[Bug target/64688] New: 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

            Bug ID: 64688
           Summary: internal compiler error: Max. number of generated
                    reload insns per insn is achieved (90)
           Product: gcc
           Version: 5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: trippels at gcc dot gnu.org
              Host: x86_64-unknown-linux-gnu
            Target: x86_64-unknown-linux-gnu
             Build: x86_64-unknown-linux-gnu

Running the Boost testsuite on gcc20 gives:

trippels@gcc20 more % cat performance.ii
template <typename T> struct A { typedef typename T::next type; };
template <typename> struct B;
template <typename T> struct N : T {};
template <int N> struct C {
  static const int value = N;
  typedef C<N + 1> next;
};
template <typename Sequence>
struct R : N<typename B<typename Sequence::tag>::template P<Sequence>> {};
template <typename Base> struct O : Base {
  typedef typename A<typename Base::size>::type size;
};
template <typename = int> struct D {
  typedef int tag;
  typedef C<0> size;
};
template <> struct B<int> {
  template <typename> struct P : O<O<O<D<>>>>::size {};
};
template <typename> struct F;
template <typename> struct G;
template <typename, typename, int> struct H;
template <typename Element, typename Layout> struct H<Element, Layout, 3> {};
template <int, typename E, typename L, int N> unsigned char at_c(H<E, L, N>) {}
template <typename> class I;
template <typename> class J;
template <typename> class K;
template <typename, typename> struct Q;
struct L {
  typedef Q<unsigned char, F<O<O<O<D<>>>>>> *type;
};
template <typename XIterator> struct M { typedef K<J<I<XIterator>>> view_t; };
template <typename, typename>
struct Q : H<unsigned, F<int>, R<O<O<O<D<>>>>>::value> {};
template <typename Iterator> struct G<I<Iterator>> { typedef Iterator type; };
template <typename> class J {
public:
  typedef G<I<Q<unsigned, int> *>>::type x_iterator;
};
template <typename> class K {
public:
  J<int>::x_iterator row_begin(int);
};
template <typename Op> void measure_time(Op p1) { p1(); }
template <typename, typename> struct fill_nongil_t;
template <typename T, typename P>
struct fill_nongil_t<K<J<I<Q<T, F<O<O<O<D<>>>>>> *>>>, P> {
  typedef K<J<I<Q<T, F<O<O<O<D<>>>>>> *>>> View;
  View _v;
  P _p;
  fill_nongil_t(View, P);
  void operator()() {
    T *first = (T *)_v.row_begin(0);
    T last;
    while (first != &last) {
      first[0] = first[1] = at_c<1>(_p);
      first[2] = at_c<2>(_p);
      first += 3;
    }
  }
};
template <typename, typename> void test_fill(int) {
  M<L::type>::view_t __trans_tmp_1;
  measure_time(fill_nongil_t<K<J<I<Q<unsigned char, F<O<O<O<D<>>>>>> *>>>,
                             Q<unsigned char, F<O<O<O<D<>>>>>>>(
      __trans_tmp_1, Q<unsigned char, F<O<O<O<D<>>>>>>()));
}
void performance_testtest_method() { test_fill<K<int>, Q<unsigned, int>>(0); }

trippels@gcc20 more % g++ -c -O3 -std=c++11 -march=westmere performance.ii
performance.ii: In function ‘void performance_testtest_method()’:
performance.ii:68:78: internal compiler error: Max. number of generated reload
insns per insn is achieved (90)

 void performance_testtest_method() { test_fill<K<int>, Q<unsigned, int>>(0); }
                                                                              ^
0xb8eb70 lra_constraints(bool)
        ../../gcc/gcc/lra-constraints.c:4335
0xb7b3a1 lra(_IO_FILE*)
        ../../gcc/gcc/lra.c:2292
0xb39809 do_reload
        ../../gcc/gcc/ira.c:5418
0xb39809 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 re
>From gcc-bugs-return-474042-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Jan 20 12:43:20 2015
Return-Path: <gcc-bugs-return-474042-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org>
Delivered-To: listarch-gcc-bugs@gcc.gnu.org
Received: (qmail 26047 invoked by alias); 20 Jan 2015 12:43:19 -0000
Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm
Precedence: bulk
List-Id: <gcc-bugs.gcc.gnu.org>
List-Archive: <http://gcc.gnu.org/ml/gcc-bugs/>
List-Post: <mailto:gcc-bugs@gcc.gnu.org>
List-Help: <mailto:gcc-bugs-help@gcc.gnu.org>
Sender: gcc-bugs-owner@gcc.gnu.org
Delivered-To: mailing list gcc-bugs@gcc.gnu.org
Received: (qmail 25989 invoked by uid 48); 20 Jan 2015 12:43:14 -0000
From: "jakub at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/64688] [5 Regression] internal compiler error: Max. number of generated reload insns per insn is achieved (90)
Date: Tue, 20 Jan 2015 12:43:00 -0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: changed
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: target
X-Bugzilla-Version: 5.0
X-Bugzilla-Keywords:
X-Bugzilla-Severity: normal
X-Bugzilla-Who: jakub at gcc dot gnu.org
X-Bugzilla-Status: NEW
X-Bugzilla-Priority: P1
X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org
X-Bugzilla-Target-Milestone: 5.0
X-Bugzilla-Flags:
X-Bugzilla-Changed-Fields: priority bug_status cf_reconfirmed_on cc target_milestone short_desc everconfirmed
Message-ID: <bug-64688-4-lAE5kHdCvd@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-64688-4@http.gcc.gnu.org/bugzilla/>
References: <bug-64688-4@http.gcc.gnu.org/bugzilla/>
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: 7bit
X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/
Auto-Submitted: auto-generated
MIME-Version: 1.0
X-SW-Source: 2015-01/txt/msg02036.txt.bz2
Content-length: 1045

https://gcc.gnu.org/bugzilla/show_bug.cgi?idd688

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Priority|P3                          |P1
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2015-01-20
                 CC|                            |jakub at gcc dot gnu.org,
                   |                            |vmakarov at gcc dot gnu.org
   Target Milestone|---                         |5.0
            Summary|internal compiler error:    |[5 Regression] internal
                   |Max. number of generated    |compiler error: Max. number
                   |reload insns per insn is    |of generated reload insns
                   |achieved (90)               |per insn is achieved (90)
     Ever confirmed|0                           |1

--- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Started with r210824.