test fails when compiled with -O0. The wrong code looks like
bb:
p93<-ax
p96<-dx
where p93 got dx and p96 got ax. The reason for this is that ax and dx are not
live regs at the start of basic block when -O0 is used and as a consequence p93
does not conflict with dx as it should be.
There are 2 solutions:
first one is to generate the info for -O0 too
second one is to prevent assigning hard registers to global pseudos as the
old register allocator does.
The second one is more simple. It does not increase compiler speed. In fact, I
found the second solution makes compiler 0.5% faster on all_cp2k_fortran.f90
(although such improvement is an error margin).
I'll send the patch for solving rethrow6.C degradation soon.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37243
^ permalink raw reply [flat|nested] 36+ messages in thread
* [Bug middle-end/37243] [4.4 Regression] Revision 139590 caused many regressions
2008-08-26 15:01 [Bug middle-end/37243] New: [4.4 Regression] Revision 139590 caused many regressions hjl dot tools at gmail dot com
` (11 preceding siblings ...)
2008-08-27 16:35 ` vmakarov at redhat dot com
@ 2008-08-28 6:16 ` Joey dot ye at intel dot com
2008-08-29 4:39 ` [Bug middle-end/37243] [4.4 Regression] IRA causes wrong code generation pinskia at gcc dot gnu dot org
` (21 subsequent siblings)
34 siblings, 0 replies; 36+ messages in thread
From: Joey dot ye at intel dot com @ 2008-08-28 6:16 UTC (permalink / raw)
To: gcc-bugs
------- Comment #11 from Joey dot ye at intel dot com 2008-08-28 06:14 -------
(In reply to comment #4)
> We got
> Running 416.gamess ref base lnx32-gcc default
> 416.gamess: copy #0 non-zero return code (rc=0, signal=11)
> 416.gamess: copy #0 non-zero return code (rc=0, signal=11)
> 416.gamess: copy #0 non-zero return code (rc=0, signal=11)
> We will try to find a small testcase.
Small case available:
$ cat case.f
SUBROUTINE SCHMD(V,M,N,LDV)
IMPLICIT DOUBLE PRECISION(A-H,O-Z)
LOGICAL GOPARR,DSKWRK,MASWRK
DIMENSION V(LDV,N)
COMMON /IOFILE/ IR,IW,IP,IS,IPK,IDAF,NAV,IODA(400)
COMMON /PAR / ME,MASTER,NPROC,IBTYP,IPTIM,GOPARR,DSKWRK,MASWRK
PARAMETER (ZERO=0.0D+00, ONE=1.0D+00, TOL=1.0D-10)
IF (M .EQ. 0) GO TO 180
DO 160 I = 1,M
DUMI = ZERO
DO 100 K = 1,N
100 DUMI = DUMI+V(K,I)*V(K,I)
DUMI = ONE/ SQRT(DUMI)
DO 120 K = 1,N
120 V(K,I) = V(K,I)*DUMI
IF (I .EQ. M) GO TO 160
I1 = I+1
DO 140 J = I1,M
DUM = -DDOT(N,V(1,J),1,V(1,I),1)
CALL DAXPY(N,DUM,V(1,I),1,V(1,J),1)
140 CONTINUE
160 CONTINUE
IF (M .EQ. N) RETURN
180 CONTINUE
I = M
J = 0
200 I0 = I
I = I+1
IF (I .GT. N) RETURN
220 J = J+1
IF (J .GT. N) GO TO 320
DO 240 K = 1,N
240 V(K,I) = ZERO
CALL DAXPY(N,DUM,V(1,II),1,V(1,I),1)
260 CONTINUE
DUMI = ZERO
DO 280 K = 1,N
280 DUMI = DUMI+V(K,I)*V(K,I)
IF ( ABS(DUMI) .LT. TOL) GO TO 220
DO 300 K = 1,N
300 V(K,I) = V(K,I)*DUMI
GO TO 200
320 END
program main
DOUBLE PRECISION V
DIMENSION V(18, 18)
common // v
call schmd(V, 1, 18, 18)
end
subroutine DAXPY
end
FUNCTION DDOT ()
DOUBLE PRECISION DDOT
DDOT = 1
end
$ gfortran -v
Using built-in specs.
Target: x86_64-unknown-linux-gnu
Configured with: ../src/configure --disable-bootstrap
--enable-languages=c,c++,fortran --enable-checking=assert
Thread model: posix
gcc version 4.4.0 20080826 (experimental) [trunk revision 139590] (GCC)
$ gfortran -O2 -o case.exe case.f -m32
$ ./case.exe
Segmentation fault
$ gfortran -v
Using built-in specs.
Target: x86_64-unknown-linux-gnu
Configured with: ../src/configure --disable-bootstrap
--enable-languages=c,c++,fortran --enable-checking=assert
Thread model: posix
gcc version 4.4.0 20080826 (experimental) [trunk revision 139589] (GCC)
$ gfortran -O2 -o case.exe case.f -m32
$ ./case.exe
$
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37243
^ permalink raw reply [flat|nested] 36+ messages in thread
* [Bug middle-end/37243] [4.4 Regression] IRA causes wrong code generation
2008-08-26 15:01 [Bug middle-end/37243] New: [4.4 Regression] Revision 139590 caused many regressions hjl dot tools at gmail dot com
` (12 preceding siblings ...)
2008-08-28 6:16 ` Joey dot ye at intel dot com
@ 2008-08-29 4:39 ` pinskia at gcc dot gnu dot org
2008-08-29 15:56 ` vmakarov at redhat dot com
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From: pinskia at gcc dot gnu dot org @ 2008-08-29 4:39 UTC (permalink / raw)
To: gcc-bugs
--
pinskia at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Ever Confirmed|0 |1
Last reconfirmed|0000-00-00 00:00:00 |2008-08-29 04:37:57
date| |
Summary|[4.4 Regression] Revision |[4.4 Regression] IRA causes
|139590 caused many |wrong code generation
|regressions |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37243
^ permalink raw reply [flat|nested] 36+ messages in thread
* [Bug middle-end/37243] [4.4 Regression] IRA causes wrong code generation
2008-08-26 15:01 [Bug middle-end/37243] New: [4.4 Regression] Revision 139590 caused many regressions hjl dot tools at gmail dot com
` (13 preceding siblings ...)
2008-08-29 4:39 ` [Bug middle-end/37243] [4.4 Regression] IRA causes wrong code generation pinskia at gcc dot gnu dot org
@ 2008-08-29 15:56 ` vmakarov at redhat dot com
2008-08-29 16:19 ` vmakarov at gcc dot gnu dot org
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From: vmakarov at redhat dot com @ 2008-08-29 15:56 UTC (permalink / raw)
To: gcc-bugs
------- Comment #12 from vmakarov at redhat dot com 2008-08-29 15:55 -------
Here is the analysis of regressions on pr36222 and pr36246. PR36222 contains
the following code:
p64:V4SI=vec_concat (p66:V2SI, p65:V2SI) dead p66 and p65
xmm0:V2DI=subreg:V2DI (p64:V4SI)
IRA allocates p65, p66, and p64 in this order. p65 gets xmm0, p66 gets xmm1,
and p64 gets xmm0. Reload generates additional move insn because p66 and p64
should be the same operand according to the 1st insn constraints.
IRA uses copies to propagate preferences. p66 and pc64, p66 and p64 connected
by copies with same frequencies as dying pseudos. IRA did not create copy
connecting p66 and p64 as operands should be in the same register according to
the insn constraints because IRA does not create copies for allocnos with
different modes.
Preference of xmm0 was not propagated to p64 because IRA does not create copies
for subregs.
Another pitfall of IRA, it propagates preferences only from allocnos *directly*
connected by copies.
The patch solving the problem will be sent soon.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37243
^ permalink raw reply [flat|nested] 36+ messages in thread
* [Bug middle-end/37243] [4.4 Regression] IRA causes wrong code generation
2008-08-26 15:01 [Bug middle-end/37243] New: [4.4 Regression] Revision 139590 caused many regressions hjl dot tools at gmail dot com
` (14 preceding siblings ...)
2008-08-29 15:56 ` vmakarov at redhat dot com
@ 2008-08-29 16:19 ` vmakarov at gcc dot gnu dot org
2008-08-29 18:25 ` hjl dot tools at gmail dot com
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From: vmakarov at gcc dot gnu dot org @ 2008-08-29 16:19 UTC (permalink / raw)
To: gcc-bugs
------- Comment #13 from vmakarov at gcc dot gnu dot org 2008-08-29 16:18 -------
Subject: Bug 37243
Author: vmakarov
Date: Fri Aug 29 16:16:45 2008
New Revision: 139769
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=139769
Log:
2008-08-29 Vladimir Makarov <vmakarov@redhat.com>
PR rtl-opt/37243
* ira-color (ira_fast_allocation): Don't assign hard registers to
global allocnos.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/ira-color.c
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37243
^ permalink raw reply [flat|nested] 36+ messages in thread
* [Bug middle-end/37243] [4.4 Regression] IRA causes wrong code generation
2008-08-26 15:01 [Bug middle-end/37243] New: [4.4 Regression] Revision 139590 caused many regressions hjl dot tools at gmail dot com
` (15 preceding siblings ...)
2008-08-29 16:19 ` vmakarov at gcc dot gnu dot org
@ 2008-08-29 18:25 ` hjl dot tools at gmail dot com
2008-08-29 19:48 ` pinskia at gcc dot gnu dot org
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From: hjl dot tools at gmail dot com @ 2008-08-29 18:25 UTC (permalink / raw)
To: gcc-bugs
------- Comment #14 from hjl dot tools at gmail dot com 2008-08-29 18:24 -------
I suspect this patch
http://gcc.gnu.org/ml/gcc-patches/2008-08/msg01903.html
is incorrect. Back it out from IRA branch fixed the testcase
in comment #11. I am running SPEC CPU 2000/2006 with IRA
branch using revision 139581 and revision 139582 on Linux/ia32
and Linux/Intel64. It will tell us if revision 139582 is bad.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37243
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* [Bug middle-end/37243] [4.4 Regression] IRA causes wrong code generation
2008-08-26 15:01 [Bug middle-end/37243] New: [4.4 Regression] Revision 139590 caused many regressions hjl dot tools at gmail dot com
` (16 preceding siblings ...)
2008-08-29 18:25 ` hjl dot tools at gmail dot com
@ 2008-08-29 19:48 ` pinskia at gcc dot gnu dot org
2008-08-30 18:53 ` vmakarov at redhat dot com
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From: pinskia at gcc dot gnu dot org @ 2008-08-29 19:48 UTC (permalink / raw)
To: gcc-bugs
------- Comment #15 from pinskia at gcc dot gnu dot org 2008-08-29 19:46 -------
(In reply to comment #14)
> I suspect this patch
>
> http://gcc.gnu.org/ml/gcc-patches/2008-08/msg01903.html
>
That patch enabled IRA by default, before it was only enabled via the -fira
flag. So please test before that patch with -fira and get back to us about
which patch really caused the regressions ....
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37243
^ permalink raw reply [flat|nested] 36+ messages in thread
* [Bug middle-end/37243] [4.4 Regression] IRA causes wrong code generation
2008-08-26 15:01 [Bug middle-end/37243] New: [4.4 Regression] Revision 139590 caused many regressions hjl dot tools at gmail dot com
` (17 preceding siblings ...)
2008-08-29 19:48 ` pinskia at gcc dot gnu dot org
@ 2008-08-30 18:53 ` vmakarov at redhat dot com
2008-09-02 18:18 ` hjl at gcc dot gnu dot org
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From: vmakarov at redhat dot com @ 2008-08-30 18:53 UTC (permalink / raw)
To: gcc-bugs
------- Comment #16 from vmakarov at redhat dot com 2008-08-30 18:52 -------
This is an analysis of the SPEC2006 degradation.
First of all of thanks for reducing the test. I really appreciate
this. Finding it in spec20006 would be very time consuming for me.
The problem looks following
1. pseudo 80 in the 1st loop gets hard register #2,
pseudo 153 in the same loop gets hard register #5.
2. Reload spills pseudo 80 and than assigns it to hard register #5
through IRA. Although p80 and p153 in the 1st loop really conflict.
It happens because of wrong flattening regional IR into plain IR done
for reload. IR flattening is wrong because ira-emit.c (see end of
function ira-emit.c::change_loop) does not rename disjoint live ranges
of p153 in the 1st loop and in another top-level loop. Again it
happens because p153 in the 1st loop is not in bitmap
mentioned_allocnos. p153 is not mentioned in the 1st loop (only in
its subloops) but lives through BBs of the 1st loop.
The patch solving the problem will be sent soon.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37243
^ permalink raw reply [flat|nested] 36+ messages in thread
* [Bug middle-end/37243] [4.4 Regression] IRA causes wrong code generation
2008-08-26 15:01 [Bug middle-end/37243] New: [4.4 Regression] Revision 139590 caused many regressions hjl dot tools at gmail dot com
` (18 preceding siblings ...)
2008-08-30 18:53 ` vmakarov at redhat dot com
@ 2008-09-02 18:18 ` hjl at gcc dot gnu dot org
2008-09-02 18:25 ` hjl at gcc dot gnu dot org
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From: hjl at gcc dot gnu dot org @ 2008-09-02 18:18 UTC (permalink / raw)
To: gcc-bugs
------- Comment #17 from hjl at gcc dot gnu dot org 2008-09-02 18:17 -------
Subject: Bug 37243
Author: hjl
Date: Tue Sep 2 18:16:24 2008
New Revision: 139900
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=139900
Log:
2008-09-02 H.J. Lu <hongjiu.lu@intel.com>
Backport from mainline:
2008-09-01 John David Anglin <dave.anglin@nrc-cnrc.gc.ca>
* ira.c (setup_eliminable_regset): Only declare i if ELIMINABLE_REGS is
defined.
2008-08-29 Vladimir Makarov <vmakarov@redhat.com>
PR rtl-opt/37251
* ira-color.c (push_allocnos_to_stack): Truncate
removed_splay_allocno_vec.
2008-08-29 Vladimir Makarov <vmakarov@redhat.com>
PR rtl-opt/37243
* ira-color (ira_fast_allocation): Don't assign hard registers to
global allocnos.
Added:
branches/ira-merge/gcc/ChangeLog.ira
Modified:
branches/ira-merge/gcc/ira-color.c
branches/ira-merge/gcc/ira.c
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37243
^ permalink raw reply [flat|nested] 36+ messages in thread
* [Bug middle-end/37243] [4.4 Regression] IRA causes wrong code generation
2008-08-26 15:01 [Bug middle-end/37243] New: [4.4 Regression] Revision 139590 caused many regressions hjl dot tools at gmail dot com
` (19 preceding siblings ...)
2008-09-02 18:18 ` hjl at gcc dot gnu dot org
@ 2008-09-02 18:25 ` hjl at gcc dot gnu dot org
2008-09-02 18:30 ` hjl at gcc dot gnu dot org
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From: hjl at gcc dot gnu dot org @ 2008-09-02 18:25 UTC (permalink / raw)
To: gcc-bugs
------- Comment #18 from hjl at gcc dot gnu dot org 2008-09-02 18:24 -------
Subject: Bug 37243
Author: hjl
Date: Tue Sep 2 18:22:59 2008
New Revision: 139901
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=139901
Log:
2008-09-02 Vladimir Makarov <vmakarov@redhat.com>
PR rtl-opt/37243
* ira-conflicts.c (REG_SUBREG_P, go_through_subreg): New.
(process_regs_for_copy): Process subregs. Refine check when cost
is taken into account in ira-costs.c.
(process_reg_shuffles): Use REG_SUBREG_P.
(add_insn_allocno_copies): Ditto. Ignore modes.
* ira-color.c (conflict_allocno_vec): New.
(COST_HOP_DIVISOR): New macro.
(update_copy_costs_1): Use it.
(update_conflict_hard_regno_costs): New function.
(assign_hard_reg): Use it.
(ira_color): Allocate and free conflict_allocno_vec.
Modified:
branches/ira-merge/gcc/ChangeLog.ira
branches/ira-merge/gcc/ira-color.c
branches/ira-merge/gcc/ira-conflicts.c
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37243
^ permalink raw reply [flat|nested] 36+ messages in thread
* [Bug middle-end/37243] [4.4 Regression] IRA causes wrong code generation
2008-08-26 15:01 [Bug middle-end/37243] New: [4.4 Regression] Revision 139590 caused many regressions hjl dot tools at gmail dot com
` (20 preceding siblings ...)
2008-09-02 18:25 ` hjl at gcc dot gnu dot org
@ 2008-09-02 18:30 ` hjl at gcc dot gnu dot org
2008-09-02 20:41 ` hjl dot tools at gmail dot com
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From: hjl at gcc dot gnu dot org @ 2008-09-02 18:30 UTC (permalink / raw)
To: gcc-bugs
------- Comment #19 from hjl at gcc dot gnu dot org 2008-09-02 18:28 -------
Subject: Bug 37243
Author: hjl
Date: Tue Sep 2 18:27:34 2008
New Revision: 139902
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=139902
Log:
2008-09-02 Vladimir Makarov <vmakarov@redhat.com>
PR rtl-opt/37243
* ira-int.h (ira_loop_tree_node): Rename mentioned_allocnos to
all_allocnos.
* ira-color.c (print_loop_title): Use all_allocnos.
(color_pass): Ditto. Don't add border_allocnos. Check that
subloop allocno in the correspdoning bitmap all_allocnos.
* ira-emit.c (change_loop): Use all_allocnos.
* ira-build.c (create_loop_tree_nodes, finish_loop_tree_node):
Ditto.
(ira_create_allocno): Set up all_allocnos bit for the created
allocno.
(create_cap_allocno): Remove setting mentioned_allocnos.
(create_insn_allocnos): Ditto.
(remove_unnecessary_allocnos): Use all_allocnos.
(check_allocno_creation): Check that allocnos are in the
corresponding bitmap all_allocnos.
Modified:
branches/ira-merge/gcc/ChangeLog.ira
branches/ira-merge/gcc/ira-build.c
branches/ira-merge/gcc/ira-color.c
branches/ira-merge/gcc/ira-emit.c
branches/ira-merge/gcc/ira-int.h
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37243
^ permalink raw reply [flat|nested] 36+ messages in thread
* [Bug middle-end/37243] [4.4 Regression] IRA causes wrong code generation
2008-08-26 15:01 [Bug middle-end/37243] New: [4.4 Regression] Revision 139590 caused many regressions hjl dot tools at gmail dot com
` (21 preceding siblings ...)
2008-09-02 18:30 ` hjl at gcc dot gnu dot org
@ 2008-09-02 20:41 ` hjl dot tools at gmail dot com
2008-09-02 23:53 ` hjl dot tools at gmail dot com
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From: hjl dot tools at gmail dot com @ 2008-09-02 20:41 UTC (permalink / raw)
To: gcc-bugs
------- Comment #20 from hjl dot tools at gmail dot com 2008-09-02 20:40 -------
On ira-merge branch at revision 139902, Linux/ia32 has regression:
+FAIL: 21_strings/basic_string/numeric_conversions/char/stoi.cc execution test
+FAIL: 21_strings/basic_string/numeric_conversions/char/stol.cc execution test
+FAIL: 21_strings/basic_string/numeric_conversions/char/stoul.cc execution test
+FAIL: g++.old-deja/g++.eh/ia64-1.C execution test
+FAIL: libgomp.fortran/vla7.f90 -O3 -fomit-frame-pointer execution test
+FAIL: libgomp.fortran/vla7.f90 -O3 -fomit-frame-pointer -funroll-all-loops
-finline-functions execution test
+FAIL: libgomp.fortran/vla7.f90 -O3 -fomit-frame-pointer -funroll-loops
execution test
Linux/x86-64 has regressions:
+FAIL: gcc.target/i386/pr34256.c scan-assembler-times mov 2
Linux/ia64 has regressions:
+FAIL: g++.dg/opt/eh3.C execution test
+FAIL: gfortran.dg/list_read_8.f90 -O0 execution test
+FAIL: gfortran.dg/list_read_8.f90 -O1 execution test
+FAIL: gfortran.dg/list_read_8.f90 -O2 execution test
+FAIL: gfortran.dg/list_read_8.f90 -O3 -fomit-frame-pointer execution test
+FAIL: gfortran.dg/list_read_8.f90 -O3 -fomit-frame-pointer -funroll-all-loops
-finline-functions execution test
+FAIL: gfortran.dg/list_read_8.f90 -O3 -fomit-frame-pointer -funroll-loops
execution test
+FAIL: gfortran.dg/list_read_8.f90 -O3 -g execution test
+FAIL: gfortran.dg/list_read_8.f90 -Os execution test
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37243
^ permalink raw reply [flat|nested] 36+ messages in thread
* [Bug middle-end/37243] [4.4 Regression] IRA causes wrong code generation
2008-08-26 15:01 [Bug middle-end/37243] New: [4.4 Regression] Revision 139590 caused many regressions hjl dot tools at gmail dot com
` (22 preceding siblings ...)
2008-09-02 20:41 ` hjl dot tools at gmail dot com
@ 2008-09-02 23:53 ` hjl dot tools at gmail dot com
2008-09-03 16:06 ` hjl dot tools at gmail dot com
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From: hjl dot tools at gmail dot com @ 2008-09-02 23:53 UTC (permalink / raw)
To: gcc-bugs
------- Comment #21 from hjl dot tools at gmail dot com 2008-09-02 23:52 -------
On ira-merge branch at revision 139914, Linux/ia32 has regression:
+FAIL: libgomp.fortran/vla7.f90 -O3 -fomit-frame-pointer execution test
+FAIL: libgomp.fortran/vla7.f90 -O3 -fomit-frame-pointer -funroll-all-loops
-finline-functions execution test
+FAIL: libgomp.fortran/vla7.f90 -O3 -fomit-frame-pointer -funroll-loops
execution test
Linux/x86-64 has regressions:
+FAIL: gcc.target/i386/pr34256.c scan-assembler-times mov 2
Linux/ia64 has regressions:
+FAIL: gfortran.dg/list_read_8.f90 -O0 execution test
+FAIL: gfortran.dg/list_read_8.f90 -O1 execution test
+FAIL: gfortran.dg/list_read_8.f90 -O2 execution test
+FAIL: gfortran.dg/list_read_8.f90 -O3 -fomit-frame-pointer execution test
+FAIL: gfortran.dg/list_read_8.f90 -O3 -fomit-frame-pointer -funroll-all-loops
-finline-functions execution test
+FAIL: gfortran.dg/list_read_8.f90 -O3 -fomit-frame-pointer -funroll-loops
execution test
+FAIL: gfortran.dg/list_read_8.f90 -O3 -g execution test
+FAIL: gfortran.dg/list_read_8.f90 -Os execution test
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37243
^ permalink raw reply [flat|nested] 36+ messages in thread
* [Bug middle-end/37243] [4.4 Regression] IRA causes wrong code generation
2008-08-26 15:01 [Bug middle-end/37243] New: [4.4 Regression] Revision 139590 caused many regressions hjl dot tools at gmail dot com
` (23 preceding siblings ...)
2008-09-02 23:53 ` hjl dot tools at gmail dot com
@ 2008-09-03 16:06 ` hjl dot tools at gmail dot com
2008-09-03 19:46 ` hjl dot tools at gmail dot com
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From: hjl dot tools at gmail dot com @ 2008-09-03 16:06 UTC (permalink / raw)
To: gcc-bugs
------- Comment #22 from hjl dot tools at gmail dot com 2008-09-03 16:05 -------
(In reply to comment #7)
> Created an attachment (id=16155)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=16155&action=view) [edit]
> Test case from 2006.434.zeusmp
>
> Though fail to extract a smaller case, hopeful it helpful.
>
> Compile with gfortran -c -O2 -DSPEC_CPU_LP64 tranx1.f -S -fdump-rtl-all -g.
> Miscompile in revision 139590.
>
> In IRA dump file, I believe following suspicious RTL is the cause of segfault:
> (insn 886 885 893 35 tranx1.f:570 (set (reg:DI 0 ax [orig:123 D.3215 ] [123])
> (mem/c:DI (plus:DI (reg/f:DI 7 sp)
> (const_int -104 [0xffffffffffffff98])) [68 D.3215+0 S8 A64]))
> 89 {*movdi_1_rex64} (nil))
>
> (insn 893 886 896 35 tranx1.f:570 (set (mem/c:DI (plus:DI (reg/f:DI 7 sp)
> (const_int -104 [0xffffffffffffff98])) [68 ivtmp.160+0 S8 A64])
> (reg/f:DI 3 bx [orig:159 ivtmp.160 ] [159])) 89 {*movdi_1_rex64} (nil))
> D.3215 and ivtmp.160 shares the spill space (%rsp-104), where as D.3215 and
> ivtmp.160 has overlapped liverange.
>
It is fixed by Richard's use DF patch:
http://gcc.gnu.org/ml/gcc/2008-09/msg00015.html
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37243
^ permalink raw reply [flat|nested] 36+ messages in thread
* [Bug middle-end/37243] [4.4 Regression] IRA causes wrong code generation
2008-08-26 15:01 [Bug middle-end/37243] New: [4.4 Regression] Revision 139590 caused many regressions hjl dot tools at gmail dot com
` (24 preceding siblings ...)
2008-09-03 16:06 ` hjl dot tools at gmail dot com
@ 2008-09-03 19:46 ` hjl dot tools at gmail dot com
2008-09-03 20:05 ` hjl dot tools at gmail dot com
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From: hjl dot tools at gmail dot com @ 2008-09-03 19:46 UTC (permalink / raw)
To: gcc-bugs
------- Comment #23 from hjl dot tools at gmail dot com 2008-09-03 19:44 -------
On ira-merge branch at revision 139942, there are no regression
on Linux/ia32. Linux/x86-64 has regressions:
+FAIL: gcc.target/i386/pr34256.c scan-assembler-times mov 2
Linux/ia64 has regressions:
+FAIL: gfortran.dg/list_read_8.f90 -O0 execution test
+FAIL: gfortran.dg/list_read_8.f90 -O1 execution test
+FAIL: gfortran.dg/list_read_8.f90 -O2 execution test
+FAIL: gfortran.dg/list_read_8.f90 -O3 -fomit-frame-pointer execution test
+FAIL: gfortran.dg/list_read_8.f90 -O3 -fomit-frame-pointer -funroll-all-loops
-finline-functions execution test
+FAIL: gfortran.dg/list_read_8.f90 -O3 -fomit-frame-pointer -funroll-loops
execution test
+FAIL: gfortran.dg/list_read_8.f90 -O3 -g execution test
+FAIL: gfortran.dg/list_read_8.f90 -Os execution test
ligfortran is miscompiled since the executable runs correctly with
ligfortran from revision 139589.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37243
^ permalink raw reply [flat|nested] 36+ messages in thread
* [Bug middle-end/37243] [4.4 Regression] IRA causes wrong code generation
2008-08-26 15:01 [Bug middle-end/37243] New: [4.4 Regression] Revision 139590 caused many regressions hjl dot tools at gmail dot com
` (25 preceding siblings ...)
2008-09-03 19:46 ` hjl dot tools at gmail dot com
@ 2008-09-03 20:05 ` hjl dot tools at gmail dot com
2008-09-03 20:15 ` vmakarov at gcc dot gnu dot org
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From: hjl dot tools at gmail dot com @ 2008-09-03 20:05 UTC (permalink / raw)
To: gcc-bugs
------- Comment #24 from hjl dot tools at gmail dot com 2008-09-03 20:04 -------
(In reply to comment #23)
>
> Linux/ia64 has regressions:
>
> +FAIL: gfortran.dg/list_read_8.f90 -O0 execution test
> +FAIL: gfortran.dg/list_read_8.f90 -O1 execution test
> +FAIL: gfortran.dg/list_read_8.f90 -O2 execution test
> +FAIL: gfortran.dg/list_read_8.f90 -O3 -fomit-frame-pointer execution test
> +FAIL: gfortran.dg/list_read_8.f90 -O3 -fomit-frame-pointer -funroll-all-loops
> -finline-functions execution test
> +FAIL: gfortran.dg/list_read_8.f90 -O3 -fomit-frame-pointer -funroll-loops
> execution test
> +FAIL: gfortran.dg/list_read_8.f90 -O3 -g execution test
> +FAIL: gfortran.dg/list_read_8.f90 -Os execution test
>
> ligfortran is miscompiled since the executable runs correctly with
> ligfortran from revision 139589.
>
I opened PR 37359 to track it.
--
hjl dot tools at gmail dot com changed:
What |Removed |Added
----------------------------------------------------------------------------
BugsThisDependsOn| |37359
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37243
^ permalink raw reply [flat|nested] 36+ messages in thread
* [Bug middle-end/37243] [4.4 Regression] IRA causes wrong code generation
2008-08-26 15:01 [Bug middle-end/37243] New: [4.4 Regression] Revision 139590 caused many regressions hjl dot tools at gmail dot com
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2008-09-03 20:05 ` hjl dot tools at gmail dot com
@ 2008-09-03 20:15 ` vmakarov at gcc dot gnu dot org
2008-09-03 20:23 ` vmakarov at gcc dot gnu dot org
` (6 subsequent siblings)
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From: vmakarov at gcc dot gnu dot org @ 2008-09-03 20:15 UTC (permalink / raw)
To: gcc-bugs
------- Comment #25 from vmakarov at gcc dot gnu dot org 2008-09-03 20:13 -------
Subject: Bug 37243
Author: vmakarov
Date: Wed Sep 3 20:12:27 2008
New Revision: 139949
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=139949
Log:
2008-09-03 Vladimir Makarov <vmakarov@redhat.com>
PR rtl-opt/37243
* ira-conflicts.c (REG_SUBREG_P, go_through_subreg): New.
(process_regs_for_copy): Process subregs. Refine check when cost
is taken into account in ira-costs.c.
(process_reg_shuffles): Use REG_SUBREG_P.
(add_insn_allocno_copies): Ditto. Ignore modes.
* ira-color.c (conflict_allocno_vec): New.
(COST_HOP_DIVISOR): New macro.
(update_copy_costs_1): Use it.
(update_conflict_hard_regno_costs): New function.
(assign_hard_reg): Use it.
(ira_color): Allocate and free conflict_allocno_vec.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/ira-color.c
trunk/gcc/ira-conflicts.c
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37243
^ permalink raw reply [flat|nested] 36+ messages in thread
* [Bug middle-end/37243] [4.4 Regression] IRA causes wrong code generation
2008-08-26 15:01 [Bug middle-end/37243] New: [4.4 Regression] Revision 139590 caused many regressions hjl dot tools at gmail dot com
` (27 preceding siblings ...)
2008-09-03 20:15 ` vmakarov at gcc dot gnu dot org
@ 2008-09-03 20:23 ` vmakarov at gcc dot gnu dot org
2008-09-04 5:02 ` hjl at gcc dot gnu dot org
` (5 subsequent siblings)
34 siblings, 0 replies; 36+ messages in thread
From: vmakarov at gcc dot gnu dot org @ 2008-09-03 20:23 UTC (permalink / raw)
To: gcc-bugs
------- Comment #26 from vmakarov at gcc dot gnu dot org 2008-09-03 20:22 -------
Subject: Bug 37243
Author: vmakarov
Date: Wed Sep 3 20:20:57 2008
New Revision: 139952
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=139952
Log:
2008-09-03 Vladimir Makarov <vmakarov@redhat.com>
PR rtl-opt/37243
* ira-int.h (ira_loop_tree_node): Rename mentioned_allocnos to
all_allocnos.
* ira-color.c (print_loop_title): Use all_allocnos.
(color_pass): Ditto. Don't add border_allocnos. Check that
subloop allocno in the correspdoning bitmap all_allocnos.
* ira-emit.c (change_loop): Use all_allocnos.
* ira-build.c (create_loop_tree_nodes, finish_loop_tree_node):
Ditto.
(ira_create_allocno): Set up all_allocnos bit for the created
allocno.
(create_cap_allocno): Remove setting mentioned_allocnos.
(create_insn_allocnos): Ditto.
(remove_unnecessary_allocnos): Use all_allocnos.
(check_allocno_creation): Check that allocnos are in the
corresponding bitmap all_allocnos.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/ira-build.c
trunk/gcc/ira-color.c
trunk/gcc/ira-emit.c
trunk/gcc/ira-int.h
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37243
^ permalink raw reply [flat|nested] 36+ messages in thread
* [Bug middle-end/37243] [4.4 Regression] IRA causes wrong code generation
2008-08-26 15:01 [Bug middle-end/37243] New: [4.4 Regression] Revision 139590 caused many regressions hjl dot tools at gmail dot com
` (28 preceding siblings ...)
2008-09-03 20:23 ` vmakarov at gcc dot gnu dot org
@ 2008-09-04 5:02 ` hjl at gcc dot gnu dot org
2008-09-04 5:47 ` hjl dot tools at gmail dot com
` (4 subsequent siblings)
34 siblings, 0 replies; 36+ messages in thread
From: hjl at gcc dot gnu dot org @ 2008-09-04 5:02 UTC (permalink / raw)
To: gcc-bugs
------- Comment #27 from hjl at gcc dot gnu dot org 2008-09-04 05:01 -------
Subject: Bug 37243
Author: hjl
Date: Thu Sep 4 05:00:07 2008
New Revision: 139972
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=139972
Log:
2008-09-03 H.J. Lu <hongjiu.lu@intel.com>
PR rtl-optimization/37243
* gfortran.dg/pr37243.f: New.
Added:
branches/ira-merge/gcc/testsuite/ChangeLog.ira
branches/ira-merge/gcc/testsuite/gfortran.dg/pr37243.f
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37243
^ permalink raw reply [flat|nested] 36+ messages in thread
* [Bug middle-end/37243] [4.4 Regression] IRA causes wrong code generation
2008-08-26 15:01 [Bug middle-end/37243] New: [4.4 Regression] Revision 139590 caused many regressions hjl dot tools at gmail dot com
` (29 preceding siblings ...)
2008-09-04 5:02 ` hjl at gcc dot gnu dot org
@ 2008-09-04 5:47 ` hjl dot tools at gmail dot com
2008-09-04 13:36 ` hjl dot tools at gmail dot com
` (3 subsequent siblings)
34 siblings, 0 replies; 36+ messages in thread
From: hjl dot tools at gmail dot com @ 2008-09-04 5:47 UTC (permalink / raw)
To: gcc-bugs
------- Comment #28 from hjl dot tools at gmail dot com 2008-09-04 05:45 -------
(In reply to comment #23)
> on Linux/ia32. Linux/x86-64 has regressions:
>
> +FAIL: gcc.target/i386/pr34256.c scan-assembler-times mov 2
>
I opened PR 37364 to track it.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37243
^ permalink raw reply [flat|nested] 36+ messages in thread
* [Bug middle-end/37243] [4.4 Regression] IRA causes wrong code generation
2008-08-26 15:01 [Bug middle-end/37243] New: [4.4 Regression] Revision 139590 caused many regressions hjl dot tools at gmail dot com
` (30 preceding siblings ...)
2008-09-04 5:47 ` hjl dot tools at gmail dot com
@ 2008-09-04 13:36 ` hjl dot tools at gmail dot com
2008-09-04 15:48 ` hjl at gcc dot gnu dot org
` (2 subsequent siblings)
34 siblings, 0 replies; 36+ messages in thread
From: hjl dot tools at gmail dot com @ 2008-09-04 13:36 UTC (permalink / raw)
To: gcc-bugs
------- Comment #29 from hjl dot tools at gmail dot com 2008-09-04 13:34 -------
On ira-merge branch at revision 139972, there are no regression
on Linux/ia32 and Linux/ia64. Linux/x86-64 has regressions:
+FAIL: gcc.target/i386/pr34256.c scan-assembler-times mov 2
It is tracked by PR 37364.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37243
^ permalink raw reply [flat|nested] 36+ messages in thread
* [Bug middle-end/37243] [4.4 Regression] IRA causes wrong code generation
2008-08-26 15:01 [Bug middle-end/37243] New: [4.4 Regression] Revision 139590 caused many regressions hjl dot tools at gmail dot com
` (31 preceding siblings ...)
2008-09-04 13:36 ` hjl dot tools at gmail dot com
@ 2008-09-04 15:48 ` hjl at gcc dot gnu dot org
2008-09-04 18:50 ` rsandifo at gcc dot gnu dot org
2008-09-04 21:06 ` hjl dot tools at gmail dot com
34 siblings, 0 replies; 36+ messages in thread
From: hjl at gcc dot gnu dot org @ 2008-09-04 15:48 UTC (permalink / raw)
To: gcc-bugs
------- Comment #30 from hjl at gcc dot gnu dot org 2008-09-04 15:47 -------
Subject: Bug 37243
Author: hjl
Date: Thu Sep 4 15:46:05 2008
New Revision: 139987
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=139987
Log:
2008-09-04 H.J. Lu <hongjiu.lu@intel.com>
PR rtl-optimization/37243
* gfortran.dg/pr37243.f: New.
Added:
trunk/gcc/testsuite/gfortran.dg/pr37243.f
Modified:
trunk/gcc/testsuite/ChangeLog
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37243
^ permalink raw reply [flat|nested] 36+ messages in thread
* [Bug middle-end/37243] [4.4 Regression] IRA causes wrong code generation
2008-08-26 15:01 [Bug middle-end/37243] New: [4.4 Regression] Revision 139590 caused many regressions hjl dot tools at gmail dot com
` (32 preceding siblings ...)
2008-09-04 15:48 ` hjl at gcc dot gnu dot org
@ 2008-09-04 18:50 ` rsandifo at gcc dot gnu dot org
2008-09-04 21:06 ` hjl dot tools at gmail dot com
34 siblings, 0 replies; 36+ messages in thread
From: rsandifo at gcc dot gnu dot org @ 2008-09-04 18:50 UTC (permalink / raw)
To: gcc-bugs
------- Comment #31 from rsandifo at gcc dot gnu dot org 2008-09-04 18:48 -------
Subject: Bug 37243
Author: rsandifo
Date: Thu Sep 4 18:47:35 2008
New Revision: 139993
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=139993
Log:
gcc/
PR middle-end/37243
* ira-build.c (form_loop_tree): Reverse BB walk.
(create_bb_allocnos): Likewise.
* ira-lives.c (make_regno_born_and_dead, regs_set): Delete.
(mark_reg_store): Rename to...
(mark_ref_live): ...this and take a df_ref argument instead of
note_stores arguments. Assert that we have a register.
(mark_reg_clobber): Delete.
(def_conflicts_with_inputs_p): New function.
(mark_reg_conflicts): Delete.
(mark_reg_death): Rename to...
(mark_ref_dead): ...this and take a df_ref argument instead of
a register. Assert that we have a register.
(process_bb_node_lives): Hoist frequency calculation out of
instruction walk. Convert from a forwards scan to a backwards scan.
Use DF_REF_USES and DF_REF_DEFS instead of register notes and
note_stores. Remove EH_RETURN_DATA_REGNO and regs_set handling.
(create_allocno_live_ranges): Don't create regs_set.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/ira-build.c
trunk/gcc/ira-lives.c
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37243
^ permalink raw reply [flat|nested] 36+ messages in thread
* [Bug middle-end/37243] [4.4 Regression] IRA causes wrong code generation
2008-08-26 15:01 [Bug middle-end/37243] New: [4.4 Regression] Revision 139590 caused many regressions hjl dot tools at gmail dot com
` (33 preceding siblings ...)
2008-09-04 18:50 ` rsandifo at gcc dot gnu dot org
@ 2008-09-04 21:06 ` hjl dot tools at gmail dot com
34 siblings, 0 replies; 36+ messages in thread
From: hjl dot tools at gmail dot com @ 2008-09-04 21:06 UTC (permalink / raw)
To: gcc-bugs
------- Comment #32 from hjl dot tools at gmail dot com 2008-09-04 21:05 -------
I am closing this bug. We will track PR 37364 separately.
--
hjl dot tools at gmail dot com changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution| |FIXED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37243
^ permalink raw reply [flat|nested] 36+ messages in thread
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2008-09-04 5:02 ` hjl at gcc dot gnu dot org
2008-09-04 5:47 ` hjl dot tools at gmail dot com
2008-09-04 13:36 ` hjl dot tools at gmail dot com
2008-09-04 15:48 ` hjl at gcc dot gnu dot org
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