forked from OSchip/llvm-project
8a482b33fe
Summary: Two types of stores are possible in pixel shaders: stores to memory that are explicitly requested at the API level, and stores that are an implementation detail of register spilling or lowering of arrays. For the first kind of store, we must ensure that helper pixels have no effect and hence WQM must be disabled. The second kind of store must always be executed, because the written value may be loaded again in a way that is relevant for helper pixels as well -- and there are no externally visible effects anyway. This is a candidate for the 3.9 release branch. Reviewers: arsenm, tstellarAMD, mareko Subscribers: arsenm, kzhuravl, llvm-commits Differential Revision: https://reviews.llvm.org/D22675 llvm-svn: 277504 |
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