[all-commits] [llvm/llvm-project] 106586: [Matrix] Add matrix type to Clang.

[Florian Hahn via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 10658691951f7e3ffd257f24e29e81a101daa204
      https://github.com/llvm/llvm-project/commit/10658691951f7e3ffd257f24e29e81a101daa204
  Author: Florian Hahn <flo at fhahn.com>
  Date:   2020-05-11 (Mon, 11 May 2020)

  Changed paths:
    M clang/include/clang/AST/ASTContext.h
    M clang/include/clang/AST/RecursiveASTVisitor.h
    M clang/include/clang/AST/Type.h
    M clang/include/clang/AST/TypeLoc.h
    M clang/include/clang/AST/TypeProperties.td
    M clang/include/clang/Basic/Attr.td
    M clang/include/clang/Basic/DiagnosticSemaKinds.td
    M clang/include/clang/Basic/Features.def
    M clang/include/clang/Basic/LangOptions.def
    M clang/include/clang/Basic/TypeNodes.td
    M clang/include/clang/Driver/Options.td
    M clang/include/clang/Sema/Sema.h
    M clang/include/clang/Serialization/TypeBitCodes.def
    M clang/lib/AST/ASTContext.cpp
    M clang/lib/AST/ASTStructuralEquivalence.cpp
    M clang/lib/AST/ExprConstant.cpp
    M clang/lib/AST/ItaniumMangle.cpp
    M clang/lib/AST/MicrosoftMangle.cpp
    M clang/lib/AST/Type.cpp
    M clang/lib/AST/TypePrinter.cpp
    M clang/lib/CodeGen/CGDebugInfo.cpp
    M clang/lib/CodeGen/CGDebugInfo.h
    M clang/lib/CodeGen/CGExpr.cpp
    M clang/lib/CodeGen/CodeGenFunction.cpp
    M clang/lib/CodeGen/CodeGenTypes.cpp
    M clang/lib/CodeGen/ItaniumCXXABI.cpp
    M clang/lib/Driver/ToolChains/Clang.cpp
    M clang/lib/Frontend/CompilerInvocation.cpp
    M clang/lib/Sema/SemaExpr.cpp
    M clang/lib/Sema/SemaLookup.cpp
    M clang/lib/Sema/SemaTemplate.cpp
    M clang/lib/Sema/SemaTemplateDeduction.cpp
    M clang/lib/Sema/SemaType.cpp
    M clang/lib/Sema/TreeTransform.h
    M clang/lib/Serialization/ASTReader.cpp
    M clang/lib/Serialization/ASTWriter.cpp
    A clang/test/CodeGen/debug-info-matrix-types.c
    A clang/test/CodeGen/matrix-type.c
    A clang/test/CodeGenCXX/matrix-type.cpp
    A clang/test/Parser/matrix-type-disabled.c
    A clang/test/SemaCXX/matrix-type.cpp
    M clang/tools/libclang/CIndex.cpp

  Log Message:
  -----------
  [Matrix] Add matrix type to Clang.

This patch adds a matrix type to Clang as described in the draft
specification in clang/docs/MatrixSupport.rst. It introduces a new option
-fenable-matrix, which can be used to enable the matrix support.

The patch adds new MatrixType and DependentSizedMatrixType types along
with the plumbing required. Loads of and stores to pointers to matrix
values are lowered to memory operations on 1-D IR arrays. After loading,
the loaded values are cast to a vector. This ensures matrix values use
the alignment of the element type, instead of LLVM's large vector
alignment.

The operators and builtins described in the draft spec will will be added in
follow-up patches.

Reviewers: martong, rsmith, Bigcheese, anemet, dexonsmith, rjmccall, aaron.ballman

Reviewed By: rjmccall

Differential Revision: https://reviews.llvm.org/D72281