66abe64466
This pass is intended to spot cases where we can do better than the default bufferization and to rewrite those specific cases. Then the default bufferization (bufferize-hlfir pass) can handle everything else. The transformation added in this patch rewrites simple element-wise updates to an array to a do-loop modifying the array in place instead of creating and assigning an array temporary. See the RFC at https://discourse.llvm.org/t/rfc-hlfir-optimized-bufferization-for-elemental-array-updates This patch gets the improvement to exchange2 but not the improvement to cam4 described in the RFC. I think the cam4 improvement will require better alias analysis. I aim to follow up to fix this in a later patch. With changes since the RFC, the pass improves polyhedron channel2 by about 52%. Depends on: D156805 D157718 D157626 Differential Revision: https://reviews.llvm.org/D157107
33 lines
556 B
CMake
33 lines
556 B
CMake
get_property(dialect_libs GLOBAL PROPERTY MLIR_DIALECT_LIBS)
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add_flang_library(HLFIRTransforms
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BufferizeHLFIR.cpp
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ConvertToFIR.cpp
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InlineElementals.cpp
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LowerHLFIRIntrinsics.cpp
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LowerHLFIROrderedAssignments.cpp
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ScheduleOrderedAssignments.cpp
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SimplifyHLFIRIntrinsics.cpp
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OptimizedBufferization.cpp
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DEPENDS
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FIRDialect
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HLFIROpsIncGen
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${dialect_libs}
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LINK_LIBS
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FIRAnalysis
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FIRDialect
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FIRBuilder
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FIRDialectSupport
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FIRSupport
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HLFIRDialect
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MLIRIR
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${dialect_libs}
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LINK_COMPONENTS
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AsmParser
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AsmPrinter
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Remarks
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)
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