Re: Can't build gcc cvs trunk 20050409 gnat tools on sparc-linux:tree check: accessed operand 2 of view_convert_expr with 1 operands invisit_assignment, at tree-ssa-ccp.c:1074

[Laurent GUERBY <laurent at guerby dot net>]

On Sun, 2005-04-10 at 01:13 +0200, Andreas Schwab wrote:
> Laurent GUERBY <laurent@guerby.net> writes:
> 
> > Should I replace ",1" by ",0" or is something more ambitious needed?
> 
> I tried that on ia64, and the result was a miscompiled stage2 compiler.

Same thing on x86, I killed stage3 gnat1 after 20 minutes of CPU time:

stage2/xgcc -Bstage2/ -B/home/guerby/work/gcc/install/install-20050410T103121/i686-pc-linux-gnu/bin/ -c -O2 -g -fomit-frame-pointer      -gnatpg -gnata -I--I. -Iada -I/home/guerby/work/gcc/version-head/gcc/ada /home/guerby/work/gcc/version-head/gcc/ada/ada.ads -o ada/ada.o
xgcc: Internal error: Killed (program gnat1)
Please submit a full bug report.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.
make[2]: *** [ada/ada.o] Error 1

gdb attach showed gnat1 stuck in elaboration code on some array
initialization.

Laurent

guerby@m:~> gdb -p 31958
GNU gdb 6.2.1
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This GDB was configured as "i586-suse-linux".
Attaching to process 31958
Reading symbols from /home/guerby/work/gcc/build/build-20050410T103121/gcc/stage2/gnat1...done.
Using host libthread_db library "/lib/tls/libthread_db.so.1".
Reading symbols from /lib/tls/libc.so.6...done.
Loaded symbols for /lib/tls/libc.so.6
Reading symbols from /lib/ld-linux.so.2...done.
Loaded symbols for /lib/ld-linux.so.2
0x080bbb8c in csets._elabb () at /home/guerby/work/gcc/version-head/gcc/ada/csets.adb:627
627        Fold_IBM_PC_437 : constant Translate_Table := Translate_Table'(
(gdb) l
622
623        --  Note: Code page 437 is the typical default in DOS, Windows and OS/2
624        --  for PC's in the US, it corresponds to the original PC character set.
625        --  See also the definitions for code page 850.
626
627        Fold_IBM_PC_437 : constant Translate_Table := Translate_Table'(
628
629           'a' => 'A',
630           'b' => 'B',
631           'c' => 'C',
Current language:  auto; currently minimal
(gdb) bt
#0  0x080bbb8c in csets._elabb () at /home/guerby/work/gcc/version-head/gcc/ada/csets.adb:627
#1  0x0804aa25 in adainit () at b_gnat1.c:327
#2  0x08064be0 in gnat_parse_file (set_yydebug=0) at /home/guerby/work/gcc/version-head/gcc/ada/misc.c:240
#3  0x085ca2c5 in toplev_main (argc=128, argv=0xbfffea44) at /home/guerby/work/gcc/version-head/gcc/toplev.c:1000
#4  0x40046b10 in __libc_start_main () from /lib/tls/libc.so.6
#5  0x08049ee1 in _start () at start.S:119
(gdb) q
The program is running.  Quit anyway (and detach it)? (y or n) y
Detaching from program: /home/guerby/work/gcc/build/build-20050410T103121/gcc/stage2/gnat1, process 31958