[PATCH] [ms-coff] Add a test for proper handling of full Windows path names in the .drectve section

[Ehsan Akhgari]

Hi rafael,

This test ensures that we can correctly specify a full Windows path to the clang ASAN runtime libraries.  This is in preparation to fix PR20246.

http://reviews.llvm.org/D4427

Files:
  test/MC/COFF/linker-options.ll

Index: test/MC/COFF/linker-options.ll
===================================================================
--- test/MC/COFF/linker-options.ll
+++ test/MC/COFF/linker-options.ll
@@ -5,6 +5,7 @@
       metadata !{ metadata !"/DEFAULTLIB:msvcrt.lib" },
       metadata !{ metadata !"/DEFAULTLIB:msvcrt.lib",
                   metadata !"/DEFAULTLIB:secur32.lib" },
+      metadata !{ metadata !"/DEFAULTLIB:C:\5Cpath to\5Casan_rt.lib" },
       metadata !{ metadata !"/with spaces" } } }
 
 !llvm.module.flags = !{ !0 }
@@ -17,5 +18,6 @@
 ; CHECK: .ascii   " /DEFAULTLIB:msvcrt.lib"
 ; CHECK: .ascii   " /DEFAULTLIB:msvcrt.lib"
 ; CHECK: .ascii   " /DEFAULTLIB:secur32.lib"
+; CHECK: .ascii   " \"/DEFAULTLIB:C:\\path to\\asan_rt.lib\""
 ; CHECK: .ascii   " \"/with spaces\""
 ; CHECK: .ascii   " /EXPORT:_foo"
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