[gcc/meissner/heads/work252-float] (18 commits) Merge commit 'refs/users/meissner/heads/work252-float' of g

The branch 'meissner/heads/work252-float' was updated to point to:

 c2ffd35be907... Merge commit 'refs/users/meissner/heads/work252-float' of g

It previously pointed to:

 f28af863a24f... Merge commit 'refs/users/meissner/heads/work252-float' of g

Diff:

Summary of changes (added commits):
-----------------------------------

  c2ffd35... Merge commit 'refs/users/meissner/heads/work252-float' of g
  ed9bc20... Update ChangeLog.*
  09405c6... Add _Float16 and __bfloat16 tests.
  a6a4682... Optimize __bfloat16 scalar code.
  fc31bee... Add 16-bit floating point vectorization.
  f30f0f0... Add BF/HF neg, abs operands and logical insns.
  477a7d4... Add conversions between 16-bit floating point and other sca
  521da75... Add conversions between __bfloat16 and float/double.
  d8c4b1b... Add conversions between _Float16 and float/double.
  0711266... Add HF/BF emulation functions to libgcc.
  1f89dd3... Add initial 16-bit floating point support.
  b12ff7c... Add infrastructure for _Float16 and __bfloat16 types.
  0103072... Add ChangeLog.float and update REVISION.
  d7f8cd4... Merge commit 'refs/users/meissner/heads/work252' of git+ssh (*)
  f98f178... Add ChangeLog.meissner and REVISION. (*)
  7c19a52... Fix m68k bootstrap due to -Wempty-body warning (*)
  6c3bea1... testsuite/aarch64: Update bitint-args.c for w vs x reg usag (*)
  2605893... x86: Check register argument spill by callee (*)

(*) This commit already exists in another branch.
    Because the reference `refs/users/meissner/heads/work252-float' matches
    your hooks.email-new-commits-only configuration,
    no separate email is sent for this commit.