[all-commits] [llvm/llvm-project] db4c94: [OpenACC][CIR] Implement beginning of 'copy' lower...

[Erich Keane via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: db4c94f96410fd4432f8de9e9b1dec44ca07b6d8
      https://github.com/llvm/llvm-project/commit/db4c94f96410fd4432f8de9e9b1dec44ca07b6d8
  Author: Erich Keane <ekeane at nvidia.com>
  Date:   2025-05-19 (Mon, 19 May 2025)

  Changed paths:
    M clang/lib/CIR/CodeGen/CIRGenOpenACCClause.h
    M clang/lib/CIR/CodeGen/CIRGenStmtOpenACC.cpp
    M clang/lib/CIR/CodeGen/CIRGenStmtOpenACCLoop.cpp
    A clang/test/CIR/CodeGenOpenACC/compute-copy.c

  Log Message:
  -----------
  [OpenACC][CIR] Implement beginning of 'copy' lowering for compute con… (#140304)

…structs

This is a partial implementation of the 'copy' lowering. It is missing 3
things, which are coming in future patches:

1- does not handle subscript/subarrays for emission as variables 2- does
not handle member expressions for emissions as variables 3- does not
handle modifier-list

1 and 2 are because of the complexity and should be split off into a
separate patch. 3 is because it isn't clear how the IR is going to
handle this, and I'd like to make sure it gets done 'all at once' when
the IR is updated to handle these, so I'm pushing that off to the
future.

This DOES however handle the complexity of having a acc.copyin and
acc.copyout, plus the additional complexity of the 'async' clause.



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