[Bug target/56603] New: Different _MM_HINT_TX values from ICC

[Bug target/56603] New: Different _MM_HINT_TX values from ICC

[hjl.tools at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56603

             Bug #: 56603
           Summary: Different _MM_HINT_TX values from ICC
    Classification: Unclassified
           Product: gcc
           Version: 4.8.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: hjl.tools@gmail.com
                CC: ubizjak@gmail.com


GCC defines:

/* Constants for use with _mm_prefetch.  */
enum _mm_hint
{
  _MM_HINT_T0 = 3, 
  _MM_HINT_T1 = 2, 
  _MM_HINT_T2 = 1, 
  _MM_HINT_NTA = 0
};

However, ICC defines

_MM_HINT_T0 = 1
_MM_HINT_T1 = 2
_MM_HINT_T2 = 3
_MM_HINT_NTA = 0

It seems a typo in GCC.

[Bug target/56603] Different _MM_HINT_TX values from ICC

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=56603

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |INVALID
             Status|UNCONFIRMED                 |RESOLVED

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
The intrinsics guide:
https://www.intel.com/content/www/us/en/docs/intrinsics-guide/index.html#text=_mm_prefetch&ig_expand=5152,5153


_MM_HINT_T0 // 3, move data using the T0 hint. The PREFETCHT0 instruction will
be generated.
_MM_HINT_T1 // 2, move data using the T1 hint. The PREFETCHT1 instruction will
be generated.
_MM_HINT_T2 // 1, move data using the T2 hint. The PREFETCHT2 instruction will
be generated.

So GCC is correct here.