udiv_qr_3by2 vs divappr

[Torbjörn Granlund]

    Any particular machines you have in mind? Would be nice with some
    numbers.

  Any Sparc system except for T4/T5.
  Alpha except for ev6*.
  Pentium4 (in particular nocona in 64-bit mode).
  The original Intel Atom in particular in 64-bit mode.
  The newer inte Atom/Silvermont (but not the even newer Goldmont)
  in 64-bit mode.
  Arm A53/A57 and perhaps other current Arm cores.

Ah numbers were requested...

We have Pentium4 in the form of the system element.
An Intel Atom is available in the form of gege.
An Intel Atom Silvermont is available in the form of slm* (virtualised).

These 3 systems are behind ashell and under pdu control.

An A53/64 system is available in the form of odc2.

That system is behind ashell and powered-on.

Several A57 systems are available in the gcc compile farm (e.g. gcc117).

-- 
Torbjörn
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