[all-commits] [llvm/llvm-project] b7e415: [HIP] Fix environment variable HIP_DEVICE_LIB_PATH

[Yaxun (Sam) Liu via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: b7e415f37f38c65ced6d725d100790526920bc0c
      https://github.com/llvm/llvm-project/commit/b7e415f37f38c65ced6d725d100790526920bc0c
  Author: Yaxun (Sam) Liu <yaxun.liu at amd.com>
  Date:   2020-01-28 (Tue, 28 Jan 2020)

  Changed paths:
    M clang/lib/Driver/ToolChains/CommonArgs.cpp
    M clang/lib/Driver/ToolChains/CommonArgs.h
    M clang/lib/Driver/ToolChains/HIP.cpp
    M clang/test/Driver/hip-device-libs.hip

  Log Message:
  -----------
  [HIP] Fix environment variable HIP_DEVICE_LIB_PATH

Currently device lib path set by environment variable HIP_DEVICE_LIB_PATH
does not work due to extra "-L" added to each entry.

This patch fixes that by allowing argument name to be empty in addDirectoryList.

Differential Revision: https://reviews.llvm.org/D73299