optimization/5429: gcc 3.1 20020114 fails with Internal compiler error in verify_wide_reg_1, at flow.c:526

optimization/5429: gcc 3.1 20020114 fails with Internal compiler error in verify_wide_reg_1, at flow.c:526

[pthomas]

>Number:         5429
>Category:       optimization
>Synopsis:       gcc 3.1 20020114 fails with Internal compiler error in verify_wide_reg_1, at flow.c:526
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          ice-on-legal-code
>Submitter-Id:   net
>Arrival-Date:   Fri Jan 18 15:16:00 PST 2002
>Closed-Date:
>Last-Modified:
>Originator:     pthomas@suse.de
>Release:        3.1 20020114
>Organization:
>Environment:
i486-suse-linux
>Description:
When compiling attached t.i (a further simplified version
of the amd74xx.i subitted for PR 5428) with 'gcc -c -march=i686 -O2', you get an ICE, this time at flow.c:526:

t.i: In function `ata66_amd74xx':
t.i:13: Internal compiler error in verify_wide_reg_1, at flow.c:526

Output of 'gcc -v' is:

Reading specs from /usr/lib/gcc-lib/i486-suse-linux/3.1/specs
Configured with: ../configure --enable-threads=posix --enable-long-long --prefix=/usr --with-local-prefix=/usr/local --infodir=/usr/share/info --mandir=/usr/share/man --enable-languages=c,c++,f77,objc,java,ada --with-gxx-include-dir=/usr/include/g++ --with-slibdir=/lib --with-system-zlib --enable-shared i486-suse-linux
Thread model: posix
gcc version 3.1 20020114 (experimental)
>How-To-Repeat:
Compile the attached t.i with

   gcc -c -march=i686 -O2 t.i
>Fix:

>Release-Note:
>Audit-Trail:
>Unformatted:
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Re: optimization/5429: gcc 3.1 20020114 fails with Internal compiler error in verify_wide_reg_1, at flow.c:526

[jakub]

Synopsis: gcc 3.1 20020114 fails with Internal compiler error in verify_wide_reg_1, at flow.c:526

State-Changed-From-To: open->closed
State-Changed-By: jakub
State-Changed-When: Wed Feb  6 11:42:20 2002
State-Changed-Why:
    Fixed by http://gcc.gnu.org/ml/gcc-patches/2002-01/msg02146.html

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=5429