[Bug driver/42520] New: lto1 does not see -march and -mtune options

[Bug driver/42520] New: lto1 does not see -march and -mtune options

[d dot g dot gorbachev at gmail dot com]

For example, `gcc -march=pentium -flto -fuse-linker-plugin main.c' causes this:

/usr/local/libexec/gcc/i686-pc-linux-gnu/4.5.0/lto1 -quiet -dumpbase cc0AFVJ9
-mtune=generic -march=pentium4 -auxbase-strip /tmp/cc7X43Dc.lto.o
-fuse-linker-plugin -fresolution @/tmp/ccoGGiIc -o /tmp/ccCcL0Ff.s

"-mtune=generic -march=pentium4" appears because GCC (4.5.0 20091224) was
configured with "--with-arch=pentium4 --with-tune=generic" options.


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           Summary: lto1 does not see -march and -mtune options
           Product: gcc
           Version: 4.5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: driver
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: d dot g dot gorbachev at gmail dot com
 GCC build triplet: i686-pc-linux-gnu
  GCC host triplet: i686-pc-linux-gnu
GCC target triplet: i686-pc-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42520

[Bug driver/42520] lto1 does not see -march and -mtune options

[rguenth at gcc dot gnu dot org]

------- Comment #1 from rguenth at gcc dot gnu dot org  2009-12-31 15:14 -------
It works with GCC built w/o --with-arch/--with-tune.

Can you paste the complete output of -v?


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42520

[Bug driver/42520] lto1 does not see -march and -mtune options

[d dot g dot gorbachev at gmail dot com]

------- Comment #2 from d dot g dot gorbachev at gmail dot com  2010-01-01 16:51 -------
Created an attachment (id=19436)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=19436&action=view)
Output of -v

Does not work for me without --with-arch / --with-tune.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42520

[Bug driver/42520] lto1 does not see -march and -mtune options

[rguenth at gcc dot gnu dot org]

------- Comment #3 from rguenth at gcc dot gnu dot org  2010-01-01 17:16 -------
It looks like the linker plugin doesn't get the -march command line flag
passed.  It works for me without -fuse-linker-plugin.


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rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |espindola at gcc dot gnu dot
                   |                            |org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42520

[Bug driver/42520] lto1 does not see -march and -mtune options

[d dot g dot gorbachev at gmail dot com]

------- Comment #4 from d dot g dot gorbachev at gmail dot com  2010-01-01 17:52 -------
`-fuse-linker-plugin' is crucial to reproduce this bug.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42520

[Bug driver/42520] lto1 does not see -march and -mtune options

[steven at gcc dot gnu dot org]

------- Comment #5 from steven at gcc dot gnu dot org  2010-01-01 20:25 -------
IMHO this ought to be fixed before gcc 4.5 is released. Diego, agree?


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steven at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
OtherBugsDependingO|                            |41588
              nThis|                            |
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|0                           |1
   Last reconfirmed|0000-00-00 00:00:00         |2010-01-01 20:25:49
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42520

[Bug driver/42520] lto1 does not see -march and -mtune options with -fuse-linker-plugin

[rguenth at gcc dot gnu dot org]

------- Comment #6 from rguenth at gcc dot gnu dot org  2010-01-03 22:29 -------
*** Bug 42598 has been marked as a duplicate of this bug. ***


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rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |hjl dot tools at gmail dot
                   |                            |com


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42520

[Bug driver/42520] lto1 does not see -march and -mtune options with -fuse-linker-plugin

[hjl at gcc dot gnu dot org]

------- Comment #7 from hjl at gcc dot gnu dot org  2010-01-04 00:53 -------
Subject: Bug 42520

Author: hjl
Date: Mon Jan  4 00:52:50 2010
New Revision: 155601

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=155601
Log:
Pass -m* and -v to -plugin-opt

gcc/

2010-01-03  H.J. Lu  <hongjiu.lu@intel.com>

        PR lto/42520
        * gcc.c (LINK_COMMAND_SPEC): Pass -m* and -v to -plugin-opt.

lto-plugin/

2010-01-03  H.J. Lu  <hongjiu.lu@intel.com>

        PR lto/42520
        * lto-plugin.c (exec_lto_wrapper): Output lto-wrapper command
        if -v is passed.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/gcc.c
    trunk/lto-plugin/ChangeLog
    trunk/lto-plugin/lto-plugin.c


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42520

[Bug driver/42520] lto1 does not see -march and -mtune options with -fuse-linker-plugin

[hjl dot tools at gmail dot com]

------- Comment #8 from hjl dot tools at gmail dot com  2010-01-04 04:28 -------
Fixed.


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hjl dot tools at gmail dot com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |FIXED
   Target Milestone|---                         |4.5.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42520