[Bug bootstrap/12898] New: Tru64 UNIX bootstrap failure: ICE in gen_reg_rtx, at emit-rtl.c:819

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12898

           Summary: Tru64 UNIX bootstrap failure: ICE in gen_reg_rtx, at
                    emit-rtl.c:819
           Product: gcc
           Version: 3.4
            Status: UNCONFIRMED
          Severity: critical
          Priority: P2
         Component: bootstrap
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: ro at techfak dot uni-bielefeld dot de
                CC: gcc-bugs at gcc dot gnu dot org
 GCC build triplet: alpha-dec-osf5.1b
  GCC host triplet: alpha-dec-osf5.1b
GCC target triplet: alpha-dec-osf5.1b

Bootstrap on Tru64 UNIX V5.1B (as well as V4.0F) fails, both with GCC 3.3.2
and Compaq C as bootstrap compiler:

$ stage1/xgcc -Bstage1/ -B/vol/gcc/share/alpha-dec-osf5.1b/bin/ -c   -g -O2 -DIN_GCC   -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -pedantic -Wno-long-long -Wold-style-definition -Werror -fno-common   -DHAVE_CONFIG_H    -I. -I. -I/vol/gnu/src/gcc/gcc/gcc -I/vol/gnu/src/gcc/gcc/gcc/. -I/vol/gnu/src/gcc/gcc/gcc/../include  /vol/gnu/src/gcc/gcc/gcc/mips-tdump.c -o mips-tdump.o -v -save-temps
Reading specs from stage1/specs
Configured with: /vol/gnu/src/gcc/gcc/configure --prefix=/vol/gcc --with-local-prefix=/vol/gcc --disable-nls alpha-dec-osf5.1b
Thread model: posix
gcc version 3.4 20031103 (experimental)
 stage1/cc1 -E -quiet -v -I. -I. -I/vol/gnu/src/gcc/gcc/gcc -I/vol/gnu/src/gcc/gcc/gcc/. -I/vol/gnu/src/gcc/gcc/gcc/../include -iprefix /amnt/figaro/volumes/obj-gcc/gcc/obj.alpha/gcc-3.4-20031103/5.1b-gcc/gcc/stage1/../lib/gcc/alpha-dec-osf5.1b/3.4/ -isystem include -isystem stage1/include -isystem /vol/gcc/share/alpha-dec-osf5.1b/bin/include -DIN_GCC -DHAVE_CONFIG_H /vol/gnu/src/gcc/gcc/gcc/mips-tdump.c -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -pedantic -Wno-long-long -Wold-style-definition -Werror -fno-common -fworking-directory -O2 -o mips-tdump.i
ignoring nonexistent directory "stage1/include"
ignoring nonexistent directory "/vol/gcc/share/alpha-dec-osf5.1b/bin/include"
ignoring nonexistent directory "/amnt/figaro/volumes/obj-gcc/gcc/obj.alpha/gcc-3.4-20031103/5.1b-gcc/gcc/stage1/../lib/gcc/alpha-dec-osf5.1b/3.4/include"
ignoring nonexistent directory "/vol/gcc/lib/gcc/alpha-dec-osf5.1b/3.4/include"
ignoring nonexistent directory "/vol/gcc/share/alpha-dec-osf5.1b/include"
ignoring duplicate directory "."
ignoring duplicate directory "/vol/gnu/src/gcc/gcc/gcc/."
#include "..." search starts here:
#include <...> search starts here:
 .
 /vol/gnu/src/gcc/gcc/gcc
 /vol/gnu/src/gcc/gcc/gcc/../include
 include
 /vol/gcc/include
 /usr/include
End of search list.
 stage1/cc1 -fpreprocessed mips-tdump.i -quiet -dumpbase mips-tdump.c -auxbase-strip mips-tdump.o -g -O2 -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -pedantic -Wno-long-long -Wold-style-definition -Werror -version -fno-common -o mips-tdump.s
GNU C version 3.4 20031103 (experimental) (alpha-dec-osf5.1b)
	compiled by GNU C version 3.3.2.
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
/vol/gnu/src/gcc/gcc/gcc/mips-tdump.c: In function `main':

/vol/gnu/src/gcc/gcc/gcc/mips-tdump.c:1538: internal compiler error: in gen_reg_rtx, at emit-rtl.c:819
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.

Environment:
System: OSF1 bartok V5.1 2650 alpha
Machine: alpha
	
host: alpha-dec-osf5.1b
build: alpha-dec-osf5.1b
target: alpha-dec-osf5.1b
configured with: /vol/gnu/src/gcc/gcc/configure --prefix=/vol/gcc --with-local-prefix=/vol/gcc --disable-nls alpha-dec-osf5.1b

How-To-Repeat:
Bootstrap GCC as above.
------- Additional Comments From ro at techfak dot uni-bielefeld dot de  2003-11-04 19:20 -------
Fix:
Works ok at -O (instead of -O2).