With MSVC, compiling with AVX2 support will also result in the
generation of BMI2 instructions. Some early Haswell CPUs reportedly support AVX2 but not BMI2. We have seen crashes (illegal instruction)
on these CPUs in our AVX2 code paths on MULX instructions (part of BMI2).
Including a check for BMI2 when checking for AVX2 support is
expected to solve the issue.
Please see the bug referenced below for more background on this issue.
Bug: chromium:1315519
Change-Id: I3a0a9838f1f632704ba505ecbb81a6f8b1889319
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/260323
Commit-Queue: Gustaf Ullberg <gustaf@webrtc.org>
Reviewed-by: Sam Zackrisson <saza@webrtc.org>
Reviewed-by: Henrik Andreasson <henrika@google.com>
Reviewed-by: Niels Moller <nisse@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#36701}
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