[Bug target/43726] New: lm32-rtems* ICE

[Bug target/43726] New: lm32-rtems* ICE

[corsepiu at gcc dot gnu dot org]

gcc-4.5.0-RC-20100406 triggers an ICE while building RTEMS:
...
lm32-rtems4.11-gcc --pipe -DHAVE_CONFIG_H   -I..
-I../../cpukit/../../../lm32_evr/lib/include -DNO_SSI -DNO_SSL -DNO_CGI   -O0
-g -Wall -Wimplicit-function-declaration -Wstrict-prototypes -Wnested-externs
-MT l
../../../../../../c/src/../../cpukit/mghttpd/mongoose.c: In function
'handle_request_body':
../../../../../../c/src/../../cpukit/mghttpd/mongoose.c:3132:1: error:
unrecognizable insn:
(insn 333 332 334 47
../../../../../../c/src/../../cpukit/mghttpd/mongoose.c:3122 (set (reg:SI 157)
        (subreg:SI (mem/c/i:DI (plus:SI (reg/f:SI 33 virtual-stack-vars)
                    (const_int -8 [0xfffffffffffffff8])) [0 content_len+0 S8
A64]) 4)) -1 (nil))
../../../../../../c/src/../../cpukit/mghttpd/mongoose.c:3132:1: internal
compiler error: in extract_insn, at recog.c:2103
Please submit a full bug report,

A gcc-4.4.3 based lm32-rtems*-gcc succeed in building the identical sources
without any complaint => regression


-- 
           Summary: lm32-rtems* ICE
           Product: gcc
           Version: 4.5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: corsepiu at gcc dot gnu dot org
GCC target triplet: lm32-rtems*


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43726

[Bug target/43726] lm32-rtems* ICE

[corsepiu at gcc dot gnu dot org]

------- Comment #1 from corsepiu at gcc dot gnu dot org  2010-04-12 11:52 -------
Created an attachment (id=20363)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=20363&action=view)
*.i of the source file triggering the ICE


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43726

[Bug target/43726] lm32-rtems* ICE

[joel at gcc dot gnu dot org]

------- Comment #2 from joel at gcc dot gnu dot org  2010-04-12 12:11 -------
Did you have patches to get past
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43527 or has it just gone away?


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43726

[Bug target/43726] lm32-rtems* ICE

[corsepiu at gcc dot gnu dot org]

------- Comment #3 from corsepiu at gcc dot gnu dot org  2010-04-12 12:31 -------
(In reply to comment #2)
> Did you have patches to get past
> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43527 or has it just gone away?
Neither. 

This breakdown is with the rtems-4.11-lm32-rtems4.11-gcc rpm, 
i.e. it is built from the gcc-4.5.0-RC-20100406 candidate tarball.

Also, unlike what you write in 
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43527#c1
(compiles at -O0, doesn't compile at -O1), this breakdown is with -O0.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43726

[Bug target/43726] [4.5/4.6 Regression] lm32-rtems* ICE

[pinskia at gcc dot gnu dot org]

-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |ice-on-valid-code
            Summary|lm32-rtems* ICE             |[4.5/4.6 Regression] lm32-
                   |                            |rtems* ICE
   Target Milestone|---                         |4.5.1


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43726

[Bug target/43726] [4.5/4.6 Regression] lm32-rtems* ICE

[corsepiu at gcc dot gnu dot org]

------- Comment #4 from corsepiu at gcc dot gnu dot org  2010-04-15 03:31 -------
For the record: Bug is also present in gcc-4.5.0 (final).


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43726

[Bug target/43726] [4.5/4.6 Regression] lm32-rtems* ICE

[rguenth at gcc dot gnu dot org]

-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Priority|P3                          |P4


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43726

[Bug target/43726] [4.5/4.6 Regression] lm32-rtems* ICE

[jon at beniston dot com]

------- Comment #5 from jon at beniston dot com  2010-05-25 23:51 -------
This is the same as 43805. Looks like it can be fixed by removing
GO_IF_MODE_DEPENDENT_ADDRESS from lm32.h. I'll submit a patch shotly.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43726

[Bug target/43726] [4.5/4.6 Regression] lm32-rtems* ICE

[jon at beniston dot com]

------- Comment #6 from jon at beniston dot com  2010-05-26 09:15 -------
Created an attachment (id=20747)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=20747&action=view)
Possible fix for bug


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43726

[Bug target/43726] [4.5/4.6 Regression] lm32-rtems* ICE

[jbeniston at gcc dot gnu dot org]

------- Comment #7 from jbeniston at gcc dot gnu dot org  2010-05-27 15:06 -------
Subject: Bug 43726

Author: jbeniston
Date: Thu May 27 15:05:48 2010
New Revision: 159922

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=159922
Log:
PR 43726 * config/lm32/lm32.h: Remove definition of
GO_IF_MODE_DEPENDENT_ADDRESS.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/lm32/lm32.h


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43726

[Bug target/43726] [4.5/4.6 Regression] lm32-rtems* ICE

[corsepiu at gcc dot gnu dot org]

------- Comment #8 from corsepiu at gcc dot gnu dot org  2010-05-27 15:15 -------
FWIW: I added your patch to the RTEMS lm32-gcc-4.5.0 toolchains.

With this patch applied, the ICE during building RTEMS, I had experienced does
not occur anymore. Compiling RTEMS at -O2 also seems to work.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43726

[Bug target/43726] [4.5/4.6 Regression] lm32-rtems* ICE

[jbeniston at gcc dot gnu dot org]

------- Comment #9 from jbeniston at gcc dot gnu dot org  2010-05-27 15:45 -------
Subject: Bug 43726

Author: jbeniston
Date: Thu May 27 15:45:11 2010
New Revision: 159926

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=159926
Log:
2010-05-27  Jon Beniston <jon@beniston.com>

        PR 43726
        * config/lm32/lm32.h: Remove definition of
        GO_IF_MODE_DEPENDENT_ADDRESS. Update copyright year.

Modified:
    branches/gcc-4_5-branch/gcc/ChangeLog
    branches/gcc-4_5-branch/gcc/config/lm32/lm32.h


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43726

[Bug target/43726] [4.5/4.6 Regression] lm32-rtems* ICE

[rguenth at gcc dot gnu dot org]

------- Comment #10 from rguenth at gcc dot gnu dot org  2010-07-31 09:29 -------
GCC 4.5.1 is being released, adjusting target milestone.


-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|4.5.1                       |4.5.2


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43726