Please backport r352610 to 8.0 ([clang] [Driver] [NetBSD] Append -rpath for shared compiler-rt runtimes)

[llvmbot]

Bugzilla Link	40530
Resolution	FIXED
Resolved on	Jan 30, 2019 11:14
Version	trunk
OS	Linux
Blocks	#39678
Reporter	LLVM Bugzilla Contributor
CC	@zmodem,@zygoloid

Extended Description

Please backport r352610 to 8.0 branch. TIA.

[clang] [Driver] [NetBSD] Append -rpath for shared compiler-rt runtimes

Append appropriate -rpath when using shared compiler-rt runtimes,
e.g. '-fsanitize=address -shared-libasan'. There's already a similar
logic in CommonArgs.cpp but it uses non-standard arch-suffixed
installation directory while we want our driver to work with standard
installation paths.

Differential Revision: https://reviews.llvm.org/D57303

[zmodem]

Merged in r352650. Thanks!