Richard Smith 8a9a01614a Convert PointerUnion to a variadic template. ...

Summary:
Rather than duplicating code between PointerUnion, PointerUnion3, and
PointerUnion4 (and missing things from the latter cases, such as some of the
DenseMap support and operator==), convert PointerUnion to a variadic template
that can be used as a union of any number of pointers.

(This doesn't support PointerUnion<> right now. Adding a special case for that
would be possible, and perhaps even useful in some situations, but it doesn't
seem worthwhile until we have a concrete use case.)

Reviewers: dblaikie

Subscribers: dexonsmith, kristina, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D62027

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@360962 91177308-0d34-0410-b5e6-96231b3b80d8

2019-05-17 00:39:38 +00:00

..

llvm

Convert PointerUnion to a variadic template.

2019-05-17 00:39:38 +00:00

llvm-c

[llvm-c] Make LLVMGetStringErrorTypeId a proper prototype

2019-05-06 06:42:06 +00:00