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AMDGPU: llvm.amdgcn.interp.mov is a source of divergence 

Summary:
While the result is constant across a single primitive, each pixel
shader wave can have pixels from multiple primitives.

Reviewers: tstellarAMD, arsenm

Subscribers: kzhuravl, wdng, yaxunl, llvm-commits, tony-tye

Differential Revision: https://reviews.llvm.org/D27572

llvm-svn: 289447
This commit is contained in:
Nicolai Haehnle 2016-12-12 16:52:19 +00:00
parent 84171bd476
commit f45ea4bbc5
1 changed files with 1 additions and 0 deletions
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1
llvm/lib/Target/AMDGPU/AMDGPUTargetTransformInfo.cpp
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@ -241,6 +241,7 @@ static bool isIntrinsicSourceOfDivergence(const TargetIntrinsicInfo *TII,
case Intrinsic::amdgcn_workitem_id_x:
case Intrinsic::amdgcn_workitem_id_y:
case Intrinsic::amdgcn_workitem_id_z:
case Intrinsic::amdgcn_interp_mov:
case Intrinsic::amdgcn_interp_p1:
case Intrinsic::amdgcn_interp_p2:
case Intrinsic::amdgcn_mbcnt_hi: