[Bug sanitizer/59402] New: [4.9 Regression] bootstrap failure on x32

[Bug sanitizer/59402] New: [4.9 Regression] bootstrap failure on x32

[hjl.tools at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59402

            Bug ID: 59402
           Summary: [4.9 Regression] bootstrap failure on x32
           Product: gcc
           Version: 4.9.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: sanitizer
          Assignee: unassigned at gcc dot gnu.org
          Reporter: hjl.tools at gmail dot com
                CC: dodji at gcc dot gnu.org, dvyukov at gcc dot gnu.org,
                    jakub at gcc dot gnu.org, kcc at gcc dot gnu.org

r205700 breaks bootstrap for x32:

http://gcc.gnu.org/ml/gcc-regression/2013-12/msg00118.html

2 patches are posted at

http://gcc.gnu.org/ml/gcc-patches/2013-12/msg00525.html

as well as

http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20131202/197727.html

[Bug sanitizer/59402] [4.9 Regression] bootstrap failure on x32

[hjl.tools at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59402

H.J. Lu <hjl.tools at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Priority|P3                          |P2
   Target Milestone|---                         |4.9.0

[Bug sanitizer/59402] [4.9 Regression] bootstrap failure on x32

[kcc at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59402

Kostya Serebryany <kcc at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Assignee|unassigned at gcc dot gnu.org      |kcc at gcc dot gnu.org

--- Comment #1 from Kostya Serebryany <kcc at gcc dot gnu.org> ---
Thanks for the report, H.J. I'll try to respond properly on Monday (-ish). 
Long term, everyone would benefit if you could setup a public build bot
upstream.

[Bug sanitizer/59402] [4.9 Regression] bootstrap failure on x32

[kcc at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59402

--- Comment #3 from Kostya Serebryany <kcc at gcc dot gnu.org> ---
(In reply to H.J. Lu from comment #2)
> (In reply to Kostya Serebryany from comment #1)
> > Thanks for the report, H.J. I'll try to respond properly on Monday (-ish).
> 
> Can I check my patches into trunk to unblock x32 build and revert them
> after we find a better fix?

You may, assuming other targets will not break.
But I will not be able to do another merge until the two versions 
(upstream and GCC) are equivalent again. 
So, please don't close this bug until it's done.


> 
> > Long term, everyone would benefit if you could setup a public build bot
> > upstream.
> 
> Can you find a machine with Ubuntu 13.04 or newer?

No, sorry.

[Bug sanitizer/59402] [4.9 Regression] bootstrap failure on x32

[hjl.tools at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59402

--- Comment #4 from H.J. Lu <hjl.tools at gmail dot com> ---
(In reply to Kostya Serebryany from comment #3)
> (In reply to H.J. Lu from comment #2)
> > (In reply to Kostya Serebryany from comment #1)
> > > Thanks for the report, H.J. I'll try to respond properly on Monday (-ish).
> > 
> > Can I check my patches into trunk to unblock x32 build and revert them
> > after we find a better fix?
> 
> You may, assuming other targets will not break.

I will check in my patches. Since my patch is guarded with

#if defined(__x86_64__)

and

#if defined(__x86_64__) && !defined(_LP64)

they shouldn't break other targets.

> But I will not be able to do another merge until the two versions 
> (upstream and GCC) are equivalent again. 

You can revert my patches before merging or apply my
patches to llvm first.  In any case, please don't break
x32 before the merge.  You can send me a patch before
doing the merge.  I can test it on x32.

> So, please don't close this bug until it's done.
> 
> 
> > 
> > > Long term, everyone would benefit if you could setup a public build bot
> > > upstream.
> > 
> > Can you find a machine with Ubuntu 13.04 or newer?

You can try virtual machine.  You only need to build GCC
with C and C++ without bootstrap. Stage 1 build is sufficient.
It shouldn't take more than a hour on a fast host.  Thanks.

[Bug sanitizer/59402] [4.9 Regression] bootstrap failure on x32

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59402

--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Hasn't this been fixed by r205736 and r205737 ?

[Bug sanitizer/59402] [4.9 Regression] bootstrap failure on x32

[hjl.tools at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59402

--- Comment #6 from H.J. Lu <hjl.tools at gmail dot com> ---
(In reply to Jakub Jelinek from comment #5)
> Hasn't this been fixed by r205736 and r205737 ?

Yes, but I was told to leave it open until it is fixed in upstream:

http://gcc.gnu.org/ml/gcc-patches/2013-12/msg00641.html

[Bug sanitizer/59402] bootstrap failure on x32

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59402

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|[4.9 Regression] bootstrap  |bootstrap failure on x32
                   |failure on x32              |

--- Comment #7 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
But it isn't a 4.9 Regression anymore.

[Bug sanitizer/59402] bootstrap failure on x32

[kcc at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59402

--- Comment #8 from Kostya Serebryany <kcc at gcc dot gnu.org> ---
H.J., may I ask you to repost the patches
(that apply to the current upstream trunk) to llvm-commits?

[Bug sanitizer/59402] bootstrap failure on x32

[hjl.tools at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59402

--- Comment #9 from H.J. Lu <hjl.tools at gmail dot com> ---
(In reply to Kostya Serebryany from comment #8)
> H.J., may I ask you to repost the patches
> (that apply to the current upstream trunk) to llvm-commits?

Done.

[Bug sanitizer/59402] bootstrap failure on x32

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59402

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|4.9.0                       |4.9.1

--- Comment #10 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 4.9.0 has been released

[Bug sanitizer/59402] bootstrap failure on x32

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=59402

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|4.9.1                       |4.9.2

--- Comment #11 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 4.9.1 has been released.

[Bug sanitizer/59402] bootstrap failure on x32

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=59402

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|4.9.2                       |4.9.3

--- Comment #12 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 4.9.2 has been released.

[Bug sanitizer/59402] bootstrap failure on x32

[hjl.tools at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=59402

H.J. Lu <hjl.tools at gmail dot com> changed:

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

--- Comment #13 from H.J. Lu <hjl.tools at gmail dot com> ---
Upstream compiler-rt has been fixed a while ago.