[all-commits] [llvm/llvm-project] b102e6: [OpenCL] Fix overloading resolution of addrspace c...

[Ole Strøhm via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: b102e6880ab06654f945284a520f68c099732f44
      https://github.com/llvm/llvm-project/commit/b102e6880ab06654f945284a520f68c099732f44
  Author: Ole Strohm <olemarius.strohm at arm.com>
  Date:   2021-06-11 (Fri, 11 Jun 2021)

  Changed paths:
    M clang/lib/Sema/SemaOverload.cpp
    M clang/test/CodeGenOpenCLCXX/addrspace-constructors.clcpp
    M clang/test/SemaOpenCLCXX/addrspace-constructors.clcpp

  Log Message:
  -----------
  [OpenCL] Fix overloading resolution of addrspace constructors

This fixes the prioritization of address spaces when choosing a
constructor, stopping them from being considered equally good,
which made the construction of types that could be constructed
by more than one of the constructors.

It does this by preferring the most specific address space,
which is decided by seeing if one of the address spaces is
a superset of the other, and preferring the other.

Fixes: PR50329

Reviewed By: Anastasia

Differential Revision: https://reviews.llvm.org/D102850