[Bug target/60704] New: ICE: in extract_constrain_insn_cached, at recog.c:2156 with -flive-range-shrinkage -march=amdfam10

[Bug target/60704] New: ICE: in extract_constrain_insn_cached, at recog.c:2156 with -flive-range-shrinkage -march=amdfam10

[zsojka at seznam dot cz]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60704

            Bug ID: 60704
           Summary: ICE: in extract_constrain_insn_cached, at recog.c:2156
                    with -flive-range-shrinkage -march=amdfam10
           Product: gcc
           Version: 4.9.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: zsojka at seznam dot cz

Created attachment 32484
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=32484&action=edit
reduced testcase

Compiler output:
$ gcc -flive-range-shrinkage -march=amdfam10 testcase.c 
testcase.c: In function 'foo':
testcase.c:9:1: error: insn does not satisfy its constraints:
 }
 ^
(insn 8 7 9 2 (set (reg:DF 84 [ D.1800 ])
        (float:DF (reg:SI 83 [ D.1799 ]))) testcase.c:8 201 {*floatsidf2_sse}
     (expr_list:REG_DEAD (reg:SI 83 [ D.1799 ])
        (nil)))
testcase.c:9:1: internal compiler error: in extract_constrain_insn_cached, at
recog.c:2156
0xac1ad8 _fatal_insn(char const*, rtx_def const*, char const*, int, char
const*)
        /mnt/svn/gcc-trunk/gcc/rtl-error.c:109
0xac1b44 _fatal_insn_not_found(rtx_def const*, char const*, int, char const*)
        /mnt/svn/gcc-trunk/gcc/rtl-error.c:120
0xa7b70d extract_constrain_insn_cached(rtx_def*)
        /mnt/svn/gcc-trunk/gcc/recog.c:2156
0xfdc4b7 insn_default_latency_amdfam10(rtx_def*)
        /mnt/svn/gcc-trunk/gcc/config/i386/i386.md:23538
0x1348e57 insn_cost(rtx_def*)
        /mnt/svn/gcc-trunk/gcc/haifa-sched.c:1401
0x134f9b9 dep_cost_1(_dep*, unsigned int)
        /mnt/svn/gcc-trunk/gcc/haifa-sched.c:1454
0x135163b dep_cost
        /mnt/svn/gcc-trunk/gcc/haifa-sched.c:1508
0x135163b priority
        /mnt/svn/gcc-trunk/gcc/haifa-sched.c:1649
0x1351aba set_priorities(rtx_def*, rtx_def*)
        /mnt/svn/gcc-trunk/gcc/haifa-sched.c:6530
0xada77c compute_priorities()
        /mnt/svn/gcc-trunk/gcc/sched-rgn.c:2925
0xadd95f schedule_region
        /mnt/svn/gcc-trunk/gcc/sched-rgn.c:3018
0xadd95f schedule_insns
        /mnt/svn/gcc-trunk/gcc/sched-rgn.c:3416
0xade0eb schedule_insns
        /mnt/svn/gcc-trunk/gcc/sched-rgn.c:3401
0xade0eb rest_of_handle_live_range_shrinkage
        /mnt/svn/gcc-trunk/gcc/sched-rgn.c:3614
0xade0eb execute
        /mnt/svn/gcc-trunk/gcc/sched-rgn.c:3704
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.

$ gcc -v                                                
Using built-in specs.
COLLECT_GCC=/mnt/svn/gcc-trunk/binary-latest/bin/gcc
COLLECT_LTO_WRAPPER=/mnt/svn/gcc-trunk/binary-208888-lto-fortran-checking-yes-rtl-df/libexec/gcc/x86_64-unknown-linux-gnu/4.9.0/lto-wrapper
Target: x86_64-unknown-linux-gnu
Configured with: /mnt/svn/gcc-trunk//configure --enable-checking=yes,rtl,df
--enable-languages=c,c++,lto,fortran
--prefix=/mnt/svn/gcc-trunk/binary-208888-lto-fortran-checking-yes-rtl-df/
--without-cloog --without-ppl
Thread model: posix
gcc version 4.9.0 20140328 (experimental) (GCC)

[Bug target/60704] [4.9 Regression] ICE: in extract_constrain_insn_cached, at recog.c:2156 with -flive-range-shrinkage -march=amdfam10

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60704

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2014-03-29
                 CC|                            |jakub at gcc dot gnu.org,
                   |                            |rth at gcc dot gnu.org
   Target Milestone|---                         |4.9.0
            Summary|ICE: in                     |[4.9 Regression] ICE: in
                   |extract_constrain_insn_cach |extract_constrain_insn_cach
                   |ed, at recog.c:2156 with    |ed, at recog.c:2156 with
                   |-flive-range-shrinkage      |-flive-range-shrinkage
                   |-march=amdfam10             |-march=amdfam10
     Ever confirmed|0                           |1

--- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Started with r208587.

[Bug target/60704] [4.9 Regression] ICE: in extract_constrain_insn_cached, at recog.c:2156 with -flive-range-shrinkage -march=amdfam10

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60704

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Priority|P3                          |P1

[Bug target/60704] [4.9 Regression] ICE: in extract_constrain_insn_cached, at recog.c:2156 with -flive-range-shrinkage -march=amdfam10

[rth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60704

Richard Henderson <rth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED
           Assignee|unassigned at gcc dot gnu.org      |rth at gcc dot gnu.org

[Bug target/60704] [4.9 Regression] ICE: in extract_constrain_insn_cached, at recog.c:2156 with -flive-range-shrinkage -march=amdfam10

[rth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60704

--- Comment #2 from Richard Henderson <rth at gcc dot gnu.org> ---
Created attachment 32501
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=32501&action=edit
possible patch

This seems to work for the testcase.
Full testing still in progress.

[Bug target/60704] [4.9 Regression] ICE: in extract_constrain_insn_cached, at recog.c:2156 with -flive-range-shrinkage -march=amdfam10

[rth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60704

--- Comment #3 from Richard Henderson <rth at gcc dot gnu.org> ---
Author: rth
Date: Tue Apr  1 14:40:27 2014
New Revision: 208989

URL: http://gcc.gnu.org/viewcvs?rev=208989&root=gcc&view=rev
Log:
PR target/60704

        * config/i386/i386.md (*float<SWI48><MODEF>2_sse): Leave the second
        alternative enabled before register allocation.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/i386/i386.md

[Bug target/60704] [4.9 Regression] ICE: in extract_constrain_insn_cached, at recog.c:2156 with -flive-range-shrinkage -march=amdfam10

[law at redhat dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60704

Jeffrey A. Law <law at redhat dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
                 CC|                            |law at redhat dot com
         Resolution|---                         |FIXED

--- Comment #4 from Jeffrey A. Law <law at redhat dot com> ---
Fixed on trunk.

[Bug target/60704] [4.9 Regression] ICE: in extract_constrain_insn_cached, at recog.c:2156 with -flive-range-shrinkage -march=amdfam10

[rth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60704

--- Comment #5 from Richard Henderson <rth at gcc dot gnu.org> ---
Author: rth
Date: Tue Apr  1 16:39:18 2014
New Revision: 208990

URL: http://gcc.gnu.org/viewcvs?rev=208990&root=gcc&view=rev
Log:
PR target/60704

        * gcc.dg/pr60704.c: New file.

Added:
    trunk/gcc/testsuite/gcc.dg/pr60704.c
Modified:
    trunk/gcc/testsuite/ChangeLog

[Bug target/60704] [4.9 Regression] ICE: in extract_constrain_insn_cached, at recog.c:2156 with -flive-range-shrinkage -march=amdfam10

[ubizjak at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60704

Uroš Bizjak <ubizjak at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |REOPENED
             Blocks|                            |61360
         Resolution|FIXED                       |---

--- Comment #6 from Uroš Bizjak <ubizjak at gmail dot com> ---
This is not correct fix. The patch causes PR 61360.
>From gcc-bugs-return-461839-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Mon Sep 15 18:53:43 2014
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From: "zackw at panix dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/63271] New: Should commute arithmetic with vector load
Date: Mon, 15 Sep 2014 18:53:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?idc271

            Bug ID: 63271
           Summary: Should commute arithmetic with vector load
           Product: gcc
           Version: 4.9.1
            Status: UNCONFIRMED
          Keywords: missed-optimization
          Severity: normal
          Priority: P3
         Component: tree-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: zackw at panix dot com

Consider

    #include <emmintrin.h>

    __m128i foo(char C)
    {
      return _mm_set_epi8(   0,    C,  2*C,  3*C,
                           4*C,  5*C,  6*C,  7*C,
                           8*C,  9*C, 10*C, 11*C,
                          12*C, 13*C, 14*C, 15*C);
    }

    __m128i bar(char C)
    {
      __m128i v = _mm_set_epi8(0, 1, 2, 3, 4, 5, 6, 7,
                               8, 9,10,11,12,13,14,15);
      v *= C;
      return v;
    }

I *believe* these functions compute the same value, and should therefore
generate identical code, but with gcc 4.9 foo() generates considerably larger
and slower code.

The test case is expressed in terms of x86 <emmintrin.h> but I have no reason
to believe it isn't a generic missed optimization in the tree-level vectorizer.

[Bug target/60704] [4.9 Regression] ICE: in extract_constrain_insn_cached, at recog.c:2156 with -flive-range-shrinkage -march=amdfam10

[ubizjak at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60704

Uroš Bizjak <ubizjak at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Severity|normal                      |critical

--- Comment #7 from Uroš Bizjak <ubizjak at gmail dot com> ---
If LRA is able to fixup reg -> memory, as the comment above float patterns
claims, then constrain_operands should also recognize insn with memory-only
constraints, like:

(define_insn "*float<SWI48x:mode><MODEF:mode>2_i387"
  [(set (match_operand:MODEF 0 "register_operand" "=f")
    (float:MODEF (match_operand:SWI48x 1 "nonimmediate_operand" "m")))]

when register operand is passed as operand 1.

(I wonder why this pattern doesn't break in the same way as SSE version...)

Please note that these patterns are also present in 4.9 branch, and it looks to
me that the infrastructure is not fully prepared for the new LRA functionality.

It looks to me that we have critical issue here, so either the original patch
that introduced these patterns should be reverted, or infrastructure on release
branch should be fixed ASAP, before the new point release.
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Subject: [Bug fortran/56408] Fix dependency handling of testsuite/gfortran.dg
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https://gcc.gnu.org/bugzilla/show_bug.cgi?idV408

--- Comment #8 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Mon Sep 15 19:46:12 2014
New Revision: 215275

URL: https://gcc.gnu.org/viewcvs?rev!5275&root=gcc&view=rev
Log:
    PR fortran/56408
    * gfortran.dg/dg.exp (gfortran_test_path, gfortran_aux_module_flags):
    New global vars.
    (dg-compile-aux-modules): New procedure.
    * gfortran.dg/binding_label_tests_10.f03: Remove comment
    and keep-modules.
    * gfortran.dg/binding_label_tests_10_main.f03: Remove comment,
    use dg-compile-aux-modules.
    * gfortran.dg/binding_label_tests_11.f03: Remove comment
    and keep-modules.
    * gfortran.dg/binding_label_tests_11_main.f03: Remove comment,
    use dg-compile-aux-modules.
    * gfortran.dg/binding_label_tests_13.f03: Remove comment
    and keep-modules.
    * gfortran.dg/binding_label_tests_13_main.f03: Remove comment,
    use dg-compile-aux-modules.
    * gfortran.dg/binding_label_tests_26a.f90: Remove comment
    and keep-modules.
    * gfortran.dg/binding_label_tests_26b.f90: Remove comment,
    use dg-compile-aux-modules.
    * gfortran.dg/class_45a.f03: Remove keep-modules.
    * gfortran.dg/class_45b.f03: Use dg-compile-aux-modules
    and cleanup-modules.
    * gfortran.dg/class_4a.f03: Use dg-do link, use
    dg-additional-sources and cleanup-modules, remove keep-modules
    and update comment.
    * gfortran.dg/class_4b.f03: Don't compile anywhere, remove
    keep-modules, adjust comment.
    * gfortran.dg/class_4c.f03: Don't compile anywhere, remove
    dg-additional-sources and cleanup-modules.
    * gfortran.dg/coarray_29_1.f90: Remove keep-modules and
    associated comment.
    * gfortran.dg/coarray_29_2.f90: Use dg-compile-aux-modules,
    remove comment.
    * gfortran.dg/test_common_binding_labels_2.f03: Remove keep-modules.
    * gfortran.dg/test_common_binding_labels_2_main.f03: Remove comment,
    use dg-compile-aux-modules.
    * gfortran.dg/test_common_binding_labels_3.f03: Remove keep-modules.
    * gfortran.dg/test_common_binding_labels_3_main.f03: Remove comment,
    use dg-compile-aux-modules.
    * gfortran.dg/whole_file_28.f90: Remove comment and keep-modules.
    * gfortran.dg/whole_file_29.f90: Remove comment, use
    dg-compile-aux-modules.
    * gfortran.dg/whole_file_30.f90: Remove comment and keep-modules.
    * gfortran.dg/whole_file_31.f90: Remove comment, use
    dg-compile-aux-modules.

Modified:
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/gfortran.dg/binding_label_tests_10.f03
    trunk/gcc/testsuite/gfortran.dg/binding_label_tests_10_main.f03
    trunk/gcc/testsuite/gfortran.dg/binding_label_tests_11.f03
    trunk/gcc/testsuite/gfortran.dg/binding_label_tests_11_main.f03
    trunk/gcc/testsuite/gfortran.dg/binding_label_tests_13.f03
    trunk/gcc/testsuite/gfortran.dg/binding_label_tests_13_main.f03
    trunk/gcc/testsuite/gfortran.dg/binding_label_tests_26a.f90
    trunk/gcc/testsuite/gfortran.dg/binding_label_tests_26b.f90
    trunk/gcc/testsuite/gfortran.dg/class_45a.f03
    trunk/gcc/testsuite/gfortran.dg/class_45b.f03
    trunk/gcc/testsuite/gfortran.dg/class_4a.f03
    trunk/gcc/testsuite/gfortran.dg/class_4b.f03
    trunk/gcc/testsuite/gfortran.dg/class_4c.f03
    trunk/gcc/testsuite/gfortran.dg/coarray_29_1.f90
    trunk/gcc/testsuite/gfortran.dg/coarray_29_2.f90
    trunk/gcc/testsuite/gfortran.dg/dg.exp
    trunk/gcc/testsuite/gfortran.dg/test_common_binding_labels_2.f03
    trunk/gcc/testsuite/gfortran.dg/test_common_binding_labels_2_main.f03
    trunk/gcc/testsuite/gfortran.dg/test_common_binding_labels_3.f03
    trunk/gcc/testsuite/gfortran.dg/test_common_binding_labels_3_main.f03
    trunk/gcc/testsuite/gfortran.dg/whole_file_28.f90
    trunk/gcc/testsuite/gfortran.dg/whole_file_29.f90
    trunk/gcc/testsuite/gfortran.dg/whole_file_30.f90
    trunk/gcc/testsuite/gfortran.dg/whole_file_31.f90

[Bug target/60704] [4.9 Regression] ICE: in extract_constrain_insn_cached, at recog.c:2156 with -flive-range-shrinkage -march=amdfam10

[ubizjak at gmail dot com]

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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60704

Uroš Bizjak <ubizjak at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|REOPENED                    |RESOLVED
         Resolution|---                         |FIXED

--- Comment #8 from Uroš Bizjak <ubizjak at gmail dot com> ---
The introduced problems were fixed on mainline by r216557.
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Subject: [Bug target/61360] [5 Regression] ICE: in lra_update_insn_recog_data, at lra.c:1363 with -mtune½ver4
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61360

Uroš Bizjak <ubizjak at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |FIXED

--- Comment #17 from Uroš Bizjak <ubizjak at gmail dot com> ---
(In reply to Jakub Jelinek from comment #16)
> I see r216557 has been committed, isn't this resolved by that change?

Yes, fixed by r216557.
>From gcc-bugs-return-470786-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Mon Dec 15 18:51:45 2014
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Subject: [Bug libgcc/63832] [5.0 Regression] crtstuff.c:400:19: warning: array subscript is above array bounds [-Warray-bounds]
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63832

Uroš Bizjak <ubizjak at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |FIXED

--- Comment #7 from Uroš Bizjak <ubizjak at gmail dot com> ---
Fixed.
>From gcc-bugs-return-470787-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Mon Dec 15 18:54:34 2014
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Subject: [Bug target/62084] [avr] ICE: in convert_debug_memory_address
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https://gcc.gnu.org/bugzilla/show_bug.cgi?idb084

--- Comment #4 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Looking at this again, this might be a "debug" issue instead rather than
"target".