[V8] Introduce a QML compilation mode

[profile/ivi/qtjsbackend.git] / src / 3rdparty / v8 / src / mips / lithium-mips.cc

diff --git a/src/3rdparty/v8/src/mips/lithium-mips.cc b/src/3rdparty/v8/src/mips/lithium-mips.cc
index 6bc6d7f..eab5945 100644 (file)
--- a/src/3rdparty/v8/src/mips/lithium-mips.cc
+++ b/src/3rdparty/v8/src/mips/lithium-mips.cc
@@ -108,22 +108,17 @@ void LInstruction::PrintTo(StringStream* stream) {
 }
 
 
-template<int R, int I, int T>
-void LTemplateInstruction<R, I, T>::PrintDataTo(StringStream* stream) {
+void LInstruction::PrintDataTo(StringStream* stream) {
   stream->Add("= ");
-  for (int i = 0; i < inputs_.length(); i++) {
+  for (int i = 0; i < InputCount(); i++) {
     if (i > 0) stream->Add(" ");
-    inputs_[i]->PrintTo(stream);
+    InputAt(i)->PrintTo(stream);
   }
 }
 
 
-template<int R, int I, int T>
-void LTemplateInstruction<R, I, T>::PrintOutputOperandTo(StringStream* stream) {
-  for (int i = 0; i < results_.length(); i++) {
-    if (i > 0) stream->Add(" ");
-    results_[i]->PrintTo(stream);
-  }
+void LInstruction::PrintOutputOperandTo(StringStream* stream) {
+  if (HasResult()) result()->PrintTo(stream);
 }
 
 
@@ -732,22 +727,6 @@ LInstruction* LChunkBuilder::AssignEnvironment(LInstruction* instr) {
 }
 
 
-LInstruction* LChunkBuilder::SetInstructionPendingDeoptimizationEnvironment(
-    LInstruction* instr, int ast_id) {
-  ASSERT(instruction_pending_deoptimization_environment_ == NULL);
-  ASSERT(pending_deoptimization_ast_id_ == AstNode::kNoNumber);
-  instruction_pending_deoptimization_environment_ = instr;
-  pending_deoptimization_ast_id_ = ast_id;
-  return instr;
-}
-
-
-void LChunkBuilder::ClearInstructionPendingDeoptimizationEnvironment() {
-  instruction_pending_deoptimization_environment_ = NULL;
-  pending_deoptimization_ast_id_ = AstNode::kNoNumber;
-}
-
-
 LInstruction* LChunkBuilder::MarkAsCall(LInstruction* instr,
                                         HInstruction* hinstr,
                                         CanDeoptimize can_deoptimize) {
@@ -760,8 +739,10 @@ LInstruction* LChunkBuilder::MarkAsCall(LInstruction* instr,
   if (hinstr->HasObservableSideEffects()) {
     ASSERT(hinstr->next()->IsSimulate());
     HSimulate* sim = HSimulate::cast(hinstr->next());
-    instr = SetInstructionPendingDeoptimizationEnvironment(
-        instr, sim->ast_id());
+    ASSERT(instruction_pending_deoptimization_environment_ == NULL);
+    ASSERT(pending_deoptimization_ast_id_ == AstNode::kNoNumber);
+    instruction_pending_deoptimization_environment_ = instr;
+    pending_deoptimization_ast_id_ = sim->ast_id();
   }
 
   // If instruction does not have side-effects lazy deoptimization
@@ -779,12 +760,6 @@ LInstruction* LChunkBuilder::MarkAsCall(LInstruction* instr,
 }
 
 
-LInstruction* LChunkBuilder::MarkAsSaveDoubles(LInstruction* instr) {
-  instr->MarkAsSaveDoubles();
-  return instr;
-}
-
-
 LInstruction* LChunkBuilder::AssignPointerMap(LInstruction* instr) {
   ASSERT(!instr->HasPointerMap());
   instr->set_pointer_map(new(zone()) LPointerMap(position_));
@@ -1296,6 +1271,7 @@ LInstruction* LChunkBuilder::DoBitwise(HBitwise* instr) {
 LInstruction* LChunkBuilder::DoBitNot(HBitNot* instr) {
   ASSERT(instr->value()->representation().IsInteger32());
   ASSERT(instr->representation().IsInteger32());
+  if (instr->HasNoUses()) return NULL;
   LOperand* value = UseRegisterAtStart(instr->value());
   return DefineAsRegister(new(zone()) LBitNotI(value));
 }
@@ -1320,6 +1296,12 @@ LInstruction* LChunkBuilder::DoDiv(HDiv* instr) {
 }
 
 
+LInstruction* LChunkBuilder::DoMathFloorOfDiv(HMathFloorOfDiv* instr) {
+  UNIMPLEMENTED();
+  return NULL;
+}
+
+
 LInstruction* LChunkBuilder::DoMod(HMod* instr) {
   if (instr->representation().IsInteger32()) {
     ASSERT(instr->left()->representation().IsInteger32());
@@ -1460,7 +1442,6 @@ LInstruction* LChunkBuilder::DoRandom(HRandom* instr) {
 
 
 LInstruction* LChunkBuilder::DoCompareGeneric(HCompareGeneric* instr) {
-  Representation r = instr->GetInputRepresentation();
   ASSERT(instr->left()->representation().IsTagged());
   ASSERT(instr->right()->representation().IsTagged());
   LOperand* left = UseFixed(instr->left(), a1);
@@ -2248,9 +2229,12 @@ LInstruction* LChunkBuilder::DoSimulate(HSimulate* instr) {
   if (pending_deoptimization_ast_id_ == instr->ast_id()) {
     LInstruction* result = new(zone()) LLazyBailout;
     result = AssignEnvironment(result);
+    // Store the lazy deopt environment with the instruction if needed. Right
+    // now it is only used for LInstanceOfKnownGlobal.
     instruction_pending_deoptimization_environment_->
-        set_deoptimization_environment(result->environment());
-    ClearInstructionPendingDeoptimizationEnvironment();
+        SetDeferredLazyDeoptimizationEnvironment(result->environment());
+    instruction_pending_deoptimization_environment_ = NULL;
+    pending_deoptimization_ast_id_ = AstNode::kNoNumber;
     return result;
   }
 
@@ -2277,8 +2261,8 @@ LInstruction* LChunkBuilder::DoEnterInlined(HEnterInlined* instr) {
                                                undefined,
                                                instr->call_kind(),
                                                instr->is_construct());
-  if (instr->arguments() != NULL) {
-    inner->Bind(instr->arguments(), graph()->GetArgumentsObject());
+  if (instr->arguments_var() != NULL) {
+    inner->Bind(instr->arguments_var(), graph()->GetArgumentsObject());
   }
   current_block_->UpdateEnvironment(inner);
   chunk_->AddInlinedClosure(instr->closure());
@@ -2287,10 +2271,21 @@ LInstruction* LChunkBuilder::DoEnterInlined(HEnterInlined* instr) {
 
 
 LInstruction* LChunkBuilder::DoLeaveInlined(HLeaveInlined* instr) {
+  LInstruction* pop = NULL;
+
+  HEnvironment* env = current_block_->last_environment();
+
+  if (instr->arguments_pushed()) {
+    int argument_count = env->arguments_environment()->parameter_count();
+    pop = new(zone()) LDrop(argument_count);
+    argument_count_ -= argument_count;
+  }
+
   HEnvironment* outer = current_block_->last_environment()->
       DiscardInlined(false);
   current_block_->UpdateEnvironment(outer);
-  return NULL;
+
+  return pop;
 }