[Bug testsuite/37074] New: gcc.dg/torture/stackalign/builtin-apply-4.c failed with SSE2

[Bug testsuite/37074] New: gcc.dg/torture/stackalign/builtin-apply-4.c failed with SSE2

[hjl dot tools at gmail dot com]

gcc.dg/torture/stackalign/builtin-apply-4.c failed with SSE2. The
problem is MMX enabled with SSE2, but builtin-apply-4.c mixes mmx
and x87 instructions without emms in between.


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           Summary: gcc.dg/torture/stackalign/builtin-apply-4.c failed with
                    SSE2
           Product: gcc
           Version: 4.4.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: testsuite
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: hjl dot tools at gmail dot com


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37074

[Bug testsuite/37074] gcc.dg/torture/stackalign/builtin-apply-4.c failed with SSE2

[hjl dot tools at gmail dot com]

------- Comment #1 from hjl dot tools at gmail dot com  2008-08-10 20:23 -------
A patch is posted at

http://gcc.gnu.org/ml/gcc-patches/2008-08/msg00664.html


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hjl dot tools at gmail dot com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                URL|                            |http://gcc.gnu.org/ml/gcc-
                   |                            |patches/2008-
                   |                            |08/msg00664.html


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37074

[Bug testsuite/37074] gcc.dg/torture/stackalign/builtin-apply-4.c failed with SSE2

[hjl dot tools at gmail dot com]

------- Comment #2 from hjl dot tools at gmail dot com  2009-09-18 03:26 -------
*** Bug 41392 has been marked as a duplicate of this bug. ***


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hjl dot tools at gmail dot com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |ppluzhnikov at google dot
                   |                            |com


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37074

[Bug testsuite/37074] gcc.dg/torture/stackalign/builtin-apply-4.c failed with SSE2

[hjl dot tools at gmail dot com]

------- Comment #3 from hjl dot tools at gmail dot com  2010-02-26 14:05 -------
gcc.dg/torture/stackalign/builtin-apply-4.c will
fail on x86-64 since -march=x86_64 will be added
by default since:

http://gcc.gnu.org/ml/gcc-cvs/2010-02/msg00664.html


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37074

[Bug testsuite/37074] gcc.dg/torture/stackalign/builtin-apply-4.c failed with SSE2

[ubizjak at gmail dot com]

------- Comment #4 from ubizjak at gmail dot com  2010-02-26 14:24 -------
(In reply to comment #3)

MMX arguments are passed via %mm registers when __builtin_apply_args is used.
Touching %mm in any way will switch FP regstack to MMX mode, and since no emms
is emitted, reading %st will always return NaN.

[There were proposals to obsolete __bultin_apply, so who cares.]

Your patch from comment #1 is OK.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37074

[Bug testsuite/37074] gcc.dg/torture/stackalign/builtin-apply-4.c failed with SSE2

[hjl at gcc dot gnu dot org]

------- Comment #5 from hjl at gcc dot gnu dot org  2010-02-26 14:49 -------
Subject: Bug 37074

Author: hjl
Date: Fri Feb 26 14:49:02 2010
New Revision: 157089

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=157089
Log:
Add -mno-mmx to x86 in gcc.dg/torture/stackalign/stackalign.exp.

2010-02-26  H.J. Lu  <hongjiu.lu@intel.com>

        PR testsuite/37074:
        * gcc.dg/torture/stackalign/stackalign.exp: Add -mno-mmx to x86.

Modified:
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/gcc.dg/torture/stackalign/stackalign.exp


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37074

[Bug testsuite/37074] gcc.dg/torture/stackalign/builtin-apply-4.c failed with SSE2

[hjl dot tools at gmail dot com]

------- Comment #6 from hjl dot tools at gmail dot com  2010-02-26 14:49 -------
Fixed in 4.5.0.


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hjl dot tools at gmail dot com changed:

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37074

[Bug testsuite/37074] gcc.dg/torture/stackalign/builtin-apply-4.c failed with SSE2

[hjl at gcc dot gnu dot org]

------- Comment #7 from hjl at gcc dot gnu dot org  2010-08-14 02:29 -------
Subject: Bug 37074

Author: hjl
Date: Sat Aug 14 02:28:57 2010
New Revision: 163239

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=163239
Log:
Support --with-fpmath=sse for x86.

gcc/

2010-08-13  H.J. Lu  <hongjiu.lu@intel.com>

        Backport from mainline
        2010-02-26  H.J. Lu  <hongjiu.lu@intel.com>

        * config.gcc: Support --with-fpmath=sse for x86.

        * config/i386/ssemath.h: New.

        * doc/install.texi (--with-fpmath=sse): Documented.

gcc/testsuite/

2010-08-13  H.J. Lu  <hongjiu.lu@intel.com>

        Backport from mainline
        2010-02-26  H.J. Lu  <hongjiu.lu@intel.com>

        PR testsuite/37074:
        * gcc.dg/torture/stackalign/stackalign.exp: Add -mno-mmx to x86.

Added:
    branches/ix86/gcc-4_4-branch/gcc/config/i386/ssemath.h
Modified:
    branches/ix86/gcc-4_4-branch/gcc/ChangeLog.ix86
    branches/ix86/gcc-4_4-branch/gcc/config.gcc
    branches/ix86/gcc-4_4-branch/gcc/doc/install.texi
    branches/ix86/gcc-4_4-branch/gcc/testsuite/ChangeLog.ix86
   
branches/ix86/gcc-4_4-branch/gcc/testsuite/gcc.dg/torture/stackalign/stackalign.exp


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37074