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

src/mips/full-codegen-mips.cc

Index: src/mips/full-codegen-mips.cc
diff --git a/src/mips/full-codegen-mips.cc b/src/mips/full-codegen-mips.cc
index cbd0788121225de87634145e3225d6091ab6b235..620480275f8fdb27ff1c9a4174ce2db17df1285d 100644
--- a/src/mips/full-codegen-mips.cc
+++ b/src/mips/full-codegen-mips.cc
@@ -3756,35 +3756,9 @@ 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));
-  __ mov(a0, result_register());  // Stub requires parameter in a0 and on tos.
-  __ CallStub(&stub);
-  context()->Plug(v0);
-}
-
-
-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));
-  __ mov(a0, result_register());  // Stub requires parameter in a0 and on tos.
-  __ CallStub(&stub);
-  context()->Plug(v0);
-}
-
-
-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);
@@ -3795,25 +3769,22 @@ 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));
-  __ mov(a0, result_register());  // Stub requires parameter in a0 and on tos.
-  __ CallStub(&stub);
+  __ CallRuntime(Runtime::kMath_sqrt, 1);
   context()->Plug(v0);
 }
 
 
-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(v0);
 }