AMDGPU: Force skip over SMRD, VMEM and s_waitcnt instructions
Summary: This fixes a large Dawn of War 3 performance regression with RADV from Mesa 19.0 to master which was caused by creating less code in some branches.
Reviewers: arsen, nhaehnle
Reviewed By: nhaehnle
Subscribers: arsenm, kzhuravl, jvesely, wdng, nhaehnle, yaxunl, dstuttard, tpr, t-tye, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D60824
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@358592
91177308-0d34-0410-b5e6-
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