http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59952
Uroš Bizjak changed:
What|Removed |Added
Target||x86
Status|ASSIGNED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59952
--- Comment #23 from uros at gcc dot gnu.org ---
Author: uros
Date: Thu May 8 19:32:34 2014
New Revision: 210237
URL: http://gcc.gnu.org/viewcvs?rev=210237&root=gcc&view=rev
Log:
PR target/59952
* config/i386/i386.c (ix86_option_override_
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59952
--- Comment #22 from uros at gcc dot gnu.org ---
Author: uros
Date: Thu May 8 19:23:45 2014
New Revision: 210236
URL: http://gcc.gnu.org/viewcvs?rev=210236&root=gcc&view=rev
Log:
PR target/59952
* config/i386/i386.c (PTA_HASWELL): Remove
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59952
--- Comment #21 from uros at gcc dot gnu.org ---
Author: uros
Date: Thu May 8 19:13:10 2014
New Revision: 210234
URL: http://gcc.gnu.org/viewcvs?rev=210234&root=gcc&view=rev
Log:
PR target/59952
* config/i386/i386.c (PTA_HASWELL): Remove
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59952
--- Comment #20 from Uroš Bizjak ---
(In reply to Thiago Macieira from comment #19)
> The prefix can be emitted for any CPU, you don't need a flag for that.
> However, you cannot emit the XTEST instruction unless the CPU has HLE or RTM.
Please re
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59952
--- Comment #19 from Thiago Macieira ---
The prefix can be emitted for any CPU, you don't need a flag for that. However,
you cannot emit the XTEST instruction unless the CPU has HLE or RTM.
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59952
--- Comment #18 from Uroš Bizjak ---
(In reply to Jakub Jelinek from comment #17)
> I'm not sure about that, after all we enable PTA_HLE even for generic.
> The point is whether it might be beneficial to emit the HLE prefixes or not,
> on CPUs tha
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59952
--- Comment #17 from Jakub Jelinek ---
I'm not sure about that, after all we enable PTA_HLE even for generic.
The point is whether it might be beneficial to emit the HLE prefixes or not, on
CPUs that never have HLE obviously it doesn't make sense,
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59952
--- Comment #16 from Uroš Bizjak ---
(In reply to Thiago Macieira from comment #15)
> (In reply to H.J. Lu from comment #14)
> > I think HLE is the part of TSX.
>
> It is and should be removed from the list.
OK.
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59952
--- Comment #15 from Thiago Macieira ---
(In reply to H.J. Lu from comment #14)
> I think HLE is the part of TSX.
It is and should be removed from the list.
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59952
--- Comment #14 from H.J. Lu ---
(In reply to Uroš Bizjak from comment #13)
> Patch:
>
> --cut here--
> Index: config/i386/i386.c
> ===
> --- config/i386/i386.c (revision 210219)
>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59952
Uroš Bizjak changed:
What|Removed |Added
Status|NEW |ASSIGNED
Assignee|unassigned at g
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59952
--- Comment #12 from Thiago Macieira ---
GCC 4.9.0 got released with -march=haswell still enabling RTM and HLE, even
though there are Haswell parts without TSX.
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59952
--- Comment #11 from Yukhin Kirill ---
(In reply to Yukhin Kirill from comment #9)
> (In reply to Jakub Jelinek from comment #6)
> > Prerelease samples shouldn't count, people using those just can avoid using
> > -march=haswell and use -march=ivyb
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59952
--- Comment #10 from Thiago Macieira ---
(In reply to Yukhin Kirill from comment #9)
> I am checking and will get back to. I though all AVX2 parts had BMI1/2
The evidence seems to support that. I did check with a few colleagues and we
couldn't co
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59952
--- Comment #9 from Yukhin Kirill ---
(In reply to Jakub Jelinek from comment #6)
> Prerelease samples shouldn't count, people using those just can avoid using
> -march=haswell and use -march=ivybridge -mavx2 or similar instead. Can
> anyone from
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59952
--- Comment #8 from Thiago Macieira ---
(In reply to Thiago Macieira from comment #7)
> (In reply to Jakub Jelinek from comment #6)
> > Prerelease samples shouldn't count, people using those just can avoid using
> > -march=haswell and use -march=i
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59952
--- Comment #7 from Thiago Macieira ---
(In reply to Jakub Jelinek from comment #6)
> Prerelease samples shouldn't count, people using those just can avoid using
> -march=haswell and use -march=ivybridge -mavx2 or similar instead. Can
> anyone fr
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59952
--- Comment #6 from Jakub Jelinek ---
Prerelease samples shouldn't count, people using those just can avoid using
-march=haswell and use -march=ivybridge -mavx2 or similar instead. Can anyone
from Intel verify if all released Haswell CPUs have BM
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59952
--- Comment #5 from Mikael Pettersson ---
(In reply to Thiago Macieira from comment #4)
> (In reply to Mikael Pettersson from comment #3)
> > There are also Haswells that lack BMI2. I updated our dynamic binary
> > instrumentation engine for AVX2
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59952
--- Comment #4 from Thiago Macieira ---
(In reply to Mikael Pettersson from comment #3)
> There are also Haswells that lack BMI2. I updated our dynamic binary
> instrumentation engine for AVX2 about a year ago, but while our Haswell box
> at the
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59952
--- Comment #3 from Mikael Pettersson ---
There are also Haswells that lack BMI2. I updated our dynamic binary
instrumentation engine for AVX2 about a year ago, but while our Haswell box at
the time had AVX2 it didn't have BMI2 etc, causing Intel
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59952
--- Comment #2 from Thiago Macieira ---
The Ks and the Rs don't have it. The plain 4770 as well as 4770S do have it. I
guess we were too eager with TSX when the announcement came out 2 years ago: it
sounded like all Haswell would have it.
I don't
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59952
Jakub Jelinek changed:
What|Removed |Added
Status|UNCONFIRMED |NEW
Last reconfirmed|
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