[Bug rtl-optimization/63987] New: [lra] internal compiler error: in decompose_normal_address, at rtlanal.c:5851

["hjl.tools at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63987

            Bug ID: 63987
           Summary: [lra] internal compiler error: in
                    decompose_normal_address, at rtlanal.c:5851
           Product: gcc
           Version: 5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: rtl-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: hjl.tools at gmail dot com
                CC: vmakarov at redhat dot com

Created attachment 34046
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=34046&action=edit
A testcase

On Linux/x86-64, r217823 gave

[hjl@gnu-tools-1 gcc]$ ./xg++ -B./ -S -O2 /tmp/t.ii -mx32
-maddress-mode=long/tmp/t.ii: In function 'void lower(vec<simplify*>&, bool)':
/tmp/t.ii:8236:2: internal compiler error: in decompose_normal_address, at
rtlanal.c:5851
  }
  ^
0xea04c7 decompose_normal_address
    /export/gnu/import/git/gcc/gcc/rtlanal.c:5851
0xea07b5 decompose_address(address_info*, rtx_def**, machine_mode, unsigned
char, rtx_code)
    /export/gnu/import/git/gcc/gcc/rtlanal.c:5928
0xea07e8 decompose_lea_address(address_info*, rtx_def**)
    /export/gnu/import/git/gcc/gcc/rtlanal.c:5938
0xd74f77 process_address_1
    /export/gnu/import/git/gcc/gcc/lra-constraints.c:2792
0xd75679 process_address
    /export/gnu/import/git/gcc/gcc/lra-constraints.c:3011
0xd76021 curr_insn_transform
    /export/gnu/import/git/gcc/gcc/lra-constraints.c:3306
0xd79039 lra_constraints(bool)
    /export/gnu/import/git/gcc/gcc/lra-constraints.c:4301
0xd65df2 lra(_IO_FILE*)
    /export/gnu/import/git/gcc/gcc/lra.c:2276
0xd1699b do_reload
    /export/gnu/import/git/gcc/gcc/ira.c:5391
0xd16d44 execute
    /export/gnu/import/git/gcc/gcc/ira.c:5561
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.
[hjl@gnu-tools-1 gcc]$