Implement Math.sin, cos and tan using table lookup and spline interpolation.

src/arm/full-codegen-arm.cc

Index: src/arm/full-codegen-arm.cc
diff --git a/src/arm/full-codegen-arm.cc b/src/arm/full-codegen-arm.cc
index c57c78559803c81e51137a32876688dff0ceebc0..de97c081216c50fe8cb564eb2abaf5d0dcbc8a6c 100644
--- a/src/arm/full-codegen-arm.cc
+++ b/src/arm/full-codegen-arm.cc
@@ -3721,33 +3721,9 @@ void FullCodeGenerator::EmitStringCompare(CallRuntime* expr) {
 }
 
 
-void FullCodeGenerator::EmitMathSin(CallRuntime* expr) {
-  // Load the argument on the stack and call the stub.
-  TranscendentalCacheStub stub(TranscendentalCache::SIN,
-                               TranscendentalCacheStub::TAGGED);
-  ZoneList<Expression*>* args = expr->arguments();
-  ASSERT(args->length() == 1);
-  VisitForStackValue(args->at(0));
-  __ CallStub(&stub);
-  context()->Plug(r0);
-}
-
-
-void FullCodeGenerator::EmitMathCos(CallRuntime* expr) {
-  // Load the argument on the stack and call the stub.
-  TranscendentalCacheStub stub(TranscendentalCache::COS,
-                               TranscendentalCacheStub::TAGGED);
-  ZoneList<Expression*>* args = expr->arguments();
-  ASSERT(args->length() == 1);
-  VisitForStackValue(args->at(0));
-  __ CallStub(&stub);
-  context()->Plug(r0);
-}
-
-
-void FullCodeGenerator::EmitMathTan(CallRuntime* expr) {
+void FullCodeGenerator::EmitMathLog(CallRuntime* expr) {
   // Load the argument on the stack and call the stub.
-  TranscendentalCacheStub stub(TranscendentalCache::TAN,
+  TranscendentalCacheStub stub(TranscendentalCache::LOG,
                                TranscendentalCacheStub::TAGGED);
   ZoneList<Expression*>* args = expr->arguments();
   ASSERT(args->length() == 1);
@@ -3757,24 +3733,22 @@ void FullCodeGenerator::EmitMathTan(CallRuntime* expr) {
 }
 
 
-void FullCodeGenerator::EmitMathLog(CallRuntime* expr) {
-  // Load the argument on the stack and call the stub.
-  TranscendentalCacheStub stub(TranscendentalCache::LOG,
-                               TranscendentalCacheStub::TAGGED);
+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));
-  __ CallStub(&stub);
+  __ CallRuntime(Runtime::kMath_sqrt, 1);
   context()->Plug(r0);
 }
 
 
-void FullCodeGenerator::EmitMathSqrt(CallRuntime* expr) {
+void FullCodeGenerator::EmitMathFloor(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);
+  __ CallRuntime(Runtime::kMath_floor, 1);
   context()->Plug(r0);
 }