Implement hyperbolic math functions for ES6.

src/runtime.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 7770 matching lines @@
   if (y == 0) {
     return Smi::FromInt(1);
   } else {
     double result = power_double_double(x, y);
     if (std::isnan(result)) return isolate->heap()->nan_value();
     return isolate->heap()->AllocateHeapNumber(result);
   }
 }
 
 
+#define HYPERBOLIC_MATH_FUNCTION(name)                                         \
+RUNTIME_FUNCTION(MaybeObject*, Runtime_Math_##name) {                          \
+  SealHandleScope shs(isolate);                                                \
+  ASSERT(args.length() == 1);                                                  \
+  CONVERT_DOUBLE_ARG_CHECKED(x, 0);                                            \
+  return isolate->heap()->AllocateHeapNumber(name(x));                         \
+}
+
+HYPERBOLIC_MATH_FUNCTION(asinh)
+HYPERBOLIC_MATH_FUNCTION(acosh)
+HYPERBOLIC_MATH_FUNCTION(atanh)
+
+#undef HYPERBOLIC_MATH_FUNCTION
+
+
 RUNTIME_FUNCTION(MaybeObject*, Runtime_RoundNumber) {
   SealHandleScope shs(isolate);
   ASSERT(args.length() == 1);
   isolate->counters()->math_round()->Increment();
 
   if (!args[0]->IsHeapNumber()) {
     // Must be smi. Return the argument unchanged for all the other types
     // to make fuzz-natives test happy.
     return args[0];
   }
@@ skipping 7114 matching lines @@
     // Handle last resort GC and make sure to allow future allocations
     // to grow the heap without causing GCs (if possible).
     isolate->counters()->gc_last_resort_from_js()->Increment();
     isolate->heap()->CollectAllGarbage(Heap::kNoGCFlags,
                                        "Runtime::PerformGC");
   }
 }
 
 
 } }  // namespace v8::internal