[Bug target/64512] New: ICE: in sched_analyze_reg, at sched-deps.c:2360 with -O2 -mmemcpy-strategy=vector_loop:-1:align -mno-push-args

["zsojka at seznam dot cz" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64512

            Bug ID: 64512
           Summary: ICE: in sched_analyze_reg, at sched-deps.c:2360 with
                    -O2 -mmemcpy-strategy=vector_loop:-1:align
                    -mno-push-args
           Product: gcc
           Version: 5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: zsojka at seznam dot cz

Created attachment 34388
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=34388&action=edit
reduced testcase

Compiler output:
$ gcc -O2 -mmemcpy-strategy=vector_loop:-1:align -mno-push-args testcase.c 
testcase.c: In function 'foo':
testcase.c:20:1: internal compiler error: in sched_analyze_reg, at
sched-deps.c:2360
 }
 ^
0x17210af sched_analyze_reg
        /mnt/svn/gcc-trunk/gcc/sched-deps.c:2360
0x1722513 sched_analyze_2
        /mnt/svn/gcc-trunk/gcc/sched-deps.c:2625
0x1722249 sched_analyze_2
        /mnt/svn/gcc-trunk/gcc/sched-deps.c:2731
0x17223c0 sched_analyze_2
        /mnt/svn/gcc-trunk/gcc/sched-deps.c:2843
0x1724600 sched_analyze_insn
        /mnt/svn/gcc-trunk/gcc/sched-deps.c:2993
0x1725f0b deps_analyze_insn(deps_desc*, rtx_insn*)
        /mnt/svn/gcc-trunk/gcc/sched-deps.c:3731
0x17268a9 sched_analyze(deps_desc*, rtx_insn*, rtx_insn*)
        /mnt/svn/gcc-trunk/gcc/sched-deps.c:3826
0xbf702e compute_block_dependences
        /mnt/svn/gcc-trunk/gcc/sched-rgn.c:2748
0xbf702e sched_rgn_compute_dependencies(int)
        /mnt/svn/gcc-trunk/gcc/sched-rgn.c:3272
0xbf9e20 schedule_region
        /mnt/svn/gcc-trunk/gcc/sched-rgn.c:3028
0xbf9e20 schedule_insns()
        /mnt/svn/gcc-trunk/gcc/sched-rgn.c:3431
0xbfa67d schedule_insns()
        /mnt/svn/gcc-trunk/gcc/sched-rgn.c:3416
0xbfa67d rest_of_handle_sched2
        /mnt/svn/gcc-trunk/gcc/sched-rgn.c:3655
0xbfa67d execute
        /mnt/svn/gcc-trunk/gcc/sched-rgn.c:3791
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <http://gcc.gnu.org/bugs.html> for instructions.

Tested revisions:
r219255 - ICE