[Bug middle-end/65517] [5 Regression] ICE: in get_loop_body, at cfgloop.c:856

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65517

--- Comment #2 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
Started with r221409.

trippels@gcc2-power8 ~ % ~/gcc_build_dir_/gcc/cc1 -fpreprocessed foo.i -quiet
-dumpbase foo.i -auxbase foo -O2 -w -version -o /dev/null
GNU C11 (GCC) version 5.0.0 20150313 (experimental)
(powerpc64le-unknown-linux-gnu)
        compiled by GNU C version 4.9.2 20141101 (Red Hat 4.9.2-1), GMP version
6.0.0, MPFR version 3.1.2, MPC version 1.0.2
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
GNU C11 (GCC) version 5.0.0 20150313 (experimental)
(powerpc64le-unknown-linux-gnu)
        compiled by GNU C version 4.9.2 20141101 (Red Hat 4.9.2-1), GMP version
6.0.0, MPFR version 3.1.2, MPC version 1.0.2
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
Compiler executable checksum: 2d7bc906d0f6d4e6259d8a0bcfb20c0d
foo.i: In function âmainâ:
foo.i:13:1: error: size of loop 1 should be 1, not 2
 }
 ^
foo.i:13:1: internal compiler error: in verify_loop_structure, at
cfgloop.c:1652
0x102e6a4f verify_loop_structure()
        ../../gcc/gcc/cfgloop.c:1652
0x1061f8e3 loop_optimizer_init(unsigned int)
        ../../gcc/gcc/loop-init.c:123
0x1094059f perform_tree_ssa_dce
        ../../gcc/gcc/tree-ssa-dce.c:1637
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