[Bug bootstrap/36919] New: [4.4 regression] Bootstrap failure on IRIX 6.5: unrecognizable insn in errors.c

["ro at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

As of 20080724, mainline fails to bootstrap on IRIX 6.5:

/vol/gccsrc/obj/gcc-4.4.0-20080724/6.5-gcc/./prev-gcc/xgcc
-B/vol/gccsrc/obj/gcc-4.4.0-20080724/6.5-gcc/./prev-gcc/
-B/vol/gcc/mips-sgi-irix6.5/bin/ -c  -g -O2 -DIN_GCC   -W -Wall -Wwrite-strings
-Wstrict-prototypes -Wmissing-prototypes -Wcast-qual -Wold-style-definition
-Wc++-compat -Wmissing-format-attribute -pedantic -Wno-long-long
-Wno-variadic-macros                                -Wno-overlength-strings
-Werror -fno-common  -DHAVE_CONFIG_H -DGENERATOR_FILE -I. -Ibuild
-I/vol/gcc/src/gcc-dist/gcc -I/vol/gcc/src/gcc-dist/gcc/build
-I/vol/gcc/src/gcc-dist/gcc/../include
-I/vol/gcc/src/gcc-dist/gcc/../libcpp/include -I/vol/gcc/include
-I/vol/gcc/include -I/vol/gcc/src/gcc-dist/gcc/../libdecnumber
-I/vol/gcc/src/gcc-dist/gcc/../libdecnumber/dpd -I../libdecnumber  -o
build/errors.o /vol/gcc/src/gcc-dist/gcc/errors.c
/vol/gcc/src/gcc-dist/gcc/errors.c: In function 'trim_filename':
/vol/gcc/src/gcc-dist/gcc/errors.c:124: error: unrecognizable insn:
(insn 154 139 49 /vol/gcc/src/gcc-dist/gcc/errors.c:116 (sequence [
            (jump_insn 43 139 45 /vol/gcc/src/gcc-dist/gcc/errors.c:116 (set
(pc
)
                    (if_then_else (ne (reg:SI 3 $3 [235])
                            (reg:SI 2 $2 [236]))
                        (label_ref:SI 90)
                        (pc))) 423 {*branch_equalitysi} (expr_list:REG_BR_PRED
(const_int 49 [0x31])
                    (expr_list:REG_DEAD (reg:SI 3 $3 [235])
                        (expr_list:REG_DEAD (reg:SI 2 $2 [236])
                            (expr_list:REG_EQUAL (if_then_else (ne (reg:SI 3 $3
[235])
                                        (const_int 47 [0x2f]))
                                    (label_ref:SI 90)
                                    (pc))
                                (expr_list:REG_BR_PROB (const_int 300 [0x12c])
                                    (nil)))))))
            (insn 45 43 49 (set (reg/v/f:SI 5 $5 [orig:231 p ] [231])
                    (reg/v/f:SI 4 $4 [orig:234 name ] [234])) 252
{*movsi_internal} (nil))
        ]) -1 (nil))
/vol/gcc/src/gcc-dist/gcc/errors.c:124: internal compiler error: in
num_delay_slots, at config/mips/mips.md:863

I've last bootstrapped successfully on 20080613.


-- 
           Summary: [4.4 regression] Bootstrap failure on IRIX 6.5:
                    unrecognizable insn in errors.c
           Product: gcc
           Version: 4.4.0
            Status: UNCONFIRMED
          Severity: major
          Priority: P3
         Component: bootstrap
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: ro at gcc dot gnu dot org
GCC target triplet: mips-sgi-irix6.5


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36919