https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65148
Martin Sebor <msebor at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |msebor at gcc dot gnu.org
--- Comment #2 from Martin Sebor <msebor at gcc dot gnu.org> ---
I can reproduce the ICE with 4.9.2 but not 5.0.
$ /build/gcc-4.9.2/gcc/xg++ -B/build/gcc-4.9.2/gcc -fsanitize=undefined -O2 -c
u.c
u.c: In function ‘void fn1()’:
u.c:7:1: internal compiler error: in get_biv_step, at loop-iv.c:823
}
^
0x1054dd13 get_biv_step
/src/gcc-4.9.2/gcc/loop-iv.c:823
0x1054dd13 iv_analyze_biv
/src/gcc-4.9.2/gcc/loop-iv.c:912
0x1054e06b iv_analyze_op
/src/gcc-4.9.2/gcc/loop-iv.c:1187
0x1054f303 iv_number_of_iterations
/src/gcc-4.9.2/gcc/loop-iv.c:2354
0x1054f303 check_simple_exit
/src/gcc-4.9.2/gcc/loop-iv.c:2920
0x1054f303 find_simple_exit(loop*, niter_desc*)
/src/gcc-4.9.2/gcc/loop-iv.c:2945
0x10550893 get_simple_loop_desc(loop*)
/src/gcc-4.9.2/gcc/loop-iv.c:3026
0x10bd13f3 doloop_optimize
/src/gcc-4.9.2/gcc/loop-doloop.c:616
0x10bd13f3 doloop_optimize_loops()
/src/gcc-4.9.2/gcc/loop-doloop.c:741
0x1054450f rtl_doloop
/src/gcc-4.9.2/gcc/loop-init.c:661
0x1054450f execute
/src/gcc-4.9.2/gcc/loop-init.c:692
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