------- Comment #1 from pinskia at gcc dot gnu dot org 2006-02-03 03:48 ------- Here is the backtrace: #0 0x00664238 in df_find_use (df=0x41a06a70, insn=0x4281c4b0, reg=0x428a9780) at /Users/pinskia/src/gcc/local/gcc/gcc/df-core.c:1030 #1 0x004a0418 in iv_analyze (insn=0x4281c4b0, val=0x428a9780, iv=0xbffff310) at /Users/pinskia/src/gcc/local/gcc/gcc/loop-iv.c:1149 #2 0x004a2b5c in iv_number_of_iterations (loop=0x41a065c0, insn=0x4281c4b0, condition=0x428b9588, desc=0xbffff500) at /Users/pinskia/src/gcc/local/gcc/gcc/loop-iv.c:2034 #3 0x004a43d4 in check_simple_exit (loop=0x41a065c0, e=0x4281c320, desc=0xbffff500) at /Users/pinskia/src/gcc/local/gcc/gcc/loop-iv.c:2582 #4 0x004a44d0 in find_simple_exit (loop=0x41a065c0, desc=0x41a071f0) at /Users/pinskia/src/gcc/local/gcc/gcc/loop-iv.c:2607 #5 0x004a4898 in get_simple_loop_desc (loop=0x41a065c0) at /Users/pinskia/src/gcc/local/gcc/gcc/loop-iv.c:2685 #6 0x006a86ec in doloop_optimize (loop=0x41a065c0) at /Users/pinskia/src/gcc/local/gcc/gcc/loop-doloop.c:462 #7 0x006a8d00 in doloop_optimize_loops (loops=0x41a05f70) at /Users/pinskia/src/gcc/local/gcc/gcc/loop-doloop.c:583 #8 0x005ea630 in rtl_doloop () at /Users/pinskia/src/gcc/local/gcc/gcc/loop-init.c:357
-- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26087
