[builtins] Introduce proper base::ieee754::log.

src/compiler/arm/instruction-scheduler-arm.cc

 // Copyright 2015 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.
 
 #include "src/compiler/instruction-scheduler.h"
 
 namespace v8 {
 namespace internal {
 namespace compiler {
 
@@ skipping 55 matching lines @@
     case kArmVsqrtF32:
     case kArmVcmpF64:
     case kArmVaddF64:
     case kArmVsubF64:
     case kArmVmulF64:
     case kArmVmlaF64:
     case kArmVmlsF64:
     case kArmVdivF64:
     case kArmVmodF64:
     case kArmVabsF64:
-    case kArmVlogF64:
     case kArmVnegF64:
     case kArmVsqrtF64:
     case kArmVrintmF32:
     case kArmVrintmF64:
     case kArmVrintpF32:
     case kArmVrintpF64:
     case kArmVrintzF32:
     case kArmVrintzF64:
     case kArmVrintaF64:
     case kArmVrintnF32:
@@ skipping 51 matching lines @@
 
 
 int InstructionScheduler::GetInstructionLatency(const Instruction* instr) {
   // TODO(all): Add instruction cost modeling.
   return 1;
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8