bootstrap/6680: gcc-3.1 build fails with internal error on alphaev5-dec-osf5.0

[sabelka at iue dot tuwien dot ac dot at]

>Number:         6680
>Category:       bootstrap
>Synopsis:       gcc-3.1 build fails with internal error on alphaev5-dec-osf5.0
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Thu May 16 08:26:14 PDT 2002
>Closed-Date:
>Last-Modified:
>Originator:     sabelka@iue.tuwien.ac.at
>Release:        gcc-3.1
>Organization:
>Environment:
DEC Alpha EV5
Digital UNIX V5.0 (Rev. 910); Mon May 15 21:08:33 CEST 2000
>Description:
The stage2 compiler fails with an internal error when compiling the file predict.c

Here are the last few lines of the "make bootstrap" output:

stage2/xgcc -Bstage2/ -B/usr/local/alphaev5-dec-osf5.0/bin/ -c -DIN_GCC    -g -O2 -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -Wtraditional -pedantic -Wno-long-long  -DHAVE_CONFIG_H    -I. -I. -I../../gcc-3.1/gcc -I../../gcc-3.1/gcc/. -I../../gcc-3.1/gcc/config -I../../gcc-3.1/gcc/../include ../../gcc-3.1/gcc/optabs.c -o optabs.o
../../gcc-3.1/gcc/optabs.c: In function `expand_binop':
../../gcc-3.1/gcc/optabs.c:1221: warning: comparison between signed and unsigned
../../gcc-3.1/gcc/optabs.c:1223: warning: signed and unsigned type in conditional expression
../../gcc-3.1/gcc/optabs.c:1236: warning: comparison between signed and unsigned
../../gcc-3.1/gcc/optabs.c:1257: warning: comparison between signed and unsigned
stage2/xgcc -Bstage2/ -B/usr/local/alphaev5-dec-osf5.0/bin/ -c -DIN_GCC    -g -O2 -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -Wtraditional -pedantic -Wno-long-long  -DHAVE_CONFIG_H    -I. -I. -I../../gcc-3.1/gcc -I../../gcc-3.1/gcc/. -I../../gcc-3.1/gcc/config -I../../gcc-3.1/gcc/../include ../../gcc-3.1/gcc/params.c -o params.o
stage2/xgcc -Bstage2/ -B/usr/local/alphaev5-dec-osf5.0/bin/ -c -DIN_GCC    -g -O2 -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -Wtraditional -pedantic -Wno-long-long  -DHAVE_CONFIG_H    -I. -I. -I../../gcc-3.1/gcc -I../../gcc-3.1/gcc/. -I../../gcc-3.1/gcc/config -I../../gcc-3.1/gcc/../include ../../gcc-3.1/gcc/predict.c -o predict.o
../../gcc-3.1/gcc/predict.c: In function `propagate_freq':
../../gcc-3.1/gcc/predict.c:708: Internal compiler error in @
                                                             @, at F:537438864
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://www.gnu.org/software/gcc/bugs.html> for instructions.
gmake[2]: *** [predict.o] Error 1
gmake[2]: Leaving directory `/a61/tmp/tmp-saba/gcc-3.1-build-osf/gcc'
gmake[1]: *** [stage3_build] Error 2
gmake[1]: Leaving directory `/a61/tmp/tmp-saba/gcc-3.1-build-osf/gcc'
gmake: *** [bootstrap] Error 2


Maybe this internal error is caused by an optimization bug. I was able to bootstrap successfully without optimization (BOOT_CFLAGS=-g)!
>How-To-Repeat:
../gcc-3.2/configure
make bootstrap
>Fix:

>Release-Note:
>Audit-Trail:
>Unformatted: