[PATCH 0/5] Reinstate ability to use Qemu on pre-SSE4.1 x86 hosts

[Alexander Monakov]

Hello,

I'm sending straightforward reverts to recent patches that bumped minimum
required x86 instruction set to SSE4.2. The older chips did not stop working,
and people still test and use new software on older hardware:
https://sourceware.org/bugzilla/show_bug.cgi?id=31867

Considering the very minor gains from the baseline raise, I'm honestly not
sure why it happened. It seems better to let distributions handle that.

Alexander Monakov (5):
  Revert "host/i386: assume presence of POPCNT"
  Revert "host/i386: assume presence of SSSE3"
  Revert "host/i386: assume presence of SSE2"
  Revert "host/i386: assume presence of CMOV"
  Revert "meson: assume x86-64-v2 baseline ISA"

 host/include/i386/host/cpuinfo.h |  3 +++
 meson.build                      | 10 +++-------
 tcg/i386/tcg-target.c.inc        | 15 ++++++++++++++-
 tcg/i386/tcg-target.h            |  5 +++--
 util/bufferiszero.c              |  4 ++--
 util/cpuinfo-i386.c              |  7 +++++--
 6 files changed, 30 insertions(+), 14 deletions(-)

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2.32.0