PPC64: Implemented the RoundInt64ToFloat32 TurboFan operator.

src/ppc/assembler-ppc.cc

Index: src/ppc/assembler-ppc.cc
diff --git a/src/ppc/assembler-ppc.cc b/src/ppc/assembler-ppc.cc
index 5021b387913034bd22aff8b72d978fe5f87ee7a1..84f3b4265e1125e76beffae4ddee61ccbdfc6c40 100644
--- a/src/ppc/assembler-ppc.cc
+++ b/src/ppc/assembler-ppc.cc
@@ -2158,6 +2158,12 @@ void Assembler::fcfid(const DoubleRegister frt, const DoubleRegister frb,
 }
 
 
+void Assembler::fcfids(const DoubleRegister frt, const DoubleRegister frb,
+                       RCBit rc) {
+  emit(EXT3 | FCFID | frt.code() * B21 | frb.code() * B11 | rc);
+}
+
+
 void Assembler::fctid(const DoubleRegister frt, const DoubleRegister frb,
                       RCBit rc) {
   emit(EXT4 | FCTID | frt.code() * B21 | frb.code() * B11 | rc);