[all-commits] [llvm/llvm-project] 61dd48: [MLIR][LLVMDialect] SelectionOp conversion pattern

[George Mitenkov via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 61dd481f11051450522bcd2cfcb7222a90d3464e
      https://github.com/llvm/llvm-project/commit/61dd481f11051450522bcd2cfcb7222a90d3464e
  Author: George Mitenkov <georgemitenk0v at gmail.com>
  Date:   2020-07-21 (Tue, 21 Jul 2020)

  Changed paths:
    M mlir/lib/Conversion/SPIRVToLLVM/ConvertSPIRVToLLVM.cpp
    M mlir/test/Conversion/SPIRVToLLVM/control-flow-ops-to-llvm.mlir

  Log Message:
  -----------
  [MLIR][LLVMDialect] SelectionOp conversion pattern

This patch introduces conversion pattern for `spv.selection` op.
The conversion can only be applied to selection with all blocks being
reachable. Moreover, selection with control attributes "Flatten" and
"DontFlatten" is not supported.
Since the `PatternRewriter` hook for block merging has not been implemented
for `ConversionPatternRewriter`, merge and continue blocks are kept
separately.

Reviewed By: antiagainst, ftynse

Differential Revision: https://reviews.llvm.org/D83860