Implement optimized unary ops for ia32 as well. Fix a crash in disassembler.

runtime/vm/flow_graph_compiler_ia32.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.
 
 #include "vm/globals.h"  // Needed here to get TARGET_ARCH_IA32.
 #if defined(TARGET_ARCH_IA32)
 
 #include "vm/flow_graph_compiler.h"
 
 #include "vm/ast_printer.h"
@@ skipping 47 matching lines @@
   DISALLOW_COPY_AND_ASSIGN(DeoptimizationStub);
 };
 
 
 void DeoptimizationStub::GenerateCode(FlowGraphCompiler* compiler) {
   Assembler* assem = compiler->assembler();
 #define __ assem->
   __ Comment("Deopt stub for id %d", deopt_id_);
   __ Bind(entry_label());
   for (intptr_t i = 0; i < registers_.length(); i++) {
-    __ pushl(registers_[i]);
+    if (registers_[i] != kNoRegister) {
+      __ pushl(registers_[i]);
+    }
   }
   __ movl(EAX, Immediate(Smi::RawValue(reason_)));
   __ call(&StubCode::DeoptimizeLabel());
   compiler->AddCurrentDescriptor(PcDescriptors::kOther,
                                  deopt_id_,
                                  deopt_token_index_,
                                  try_index_);
 #undef __
 }
 
@@ skipping 53 matching lines @@
                                              intptr_t cid,
                                              intptr_t token_index,
                                              intptr_t try_index) {
   pc_descriptors_list_->AddDescriptor(kind,
                                       assembler_->CodeSize(),
                                       cid,
                                       token_index,
                                       try_index);
 }
 
+
+Label* FlowGraphCompiler::AddDeoptStub(intptr_t deopt_id,
+                                       intptr_t deopt_token_index,
+                                       intptr_t try_index,
+                                       DeoptReasonId reason,
+                                       Register reg1,
+                                       Register reg2) {
+  DeoptimizationStub* stub =
+      new DeoptimizationStub(deopt_id, deopt_token_index, try_index, reason);
+  stub->Push(reg1);
+  stub->Push(reg2);
+  deopt_stubs_.Add(stub);
+  return stub->entry_label();
+}
+
+
+
 #define __ assembler_->
 
 void FlowGraphCompiler::IntrinsifyGetter() {
   // TOS: return address.
   // +1 : receiver.
   // Sequence node has one return node, its input is load field node.
   const SequenceNode& sequence_node = *parsed_function_.node_sequence();
   ASSERT(sequence_node.length() == 1);
   ASSERT(sequence_node.NodeAt(0)->IsReturnNode());
   const ReturnNode& return_node = *sequence_node.NodeAt(0)->AsReturnNode();
@@ skipping 340 matching lines @@
 
 void FlowGraphCompiler::FinalizeComments(const Code& code) {
   code.set_comments(assembler_->GetCodeComments());
 }
 
 #undef __
 
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_IA32