[mips][p5600] Add -mcpu=p5600 option.

Summary:

Reviewers: vkalintiris, atanasyan

Subscribers: cfe-commits

Differential Revision: http://reviews.llvm.org/D12234

llvm-svn: 249306
diff --git a/clang/lib/Driver/ToolChains.cpp b/clang/lib/Driver/ToolChains.cpp
index 26e7ca6..07c086a 100644
--- a/clang/lib/Driver/ToolChains.cpp
+++ b/clang/lib/Driver/ToolChains.cpp
@@ -1809,7 +1809,7 @@
   addMultilibFlag(isMips16(Args), "mips16", Flags);
   addMultilibFlag(CPUName == "mips32", "march=mips32", Flags);
   addMultilibFlag(CPUName == "mips32r2" || CPUName == "mips32r3" ||
-                      CPUName == "mips32r5",
+                      CPUName == "mips32r5" || CPUName == "p5600",
                   "march=mips32r2", Flags);
   addMultilibFlag(CPUName == "mips32r6", "march=mips32r6", Flags);
   addMultilibFlag(CPUName == "mips64", "march=mips64", Flags);