This code was added just before LLVM 3 was removed, and can be considered a merge conflict.

Bug: b/130460252
Change-Id: If7d6f46c78a94cb8f3cc07ec4ba7c91a58e5926d
Reviewed-on: https://swiftshader-review.googlesource.com/c/SwiftShader/+/29813
Kokoro-Presubmit: kokoro <noreply+kokoro@google.com>
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
Reviewed-by: Nicolas Capens <nicolascapens@google.com>
Tested-by: Ben Clayton <bclayton@google.com>