[PATCH] D81083: [Clang] Allow "vector_size" applied to Booleans

[Simon Moll via Phabricator via cfe-commits]

simoll created this revision.
simoll added reviewers: hfinkel, erichkeane, craig.topper, rsandifo-arm, kaz7, k-ishizaka.
simoll added a project: clang.
Herald added subscribers: cfe-commits, kristof.beyls.
Herald added a reviewer: rengolin.
simoll updated this revision to Diff 268140.
simoll added a comment.

NFC. Undid stray change.


This patch extends Clang to allow 'bool' as a valid vector element type (attribute `vector_size`).

This is the natural type for SIMD masks and facilitates clean vector intrinsic declarations.
Vectors of i1 are supported on IR level and below down to many SIMD ISAs, such as AVX512, ARM SVE (fixed vector length) and the VE target (NEC SX-Aurora TSUBASA).

The RFC on cfe-dev: https://lists.llvm.org/pipermail/cfe-dev/2020-May/065434.html


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D81083

Files:
  clang/docs/LanguageExtensions.rst
  clang/include/clang/AST/ASTContext.h
  clang/include/clang/Sema/Sema.h
  clang/lib/AST/ASTContext.cpp
  clang/lib/AST/TypePrinter.cpp
  clang/lib/CodeGen/CGExpr.cpp
  clang/lib/CodeGen/CGExprScalar.cpp
  clang/lib/CodeGen/CGRecordLayoutBuilder.cpp
  clang/lib/CodeGen/CodeGenFunction.cpp
  clang/lib/CodeGen/CodeGenFunction.h
  clang/lib/CodeGen/CodeGenTypes.cpp
  clang/lib/Sema/SemaExpr.cpp
  clang/lib/Sema/SemaExprCXX.cpp
  clang/lib/Sema/SemaType.cpp
  clang/test/SemaCXX/vector.cpp

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