PPC64: Implemented the Word64Clz TurboFan operator.

src/compiler/ppc/instruction-codes-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_COMPILER_PPC_INSTRUCTION_CODES_PPC_H_
 #define V8_COMPILER_PPC_INSTRUCTION_CODES_PPC_H_
 
 namespace v8 {
 namespace internal {
 namespace compiler {
@@ skipping 44 matching lines @@
   V(PPC_NegDouble)                 \
   V(PPC_SqrtDouble)                \
   V(PPC_FloorDouble)               \
   V(PPC_CeilDouble)                \
   V(PPC_TruncateDouble)            \
   V(PPC_RoundDouble)               \
   V(PPC_MaxDouble)                 \
   V(PPC_MinDouble)                 \
   V(PPC_AbsDouble)                 \
   V(PPC_Cntlz32)                   \
+  V(PPC_Cntlz64)                   \
   V(PPC_Popcnt32)                  \
   V(PPC_Cmp32)                     \
   V(PPC_Cmp64)                     \
   V(PPC_CmpDouble)                 \
   V(PPC_Tst32)                     \
   V(PPC_Tst64)                     \
   V(PPC_Push)                      \
   V(PPC_PushFrame)                 \
   V(PPC_StoreToStackSlot)          \
   V(PPC_ExtendSignWord8)           \
@@ skipping 49 matching lines @@
 // MRR = [register + register]
 #define TARGET_ADDRESSING_MODE_LIST(V) \
   V(MRI) /* [%r0 + K] */               \
   V(MRR) /* [%r0 + %r1] */
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_PPC_INSTRUCTION_CODES_PPC_H_