Enable stub generation using Hydrogen/Lithium (again)

src/arm/lithium-arm.cc

Index: src/arm/lithium-arm.cc
diff --git a/src/arm/lithium-arm.cc b/src/arm/lithium-arm.cc
index 1d5f0ec4f7095256eee63ba2e1b8dbf379e26b5a..45eef31257275334344daf53d1b8eca41b354475 100644
--- a/src/arm/lithium-arm.cc
+++ b/src/arm/lithium-arm.cc
@@ -42,10 +42,10 @@ LITHIUM_CONCRETE_INSTRUCTION_LIST(DEFINE_COMPILE)
 #undef DEFINE_COMPILE
 
 LOsrEntry::LOsrEntry() {
-  for (int i = 0; i < Register::kNumAllocatableRegisters; ++i) {
+  for (int i = 0; i < Register::NumAllocatableRegisters(); ++i) {
     register_spills_[i] = NULL;
   }
-  for (int i = 0; i < DoubleRegister::kNumAllocatableRegisters; ++i) {
+  for (int i = 0; i < DoubleRegister::NumAllocatableRegisters(); ++i) {
     double_register_spills_[i] = NULL;
   }
 }
@@ -591,6 +591,7 @@ LInstruction* LChunkBuilder::AssignEnvironment(LInstruction* instr) {
 LInstruction* LChunkBuilder::MarkAsCall(LInstruction* instr,
                                         HInstruction* hinstr,
                                         CanDeoptimize can_deoptimize) {
+  info()->MarkAsNonDeferredCalling();
 #ifdef DEBUG
   instr->VerifyCall();
 #endif
@@ -1629,6 +1630,7 @@ LInstruction* LChunkBuilder::DoChange(HChange* instr) {
   Representation to = instr->to();
   if (from.IsTagged()) {
     if (to.IsDouble()) {
+      info()->MarkAsDeferredCalling();
       LOperand* value = UseRegister(instr->value());
       LNumberUntagD* res = new(zone()) LNumberUntagD(value);
       return AssignEnvironment(DefineAsRegister(res));
@@ -1653,6 +1655,7 @@ LInstruction* LChunkBuilder::DoChange(HChange* instr) {
     }
   } else if (from.IsDouble()) {
     if (to.IsTagged()) {
+      info()->MarkAsDeferredCalling();
       LOperand* value = UseRegister(instr->value());
       LOperand* temp1 = TempRegister();
       LOperand* temp2 = TempRegister();
@@ -1672,6 +1675,7 @@ LInstruction* LChunkBuilder::DoChange(HChange* instr) {
       return AssignEnvironment(DefineAsRegister(res));
     }
   } else if (from.IsInteger32()) {
+    info()->MarkAsDeferredCalling();
     if (to.IsTagged()) {
       HValue* val = instr->value();
       LOperand* value = UseRegisterAtStart(val);
@@ -2127,8 +2131,27 @@ LInstruction* LChunkBuilder::DoOsrEntry(HOsrEntry* instr) {
 
 
 LInstruction* LChunkBuilder::DoParameter(HParameter* instr) {
-  int spill_index = chunk()->GetParameterStackSlot(instr->index());
-  return DefineAsSpilled(new(zone()) LParameter, spill_index);
+  LParameter* result = new(zone()) LParameter;
+  switch (instr->kind()) {
+    case FUNCTION_PARAMETER: {
+      int spill_index = chunk()->GetParameterStackSlot(instr->index());
+      return DefineAsSpilled(new(zone()) LParameter, spill_index);
+    }
+    case KEYED_LOAD_IC_PARAMETER: {
+      if (instr->index() == 0) return DefineFixed(result, r1);
+      if (instr->index() == 1) return DefineFixed(result, r0);
+      UNREACHABLE();
+      break;
+    }
+    case KEYED_STORE_IC_PARAMETER:

[Jakob Kummerow, 2012/11/19 12:36:00]

remove for now

[danno, 2012/11/26 17:16:18]

Done.

+      if (instr->index() == 0) return DefineFixed(result, r2);
+      if (instr->index() == 1) return DefineFixed(result, r1);
+      if (instr->index() == 2) return DefineFixed(result, r0);
+      break;
+    default:
+      UNREACHABLE();
+  }
+  return NULL;
 }