fschneider@google.com
f7a97fa4d4
The number of pushed arguments needs to be accounted for. BUG=dartbug.com/22331 R=vegorov@google.com Review URL: https://codereview.chromium.org//914133002 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@43681 260f80e4-7a28-3924-810f-c04153c831b5
694 lines
25 KiB
C++
694 lines
25 KiB
C++
// Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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// Class for intrinsifying functions.
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#include "vm/assembler.h"
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#include "vm/intrinsifier.h"
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#include "vm/flags.h"
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#include "vm/object.h"
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#include "vm/symbols.h"
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#include "vm/flow_graph.h"
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#include "vm/flow_graph_compiler.h"
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#include "vm/flow_graph_allocator.h"
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#include "vm/flow_graph_builder.h"
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#include "vm/il_printer.h"
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#include "vm/intermediate_language.h"
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#include "vm/parser.h"
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namespace dart {
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DEFINE_FLAG(bool, intrinsify, true, "Instrinsify when possible");
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DECLARE_FLAG(bool, throw_on_javascript_int_overflow);
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DECLARE_FLAG(bool, code_comments);
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DECLARE_FLAG(bool, print_flow_graph);
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DECLARE_FLAG(bool, print_flow_graph_optimized);
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DECLARE_FLAG(bool, enable_type_checks);
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bool Intrinsifier::CanIntrinsify(const Function& function) {
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if (!FLAG_intrinsify) return false;
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if (function.IsClosureFunction()) return false;
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// Can occur because of compile-all flag.
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if (function.is_external()) return false;
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return function.is_intrinsic();
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}
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void Intrinsifier::InitializeState() {
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Isolate* isolate = Isolate::Current();
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Library& lib = Library::Handle(isolate);
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Class& cls = Class::Handle(isolate);
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Function& func = Function::Handle(isolate);
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String& str = String::Handle(isolate);
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Error& error = Error::Handle(isolate);
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#define SETUP_FUNCTION(class_name, function_name, destination, fp) \
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if (strcmp(#class_name, "::") == 0) { \
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str = String::New(#function_name); \
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func = lib.LookupFunctionAllowPrivate(str); \
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} else { \
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str = String::New(#class_name); \
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cls = lib.LookupClassAllowPrivate(str); \
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ASSERT(!cls.IsNull()); \
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error = cls.EnsureIsFinalized(isolate); \
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if (!error.IsNull()) { \
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OS::PrintErr("%s\n", error.ToErrorCString()); \
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} \
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ASSERT(error.IsNull()); \
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if (#function_name[0] == '.') { \
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str = String::New(#class_name#function_name); \
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} else { \
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str = String::New(#function_name); \
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} \
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func = cls.LookupFunctionAllowPrivate(str); \
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} \
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ASSERT(!func.IsNull()); \
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func.set_is_intrinsic(true);
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// Set up all core lib functions that can be intrisified.
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lib = Library::CoreLibrary();
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ASSERT(!lib.IsNull());
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CORE_LIB_INTRINSIC_LIST(SETUP_FUNCTION);
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CORE_INTEGER_LIB_INTRINSIC_LIST(SETUP_FUNCTION);
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GRAPH_CORE_INTRINSICS_LIST(SETUP_FUNCTION);
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// Set up all math lib functions that can be intrisified.
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lib = Library::MathLibrary();
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ASSERT(!lib.IsNull());
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MATH_LIB_INTRINSIC_LIST(SETUP_FUNCTION);
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// Set up all dart:typed_data lib functions that can be intrisified.
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lib = Library::TypedDataLibrary();
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ASSERT(!lib.IsNull());
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TYPED_DATA_LIB_INTRINSIC_LIST(SETUP_FUNCTION);
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GRAPH_TYPED_DATA_INTRINSICS_LIST(SETUP_FUNCTION);
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// Setup all dart:profiler lib functions that can be intrinsified.
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lib = Library::ProfilerLibrary();
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ASSERT(!lib.IsNull());
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PROFILER_LIB_INTRINSIC_LIST(SETUP_FUNCTION);
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#undef SETUP_FUNCTION
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}
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static void EmitCodeFor(FlowGraphCompiler* compiler,
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FlowGraph* graph) {
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// The FlowGraph here is constructed by the intrinsics builder methods, and
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// is different from compiler->flow_graph(), the original method's flow graph.
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compiler->assembler()->Comment("Graph intrinsic");
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for (intptr_t i = 0; i < graph->reverse_postorder().length(); i++) {
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BlockEntryInstr* block = graph->reverse_postorder()[i];
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if (block->IsGraphEntry()) continue; // No code for graph entry needed.
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if (block->HasParallelMove()) {
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compiler->parallel_move_resolver()->EmitNativeCode(
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block->parallel_move());
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}
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for (ForwardInstructionIterator it(block); !it.Done(); it.Advance()) {
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Instruction* instr = it.Current();
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if (FLAG_code_comments) compiler->EmitComment(instr);
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if (instr->IsParallelMove()) {
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compiler->parallel_move_resolver()->EmitNativeCode(
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instr->AsParallelMove());
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} else {
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ASSERT(instr->locs() != NULL);
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// Calls are not supported in intrinsics code.
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ASSERT(!instr->locs()->always_calls());
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instr->EmitNativeCode(compiler);
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}
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}
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}
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}
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bool Intrinsifier::GraphIntrinsify(const ParsedFunction& parsed_function,
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FlowGraphCompiler* compiler) {
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ZoneGrowableArray<const ICData*>* ic_data_array =
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new ZoneGrowableArray<const ICData*>();
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FlowGraphBuilder builder(parsed_function,
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*ic_data_array,
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NULL, // NULL = not inlining.
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Isolate::kNoDeoptId); // No OSR id.
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intptr_t block_id = builder.AllocateBlockId();
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TargetEntryInstr* normal_entry =
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new TargetEntryInstr(block_id,
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CatchClauseNode::kInvalidTryIndex);
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GraphEntryInstr* graph_entry = new GraphEntryInstr(
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parsed_function, normal_entry, Isolate::kNoDeoptId); // No OSR id.
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FlowGraph* graph = new FlowGraph(parsed_function, graph_entry, block_id);
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const Function& function = parsed_function.function();
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switch (function.recognized_kind()) {
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#define EMIT_CASE(class_name, function_name, enum_name, fp) \
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case MethodRecognizer::k##enum_name: \
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CHECK_FINGERPRINT3(function, class_name, function_name, enum_name, fp); \
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if (!Build_##enum_name(graph)) return false; \
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break;
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GRAPH_INTRINSICS_LIST(EMIT_CASE);
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default:
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return false;
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#undef EMIT_CASE
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}
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if (FLAG_print_flow_graph && FlowGraphPrinter::ShouldPrint(function)) {
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OS::Print("Intrinsic graph before\n");
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FlowGraphPrinter printer(*graph);
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printer.PrintBlocks();
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}
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// Perform register allocation on the SSA graph.
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FlowGraphAllocator allocator(*graph, true); // Intrinsic mode.
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allocator.AllocateRegisters();
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if (FLAG_print_flow_graph && FlowGraphPrinter::ShouldPrint(function)) {
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OS::Print("Intrinsic graph after\n");
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FlowGraphPrinter printer(*graph);
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printer.PrintBlocks();
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}
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EmitCodeFor(compiler, graph);
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return true;
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}
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void Intrinsifier::Intrinsify(const ParsedFunction& parsed_function,
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FlowGraphCompiler* compiler) {
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const Function& function = parsed_function.function();
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if (!CanIntrinsify(function)) {
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return;
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}
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ASSERT(!compiler->flow_graph().IsCompiledForOsr());
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if (GraphIntrinsify(parsed_function, compiler)) {
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return;
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}
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#define EMIT_CASE(class_name, function_name, enum_name, fp) \
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case MethodRecognizer::k##enum_name: \
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CHECK_FINGERPRINT3(function, class_name, function_name, enum_name, fp); \
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compiler->assembler()->Comment("Intrinsic"); \
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enum_name(compiler->assembler()); \
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break;
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if (FLAG_throw_on_javascript_int_overflow && (Smi::kBits >= 32)) {
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// Integer intrinsics are in the core library, but we don't want to
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// intrinsify when Smi > 32 bits if we are looking for javascript integer
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// overflow.
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switch (function.recognized_kind()) {
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ALL_INTRINSICS_NO_INTEGER_LIB_LIST(EMIT_CASE);
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default:
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break;
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}
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} else {
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switch (function.recognized_kind()) {
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ALL_INTRINSICS_LIST(EMIT_CASE);
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default:
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break;
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}
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}
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#undef EMIT_INTRINSIC
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}
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class BlockBuilder : public ValueObject {
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public:
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BlockBuilder(FlowGraph* flow_graph, TargetEntryInstr* entry)
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: flow_graph_(flow_graph), entry_(entry), current_(entry) { }
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Definition* AddToInitialDefinitions(Definition* def) {
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def->set_ssa_temp_index(flow_graph_->alloc_ssa_temp_index());
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flow_graph_->AddToInitialDefinitions(def);
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return def;
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}
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Definition* AddDefinition(Definition* def) {
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def->set_ssa_temp_index(flow_graph_->alloc_ssa_temp_index());
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current_ = current_->AppendInstruction(def);
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return def;
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}
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Instruction* AddInstruction(Instruction* instr) {
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current_ = current_->AppendInstruction(instr);
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return instr;
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}
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void AddIntrinsicReturn(Value* value) {
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ReturnInstr* instr = new ReturnInstr(TokenPos(), value);
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AddInstruction(instr);
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entry_->set_last_instruction(instr);
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}
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Definition* AddParameter(intptr_t index) {
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intptr_t adjustment = Intrinsifier::ParameterSlotFromSp();
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return AddToInitialDefinitions(
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new ParameterInstr(adjustment + index,
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flow_graph_->graph_entry(),
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SPREG));
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}
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intptr_t TokenPos() {
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return flow_graph_->function().token_pos();
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}
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Definition* AddNullDefinition() {
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return AddDefinition(
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new ConstantInstr(Object::ZoneHandle(Object::null())));
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}
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private:
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FlowGraph* flow_graph_;
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BlockEntryInstr* entry_;
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Instruction* current_;
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};
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static void PrepareIndexedOp(BlockBuilder* builder,
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Definition* array,
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Definition* index,
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intptr_t length_offset) {
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intptr_t token_pos = builder->TokenPos();
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builder->AddInstruction(
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new CheckSmiInstr(new Value(index),
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Isolate::kNoDeoptId,
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token_pos));
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Definition* length = builder->AddDefinition(
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new LoadFieldInstr(new Value(array),
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length_offset,
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Type::ZoneHandle(Type::SmiType()),
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true)); // immutable
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builder->AddInstruction(
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new CheckArrayBoundInstr(new Value(length),
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new Value(index),
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Isolate::kNoDeoptId));
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}
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bool Intrinsifier::Build_ObjectArrayGetIndexed(FlowGraph* flow_graph) {
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GraphEntryInstr* graph_entry = flow_graph->graph_entry();
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TargetEntryInstr* normal_entry = graph_entry->normal_entry();
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BlockBuilder builder(flow_graph, normal_entry);
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Definition* index = builder.AddParameter(1);
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Definition* array = builder.AddParameter(2);
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PrepareIndexedOp(&builder, array, index, Array::length_offset());
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Definition* result = builder.AddDefinition(
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new LoadIndexedInstr(new Value(array),
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new Value(index),
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Instance::ElementSizeFor(kArrayCid), // index scale
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kArrayCid,
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Isolate::kNoDeoptId,
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builder.TokenPos()));
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builder.AddIntrinsicReturn(new Value(result));
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return true;
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}
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bool Intrinsifier::Build_ImmutableArrayGetIndexed(FlowGraph* flow_graph) {
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return Build_ObjectArrayGetIndexed(flow_graph);
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}
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bool Intrinsifier::Build_Uint8ArrayGetIndexed(FlowGraph* flow_graph) {
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GraphEntryInstr* graph_entry = flow_graph->graph_entry();
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TargetEntryInstr* normal_entry = graph_entry->normal_entry();
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BlockBuilder builder(flow_graph, normal_entry);
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Definition* index = builder.AddParameter(1);
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Definition* array = builder.AddParameter(2);
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PrepareIndexedOp(&builder, array, index, TypedData::length_offset());
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Definition* result = builder.AddDefinition(
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new LoadIndexedInstr(new Value(array),
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new Value(index),
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1, // index scale
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kTypedDataUint8ArrayCid,
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Isolate::kNoDeoptId,
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builder.TokenPos()));
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builder.AddIntrinsicReturn(new Value(result));
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return true;
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}
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bool Intrinsifier::Build_ExternalUint8ArrayGetIndexed(FlowGraph* flow_graph) {
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GraphEntryInstr* graph_entry = flow_graph->graph_entry();
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TargetEntryInstr* normal_entry = graph_entry->normal_entry();
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BlockBuilder builder(flow_graph, normal_entry);
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Definition* index = builder.AddParameter(1);
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Definition* array = builder.AddParameter(2);
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PrepareIndexedOp(&builder, array, index, ExternalTypedData::length_offset());
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Definition* elements = builder.AddDefinition(
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new LoadUntaggedInstr(new Value(array),
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ExternalTypedData::data_offset()));
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Definition* result = builder.AddDefinition(
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new LoadIndexedInstr(new Value(elements),
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new Value(index),
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1, // index scale
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kExternalTypedDataUint8ArrayCid,
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Isolate::kNoDeoptId,
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builder.TokenPos()));
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builder.AddIntrinsicReturn(new Value(result));
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return true;
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}
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bool Intrinsifier::Build_Uint8ArraySetIndexed(FlowGraph* flow_graph) {
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GraphEntryInstr* graph_entry = flow_graph->graph_entry();
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TargetEntryInstr* normal_entry = graph_entry->normal_entry();
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BlockBuilder builder(flow_graph, normal_entry);
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Definition* value = builder.AddParameter(1);
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Definition* index = builder.AddParameter(2);
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Definition* array = builder.AddParameter(3);
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PrepareIndexedOp(&builder, array, index, TypedData::length_offset());
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builder.AddInstruction(
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new CheckSmiInstr(new Value(value),
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Isolate::kNoDeoptId,
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builder.TokenPos()));
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builder.AddInstruction(
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new StoreIndexedInstr(new Value(array),
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new Value(index),
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new Value(value),
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kNoStoreBarrier,
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1, // index scale
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kTypedDataUint8ArrayCid,
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Isolate::kNoDeoptId,
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builder.TokenPos()));
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// Return null.
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Definition* null_def = builder.AddNullDefinition();
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builder.AddIntrinsicReturn(new Value(null_def));
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return true;
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}
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bool Intrinsifier::Build_ExternalUint8ArraySetIndexed(FlowGraph* flow_graph) {
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GraphEntryInstr* graph_entry = flow_graph->graph_entry();
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TargetEntryInstr* normal_entry = graph_entry->normal_entry();
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BlockBuilder builder(flow_graph, normal_entry);
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Definition* value = builder.AddParameter(1);
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Definition* index = builder.AddParameter(2);
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Definition* array = builder.AddParameter(3);
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PrepareIndexedOp(&builder, array, index, ExternalTypedData::length_offset());
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builder.AddInstruction(
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new CheckSmiInstr(new Value(value),
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Isolate::kNoDeoptId,
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builder.TokenPos()));
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Definition* elements = builder.AddDefinition(
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new LoadUntaggedInstr(new Value(array),
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ExternalTypedData::data_offset()));
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builder.AddInstruction(
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new StoreIndexedInstr(new Value(elements),
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new Value(index),
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new Value(value),
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kNoStoreBarrier,
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1, // index scale
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kExternalTypedDataUint8ArrayCid,
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Isolate::kNoDeoptId,
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builder.TokenPos()));
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// Return null.
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Definition* null_def = builder.AddNullDefinition();
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builder.AddIntrinsicReturn(new Value(null_def));
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return true;
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}
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bool Intrinsifier::Build_Float64ArraySetIndexed(FlowGraph* flow_graph) {
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if (!FlowGraphCompiler::SupportsUnboxedDoubles()) return false;
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GraphEntryInstr* graph_entry = flow_graph->graph_entry();
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TargetEntryInstr* normal_entry = graph_entry->normal_entry();
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BlockBuilder builder(flow_graph, normal_entry);
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Definition* value = builder.AddParameter(1);
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Definition* index = builder.AddParameter(2);
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Definition* array = builder.AddParameter(3);
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PrepareIndexedOp(&builder, array, index, TypedData::length_offset());
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const ICData& value_check = ICData::ZoneHandle(ICData::New(
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flow_graph->function(),
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String::Handle(flow_graph->function().name()),
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Object::empty_array(), // Dummy args. descr.
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Isolate::kNoDeoptId,
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1));
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value_check.AddReceiverCheck(kDoubleCid, flow_graph->function());
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builder.AddInstruction(
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new CheckClassInstr(new Value(value),
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Isolate::kNoDeoptId,
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value_check,
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builder.TokenPos()));
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Definition* double_value = builder.AddDefinition(
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UnboxInstr::Create(kUnboxedDouble,
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new Value(value),
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Isolate::kNoDeoptId));
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// Manually adjust reaching type because there is no type propagation
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// when building intrinsics.
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double_value->AsUnbox()->value()->SetReachingType(
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ZoneCompileType::Wrap(CompileType::FromCid(kDoubleCid)));
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builder.AddInstruction(
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new StoreIndexedInstr(new Value(array),
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new Value(index),
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new Value(double_value),
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kNoStoreBarrier,
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8, // index scale
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kTypedDataFloat64ArrayCid,
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Isolate::kNoDeoptId,
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builder.TokenPos()));
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// Return null.
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Definition* null_def = builder.AddNullDefinition();
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builder.AddIntrinsicReturn(new Value(null_def));
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return true;
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}
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bool Intrinsifier::Build_Float64ArrayGetIndexed(FlowGraph* flow_graph) {
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if (!FlowGraphCompiler::SupportsUnboxedDoubles()) return false;
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GraphEntryInstr* graph_entry = flow_graph->graph_entry();
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TargetEntryInstr* normal_entry = graph_entry->normal_entry();
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BlockBuilder builder(flow_graph, normal_entry);
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Definition* index = builder.AddParameter(1);
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Definition* array = builder.AddParameter(2);
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PrepareIndexedOp(&builder, array, index, TypedData::length_offset());
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Definition* unboxed_value = builder.AddDefinition(
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new LoadIndexedInstr(new Value(array),
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new Value(index),
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8, // index scale
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kTypedDataFloat64ArrayCid,
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Isolate::kNoDeoptId,
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builder.TokenPos()));
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Definition* result = builder.AddDefinition(
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BoxInstr::Create(kUnboxedDouble, new Value(unboxed_value)));
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builder.AddIntrinsicReturn(new Value(result));
|
|
return true;
|
|
}
|
|
|
|
|
|
static bool BuildLoadField(FlowGraph* flow_graph, intptr_t offset) {
|
|
GraphEntryInstr* graph_entry = flow_graph->graph_entry();
|
|
TargetEntryInstr* normal_entry = graph_entry->normal_entry();
|
|
BlockBuilder builder(flow_graph, normal_entry);
|
|
|
|
Definition* array = builder.AddParameter(1);
|
|
|
|
Definition* length = builder.AddDefinition(
|
|
new LoadFieldInstr(new Value(array),
|
|
offset,
|
|
Type::ZoneHandle(),
|
|
builder.TokenPos()));
|
|
builder.AddIntrinsicReturn(new Value(length));
|
|
return true;
|
|
}
|
|
|
|
|
|
bool Intrinsifier::Build_ObjectArrayLength(FlowGraph* flow_graph) {
|
|
return BuildLoadField(flow_graph, Array::length_offset());
|
|
}
|
|
|
|
|
|
bool Intrinsifier::Build_ImmutableArrayLength(FlowGraph* flow_graph) {
|
|
return BuildLoadField(flow_graph, Array::length_offset());
|
|
}
|
|
|
|
|
|
bool Intrinsifier::Build_GrowableArrayLength(FlowGraph* flow_graph) {
|
|
return BuildLoadField(flow_graph, GrowableObjectArray::length_offset());
|
|
}
|
|
|
|
|
|
bool Intrinsifier::Build_StringBaseLength(FlowGraph* flow_graph) {
|
|
return BuildLoadField(flow_graph, String::length_offset());
|
|
}
|
|
|
|
|
|
bool Intrinsifier::Build_TypedDataLength(FlowGraph* flow_graph) {
|
|
return BuildLoadField(flow_graph, TypedData::length_offset());
|
|
}
|
|
|
|
|
|
bool Intrinsifier::Build_GrowableArrayCapacity(FlowGraph* flow_graph) {
|
|
GraphEntryInstr* graph_entry = flow_graph->graph_entry();
|
|
TargetEntryInstr* normal_entry = graph_entry->normal_entry();
|
|
BlockBuilder builder(flow_graph, normal_entry);
|
|
|
|
Definition* array = builder.AddParameter(1);
|
|
|
|
Definition* backing_store = builder.AddDefinition(
|
|
new LoadFieldInstr(new Value(array),
|
|
GrowableObjectArray::data_offset(),
|
|
Type::ZoneHandle(),
|
|
builder.TokenPos()));
|
|
Definition* capacity = builder.AddDefinition(
|
|
new LoadFieldInstr(new Value(backing_store),
|
|
Array::length_offset(),
|
|
Type::ZoneHandle(),
|
|
builder.TokenPos()));
|
|
builder.AddIntrinsicReturn(new Value(capacity));
|
|
return true;
|
|
}
|
|
|
|
|
|
bool Intrinsifier::Build_GrowableArrayGetIndexed(FlowGraph* flow_graph) {
|
|
GraphEntryInstr* graph_entry = flow_graph->graph_entry();
|
|
TargetEntryInstr* normal_entry = graph_entry->normal_entry();
|
|
BlockBuilder builder(flow_graph, normal_entry);
|
|
|
|
Definition* index = builder.AddParameter(1);
|
|
Definition* growable_array = builder.AddParameter(2);
|
|
|
|
PrepareIndexedOp(
|
|
&builder, growable_array, index, GrowableObjectArray::length_offset());
|
|
|
|
Definition* backing_store = builder.AddDefinition(
|
|
new LoadFieldInstr(new Value(growable_array),
|
|
GrowableObjectArray::data_offset(),
|
|
Type::ZoneHandle(),
|
|
builder.TokenPos()));
|
|
Definition* result = builder.AddDefinition(
|
|
new LoadIndexedInstr(new Value(backing_store),
|
|
new Value(index),
|
|
Instance::ElementSizeFor(kArrayCid), // index scale
|
|
kArrayCid,
|
|
Isolate::kNoDeoptId,
|
|
builder.TokenPos()));
|
|
builder.AddIntrinsicReturn(new Value(result));
|
|
return true;
|
|
}
|
|
|
|
|
|
bool Intrinsifier::Build_GrowableArraySetIndexed(FlowGraph* flow_graph) {
|
|
if (Isolate::Current()->TypeChecksEnabled()) {
|
|
return false;
|
|
}
|
|
|
|
GraphEntryInstr* graph_entry = flow_graph->graph_entry();
|
|
TargetEntryInstr* normal_entry = graph_entry->normal_entry();
|
|
BlockBuilder builder(flow_graph, normal_entry);
|
|
|
|
Definition* value = builder.AddParameter(1);
|
|
Definition* index = builder.AddParameter(2);
|
|
Definition* array = builder.AddParameter(3);
|
|
|
|
PrepareIndexedOp(
|
|
&builder, array, index, GrowableObjectArray::length_offset());
|
|
|
|
Definition* backing_store = builder.AddDefinition(
|
|
new LoadFieldInstr(new Value(array),
|
|
GrowableObjectArray::data_offset(),
|
|
Type::ZoneHandle(),
|
|
builder.TokenPos()));
|
|
|
|
builder.AddInstruction(
|
|
new StoreIndexedInstr(new Value(backing_store),
|
|
new Value(index),
|
|
new Value(value),
|
|
kEmitStoreBarrier,
|
|
Instance::ElementSizeFor(kArrayCid), // index scale
|
|
kArrayCid,
|
|
Isolate::kNoDeoptId,
|
|
builder.TokenPos()));
|
|
// Return null.
|
|
Definition* null_def = builder.AddNullDefinition();
|
|
builder.AddIntrinsicReturn(new Value(null_def));
|
|
return true;
|
|
}
|
|
|
|
|
|
bool Intrinsifier::Build_GrowableArraySetData(FlowGraph* flow_graph) {
|
|
GraphEntryInstr* graph_entry = flow_graph->graph_entry();
|
|
TargetEntryInstr* normal_entry = graph_entry->normal_entry();
|
|
BlockBuilder builder(flow_graph, normal_entry);
|
|
|
|
Definition* data = builder.AddParameter(1);
|
|
Definition* growable_array = builder.AddParameter(2);
|
|
|
|
const ICData& value_check = ICData::ZoneHandle(ICData::New(
|
|
flow_graph->function(),
|
|
String::Handle(flow_graph->function().name()),
|
|
Object::empty_array(), // Dummy args. descr.
|
|
Isolate::kNoDeoptId,
|
|
1));
|
|
value_check.AddReceiverCheck(kArrayCid, flow_graph->function());
|
|
builder.AddInstruction(
|
|
new CheckClassInstr(new Value(data),
|
|
Isolate::kNoDeoptId,
|
|
value_check,
|
|
builder.TokenPos()));
|
|
|
|
builder.AddInstruction(
|
|
new StoreInstanceFieldInstr(GrowableObjectArray::data_offset(),
|
|
new Value(growable_array),
|
|
new Value(data),
|
|
kEmitStoreBarrier,
|
|
builder.TokenPos()));
|
|
// Return null.
|
|
Definition* null_def = builder.AddNullDefinition();
|
|
builder.AddIntrinsicReturn(new Value(null_def));
|
|
return true;
|
|
}
|
|
|
|
|
|
bool Intrinsifier::Build_GrowableArraySetLength(FlowGraph* flow_graph) {
|
|
GraphEntryInstr* graph_entry = flow_graph->graph_entry();
|
|
TargetEntryInstr* normal_entry = graph_entry->normal_entry();
|
|
BlockBuilder builder(flow_graph, normal_entry);
|
|
|
|
Definition* length = builder.AddParameter(1);
|
|
Definition* growable_array = builder.AddParameter(2);
|
|
|
|
builder.AddInstruction(
|
|
new CheckSmiInstr(new Value(length),
|
|
Isolate::kNoDeoptId,
|
|
builder.TokenPos()));
|
|
builder.AddInstruction(
|
|
new StoreInstanceFieldInstr(GrowableObjectArray::length_offset(),
|
|
new Value(growable_array),
|
|
new Value(length),
|
|
kNoStoreBarrier,
|
|
builder.TokenPos()));
|
|
Definition* null_def = builder.AddNullDefinition();
|
|
builder.AddIntrinsicReturn(new Value(null_def));
|
|
return true;
|
|
}
|
|
|
|
} // namespace dart
|