Subzero, MIPS32: Floating point load/store and format conversion instructions

src/IceTargetLoweringMIPS32.cpp

 //
 //                        The Subzero Code Generator
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 ///
 /// \file
 /// \brief Implements the TargetLoweringMIPS32 class, which consists almost
@@ skipping 1102 matching lines @@
   case InstCast::Trunc: {
     if (Src0Ty == IceType_i64)
       Src0 = loOperand(Src0);
     Variable *Src0R = legalizeToReg(Src0);
     Variable *T = makeReg(DestTy);
     _mov(T, Src0R);
     _mov(Dest, T);
     break;
   }
   case InstCast::Fptrunc:
+    // Use _cvt_d_s
     UnimplementedLoweringError(this, Instr);
     break;
   case InstCast::Fpext: {
+    // Use _cvt_s_d
     UnimplementedLoweringError(this, Instr);
     break;
   }
   case InstCast::Fptosi:
     UnimplementedLoweringError(this, Instr);
     break;
   case InstCast::Fptoui:
     UnimplementedLoweringError(this, Instr);
     break;
   case InstCast::Sitofp:
@@ skipping 563 matching lines @@
   Str << "\t.set\t"
       << "nomips16\n";
 }
 
 SmallBitVector TargetMIPS32::TypeToRegisterSet[RCMIPS32_NUM];
 SmallBitVector TargetMIPS32::TypeToRegisterSetUnfiltered[RCMIPS32_NUM];
 SmallBitVector TargetMIPS32::RegisterAliases[RegMIPS32::Reg_NUM];
 
 } // end of namespace MIPS32
 } // end of namespace Ice