public inbox for gcc-bugs@sourceware.org
help / color / mirror / Atom feed
* [Bug go/94607] New: ice in execute_todo, at passes.c:2034
@ 2020-04-15 13:14 dcb314 at hotmail dot com
  2020-04-15 13:16 ` [Bug go/94607] " rguenth at gcc dot gnu.org
                   ` (4 more replies)
  0 siblings, 5 replies; 6+ messages in thread
From: dcb314 at hotmail dot com @ 2020-04-15 13:14 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94607

            Bug ID: 94607
           Summary: ice in execute_todo, at passes.c:2034
           Product: gcc
           Version: 10.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: go
          Assignee: ian at airs dot com
          Reporter: dcb314 at hotmail dot com
                CC: cmang at google dot com
  Target Milestone: ---

A trunk version of gccgo does this

$ /home/dcb/gcc/results.20200415B/bin/gccgo -O3 -march=native
./go.go-torture/execute/array-2.go
during GIMPLE pass: aprefetch
./go.go-torture/execute/array-2.go: In function ‘main.fn’:
./go.go-torture/execute/array-2.go:3:1: internal compiler error: in
execute_todo, at passes.c:2034
    3 | func fn(a []int) int {
      | ^
0x7142f9 execute_todo
        ../../trunk.git/gcc/passes.c:2034


Native is AMD FX-8350, a Piledriver architecture.

^ permalink raw reply	[flat|nested] 6+ messages in thread

* [Bug go/94607] ice in execute_todo, at passes.c:2034
  2020-04-15 13:14 [Bug go/94607] New: ice in execute_todo, at passes.c:2034 dcb314 at hotmail dot com
@ 2020-04-15 13:16 ` rguenth at gcc dot gnu.org
  2020-04-15 13:21 ` dcb314 at hotmail dot com
                   ` (3 subsequent siblings)
  4 siblings, 0 replies; 6+ messages in thread
From: rguenth at gcc dot gnu.org @ 2020-04-15 13:16 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94607

--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
Possibly just -fprefetch-loop-arrays is required then (not really maintained,
not really used)

^ permalink raw reply	[flat|nested] 6+ messages in thread

* [Bug go/94607] ice in execute_todo, at passes.c:2034
  2020-04-15 13:14 [Bug go/94607] New: ice in execute_todo, at passes.c:2034 dcb314 at hotmail dot com
  2020-04-15 13:16 ` [Bug go/94607] " rguenth at gcc dot gnu.org
@ 2020-04-15 13:21 ` dcb314 at hotmail dot com
  2020-04-15 13:54 ` jakub at gcc dot gnu.org
                   ` (2 subsequent siblings)
  4 siblings, 0 replies; 6+ messages in thread
From: dcb314 at hotmail dot com @ 2020-04-15 13:21 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94607

--- Comment #2 from David Binderman <dcb314 at hotmail dot com> ---

Only -O2 -fprefetch-loop-arrays is needed to trigger the bug.

^ permalink raw reply	[flat|nested] 6+ messages in thread

* [Bug go/94607] ice in execute_todo, at passes.c:2034
  2020-04-15 13:14 [Bug go/94607] New: ice in execute_todo, at passes.c:2034 dcb314 at hotmail dot com
  2020-04-15 13:16 ` [Bug go/94607] " rguenth at gcc dot gnu.org
  2020-04-15 13:21 ` dcb314 at hotmail dot com
@ 2020-04-15 13:54 ` jakub at gcc dot gnu.org
  2020-04-15 20:01 ` cvs-commit at gcc dot gnu.org
  2020-04-15 20:19 ` ian at airs dot com
  4 siblings, 0 replies; 6+ messages in thread
From: jakub at gcc dot gnu.org @ 2020-04-15 13:54 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94607

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |jakub at gcc dot gnu.org

--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
2020-04-15  Jakub Jelinek  <jakub@redhat.com>

        PR go/94607
        * go-gcc.cc (Gcc_backend::Gcc_backend): Set DECL_IS_NOVOPS on
        BUILT_IN_PREFETCH decl.

--- gcc/go/go-gcc.cc.jj 2020-01-12 11:54:36.630410135 +0100
+++ gcc/go/go-gcc.cc    2020-04-15 15:52:15.243624553 +0200
@@ -804,6 +804,7 @@ Gcc_backend::Gcc_backend()
                                                        const_ptr_type_node,
                                                        NULL_TREE),
                       false, false);
+  DECL_IS_NOVOPS(builtin_decl_explicit(BUILT_IN_PREFETCH)) = 1;

   // The compiler uses __builtin_unreachable for cases that cannot
   // occur.

fixes this.

^ permalink raw reply	[flat|nested] 6+ messages in thread

* [Bug go/94607] ice in execute_todo, at passes.c:2034
  2020-04-15 13:14 [Bug go/94607] New: ice in execute_todo, at passes.c:2034 dcb314 at hotmail dot com
                   ` (2 preceding siblings ...)
  2020-04-15 13:54 ` jakub at gcc dot gnu.org
@ 2020-04-15 20:01 ` cvs-commit at gcc dot gnu.org
  2020-04-15 20:19 ` ian at airs dot com
  4 siblings, 0 replies; 6+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2020-04-15 20:01 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94607

--- Comment #4 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Ian Lance Taylor <ian@gcc.gnu.org>:

https://gcc.gnu.org/g:eef00439e6723e089e74cd374474e0eac0a9f513

commit r10-7741-geef00439e6723e089e74cd374474e0eac0a9f513
Author: Ian Lance Taylor <iant@golang.org>
Date:   Wed Apr 15 12:59:52 2020 -0700

    Go Gcc_backend class: mark prefetch as novops

            PR go/94607
            * go-gcc.cc (class Gcc_backend): Define builtin_const,
            builtin_noreturn, builtin_novops.
            (Gcc_backend::define_builtin): Change const_p and noreturn_p
            parameters to a single flags parameter.  Change all callers.
            (Gcc_backend::Gcc_backend): Pass novops for prefetch.

^ permalink raw reply	[flat|nested] 6+ messages in thread

* [Bug go/94607] ice in execute_todo, at passes.c:2034
  2020-04-15 13:14 [Bug go/94607] New: ice in execute_todo, at passes.c:2034 dcb314 at hotmail dot com
                   ` (3 preceding siblings ...)
  2020-04-15 20:01 ` cvs-commit at gcc dot gnu.org
@ 2020-04-15 20:19 ` ian at airs dot com
  4 siblings, 0 replies; 6+ messages in thread
From: ian at airs dot com @ 2020-04-15 20:19 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94607

Ian Lance Taylor <ian at airs dot com> changed:

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

--- Comment #5 from Ian Lance Taylor <ian at airs dot com> ---
Thanks.  Fixed.

^ permalink raw reply	[flat|nested] 6+ messages in thread

end of thread, other threads:[~2020-04-15 20:19 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-04-15 13:14 [Bug go/94607] New: ice in execute_todo, at passes.c:2034 dcb314 at hotmail dot com
2020-04-15 13:16 ` [Bug go/94607] " rguenth at gcc dot gnu.org
2020-04-15 13:21 ` dcb314 at hotmail dot com
2020-04-15 13:54 ` jakub at gcc dot gnu.org
2020-04-15 20:01 ` cvs-commit at gcc dot gnu.org
2020-04-15 20:19 ` ian at airs dot com

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).