[all-commits] [llvm/llvm-project] e82b26: [HLSL] Vector Usual Arithmetic Conversions (#108659)

[Chris B via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: e82b26a3d388594a8af5640cd8aa570f7ecda469
      https://github.com/llvm/llvm-project/commit/e82b26a3d388594a8af5640cd8aa570f7ecda469
  Author: Chris B <chris.bieneman at me.com>
  Date:   2024-09-26 (Thu, 26 Sep 2024)

  Changed paths:
    M clang/include/clang/Basic/DiagnosticSemaKinds.td
    M clang/include/clang/Driver/Options.td
    M clang/include/clang/Sema/Sema.h
    M clang/include/clang/Sema/SemaHLSL.h
    M clang/lib/Sema/SemaExpr.cpp
    M clang/lib/Sema/SemaHLSL.cpp
    A clang/test/SemaHLSL/Language/UsualArithmeticConversions.hlsl

  Log Message:
  -----------
  [HLSL] Vector Usual Arithmetic Conversions (#108659)

HLSL has a different set of usual arithmetic conversions for vector
types to resolve a common type for binary operator expressions.

This PR implements the current spec proposal from:
https://github.com/microsoft/hlsl-specs/pull/311

There is one case that may need additional handling for implicitly
truncating `vector<T,1>` to `T` early to allow other transformations.

Fixes #106253



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