[Bug bootstrap/61388] New: [4.8.3 Regression] linux/microblaze fails to build: undefined machine-specific constraint at this point: "Q"

[Bug bootstrap/61388] New: [4.8.3 Regression] linux/microblaze fails to build: undefined machine-specific constraint at this point: "Q"

[rose.garcia-eggl2fk at yopmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61388

            Bug ID: 61388
           Summary: [4.8.3 Regression] linux/microblaze fails to build:
                    undefined machine-specific constraint at this point:
                    "Q"
           Product: gcc
           Version: 4.8.3
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: bootstrap
          Assignee: unassigned at gcc dot gnu.org
          Reporter: rose.garcia-eggl2fk at yopmail dot com

build/genopinit ../../gcc/config/microblaze/microblaze.md \
  insn-conditions.md -htmp-opinit.h -ctmp-opinit.c
echo timestamp > s-attr-common
build/genextract ../../gcc/config/microblaze/microblaze.md \
  insn-conditions.md > tmp-extract.c
/bin/bash ../../gcc/../move-if-change tmp-emit.c insn-emit.c
echo timestamp > s-config
build/genoutput ../../gcc/config/microblaze/microblaze.md \
  insn-conditions.md > tmp-output.c
echo timestamp > s-codes
build/genpeep ../../gcc/config/microblaze/microblaze.md \
  insn-conditions.md > tmp-peep.c
build/genrecog ../../gcc/config/microblaze/microblaze.md \
  insn-conditions.md > tmp-recog.c
../../gcc/config/microblaze/microblaze.md:2164: warning: operand 1 missing
mode?
../../gcc/config/microblaze/microblaze.md:516: '@' is redundant for output
template with single alternative
../../gcc/config/microblaze/microblaze.md:1123: error: undefined
machine-specific constraint at this point: "Q"
../../gcc/config/microblaze/microblaze.md:1123: note:  in operand 0
../../gcc/config/microblaze/microblaze.md:1123: error: undefined
machine-specific constraint at this point: "Q,r"
../../gcc/config/microblaze/microblaze.md:1123: note:  in operand 1

works with 4.8.2

this commit seems to have broken it
http://repo.or.cz/w/official-gcc.git/commitdiff/a421c18ad013091c30f053e45e217e7d80213e90

[Bug bootstrap/61388] [4.8.3 Regression] linux/microblaze fails to build: undefined machine-specific constraint at this point: "Q"

[rose.garcia-eggl2fk at yopmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61388

--- Comment #1 from Rose Garcia <rose.garcia-eggl2fk at yopmail dot com> ---
tried adding the author of the faulty/incomplete patch that caused the
regression: nagaraju.mekala@xilinx.com to the CC list but i'm apparently not
allowed to.
could someone with op powers please do so ?

[Bug bootstrap/61388] [4.8 Regression] linux/microblaze fails to build: undefined machine-specific constraint at this point: "Q"

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61388

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Target|                            |microblaze
                 CC|                            |eager at eagercon dot com
      Known to work|                            |4.8.2
   Target Milestone|---                         |4.8.4
            Summary|[4.8.3 Regression]          |[4.8 Regression]
                   |linux/microblaze fails to   |linux/microblaze fails to
                   |build: undefined            |build: undefined
                   |machine-specific constraint |machine-specific constraint
                   |at this point: "Q"          |at this point: "Q"
      Known to fail|                            |4.8.3

--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
Odd, I can't find any @xilinx.com people in MAINTAINERS.  (you can't CC people
without bugzilla account)

CCing the microblaze maintainer instead.

[Bug bootstrap/61388] [4.8 Regression] linux/microblaze fails to build: undefined machine-specific constraint at this point: "Q"

[eager at eagercon dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61388

--- Comment #3 from Michael Eager <eager at eagercon dot com> ---
What sources are you building?  

When I build --target=microblaze-xilinx-elf from the current sources, I see the
same warning message for microblaze.md that you list.  I do not see the other
errors.  Constraint "Q" is defined in constraints.md.

[Bug bootstrap/61388] [4.8 Regression] linux/microblaze fails to build: undefined machine-specific constraint at this point: "Q"

[nmekala at xilinx dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61388

Nagaraju Mekala <nmekala at xilinx dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |nmekala at xilinx dot com

--- Comment #4 from Nagaraju Mekala <nmekala at xilinx dot com> ---
I have checked it with 4.9.0 and it is working fine for me.
As indicated by Mike constraint "Q" is already defined in constraint.md file.

Can you please share the GCC version and the configuration option that you are
using to build.

[Bug bootstrap/61388] [4.8 Regression] linux/microblaze fails to build: undefined machine-specific constraint at this point: "Q"

[rose.garcia-eggl2fk at yopmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61388

--- Comment #6 from Rose Garcia <rose.garcia-eggl2fk at yopmail dot com> ---
(In reply to Nagaraju Mekala from comment #4)
> I have checked it with 4.9.0 and it is working fine for me.

we're not talking gcc 4.9.0 here. this is about gcc 4.8.3 release. please test
that version.

[Bug bootstrap/61388] [4.8 Regression] linux/microblaze fails to build: undefined machine-specific constraint at this point: "Q"

[rose.garcia-eggl2fk at yopmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61388

--- Comment #7 from Rose Garcia <rose.garcia-eggl2fk at yopmail dot com> ---
(In reply to Rose Garcia from comment #5)
> (In reply to Michael Eager from comment #3)
> > What sources are you building?  
> 
> GCC 4.8.3 release tarball, as already mentioned.
> 

actually i didnt mention it, but i entered it on VERSION fields in the bug
report, and it's also noted in KNOWN TO WORK and KNOWN TO FAIL builds, so i
assumed ppl would read that.

[Bug bootstrap/61388] [4.8 Regression] linux/microblaze fails to build: undefined machine-specific constraint at this point: "Q"

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61388

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

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

--- Comment #9 from Richard Biener <rguenth at gcc dot gnu.org> ---
Assuming fixed then.