Inline fsin/fcos. Huge speedup on Box2D.

runtime/vm/flow_graph_compiler_arm.cc

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/globals.h"  // Needed here to get TARGET_ARCH_ARM.
 #if defined(TARGET_ARCH_ARM)
 
 #include "vm/flow_graph_compiler.h"
 
 #include "vm/ast_printer.h"
@@ skipping 25 matching lines @@
     ASSERT(!block_info_[i]->jump_label()->IsLinked());
   }
 }
 
 
 bool FlowGraphCompiler::SupportsUnboxedMints() {
   return false;
 }
 
 
+bool FlowGraphCompiler::SupportsInlinedTrigonometrics() {

[Ivan Posva, 2013/08/05 23:32:16]

Please add a TODO to avoid boxing/unboxing for these kinds of functions even if
there are no direct instructions for these functions.

[srdjan, 2013/08/06 15:43:05]

Done.

+  return false;
+}
+
+
 RawDeoptInfo* CompilerDeoptInfo::CreateDeoptInfo(FlowGraphCompiler* compiler,
                                                  DeoptInfoBuilder* builder) {
   if (deopt_env_ == NULL) return DeoptInfo::null();
 
   intptr_t stack_height = compiler->StackSize();
   AllocateIncomingParametersRecursive(deopt_env_, &stack_height);
 
   intptr_t slot_ix = 0;
   Environment* current = deopt_env_;
 
@@ skipping 1839 matching lines @@
   DRegister dreg = EvenDRegisterOf(reg);
   __ vldrd(dreg, Address(SP, kDoubleSize, Address::PostIndex));
 }
 
 
 #undef __
 
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_ARM