[all-commits] [llvm/llvm-project] df5a90: [OpenCL] Add ExtVectorElementExpr constant evaluat...

[Sven van Haastregt via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: df5a905aa8a868bdb700d88e427491ee56243e30
      https://github.com/llvm/llvm-project/commit/df5a905aa8a868bdb700d88e427491ee56243e30
  Author: Sven van Haastregt <sven.vanhaastregt at arm.com>
  Date:   2019-12-17 (Tue, 17 Dec 2019)

  Changed paths:
    M clang/lib/AST/ExprConstant.cpp
    M clang/test/CodeGenOpenCLCXX/constexpr.cl

  Log Message:
  -----------
  [OpenCL] Add ExtVectorElementExpr constant evaluation (PR42387)

Add constexpr evaluation for ExtVectorElementExpr nodes by evaluating
the underlying vector expression.  Add basic folding for the case that
Evaluate does not return an LValue.

Differential Revision: https://reviews.llvm.org/D71133