[PATCH] D65286: [OpenCL] Allow OpenCL C style vector initialization in C++

[Anastasia Stulova via Phabricator via cfe-commits]

Anastasia created this revision.
Anastasia added reviewers: rjmccall, rsmith, mantognini.
Herald added subscribers: ebevhan, yaxunl.

I am recreating the review from https://reviews.llvm.org/D59426 that seem to get lost somehow.

The idea is to be able to allow creating vector literals from other vectors.

Example from reported bug `PR41010`

  kernel void test(__global float4 *out)
  {
      float4 a = (float4)(1.0f, 2.0f, 3.0f, 4.0f);
      float4 v = (float4)(a.s23, a.s01);
      *out = v;
  }

The primary use case is OpenCL but it can be used for vector extensions in plain C++ too.


https://reviews.llvm.org/D65286

Files:
  lib/Sema/SemaInit.cpp
  test/CodeGenOpenCL/vector_literals_valid.cl

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