Version 3.9.0
Reduce memory use immediately after starting V8.
Stability fixes and performance improvements on all platforms.
git-svn-id: http://v8.googlecode.com/svn/trunk@10576 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
diff --git a/src/mips/lithium-mips.cc b/src/mips/lithium-mips.cc
index 2c098fe..3316c96 100644
--- a/src/mips/lithium-mips.cc
+++ b/src/mips/lithium-mips.cc
@@ -581,11 +581,6 @@
}
-LRegister* LChunkBuilder::ToOperand(Register reg) {
- return LRegister::Create(Register::ToAllocationIndex(reg));
-}
-
-
LUnallocated* LChunkBuilder::ToUnallocated(Register reg) {
return new LUnallocated(LUnallocated::FIXED_REGISTER,
Register::ToAllocationIndex(reg));
@@ -691,12 +686,6 @@
template<int I, int T>
-LInstruction* LChunkBuilder::Define(LTemplateInstruction<1, I, T>* instr) {
- return Define(instr, new LUnallocated(LUnallocated::NONE));
-}
-
-
-template<int I, int T>
LInstruction* LChunkBuilder::DefineAsRegister(
LTemplateInstruction<1, I, T>* instr) {
return Define(instr, new LUnallocated(LUnallocated::MUST_HAVE_REGISTER));
@@ -1005,14 +994,16 @@
LEnvironment* outer =
CreateEnvironment(hydrogen_env->outer(), argument_index_accumulator);
int ast_id = hydrogen_env->ast_id();
- ASSERT(ast_id != AstNode::kNoNumber);
+ ASSERT(ast_id != AstNode::kNoNumber || hydrogen_env->is_arguments_adaptor());
int value_count = hydrogen_env->length();
LEnvironment* result = new LEnvironment(hydrogen_env->closure(),
+ hydrogen_env->is_arguments_adaptor(),
ast_id,
hydrogen_env->parameter_count(),
argument_count_,
value_count,
outer);
+ int argument_index = *argument_index_accumulator;
for (int i = 0; i < value_count; ++i) {
if (hydrogen_env->is_special_index(i)) continue;
@@ -1021,13 +1012,17 @@
if (value->IsArgumentsObject()) {
op = NULL;
} else if (value->IsPushArgument()) {
- op = new LArgument((*argument_index_accumulator)++);
+ op = new LArgument(argument_index++);
} else {
op = UseAny(value);
}
result->AddValue(op, value->representation());
}
+ if (!hydrogen_env->is_arguments_adaptor()) {
+ *argument_index_accumulator = argument_index;
+ }
+
return result;
}
@@ -1627,11 +1622,11 @@
return AssignEnvironment(DefineAsRegister(res));
} else {
ASSERT(to.IsInteger32());
- LOperand* value = UseRegister(instr->value());
+ LOperand* value = UseRegisterAtStart(instr->value());
bool needs_check = !instr->value()->type().IsSmi();
LInstruction* res = NULL;
if (!needs_check) {
- res = DefineSameAsFirst(new LSmiUntag(value, needs_check));
+ res = DefineAsRegister(new LSmiUntag(value, needs_check));
} else {
LOperand* temp1 = TempRegister();
LOperand* temp2 = instr->CanTruncateToInt32() ? TempRegister()
@@ -1667,12 +1662,12 @@
} else if (from.IsInteger32()) {
if (to.IsTagged()) {
HValue* val = instr->value();
- LOperand* value = UseRegister(val);
+ LOperand* value = UseRegisterAtStart(val);
if (val->HasRange() && val->range()->IsInSmiRange()) {
- return DefineSameAsFirst(new LSmiTag(value));
+ return DefineAsRegister(new LSmiTag(value));
} else {
LNumberTagI* result = new LNumberTagI(value);
- return AssignEnvironment(AssignPointerMap(DefineSameAsFirst(result)));
+ return AssignEnvironment(AssignPointerMap(DefineAsRegister(result)));
}
} else {
ASSERT(to.IsDouble());
@@ -2247,6 +2242,7 @@
HEnvironment* outer = current_block_->last_environment();
HConstant* undefined = graph()->GetConstantUndefined();
HEnvironment* inner = outer->CopyForInlining(instr->closure(),
+ instr->arguments_count(),
instr->function(),
undefined,
instr->call_kind());
@@ -2257,7 +2253,8 @@
LInstruction* LChunkBuilder::DoLeaveInlined(HLeaveInlined* instr) {
- HEnvironment* outer = current_block_->last_environment()->outer();
+ HEnvironment* outer = current_block_->last_environment()->
+ DiscardInlined(false);
current_block_->UpdateEnvironment(outer);
return NULL;
}