PPC: [turbofan] Add RoundUint32ToFloat32 operator to Turbofan.

src/ppc/macro-assembler-ppc.h

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_PPC_MACRO_ASSEMBLER_PPC_H_
 #define V8_PPC_MACRO_ASSEMBLER_PPC_H_
 
 #include "src/assembler.h"
 #include "src/bailout-reason.h"
 #include "src/frames.h"
@@ skipping 357 matching lines @@
   // Does not handle errors.
   void FlushICache(Register address, size_t size, Register scratch);
 
   // If the value is a NaN, canonicalize the value else, do nothing.
   void CanonicalizeNaN(const DoubleRegister dst, const DoubleRegister src);
   void CanonicalizeNaN(const DoubleRegister value) {
     CanonicalizeNaN(value, value);
   }
 
   // Converts the integer (untagged smi) in |src| to a double, storing
-  // the result to |double_dst|
-  void ConvertIntToDouble(Register src, DoubleRegister double_dst);
+  // the result to |dst|
+  void ConvertIntToDouble(Register src, DoubleRegister dst);
 
   // Converts the unsigned integer (untagged smi) in |src| to
-  // a double, storing the result to |double_dst|
-  void ConvertUnsignedIntToDouble(Register src, DoubleRegister double_dst);
+  // a double, storing the result to |dst|
+  void ConvertUnsignedIntToDouble(Register src, DoubleRegister dst);
 
   // Converts the integer (untagged smi) in |src| to
   // a float, storing the result in |dst|
-  // Warning: The value in |int_scrach| will be changed in the process!
-  void ConvertIntToFloat(const DoubleRegister dst, const Register src,
-                         const Register int_scratch);
+  void ConvertIntToFloat(Register src, DoubleRegister dst);
+
+  // Converts the unsigned integer (untagged smi) in |src| to
+  // a float, storing the result in |dst|
+  void ConvertUnsignedIntToFloat(Register src, DoubleRegister dst);
 
 #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);
 #endif
 
   // Converts the double_input to an integer.  Note that, upon return,
   // the contents of double_dst will also hold the fixed point representation.
@@ skipping 1206 matching lines @@
 #define ACCESS_MASM(masm)    \
   masm->stop(__FILE_LINE__); \
   masm->
 #else
 #define ACCESS_MASM(masm) masm->
 #endif
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_PPC_MACRO_ASSEMBLER_PPC_H_