* [Bug lto/40409] [LTO] ICE in expand_shift, at expmed.c:2263
2009-06-10 21:26 [Bug lto/40409] New: [LTO] ICE in expand_shift, at expmed.c:2263 rmansfield at qnx dot com
@ 2009-06-10 21:54 ` rmansfield at gmail dot com
2009-06-11 2:58 ` rmansfield at qnx dot com
` (11 subsequent siblings)
12 siblings, 0 replies; 14+ messages in thread
From: rmansfield at gmail dot com @ 2009-06-10 21:54 UTC (permalink / raw)
To: gcc-bugs
------- Comment #1 from rmansfield at gmail dot com 2009-06-10 21:53 -------
Created an attachment (id=17977)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=17977&action=view)
testcase
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40409
^ permalink raw reply [flat|nested] 14+ messages in thread* [Bug lto/40409] [LTO] ICE in expand_shift, at expmed.c:2263
2009-06-10 21:26 [Bug lto/40409] New: [LTO] ICE in expand_shift, at expmed.c:2263 rmansfield at qnx dot com
2009-06-10 21:54 ` [Bug lto/40409] " rmansfield at gmail dot com
@ 2009-06-11 2:58 ` rmansfield at qnx dot com
2009-06-11 3:01 ` rmansfield at qnx dot com
` (10 subsequent siblings)
12 siblings, 0 replies; 14+ messages in thread
From: rmansfield at qnx dot com @ 2009-06-11 2:58 UTC (permalink / raw)
To: gcc-bugs
[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #1: Type: text/plain, Size: 7723 bytes --]
------- Comment #2 from rmansfield at qnx dot com 2009-06-11 02:58 -------
I reproduced this on a i686-pc-linux-gnu target:
$ ./xgcc -v
Using built-in specs.
COLLECT_GCC=./xgcc
Target: i686-pc-linux-gnu
Configured with: ../configure --enable-languages=c --enable-lto
--disable-bootstrap
Thread model: posix
gcc version 4.5.0 20090605 (experimental) (lto merged with rev 148228)
ryan@ryan:~/gcc/lto/x86-build/gcc$ ./xgcc -B. -shared -flto casinhl.o
In file included from /home/ryan/svn/product/trunk/lib/m/inc/xxcasinh.h:117:0,
from /home/ryan/svn/product/trunk/lib/m/inc/xxcasinh.h:117,
from /home/ryan/svn/product/trunk/lib/m/inc/xxcasinh.h:115,
from /home/ryan/svn/product/trunk/lib/m/inc/xxcasinh.h:115,
from /home/ryan/svn/product/trunk/lib/m/inc/xxcasinh.h:114,
from /home/ryan/svn/product/trunk/lib/m/inc/xxcasinh.h:114,
from /home/ryan/svn/product/trunk/lib/m/inc/xxcasinh.h:112,
from /home/ryan/svn/product/trunk/lib/m/inc/xxcasinh.h:111,
from /home/ryan/svn/product/trunk/lib/m/inc/xxcasinh.h:108,
from /home/ryan/svn/product/trunk/lib/m/inc/xxcasinh.h:108,
from /home/ryan/svn/product/trunk/lib/m/inc/xxcasinh.h:108,
from /home/ryan/svn/product/trunk/lib/m/inc/xxcasinh.h:103,
from /home/ryan/svn/product/trunk/lib/m/inc/xxcasinh.h:103,
from /home/ryan/svn/product/trunk/lib/m/inc/xxcasinh.h:103,
from /home/ryan/svn/product/trunk/lib/m/inc/xxcasinh.h:102,
from /home/ryan/svn/product/trunk/lib/m/inc/xxcasinh.h:100,
from /home/ryan/svn/product/trunk/lib/m/inc/xxcasinh.h:100,
from /home/ryan/svn/product/trunk/lib/m/inc/xxcasinh.h:98,
from /home/ryan/svn/product/trunk/lib/m/inc/xxcasinh.h:98,
from /home/ryan/svn/product/trunk/lib/m/inc/xxcasinh.h:98,
from /home/ryan/svn/product/trunk/lib/m/inc/xxcasinh.h:95,
from /home/ryan/svn/product/trunk/lib/m/inc/xxcasinh.h:95,
from /home/ryan/svn/product/trunk/lib/m/inc/xxcasinh.h:93,
from /home/ryan/svn/product/trunk/lib/m/inc/xxcasinh.h:93,
from /home/ryan/svn/product/trunk/lib/m/inc/xxcasinh.h:93,
from /home/ryan/svn/product/trunk/lib/m/inc/xxcasinh.h:90,
from /home/ryan/svn/product/trunk/lib/m/inc/xxcasinh.h:90,
from /home/ryan/svn/product/trunk/lib/m/inc/xxcasinh.h:87,
from /home/ryan/svn/product/trunk/lib/m/inc/xxcasinh.h:86,
from /home/ryan/svn/product/trunk/lib/m/inc/xxcasinh.h:85,
from /home/ryan/svn/product/trunk/lib/m/inc/xxcasinh.h:84,
from /home/ryan/svn/product/trunk/lib/m/inc/xxcasinh.h:81,
from /home/ryan/svn/product/trunk/lib/m/inc/xxcasinh.h:80,
from /home/ryan/svn/product/trunk/lib/m/inc/xxcasinh.h:80,
from /home/ryan/svn/product/trunk/lib/m/inc/xxcasinh.h:78,
from /home/ryan/svn/product/trunk/lib/m/inc/xxcasinh.h:78,
from /home/ryan/svn/product/trunk/lib/m/inc/xxcasinh.h:78,
from /home/ryan/svn/product/trunk/lib/m/inc/xxcasinh.h:78,
from /home/ryan/svn/product/trunk/lib/m/inc/xxcasinh.h:78,
from /home/ryan/svn/product/trunk/lib/m/inc/xxcasinh.h:78,
from /home/ryan/svn/product/trunk/lib/m/inc/xxcasinh.h:77,
from /home/ryan/svn/product/trunk/lib/m/inc/xxcasinh.h:77,
from /home/ryan/svn/product/trunk/lib/m/inc/xxcasinh.h:77,
from /home/ryan/svn/product/trunk/lib/m/inc/xxcasinh.h:77,
from /home/ryan/svn/product/trunk/lib/m/inc/xxcasinh.h:77,
from /home/ryan/svn/product/trunk/lib/m/inc/xxcasinh.h:73,
from /home/ryan/svn/product/trunk/lib/m/inc/xxcasinh.h:73,
from /home/ryan/svn/product/trunk/lib/m/inc/xxcasinh.h:73,
from /home/ryan/svn/product/trunk/lib/m/inc/xxcasinh.h:72,
from /home/ryan/svn/product/trunk/lib/m/inc/xxcasinh.h:70,
from /home/ryan/svn/product/trunk/lib/m/inc/xxcasinh.h:68,
from /home/ryan/svn/product/trunk/lib/m/inc/xxcasinh.h:68,
from /home/ryan/svn/product/trunk/lib/m/inc/xxcasinh.h:68,
from /home/ryan/svn/product/trunk/lib/m/inc/xxcasinh.h:68,
from /home/ryan/svn/product/trunk/lib/m/inc/xxcasinh.h:68,
from /home/ryan/svn/product/trunk/lib/m/inc/xxcasinh.h:68,
from /home/ryan/svn/product/trunk/lib/m/inc/xxcasinh.h:68,
from /home/ryan/svn/product/trunk/lib/m/inc/xxcasinh.h:67,
from /home/ryan/svn/product/trunk/lib/m/inc/xxcasinh.h:63,
from /home/ryan/svn/product/trunk/lib/m/inc/xxcasinh.h:63,
from /home/ryan/svn/product/trunk/lib/m/inc/xxcasinh.h:63,
from /home/ryan/svn/product/trunk/lib/m/inc/xxcasinh.h:62,
from /home/ryan/svn/product/trunk/lib/m/inc/xxcasinh.h:60,
from /home/ryan/svn/product/trunk/lib/m/inc/xxcasinh.h:59,
from /home/ryan/svn/product/trunk/lib/m/inc/xxcasinh.h:57,
from /home/ryan/svn/product/trunk/lib/m/inc/xxcasinh.h:56,
from /home/ryan/svn/product/trunk/lib/m/inc/xxcasinh.h:52,
from /home/ryan/svn/product/trunk/lib/m/inc/xxcasinh.h:51,
from /home/ryan/svn/product/trunk/lib/m/inc/xxcasinh.h:49,
from /home/ryan/svn/product/trunk/lib/m/inc/xxcasinh.h:48,
from /home/ryan/svn/product/trunk/lib/m/inc/xxcasinh.h:46,
from /home/ryan/svn/product/trunk/lib/m/inc/xxcasinh.h:45,
from /home/ryan/svn/product/trunk/lib/m/inc/xxcasinh.h:41,
from /home/ryan/svn/product/trunk/lib/m/inc/xxcasinh.h:40,
from /home/ryan/svn/product/trunk/lib/m/inc/xxcasinh.h:38,
from /home/ryan/svn/product/trunk/lib/m/inc/xxcasinh.h:36,
from /home/ryan/svn/product/trunk/lib/m/inc/xxcasinh.h:35,
from /home/ryan/svn/product/trunk/lib/m/inc/xxcasinh.h:33,
from /home/ryan/svn/product/trunk/lib/m/inc/xxcasinh.h:33,
from /home/ryan/svn/product/trunk/lib/m/inc/xxcasinh.h:32,
from /home/ryan/svn/product/trunk/lib/m/inc/xxcasinh.h:29,
from /home/ryan/svn/product/trunk/lib/m/inc/xxcasinh.h:28,
from /home/ryan/svn/product/trunk/lib/m/inc/xxcasinh.h:27,
from /home/ryan/svn/product/trunk/lib/m/inc/xxcasinh.h:27,
from /home/ryan/svn/product/trunk/lib/m/inc/xxcasinh.h:26,
from /home/ryan/svn/product/trunk/lib/m/inc/xxcasinh.h:26,
from :17:
/home/ryan/svn/product/trunk/lib/m/inc/xxcasinh.h: In function âcasinhlâ:
/home/ryan/svn/product/trunk/lib/m/inc/xxcasinh.h:120:1: internal compiler
error: in expand_mult, at expmed.c:3242
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
lto-wrapper: ././xgcc returned 1 exit status
collect2: lto-wrapper returned 1 exit status
--
rmansfield at qnx dot com changed:
What |Removed |Added
----------------------------------------------------------------------------
Version|4.5.0 |lto
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40409
^ permalink raw reply [flat|nested] 14+ messages in thread* [Bug lto/40409] [LTO] ICE in expand_shift, at expmed.c:2263
2009-06-10 21:26 [Bug lto/40409] New: [LTO] ICE in expand_shift, at expmed.c:2263 rmansfield at qnx dot com
2009-06-10 21:54 ` [Bug lto/40409] " rmansfield at gmail dot com
2009-06-11 2:58 ` rmansfield at qnx dot com
@ 2009-06-11 3:01 ` rmansfield at qnx dot com
2009-07-09 5:40 ` bje at gcc dot gnu dot org
` (9 subsequent siblings)
12 siblings, 0 replies; 14+ messages in thread
From: rmansfield at qnx dot com @ 2009-06-11 3:01 UTC (permalink / raw)
To: gcc-bugs
------- Comment #3 from rmansfield at qnx dot com 2009-06-11 03:01 -------
Created an attachment (id=17979)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=17979&action=view)
x86 testcase
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40409
^ permalink raw reply [flat|nested] 14+ messages in thread* [Bug lto/40409] [LTO] ICE in expand_shift, at expmed.c:2263
2009-06-10 21:26 [Bug lto/40409] New: [LTO] ICE in expand_shift, at expmed.c:2263 rmansfield at qnx dot com
` (2 preceding siblings ...)
2009-06-11 3:01 ` rmansfield at qnx dot com
@ 2009-07-09 5:40 ` bje at gcc dot gnu dot org
2009-09-16 13:29 ` rguenth at gcc dot gnu dot org
` (8 subsequent siblings)
12 siblings, 0 replies; 14+ messages in thread
From: bje at gcc dot gnu dot org @ 2009-07-09 5:40 UTC (permalink / raw)
To: gcc-bugs
------- Comment #4 from bje at gcc dot gnu dot org 2009-07-09 05:39 -------
The original ICE has now been replaced with:
$ ./xgcc -B. -flto -shared acosh.o acosl.o
lto1: internal compiler error: in lto_read_file_options, at lto-opts.c:348
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
(lto revision 149400)
--
bje 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 |2009-07-09 05:39:56
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40409
^ permalink raw reply [flat|nested] 14+ messages in thread* [Bug lto/40409] [LTO] ICE in expand_shift, at expmed.c:2263
2009-06-10 21:26 [Bug lto/40409] New: [LTO] ICE in expand_shift, at expmed.c:2263 rmansfield at qnx dot com
` (3 preceding siblings ...)
2009-07-09 5:40 ` bje at gcc dot gnu dot org
@ 2009-09-16 13:29 ` rguenth at gcc dot gnu dot org
2009-09-16 13:59 ` rmansfield at qnx dot com
` (7 subsequent siblings)
12 siblings, 0 replies; 14+ messages in thread
From: rguenth at gcc dot gnu dot org @ 2009-09-16 13:29 UTC (permalink / raw)
To: gcc-bugs
------- Comment #5 from rguenth at gcc dot gnu dot org 2009-09-16 13:29 -------
Object files are not useful anymore. Please provide sources.
--
rguenth at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |WAITING
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40409
^ permalink raw reply [flat|nested] 14+ messages in thread* [Bug lto/40409] [LTO] ICE in expand_shift, at expmed.c:2263
2009-06-10 21:26 [Bug lto/40409] New: [LTO] ICE in expand_shift, at expmed.c:2263 rmansfield at qnx dot com
` (4 preceding siblings ...)
2009-09-16 13:29 ` rguenth at gcc dot gnu dot org
@ 2009-09-16 13:59 ` rmansfield at qnx dot com
2009-09-16 14:02 ` rmansfield at qnx dot com
` (6 subsequent siblings)
12 siblings, 0 replies; 14+ messages in thread
From: rmansfield at qnx dot com @ 2009-09-16 13:59 UTC (permalink / raw)
To: gcc-bugs
------- Comment #6 from rmansfield at qnx dot com 2009-09-16 13:59 -------
I now hit PR41173 when I try to reproduce this problem.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40409
^ permalink raw reply [flat|nested] 14+ messages in thread* [Bug lto/40409] [LTO] ICE in expand_shift, at expmed.c:2263
2009-06-10 21:26 [Bug lto/40409] New: [LTO] ICE in expand_shift, at expmed.c:2263 rmansfield at qnx dot com
` (5 preceding siblings ...)
2009-09-16 13:59 ` rmansfield at qnx dot com
@ 2009-09-16 14:02 ` rmansfield at qnx dot com
2009-09-17 2:01 ` rmansfield at qnx dot com
` (5 subsequent siblings)
12 siblings, 0 replies; 14+ messages in thread
From: rmansfield at qnx dot com @ 2009-09-16 14:02 UTC (permalink / raw)
To: gcc-bugs
------- Comment #7 from rmansfield at qnx dot com 2009-09-16 14:02 -------
I can reproduce the x86 ICE with gcc version 4.5.0 20090902 (experimental) [lto
revision 151401] (lto merged with rev 150842). I will try again with the
latest and reduce a source testcase.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40409
^ permalink raw reply [flat|nested] 14+ messages in thread* [Bug lto/40409] [LTO] ICE in expand_shift, at expmed.c:2263
2009-06-10 21:26 [Bug lto/40409] New: [LTO] ICE in expand_shift, at expmed.c:2263 rmansfield at qnx dot com
` (6 preceding siblings ...)
2009-09-16 14:02 ` rmansfield at qnx dot com
@ 2009-09-17 2:01 ` rmansfield at qnx dot com
2009-09-17 9:44 ` rguenth at gcc dot gnu dot org
` (4 subsequent siblings)
12 siblings, 0 replies; 14+ messages in thread
From: rmansfield at qnx dot com @ 2009-09-17 2:01 UTC (permalink / raw)
To: gcc-bugs
[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #1: Type: text/plain, Size: 1983 bytes --]
------- Comment #8 from rmansfield at qnx dot com 2009-09-17 02:01 -------
I hit the PR41173 using an updated powerpc-unknown-linux-gnu configuration.
The x86 ICE is still reproducible using a reduced testcase and a mismatch of
optimizations levels.
$ ./xgcc -v
Using built-in specs.
COLLECT_GCC=./xgcc
Target: i686-pc-linux-gnu
Configured with: ../configure --enable-languages=c++ --enable-lto
--disable-bootstrap
Thread model: posix
gcc version 4.5.0 20090914 (experimental) [lto revision 151753] (lto merged
with rev 150842)
$ cat ice.i
typedef long double _Complex _Lcomplex;
_Lcomplex (casinhl)(_Lcomplex x) {
long double re = creall(x);
long double im = cimagl(x);
const short errx = _LDtest(&re);
const short erry = _LDtest(&im);
long double u, v;
if (errx == 2) if (erry == 2 || erry == 0) {
const _Lcomplex w = csqrtl(_LCbuild(1.0L - im, re));
const _Lcomplex z = csqrtl(_LCbuild(1.0L + im, -re));
v = atan2l(im, creall(((w) * (z))));
}
}
$ ./xgcc -B. -O -flto -lto-test ice.i -c
ice.i: In function âcasinhlâ:
ice.i:3:20: warning: incompatible implicit declaration of built-in function
âcreallâ
ice.i:4:20: warning: incompatible implicit declaration of built-in function
âcimaglâ
ice.i:9:25: warning: incompatible implicit declaration of built-in function
âcsqrtlâ
ice.i:11:9: warning: incompatible implicit declaration of built-in function
âatan2lâ
$ ./xgcc -B. -shared -flto ice.o -flto
In file included from ice.i:69:0,
from :5:
ice.i: In function âcasinhlâ:
ice.i:11:32: internal compiler error: in expand_mult, at expmed.c:3253
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
lto-wrapper: ././xgcc returned 1 exit status
collect2: lto-wrapper returned 1 exit status
Also, has -lto-test (mentioned in the LTO_Driver wiki page) been removed or was
it ever added?
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40409
^ permalink raw reply [flat|nested] 14+ messages in thread* [Bug lto/40409] [LTO] ICE in expand_shift, at expmed.c:2263
2009-06-10 21:26 [Bug lto/40409] New: [LTO] ICE in expand_shift, at expmed.c:2263 rmansfield at qnx dot com
` (7 preceding siblings ...)
2009-09-17 2:01 ` rmansfield at qnx dot com
@ 2009-09-17 9:44 ` rguenth at gcc dot gnu dot org
2009-09-28 18:57 ` rmansfield at qnx dot com
` (3 subsequent siblings)
12 siblings, 0 replies; 14+ messages in thread
From: rguenth at gcc dot gnu dot org @ 2009-09-17 9:44 UTC (permalink / raw)
To: gcc-bugs
------- Comment #9 from rguenth at gcc dot gnu dot org 2009-09-17 09:44 -------
I don't remember -lto-test, so it was probably never there.
Ok, so this bug is again of the sort "run cc1 with optimization, lto1 without".
We'll have to think about a solution here, fixing up all the issues that arise
will be hard, so likely we'll just force optimization level to 1 from zero if
optimization was on during cc1.
--
rguenth at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|WAITING |NEW
GCC target triplet|powerpc-unknown-linux-gnu |powerpc-unknown-linux-gnu,
| |i?86-*-*
Last reconfirmed|2009-07-09 05:39:56 |2009-09-17 09:44:37
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40409
^ permalink raw reply [flat|nested] 14+ messages in thread* [Bug lto/40409] [LTO] ICE in expand_shift, at expmed.c:2263
2009-06-10 21:26 [Bug lto/40409] New: [LTO] ICE in expand_shift, at expmed.c:2263 rmansfield at qnx dot com
` (8 preceding siblings ...)
2009-09-17 9:44 ` rguenth at gcc dot gnu dot org
@ 2009-09-28 18:57 ` rmansfield at qnx dot com
2009-10-14 19:49 ` rguenth at gcc dot gnu dot org
` (2 subsequent siblings)
12 siblings, 0 replies; 14+ messages in thread
From: rmansfield at qnx dot com @ 2009-09-28 18:57 UTC (permalink / raw)
To: gcc-bugs
------- Comment #10 from rmansfield at qnx dot com 2009-09-28 18:57 -------
Still happens with gcc version 4.5.0 20090928 (experimental) [lto revision
152240] (lto merged with rev 150842)
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40409
^ permalink raw reply [flat|nested] 14+ messages in thread* [Bug lto/40409] [LTO] ICE in expand_shift, at expmed.c:2263
2009-06-10 21:26 [Bug lto/40409] New: [LTO] ICE in expand_shift, at expmed.c:2263 rmansfield at qnx dot com
` (9 preceding siblings ...)
2009-09-28 18:57 ` rmansfield at qnx dot com
@ 2009-10-14 19:49 ` rguenth at gcc dot gnu dot org
2009-12-11 16:40 ` [Bug lto/40409] [LTO] ICE in expand_shift, at expmed.c:2263, -O0 vs -Ox misses tree lowering phases rguenth at gcc dot gnu dot org
2010-01-10 21:38 ` rguenth at gcc dot gnu dot org
12 siblings, 0 replies; 14+ messages in thread
From: rguenth at gcc dot gnu dot org @ 2009-10-14 19:49 UTC (permalink / raw)
To: gcc-bugs
------- Comment #11 from rguenth at gcc dot gnu dot org 2009-10-14 19:49 -------
PR41173 should be fixed - can you provide preprocessed source to trigger the
original failure now?
--
rguenth at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |WAITING
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40409
^ permalink raw reply [flat|nested] 14+ messages in thread* [Bug lto/40409] [LTO] ICE in expand_shift, at expmed.c:2263, -O0 vs -Ox misses tree lowering phases
2009-06-10 21:26 [Bug lto/40409] New: [LTO] ICE in expand_shift, at expmed.c:2263 rmansfield at qnx dot com
` (10 preceding siblings ...)
2009-10-14 19:49 ` rguenth at gcc dot gnu dot org
@ 2009-12-11 16:40 ` rguenth at gcc dot gnu dot org
2010-01-10 21:38 ` rguenth at gcc dot gnu dot org
12 siblings, 0 replies; 14+ messages in thread
From: rguenth at gcc dot gnu dot org @ 2009-12-11 16:40 UTC (permalink / raw)
To: gcc-bugs
------- Comment #12 from rguenth at gcc dot gnu dot org 2009-12-11 16:40 -------
I can confirm the ICE from comment #8 still is present on i?86-linux.
#1 0x0820c740 in expand_mult (mode=XCmode, op0=0x0, op1=0xb77d3ba0,
target=0xb77d3b7c, unsignedp=0)
at /home/richard/src/trunk/gcc/expmed.c:3253
3253 gcc_assert (op0);
which is because expand_binop seems to fail.
3246 /* This used to use umul_optab if unsigned, but for non-widening
multiply
3247 there is no difference between signed and unsigned. */
(gdb) l
3248 op0 = expand_binop (mode,
3249 ! unsignedp
3250 && flag_trapv && (GET_MODE_CLASS(mode) ==
MODE_INT)
3251 ? smulv_optab : smul_optab,
3252 op0, op1, target, unsignedp, OPTAB_LIB_WIDEN);
3253 gcc_assert (op0);
expand_binop (mode=XCmode, binoptab=0x8c72de0, op0=0xb77d3b88, op1=0xb77d3ba0,
target=0xb77d3b7c, unsignedp=0, methods=OPTAB_LIB_WIDEN)
at /home/richard/src/trunk/gcc/optabs.c:1552
(gdb) call debug_rtx (op0)
(mem/s/c:XC (plus:SI (reg/f:SI 54 virtual-stack-vars)
(const_int -32 [0xffffffe0])) [0 w+0 S24 A32])
(gdb) call debug_rtx (op1)
(mem/s/c:XC (plus:SI (reg/f:SI 54 virtual-stack-vars)
(const_int -64 [0xffffffc0])) [0 z+0 S24 A32])
(gdb) call debug_rtx (target)
(concat:XC (reg:XF 80 [ D.2040 ])
(reg:XF 81 [ D.2040+12 ]))
the optab expansion fails because there is no optab_libfunc for
smul_optab and XCmode or TCmode.
We arrive here because at -O1 we lower complex operations after writing
LTO IL and at -O0 we do so before. So if you combine that we never
lower complex operations properly.
--
rguenth at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|WAITING |NEW
Last reconfirmed|2009-09-17 09:44:37 |2009-12-11 16:40:07
date| |
Summary|[LTO] ICE in expand_shift, |[LTO] ICE in expand_shift,
|at expmed.c:2263 |at expmed.c:2263, -O0 vs -Ox
| |misses tree lowering phases
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40409
^ permalink raw reply [flat|nested] 14+ messages in thread* [Bug lto/40409] [LTO] ICE in expand_shift, at expmed.c:2263, -O0 vs -Ox misses tree lowering phases
2009-06-10 21:26 [Bug lto/40409] New: [LTO] ICE in expand_shift, at expmed.c:2263 rmansfield at qnx dot com
` (11 preceding siblings ...)
2009-12-11 16:40 ` [Bug lto/40409] [LTO] ICE in expand_shift, at expmed.c:2263, -O0 vs -Ox misses tree lowering phases rguenth at gcc dot gnu dot org
@ 2010-01-10 21:38 ` rguenth at gcc dot gnu dot org
12 siblings, 0 replies; 14+ messages in thread
From: rguenth at gcc dot gnu dot org @ 2010-01-10 21:38 UTC (permalink / raw)
To: gcc-bugs
------- Comment #13 from rguenth at gcc dot gnu dot org 2010-01-10 21:38 -------
PR42678 has a not so confused audit trail but is about the same (remaining)
issue.
*** This bug has been marked as a duplicate of 42678 ***
--
rguenth at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution| |DUPLICATE
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40409
^ permalink raw reply [flat|nested] 14+ messages in thread