egcs-ss-19980425 won't bootstrap on alpha-unknown-linux-gnu

[Alexandre Oliva <oliva at dcc dot unicamp dot br>]

Both haifa-enabled and haifa-disabled builds with BOOT_CFLAGS="-O4
-g" crash while building stage2:

./xgcc -B./  -DIN_GCC    -W -Wall -O4 -g -I./include  -I. -I/n/temp1/gcctest/bin/../src/egcs/gcc -I/n/temp1/gcctest/bin/../src/egcs/gcc/config \
-c /n/temp1/gcctest/bin/../src/egcs/gcc/objc/hash.c -o objc/hash.o
xgcc: Internal compiler error: program cc1 got fatal signal 11

haifa-disabled stack trace:

Program received signal SIGSEGV, Segmentation fault.
find_cross_jump (e1=0x1203e0138, e2=0x0, minimum=1, f1=0x11fffe908,
    f2=0x11fffe910) at /n/temp1/gcctest/bin/../src/egcs/gcc/jump.c:2556
2556          i2 = PREV_INSN (i2);
(gdb) where
#0  find_cross_jump (e1=0x1203e0138, e2=0x0, minimum=1, f1=0x11fffe908,
    f2=0x11fffe910) at /n/temp1/gcctest/bin/../src/egcs/gcc/jump.c:2556
#1  0x1200d0190 in jump_optimize (f=0x1203d8658, cross_jump=1,
    noop_moves=540934456, after_regscan=0)
    at /n/temp1/gcctest/bin/../src/egcs/gcc/jump.c:2141
#2  0x12003433c in rest_of_compilation (decl=0x12030eee8)
    at /n/temp1/gcctest/bin/../src/egcs/gcc/toplev.c:3533
#3  0x12001573c in finish_function (nested=0)
    at /n/temp1/gcctest/bin/../src/egcs/gcc/c-decl.c:7118
#4  0x1200020dc in yyparse () at c-parse.y:318
#5  0x12002f55c in compile_file (name=0x11ffff703 "hash.i")
    at /n/temp1/gcctest/bin/../src/egcs/gcc/toplev.c:2545
#6  0x120035bdc in main (argc=12, argv=0x11ffff440, envp=0x1)
    at /n/temp1/gcctest/bin/../src/egcs/gcc/toplev.c:4366
(gdb) p i2
$1 = (struct rtx_def *) 0x0

haifa-enabled stack trace:

Program received signal SIGSEGV, Segmentation fault.
find_cross_jump (e1=0x1203e7808, e2=0x0, minimum=1, f1=0x11fffe908, 
    f2=0x11fffe910) at /n/temp1/gcctest/bin/../src/egcs/gcc/jump.c:2556
2556          i2 = PREV_INSN (i2);
(gdb) where
#0  find_cross_jump (e1=0x1203e7808, e2=0x0, minimum=1, f1=0x11fffe908, 
    f2=0x11fffe910) at /n/temp1/gcctest/bin/../src/egcs/gcc/jump.c:2556
#1  0x1200d05e8 in jump_optimize (f=0x1203dfd28, cross_jump=1, 
    noop_moves=540964872, after_regscan=0)
    at /n/temp1/gcctest/bin/../src/egcs/gcc/jump.c:2141
#2  0x120034540 in rest_of_compilation (decl=0x1203165b8)
    at /n/temp1/gcctest/bin/../src/egcs/gcc/toplev.c:3533
#3  0x1200156fc in finish_function (nested=0)
    at /n/temp1/gcctest/bin/../src/egcs/gcc/c-decl.c:7118
#4  0x1200020d8 in yyparse () at c-parse.y:318
#5  0x12002f754 in compile_file (name=0x11ffff702 "hash.i")
    at /n/temp1/gcctest/bin/../src/egcs/gcc/toplev.c:2545
#6  0x120035ea4 in main (argc=12, argv=0x11ffff440, envp=0x1)
    at /n/temp1/gcctest/bin/../src/egcs/gcc/toplev.c:4366
(gdb) p i2
$1 = (struct rtx_def *) 0x0


This file can be successfully compiled with BOOT_CFLAGS="-O2 -g", but
objc/sarray.c will only compile with BOOT_CFLAGS="-O -g".

Hope this helps...

-- 
Alexandre Oliva
mailto:oliva@dcc.unicamp.br mailto:aoliva@acm.org
http://www.dcc.unicamp.br/~oliva
Universidade Estadual de Campinas, SP, Brasil