[turbofan] Implemented the RoundUint64ToFloat32 TurboFan operator for x64, arm64,

src/ppc/macro-assembler-ppc.h

Index: src/ppc/macro-assembler-ppc.h
diff --git a/src/ppc/macro-assembler-ppc.h b/src/ppc/macro-assembler-ppc.h
index 1ec51bfa59631407105d5de98eb91fdc43f19092..8a8bca975106fc6fee42b14a7ec83999f2aff0e5 100644
--- a/src/ppc/macro-assembler-ppc.h
+++ b/src/ppc/macro-assembler-ppc.h
@@ -387,9 +387,10 @@ class MacroAssembler : public Assembler {
                          const Register int_scratch);
 
 #if V8_TARGET_ARCH_PPC64
+  void ConvertInt64ToFloat(Register src, DoubleRegister double_dst);
   void ConvertInt64ToDouble(Register src, DoubleRegister double_dst);
+  void ConvertUnsignedInt64ToFloat(Register src, DoubleRegister double_dst);
   void ConvertUnsignedInt64ToDouble(Register src, DoubleRegister double_dst);

[titzer, 2015/11/12 19:06:00]

Can we follow the same naming conventions here as in the compiler? I.e. Uint64
instead of UnsignedInt64.

[ahaas, 2015/11/12 20:49:18]

I used the same naming conventions as in other places in the PPC specific code.
I thought it is better to keep it consistent within the file than within the CL.

-  void ConvertInt64ToFloat(Register src, DoubleRegister double_dst);
 #endif
 
   // Converts the double_input to an integer.  Note that, upon return,