------- Comment #7 from spop at gcc dot gnu dot org 2009-03-02 19:05 ------- Subject: Re: ICE in GCC 4.4 with -O[123] -floop-interchange
On Mon, Mar 2, 2009 at 11:42, il dot basso dot buffo at gmail dot com <gcc-bugzi...@gcc.gnu.org> wrote: > > > ------- Comment #4 from il dot basso dot buffo at gmail dot com 2009-03-02 > 17:42 ------- > This reduction gives a different (but probably related) ICE: > > void crash_me(int num1, int num2, char * in, char * out) > { > int i, j; > for (j = 0; j < num1; j++) > for (i = 0; i < num2; i++) > *out++ = *in++; > } > > $gcc -O1 -floop-interchange -c crash_me.c > crash_me.c: In function 'crash_me': > crash_me.c:7: error: unrecognizable insn: > (insn 24 22 25 6 test.c:5 (set (reg:DI 70) > (reg:SI 62 [ D.1626 ])) -1 (nil)) > crash_me.c:7: internal compiler error: in extract_insn, at recog.c:2038 This is fixed as well by the patch that I sent out. I'm bootstrapping and testing it. Sebastian -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39335