Initial SIMDBC interpreter.

runtime/vm/intrinsifier.cc

 // Copyright (c) 2012, 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.
 // Class for intrinsifying functions.
 
 #include "vm/assembler.h"
 #include "vm/compiler.h"
 #include "vm/flags.h"
 #include "vm/flow_graph.h"
 #include "vm/flow_graph_compiler.h"
@@ skipping 77 matching lines @@
   // Setup all dart:developer lib functions that can be intrinsified.
   lib = Library::DeveloperLibrary();
   ASSERT(!lib.IsNull());
   DEVELOPER_LIB_INTRINSIC_LIST(SETUP_FUNCTION);
 
 #undef SETUP_FUNCTION
 }
 #endif  // defined(DART_NO_SNAPSHOT).
 
 
+// DBC does not use graph intrinsics.
+#if !defined(TARGET_ARCH_DBC)
 static void EmitCodeFor(FlowGraphCompiler* compiler,
                         FlowGraph* graph) {
   // The FlowGraph here is constructed by the intrinsics builder methods, and
   // is different from compiler->flow_graph(), the original method's flow graph.
   compiler->assembler()->Comment("Graph intrinsic");
   for (intptr_t i = 0; i < graph->reverse_postorder().length(); i++) {
     BlockEntryInstr* block = graph->reverse_postorder()[i];
     if (block->IsGraphEntry()) continue;  // No code for graph entry needed.
 
     if (block->HasParallelMove()) {
       compiler->parallel_move_resolver()->EmitNativeCode(
           block->parallel_move());
     }
 
     for (ForwardInstructionIterator it(block); !it.Done(); it.Advance()) {
       Instruction* instr = it.Current();
       if (FLAG_code_comments) compiler->EmitComment(instr);
       if (instr->IsParallelMove()) {
         compiler->parallel_move_resolver()->EmitNativeCode(
             instr->AsParallelMove());
       } else {
         ASSERT(instr->locs() != NULL);
         // Calls are not supported in intrinsics code.
         ASSERT(!instr->locs()->always_calls());
         instr->EmitNativeCode(compiler);
       }
     }
   }
 }
+#endif
 
 
 bool Intrinsifier::GraphIntrinsify(const ParsedFunction& parsed_function,
                                    FlowGraphCompiler* compiler) {
+#if defined(TARGET_ARCH_DBC)
+  return false;
+#else
   ZoneGrowableArray<const ICData*>* ic_data_array =
       new ZoneGrowableArray<const ICData*>();
   FlowGraphBuilder builder(parsed_function,
                            *ic_data_array,
                            NULL,  // NULL = not inlining.
                            Compiler::kNoOSRDeoptId);
 
   intptr_t block_id = builder.AllocateBlockId();
   TargetEntryInstr* normal_entry =
       new TargetEntryInstr(block_id,
@@ skipping 26 matching lines @@
   allocator.AllocateRegisters();
 
   if (FLAG_support_il_printer &&
       FLAG_print_flow_graph && FlowGraphPrinter::ShouldPrint(function)) {
     THR_Print("Intrinsic graph after\n");
     FlowGraphPrinter printer(*graph);
     printer.PrintBlocks();
   }
   EmitCodeFor(compiler, graph);
   return true;
+#endif
 }
 
 
 void Intrinsifier::Intrinsify(const ParsedFunction& parsed_function,
                               FlowGraphCompiler* compiler) {
   const Function& function = parsed_function.function();
   if (!CanIntrinsify(function)) {
     return;
   }
 
@@ skipping 11 matching lines @@
   switch (function.recognized_kind()) {
     ALL_INTRINSICS_NO_INTEGER_LIB_LIST(EMIT_CASE);
     default:
       break;
   }
   switch (function.recognized_kind()) {
     CORE_INTEGER_LIB_INTRINSIC_LIST(EMIT_CASE)
     default:
       break;
   }
+
+  // On DBC all graph intrinsics are handled in the same way as non-graph
+  // intrinsics.
+#if defined(TARGET_ARCH_DBC)
+  switch (function.recognized_kind()) {
+    GRAPH_INTRINSICS_LIST(EMIT_CASE)
+    default:
+      break;
+  }
+#endif
+
 #undef EMIT_INTRINSIC
 }
 
 
+#if !defined(TARGET_ARCH_DBC)
 static intptr_t CidForRepresentation(Representation rep) {
   switch (rep) {
     case kUnboxedDouble:
       return kDoubleCid;
     case kUnboxedFloat32x4:
       return kFloat32x4Cid;
     case kUnboxedUint32:
       return kDynamicCid;  // smi or mint.
     default:
       UNREACHABLE();
@@ skipping 653 matching lines @@
       builder.AddUnboxInstr(kUnboxedDouble, new Value(receiver));
   Definition* unboxed_result = builder.AddDefinition(
       new UnaryDoubleOpInstr(Token::kNEGATE,
                              new Value(unboxed_value),
                              Thread::kNoDeoptId));
   Definition* result = builder.AddDefinition(
       BoxInstr::Create(kUnboxedDouble, new Value(unboxed_result)));
   builder.AddIntrinsicReturn(new Value(result));
   return true;
 }
+#endif
 
 }  // namespace dart