[PATCH] D99459: [OpenMP] Implement '#pragma omp unroll'. WIP.

[Michael Kruse via Phabricator via llvm-commits]

Meinersbur created this revision.
Meinersbur added projects: OpenMP, clang.
Herald added subscribers: dexonsmith, martong, arphaman, zzheng, guansong, yaxunl.
Meinersbur requested review of this revision.
Herald added a reviewer: jdoerfert.
Herald added subscribers: llvm-commits, cfe-commits, sstefan1.
Herald added a project: LLVM.

Implementation of the unroll directive introduced in OpenMP 5.1. Follows the approach from D76342 <https://reviews.llvm.org/D76342> for the tile directive (i.e. AST-based, not using the OpenMPIRBuilder). Tries to use `llvm.loop.unroll.*` metadata where possible, but has to fall back to an AST representation of the outer loop if the partially unrolled generated loop is associated with another directive (because it needs to compute the number of iterations).

This is work in progress, tests and some diagnostics are still missing.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D99459

Files:
  clang/include/clang-c/Index.h
  clang/include/clang/AST/OpenMPClause.h
  clang/include/clang/AST/RecursiveASTVisitor.h
  clang/include/clang/AST/StmtOpenMP.h
  clang/include/clang/Basic/StmtNodes.td
  clang/include/clang/Sema/Sema.h
  clang/include/clang/Serialization/ASTBitCodes.h
  clang/lib/AST/OpenMPClause.cpp
  clang/lib/AST/StmtOpenMP.cpp
  clang/lib/AST/StmtPrinter.cpp
  clang/lib/AST/StmtProfile.cpp
  clang/lib/Basic/OpenMPKinds.cpp
  clang/lib/CodeGen/CGOpenMPRuntime.cpp
  clang/lib/CodeGen/CGStmt.cpp
  clang/lib/CodeGen/CGStmtOpenMP.cpp
  clang/lib/CodeGen/CodeGenFunction.h
  clang/lib/Parse/ParseOpenMP.cpp
  clang/lib/Sema/SemaExceptionSpec.cpp
  clang/lib/Sema/SemaOpenMP.cpp
  clang/lib/Sema/TreeTransform.h
  clang/lib/Serialization/ASTReader.cpp
  clang/lib/Serialization/ASTReaderStmt.cpp
  clang/lib/Serialization/ASTWriter.cpp
  clang/lib/Serialization/ASTWriterStmt.cpp
  clang/lib/StaticAnalyzer/Core/ExprEngine.cpp
  clang/test/OpenMP/unroll_ast_print.cpp
  clang/test/OpenMP/unroll_codegen.cpp
  clang/tools/libclang/CIndex.cpp
  clang/tools/libclang/CXCursor.cpp
  llvm/include/llvm/Frontend/OpenMP/OMP.td

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