[MCA] Show aggregate over Average Wait times for the whole snippet (PR43219)
As disscused in https://bugs.llvm.org/show_bug.cgi?id=43219,
i believe it may be somewhat useful to show some aggregates
over all the sea of statistics provided.
Average Wait times (based on the timeline view): : Executions : Average time spent waiting in a scheduler's queue : Average time spent waiting in a scheduler's queue while ready : Average time elapsed from WB until retire stage     0. 3 1.0 1.0 4.7 vmulps %xmm0, %xmm1, %xmm2 1. 3 2.7 0.0 2.3 vhaddps %xmm2, %xmm2, %xmm3 2. 3 6.0 0.0 0.0 vhaddps %xmm3, %xmm3, %xmm4 3 3.2 0.3 2.3 <total>
I.e. we average the averages.
Reviewers: andreadb, mattd, RKSimon
Reviewed By: andreadb
Subscribers: gbedwell, arphaman, llvm-commits
Differential Revision: https://reviews.llvm.org/D68714