[Bug bootstrap/111664] New: [14 regression] error in gcc/opt-read.awk after r14-4354-ge4a4b8e983bac8

[Bug bootstrap/111664] New: [14 regression] error in gcc/opt-read.awk after r14-4354-ge4a4b8e983bac8

[seurer at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111664

            Bug ID: 111664
           Summary: [14 regression] error in gcc/opt-read.awk after
                    r14-4354-ge4a4b8e983bac8
           Product: gcc
           Version: 14.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: bootstrap
          Assignee: unassigned at gcc dot gnu.org
          Reporter: seurer at gcc dot gnu.org
  Target Milestone: ---

g:e4a4b8e983bac865eb435b11798e38d633b98942, r14-4354-ge4a4b8e983bac8

I am seeing this just on our big ending machines.

mawk -f /home/seurer/gcc/git/gcc-trunk/gcc/opt-functions.awk -f
/home/seurer/gcc/git/gcc-trunk/gcc/opt-read.awk \
       -f /home/seurer/gcc/git/gcc-trunk/gcc/opth-gen.awk \
       < optionlist > tmp-options.h
mawk: /home/seurer/gcc/git/gcc-trunk/gcc/opt-read.awk: line 134: syntax error
at or near [
mawk: /home/seurer/gcc/git/gcc-trunk/gcc/opth-gen.awk: line 415: syntax error
at or near [
mawk: /home/seurer/gcc/git/gcc-trunk/gcc/opth-gen.awk: line 417: syntax error
at or near [
mawk: /home/seurer/gcc/git/gcc-trunk/gcc/opth-gen.awk: line 440: syntax error
at or near [

commit e4a4b8e983bac865eb435b11798e38d633b98942
Author: Feng Wang <wangfeng@eswincomputing.com>
Date:   Tue Sep 12 09:18:05 2023 +0000

    RISC-V:Optimize the MASK opt generation

[Bug bootstrap/111664] [14 regression] error in gcc/opt-read.awk after r14-4354-ge4a4b8e983bac8

[sjames at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111664

Sam James <sjames at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |kito at gcc dot gnu.org,
                   |                            |sjames at gcc dot gnu.org

--- Comment #1 from Sam James <sjames at gcc dot gnu.org> ---
It's a gawk vs mawk issue, see
https://inbox.sourceware.org/gcc-patches/20231002080244.105205-1-kito.cheng@sifive.com/T/#u
for a patch.

[Bug bootstrap/111664] [14 regression] Fails to build with mawk (error in gcc/opt-read.awk) after r14-4354-ge4a4b8e983bac8

[seurer at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111664

--- Comment #2 from seurer at gcc dot gnu.org ---
I installed gawk on the machine where it failed and the build works now.  So
definitely mawk.

[Bug bootstrap/111664] [14 regression] Fails to build with mawk (error in gcc/opt-read.awk) after r14-4354-ge4a4b8e983bac8

[kito at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111664

Kito Cheng <kito at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
     Ever confirmed|0                           |1
             Status|UNCONFIRMED                 |ASSIGNED
   Last reconfirmed|                            |2023-10-03

--- Comment #3 from Kito Cheng <kito at gcc dot gnu.org> ---
Proposed fix, and verified with mawk on my machine :)

https://gcc.gnu.org/pipermail/gcc-patches/2023-October/631785.html

[Bug bootstrap/111664] [14 regression] Fails to build with mawk (error in gcc/opt-read.awk) after r14-4354-ge4a4b8e983bac8

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111664

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |14.0

[Bug bootstrap/111664] [14 regression] Fails to build with mawk (error in gcc/opt-read.awk) after r14-4354-ge4a4b8e983bac8

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111664

--- Comment #4 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Kito Cheng <kito@gcc.gnu.org>:

https://gcc.gnu.org/g:027a94cf32be0b53d163e252e3c9e4800ad8f5f4

commit r14-4395-g027a94cf32be0b53d163e252e3c9e4800ad8f5f4
Author: Kito Cheng <kito.cheng@sifive.com>
Date:   Mon Oct 2 10:50:42 2023 +0800

    options: Prevent multidimensional arrays [PR111664]

    Multidimensional arrary is gawk extension, and we accidentally
    introduced that in recent commit[1].

    [1]
https://gcc.gnu.org/git/?p=gcc.git;a=commit;h=e4a4b8e983bac865eb435b11798e38d633b98942

    gcc/ChangeLog:

            PR bootstrap/111664
            * opt-read.awk: Drop multidimensional arrays.
            * opth-gen.awk: Ditto.

[Bug bootstrap/111664] [14 regression] Fails to build with mawk (error in gcc/opt-read.awk) after r14-4354-ge4a4b8e983bac8

[dcb314 at hotmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111664

David Binderman <dcb314 at hotmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |dcb314 at hotmail dot com

--- Comment #5 from David Binderman <dcb314 at hotmail dot com> ---
I saw this also on a raspberry pi that uses mawk.

I think there is still some value in testing patches
in a couple of very different places to help increase 
portability of code.

After the correcting patch, all appears to be in order on the pi.

[Bug bootstrap/111664] [14 regression] Fails to build with mawk (error in gcc/opt-read.awk) after r14-4354-ge4a4b8e983bac8

[law at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111664

Jeffrey A. Law <law at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
                 CC|                            |law at gcc dot gnu.org
         Resolution|---                         |FIXED

--- Comment #6 from Jeffrey A. Law <law at gcc dot gnu.org> ---
Fixed on the trunk.