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

src/compiler/arm64/instruction-scheduler-arm64.cc

 // 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.
 
 #include "src/compiler/instruction-scheduler.h"
 
 namespace v8 {
 namespace internal {
 namespace compiler {
 
@@ skipping 79 matching lines @@
     case kArm64Float32RoundDown:
     case kArm64Float64Cmp:
     case kArm64Float64Add:
     case kArm64Float64Sub:
     case kArm64Float64Mul:
     case kArm64Float64Div:
     case kArm64Float64Mod:
     case kArm64Float64Max:
     case kArm64Float64Min:
     case kArm64Float64Abs:
-    case kArm64Float64Log:
     case kArm64Float64Neg:
     case kArm64Float64Sqrt:
     case kArm64Float64RoundDown:
     case kArm64Float64RoundTiesAway:
     case kArm64Float64RoundTruncate:
     case kArm64Float64RoundTiesEven:
     case kArm64Float64RoundUp:
     case kArm64Float32RoundTiesEven:
     case kArm64Float32RoundTruncate:
     case kArm64Float32RoundUp:
@@ skipping 225 matching lines @@
       return 5;
 
     default:
       return 2;
   }
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8