[Bug target/65222] New: [5 Regression] -mtune= or -march=: Not all options not documented: slm, knl, shanghai, istanbul

[Bug target/65222] New: [5 Regression] -mtune= or -march=: Not all options not documented: slm, knl, shanghai, istanbul

[burnus at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65222

            Bug ID: 65222
           Summary: [5 Regression] -mtune= or -march=: Not all options not
                    documented: slm, knl, shanghai, istanbul
           Product: gcc
           Version: 5.0
            Status: UNCONFIRMED
          Keywords: documentation
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: burnus at gcc dot gnu.org

At least the following options for -mtune= or -march= are not documented:

slm, knl, shanghai, istanbul

Marked as regression as "knl" is new since GCC 5. "slm" should be simple as it
is an alias of "silvermont" (new since GCC 4.9). "shanghai" and "istanbul" seem
to exist since GCC 4.8.

[Bug target/65222] [5 Regression] -mtune= or -march=: Not all options not documented: slm, knl, shanghai, istanbul

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65222

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Target|                            |x86_64-*-*, i?86-*-*
   Target Milestone|---                         |5.0

[Bug target/65222] [5 Regression] -mtune= or -march=: Not all options not documented: slm, knl, shanghai, istanbul

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65222

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |hjl.tools at gmail dot com,
                   |                            |jakub at gcc dot gnu.org

--- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
istanbul and shanghai don't seem to be valid -march=/-mtune= options.
My understanding was that
atom, core-avx2, core-avx-i, corei7, corei7-avx, slm
are deprecated aliases (thus intentionally not documented) of
bonell, haswell, ivybridge, nehalem, sandybridge, silvermont.
Beyond that, knl is indeed not documented (should be fixed) and x86-64 (dunno).

[Bug target/65222] [5 Regression] -mtune= or -march=: Not all options not documented: slm, knl, shanghai, istanbul

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65222

--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Wed Mar 18 13:47:47 2015
New Revision: 221489

URL: https://gcc.gnu.org/viewcvs?rev=221489&root=gcc&view=rev
Log:
    PR target/65222
    * doc/invoke.texi: Add knl as x86 -march=/-mtune= CPU type.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/doc/invoke.texi

[Bug target/65222] [5 Regression] -mtune= or -march=: Not all options not documented: slm, knl, shanghai, istanbul

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65222

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

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

--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
knl is now documented, slm (and various others) intentionally not documented,
shanghai and instanbul not even supported -march=/-mtune= options.