Fix BMI assembler configure check and avx2/bmi/fma vgtest prereqs.
#317461.  (Mark Wielaard, mjw@redhat.com)


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@13343 a5019735-40e9-0310-863c-91ae7b9d1cf9
Update test results for EQ_UQ SSE FP comparison operation. BZ#317444.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@13344 a5019735-40e9-0310-863c-91ae7b9d1cf9
Be more aggressive about dropping the lock in spinloops.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@13345 a5019735-40e9-0310-863c-91ae7b9d1cf9
Cope with old linkers which don't support -Ttext-segment but which do
generate build-id sections. #317091.  (Mark Wielaard, mjw@redhat.com)


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@13346 a5019735-40e9-0310-863c-91ae7b9d1cf9