Merge sin(a), cos(a) into one instruction. TODO: Implement for ARM and MIPS.

tests/language/arithmetic_test.dart

Index: tests/language/arithmetic_test.dart
===================================================================
--- tests/language/arithmetic_test.dart	(revision 30802)
+++ tests/language/arithmetic_test.dart	(working copy)
@@ -432,6 +432,15 @@
     var b = -1;
     for (var i = 0; i < 10; i++) Expect.equals(0x40000000, divMod(a, b));
   }
+  
+  static double sinCosSub(double a) => sin(a) - cos(a);
+  
+  static void testSinCos() {

[Florian Schneider, 2013/12/03 14:12:04]

Maybe test a few more values like PI, PI/2 as done for the other tests for sin
and cos

[srdjan, 2013/12/03 18:10:01]

Done.

+    var e = sin(1.234) - cos(1.234);
+    for (var i = 0; i < 20; i++) {
+      Expect.approxEquals(e, sinCosSub(1.234));
+    }
+  }
 
   static mySqrt(var x) => sqrt(x);
 
@@ -460,6 +469,7 @@
       testSmiDivModDeopt();
       testSqrtDeopt();
       testDoubleEquality();
+      testSinCos();
     }
   }
 }