[PATCH] Set the default ISA for OpenBSD/mips64 to MIPS III

[Brad Smith]

Set the default ISA used for OpenBSD/mips64 to MIPS III.

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Index: lib/Driver/Tools.cpp
===================================================================
--- lib/Driver/Tools.cpp	(revision 225109)
+++ lib/Driver/Tools.cpp	(working copy)
@@ -977,6 +977,10 @@
     DefMips64CPU = "mips64r6";
   }
 
+  // MIPS3 is the default for mips64*-unknown-openbsd.
+  if (Triple.getOS() == llvm::Triple::OpenBSD)
+    DefMips64CPU = "mips3";
+
   if (Arg *A = Args.getLastArg(options::OPT_march_EQ,
                                options::OPT_mcpu_EQ))
     CPUName = A->getValue();