[builtins] Introduce proper Float64Tan operator.

src/assembler.cc

Index: src/assembler.cc
diff --git a/src/assembler.cc b/src/assembler.cc
index ad4146a999994d7a61fe2559a983ed90d1acd103..02757131494bed7cfbcf82e70aed201cd5108b12 100644
--- a/src/assembler.cc
+++ b/src/assembler.cc
@@ -1573,6 +1573,11 @@ ExternalReference ExternalReference::ieee754_atanh_function(Isolate* isolate) {
       isolate, FUNCTION_ADDR(base::ieee754::atanh), BUILTIN_FP_FP_CALL));
 }
 
+ExternalReference ExternalReference::ieee754_cbrt_function(Isolate* isolate) {
+  return ExternalReference(Redirect(isolate, FUNCTION_ADDR(base::ieee754::cbrt),
+                                    BUILTIN_FP_FP_CALL));
+}
+
 ExternalReference ExternalReference::ieee754_cos_function(Isolate* isolate) {
   return ExternalReference(
       Redirect(isolate, FUNCTION_ADDR(base::ieee754::cos), BUILTIN_FP_CALL));
@@ -1583,6 +1588,11 @@ ExternalReference ExternalReference::ieee754_exp_function(Isolate* isolate) {
       Redirect(isolate, FUNCTION_ADDR(base::ieee754::exp), BUILTIN_FP_CALL));
 }
 
+ExternalReference ExternalReference::ieee754_expm1_function(Isolate* isolate) {
+  return ExternalReference(Redirect(
+      isolate, FUNCTION_ADDR(base::ieee754::expm1), BUILTIN_FP_FP_CALL));
+}
+
 ExternalReference ExternalReference::ieee754_log_function(Isolate* isolate) {
   return ExternalReference(
       Redirect(isolate, FUNCTION_ADDR(base::ieee754::log), BUILTIN_FP_CALL));
@@ -1593,24 +1603,14 @@ ExternalReference ExternalReference::ieee754_log1p_function(Isolate* isolate) {
       Redirect(isolate, FUNCTION_ADDR(base::ieee754::log1p), BUILTIN_FP_CALL));
 }
 
-ExternalReference ExternalReference::ieee754_log2_function(Isolate* isolate) {
-  return ExternalReference(
-      Redirect(isolate, FUNCTION_ADDR(base::ieee754::log2), BUILTIN_FP_CALL));
-}
-
 ExternalReference ExternalReference::ieee754_log10_function(Isolate* isolate) {
   return ExternalReference(
       Redirect(isolate, FUNCTION_ADDR(base::ieee754::log10), BUILTIN_FP_CALL));
 }
 
-ExternalReference ExternalReference::ieee754_cbrt_function(Isolate* isolate) {
-  return ExternalReference(Redirect(isolate, FUNCTION_ADDR(base::ieee754::cbrt),
-                                    BUILTIN_FP_FP_CALL));
-}
-
-ExternalReference ExternalReference::ieee754_expm1_function(Isolate* isolate) {
-  return ExternalReference(Redirect(
-      isolate, FUNCTION_ADDR(base::ieee754::expm1), BUILTIN_FP_FP_CALL));
+ExternalReference ExternalReference::ieee754_log2_function(Isolate* isolate) {
+  return ExternalReference(
+      Redirect(isolate, FUNCTION_ADDR(base::ieee754::log2), BUILTIN_FP_CALL));
 }
 
 ExternalReference ExternalReference::ieee754_sin_function(Isolate* isolate) {
@@ -1618,6 +1618,11 @@ ExternalReference ExternalReference::ieee754_sin_function(Isolate* isolate) {
       Redirect(isolate, FUNCTION_ADDR(base::ieee754::sin), BUILTIN_FP_CALL));
 }
 
+ExternalReference ExternalReference::ieee754_tan_function(Isolate* isolate) {
+  return ExternalReference(
+      Redirect(isolate, FUNCTION_ADDR(base::ieee754::tan), BUILTIN_FP_CALL));
+}
+
 ExternalReference ExternalReference::page_flags(Page* page) {
   return ExternalReference(reinterpret_cast<Address>(page) +
                            MemoryChunk::kFlagsOffset);