Revert "Clean up runtime functions for Maths."

src/arm64/full-codegen-arm64.cc

Index: src/arm64/full-codegen-arm64.cc
diff --git a/src/arm64/full-codegen-arm64.cc b/src/arm64/full-codegen-arm64.cc
index d8f140254e0de0eb92893580a275f604aac415ba..d40e74aa275401eb53c8da8b166982517b206709 100644
--- a/src/arm64/full-codegen-arm64.cc
+++ b/src/arm64/full-codegen-arm64.cc
@@ -3492,6 +3492,26 @@ void FullCodeGenerator::EmitStringCompare(CallRuntime* expr) {
 }
 
 
+void FullCodeGenerator::EmitMathLog(CallRuntime* expr) {
+  // Load the argument on the stack and call the runtime function.
+  ZoneList<Expression*>* args = expr->arguments();
+  ASSERT(args->length() == 1);
+  VisitForStackValue(args->at(0));
+  __ CallRuntime(Runtime::kMath_log, 1);
+  context()->Plug(x0);
+}
+
+
+void FullCodeGenerator::EmitMathSqrt(CallRuntime* expr) {
+  // Load the argument on the stack and call the runtime function.
+  ZoneList<Expression*>* args = expr->arguments();
+  ASSERT(args->length() == 1);
+  VisitForStackValue(args->at(0));
+  __ CallRuntime(Runtime::kMath_sqrt, 1);
+  context()->Plug(x0);
+}
+
+
 void FullCodeGenerator::EmitCallFunction(CallRuntime* expr) {
   ASM_LOCATION("FullCodeGenerator::EmitCallFunction");
   ZoneList<Expression*>* args = expr->arguments();