[PATCH] Implementation of R_ARM_TARGET1

[Rui Ueyama]

LGTM. Please update the commit message before committing.


REPOSITORY
  rL LLVM

================
Comment at: lib/Driver/GnuLdDriver.cpp:563
@@ +562,3 @@
+        diag << "warning: ignoring unsupported ARM/ELF specific argument: "
+             << "--arm-target1-abs\n";
+    }
----------------
nit: can you make these two "if"s into two "else if"s in order to reduce nesting level?

http://reviews.llvm.org/D8707

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