[builtins] Introduce proper Float64Cos and Float64Sin.

src/compiler/mips64/code-generator-mips64.cc

Index: src/compiler/mips64/code-generator-mips64.cc
diff --git a/src/compiler/mips64/code-generator-mips64.cc b/src/compiler/mips64/code-generator-mips64.cc
index 6be13daba74b5e738e189ade36b87dc2295a8847..1e9c1535e274e39e7bb2d4e23f1b5fc4da1a22e1 100644
--- a/src/compiler/mips64/code-generator-mips64.cc
+++ b/src/compiler/mips64/code-generator-mips64.cc
@@ -759,6 +759,12 @@ CodeGenerator::CodeGenResult CodeGenerator::AssembleArchInstruction(
     case kIeee754Float64Atanh:
       ASSEMBLE_IEEE754_UNOP(atanh);
       break;
+    case kIeee754Float64Cos:
+      ASSEMBLE_IEEE754_UNOP(cos);
+      break;
+    case kIeee754Float64Cbrt:
+      ASSEMBLE_IEEE754_UNOP(cbrt);
+      break;
     case kIeee754Float64Exp:
       ASSEMBLE_IEEE754_UNOP(exp);
       break;
@@ -777,8 +783,8 @@ CodeGenerator::CodeGenResult CodeGenerator::AssembleArchInstruction(
     case kIeee754Float64Log10:
       ASSEMBLE_IEEE754_UNOP(log10);
       break;
-    case kIeee754Float64Cbrt:
-      ASSEMBLE_IEEE754_UNOP(cbrt);
+    case kIeee754Float64Sin:
+      ASSEMBLE_IEEE754_UNOP(sin);
       break;
     case kMips64Add:
       __ Addu(i.OutputRegister(), i.InputRegister(0), i.InputOperand(1));