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1.1.2: "unrec. insn" ICE in gcc on alphaev6-unknown-linux
- To: egcs-bugs at egcs dot cygnus dot com
- Subject: 1.1.2: "unrec. insn" ICE in gcc on alphaev6-unknown-linux
- From: abel at bfr dot co dot il (Alexander L. Belikoff)
- Date: 05 Apr 1999 19:16:26 +0300
- Cc: egcs at egcs dot cygnus dot com
Just found this one. Gcc spits an ICE on the code attached on a dp264
Alpha running RedHat Linux 5.2 only when -O[23] -mcpu=21164 are
specified.
I. The machine
$ uname -a
Linux foobar 2.2.3-ac4 #1 SMP Wed Mar 24 11:26:44 EST 1999 alpha unknown
II. The compiler
$ gcc -v
Reading specs from /bb/abel2/egcs-bin-1.1.2/lib/gcc-lib/alphaev6-unknown-linux-gnu/egcs-2.91.66/specs
gcc version egcs-2.91.66 19990314 (egcs-1.1.2 release)
III. The bug
$ gcc -O2 -mcpu=21164 -c egcs_crash4.i
egcs_crash4.c: In function `foobar':
egcs_crash4.c:41: internal error--unrecognizable insn:
(insn 414 44 399 (set (reg:DI 0 $0)
(mem/s:DI (and:DI (plus:DI (reg:DI 30 $30)
(const_int 38994))
(const_int -8)))) -1 (insn_list 409 (insn_list 402 (insn_list 30 (insn_list:REG_DEP_ANTI 397 (insn_list:REG_DEP_ANTI 169 (nil))))))
(nil))
../../egcs-1.1.2/gcc/toplev.c:1367: Internal compiler error in function fatal_insn
IV. The source
egcs_crash4.i
Regards,
--
Alexander L. Belikoff
Bloomberg L.P. / BFM Financial Research Ltd.
abel@vallinor4.com, abel@bfr.co.il