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Fork of llvm with experimental commits and workarounds for RPCS3
3fc1696aca
Summary: Adding contained caching to AliasAnalysis. BasicAA is currently the only one using it. AA changes: - This patch is pulling the caches from BasicAAResults to AAResults, meaning the getModRefInfo call benefits from the IsCapturedCache as well when in "batch mode". - All AAResultBase implementations add the QueryInfo member to all APIs. AAResults APIs maintain wrapper APIs such that all alias()/getModRefInfo call sites are unchanged. - AA now provides a BatchAAResults type as a wrapper to AAResults. It keeps the AAResults instance and a QueryInfo instantiated to batch mode. It delegates all work to the AAResults instance with the batched QueryInfo. More API wrappers may be needed in BatchAAResults; only the minimum needed is currently added. MemorySSA changes: - All walkers are now templated on the AA used (AliasAnalysis=AAResults or BatchAAResults). - At build time, we optimize uses; now we create a local walker (lives only as long as OptimizeUses does) using BatchAAResults. - All Walkers have an internal AA and only use that now, never the AA in MemorySSA. The Walkers receive the AA they will use when built. - The walker we use for queries after the build is instantiated on AliasAnalysis and is built after building MemorySSA and setting AA. - All static methods doing walking are now templated on AliasAnalysisType if they are used both during build and after. If used only during build, the method now only takes a BatchAAResults. If used only after build, the method now takes an AliasAnalysis. Subscribers: sanjoy, arsenm, jvesely, nhaehnle, jlebar, george.burgess.iv, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D59315 llvm-svn: 356783 |
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