[all-commits] [llvm/llvm-project] da4b97: [OpenACC] Enforce all 'collapse' intervening rules...

[Erich Keane via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: da4b972ef690b40344cbb366cc4bdebada260e57
      https://github.com/llvm/llvm-project/commit/da4b972ef690b40344cbb366cc4bdebada260e57
  Author: Erich Keane <ekeane at nvidia.com>
  Date:   2024-10-02 (Wed, 02 Oct 2024)

  Changed paths:
    M clang/include/clang/Basic/DiagnosticSemaKinds.td
    M clang/include/clang/Sema/SemaOpenACC.h
    M clang/lib/Parse/ParseOpenACC.cpp
    M clang/lib/Parse/ParseStmt.cpp
    M clang/lib/Sema/SemaOpenACC.cpp
    M clang/lib/Sema/TreeTransform.h
    M clang/test/SemaOpenACC/loop-construct-collapse-clause.cpp

  Log Message:
  -----------
  [OpenACC] Enforce all 'collapse' intervening rules (#110684)

'collapse' makes the 'loop' construct apply to the next N nested loops,
and 'loop' requires all associated loops be 'for' loops (or range-for).

This patch adds this restriction, plus adds a number of infrastructure
changes to permit some of the other restrictions in the future to be
implemented.

'collapse' also requires that there is not any calls to other directives
 inside of the collapse region, so this also implements that limitation.



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