[mips] Add predicate HasFPIdx for floating-point indexed load instruction
support and use it in place of HasMips32r2Or64.

llvm-svn: 168089
diff --git a/llvm/lib/Target/Mips/MipsSubtarget.cpp b/llvm/lib/Target/Mips/MipsSubtarget.cpp
index 930af4d..a7436ad 100644
--- a/llvm/lib/Target/Mips/MipsSubtarget.cpp
+++ b/llvm/lib/Target/Mips/MipsSubtarget.cpp
@@ -31,8 +31,8 @@
   MipsArchVersion(Mips32), MipsABI(UnknownABI), IsLittle(little),
   IsSingleFloat(false), IsFP64bit(false), IsGP64bit(false), HasVFPU(false),
   IsLinux(true), HasSEInReg(false), HasCondMov(false), HasMulDivAdd(false),
-  HasMinMax(false), HasSwap(false), HasBitCount(false), InMips16Mode(false),
-  HasDSP(false), HasDSPR2(false), IsAndroid(false)
+  HasMinMax(false), HasSwap(false), HasBitCount(false), HasFPIdx(false),
+  InMips16Mode(false), HasDSP(false), HasDSPR2(false), IsAndroid(false)
 {
   std::string CPUName = CPU;
   if (CPUName.empty())