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* [Bug libgcc/105920] New: __builtin_cpu_supports ("f16c") should check AVX
@ 2022-06-10 15:04 hjl.tools at gmail dot com
  2022-06-10 17:54 ` [Bug libgcc/105920] " hjl.tools at gmail dot com
  2022-06-14 13:52 ` [Bug target/105920] " hjl.tools at gmail dot com
  0 siblings, 2 replies; 3+ messages in thread
From: hjl.tools at gmail dot com @ 2022-06-10 15:04 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105920

            Bug ID: 105920
           Summary: __builtin_cpu_supports ("f16c") should check AVX
           Product: gcc
           Version: 11.3.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: libgcc
          Assignee: unassigned at gcc dot gnu.org
          Reporter: hjl.tools at gmail dot com
  Target Milestone: ---

libgcc has

  if (ecx & bit_F16C)
    set_feature (FEATURE_F16C);
  if (ecx & bit_RDRND)
    set_feature (FEATURE_RDRND);
  if (ecx & bit_XSAVE)
    set_feature (FEATURE_XSAVE);
  if (avx_usable)
    {    
      if (ecx & bit_AVX)
        set_feature (FEATURE_AVX);
      if (ecx & bit_FMA)
        set_feature (FEATURE_FMA);
    }    

F16C should be enabled only if AVX is usable since F16C requires AVX.

^ permalink raw reply	[flat|nested] 3+ messages in thread

* [Bug libgcc/105920] __builtin_cpu_supports ("f16c") should check AVX
  2022-06-10 15:04 [Bug libgcc/105920] New: __builtin_cpu_supports ("f16c") should check AVX hjl.tools at gmail dot com
@ 2022-06-10 17:54 ` hjl.tools at gmail dot com
  2022-06-14 13:52 ` [Bug target/105920] " hjl.tools at gmail dot com
  1 sibling, 0 replies; 3+ messages in thread
From: hjl.tools at gmail dot com @ 2022-06-10 17:54 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105920

H.J. Lu <hjl.tools at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Last reconfirmed|                            |2022-06-10
     Ever confirmed|0                           |1
             Status|UNCONFIRMED                 |NEW

--- Comment #1 from H.J. Lu <hjl.tools at gmail dot com> ---
VAES has the same issue.

^ permalink raw reply	[flat|nested] 3+ messages in thread

* [Bug target/105920] __builtin_cpu_supports ("f16c") should check AVX
  2022-06-10 15:04 [Bug libgcc/105920] New: __builtin_cpu_supports ("f16c") should check AVX hjl.tools at gmail dot com
  2022-06-10 17:54 ` [Bug libgcc/105920] " hjl.tools at gmail dot com
@ 2022-06-14 13:52 ` hjl.tools at gmail dot com
  1 sibling, 0 replies; 3+ messages in thread
From: hjl.tools at gmail dot com @ 2022-06-14 13:52 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105920

H.J. Lu <hjl.tools at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |FIXED
             Status|NEW                         |RESOLVED
   Target Milestone|---                         |11.4

--- Comment #2 from H.J. Lu <hjl.tools at gmail dot com> ---
Fixed for GCC 13 by

https://gcc.gnu.org/git/gitweb.cgi?p=gcc.git;h=751f306688508b08842d0ab967dee8e6c3b91351

Fixed for GCC 12.2 by:

https://gcc.gnu.org/git/?p=gcc.git;a=commit;h=4b06b7304066fb1016e017d15e189f2e745dceae

Fixed for GCC 11.4 by

https://gcc.gnu.org/git/?p=gcc.git;a=commit;h=30c1cde3adec938606cd49b1b4a262590b496719

^ permalink raw reply	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2022-06-14 13:52 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
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2022-06-10 15:04 [Bug libgcc/105920] New: __builtin_cpu_supports ("f16c") should check AVX hjl.tools at gmail dot com
2022-06-10 17:54 ` [Bug libgcc/105920] " hjl.tools at gmail dot com
2022-06-14 13:52 ` [Bug target/105920] " hjl.tools at gmail dot com

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