[all-commits] [llvm/llvm-project] 88cdd9: [flang] Add reduction semantics to fir.do_loop (#9...

[khaki3 via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 88cdd9905597ace5b1ac7d080df5326d3399b3f8
      https://github.com/llvm/llvm-project/commit/88cdd9905597ace5b1ac7d080df5326d3399b3f8
  Author: khaki3 <47756807+khaki3 at users.noreply.github.com>
  Date:   2024-06-06 (Thu, 06 Jun 2024)

  Changed paths:
    M flang/include/flang/Optimizer/Dialect/FIRAttr.td
    M flang/include/flang/Optimizer/Dialect/FIROps.td
    M flang/lib/Optimizer/Dialect/FIRAttr.cpp
    M flang/lib/Optimizer/Dialect/FIROps.cpp
    A flang/test/Fir/loop03.fir

  Log Message:
  -----------
  [flang] Add reduction semantics to fir.do_loop (#93934)

Derived from #92480. This PR introduces reduction semantics into loops
for DO CONCURRENT REDUCE. The `fir.do_loop` operation now invisibly has
the `operandSegmentsizes` attribute and takes variable-length reduction
operands with their operations given as `fir.reduce_attr`. For the sake
of compatibility, `fir.do_loop`'s builder has additional arguments at
the end. The `iter_args` operand should be placed in front of the
declaration of result types, so the new operand for reduction variables
(`reduce`) is put in the middle of arguments.



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