[Bug target/64688] [5 Regression] internal compiler error: Max. number of generated reload insns per insn is achieved (90)

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64688

--- Comment #11 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
Created attachment 34566
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=34566&action=edit
reduced testcase

trippels@gcc20 % g++ -c -O3 -std=c++11 -march=westmere performance.ii
performance.ii: In function ‘void performance_testtest_method()’:
performance.ii:133:1: internal compiler error: Max. number of generated reload
insns per insn is achieved (90)

 }
 ^
0xb6e6e0 lra_constraints(bool)
        ../../gcc/gcc/lra-constraints.c:4335
0xb5b041 lra(_IO_FILE*)
        ../../gcc/gcc/lra.c:2292
0xb18da9 do_reload
        ../../gcc/gcc/ira.c:5418
0xb18da9 execute
        ../../gcc/gcc/ira.c:5589
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.
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From: "burnus at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug fortran/64771] ICE(segfault) when passing coarrays around; ICE in gfc_zero_size_array in arith.c:1637
Date: Sat, 24 Jan 2015 14:47:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?idd771

Tobias Burnus <burnus at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|ice-on-invalid-code         |ice-on-valid-code
                 CC|                            |fanfarillo.gcc at gmail dot com,
                   |                            |tkoenig at gcc dot gnu.org
            Summary|ICE on invalid around       |ICE(segfault) when passing
                   |check_dummy_characteristics |coarrays around; ICE in
                   |/ gfc_zero_size_array       |gfc_zero_size_array in
                   |                            |arith.c:1637

--- Comment #1 from Tobias Burnus <burnus at gcc dot gnu.org> ---
Fails here the same way, and should be the same reason:
https://gcc.gnu.org/ml/fortran/2015-01/msg00145.html - besides, the test case
is shorter and valid:

      program cg
      implicit none
      integer            reduce_recv_starts(2)[0:*]
      interface
      subroutine conj_grad (reduce_recv_starts)
      integer   reduce_recv_starts(2)[0:*]
      end subroutine
      end interface
         call conj_grad (reduce_recv_starts)
      end
      subroutine conj_grad (reduce_recv_starts)
      implicit none
      integer   reduce_recv_starts(2)[0:*]
      end                       ! end of routine conj_grad