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[vm/compiler] Make flow graph construction independent of --target_unknown_cpu
Move optimized handling of Double.truncateToDouble, floorToDouble, ceilToDouble, floor and ceil from flow graph construction to the canonicalization pass. This is needed in order to maintain stable flow graphs between app-jit snapshot training (which is performed with --target_unknown_cpu) and running from app-jit snapshot without --target_unknown_cpu. TEST=ci (vm-appjit-*) Fixes https://github.com/dart-lang/sdk/issues/56018 Change-Id: I7e3e4ce917984f52db239506ea3de0c55af00567 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/372140 Reviewed-by: Slava Egorov <vegorov@google.com> Commit-Queue: Alexander Markov <alexmarkov@google.com>
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@ -1321,13 +1321,6 @@ void main(int argc, char** argv) {
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vm_options.AddArgument("--link_natives_lazily");
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vm_options.AddArgument("--link_natives_lazily");
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#endif
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#endif
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}
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}
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if (app_snapshot != nullptr && app_snapshot->IsJIT()) {
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// App-jit snapshot was created with this flag, it also has to be added
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// when running the snapshot when it is depended upon by the graph builder
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// (see e.g. FlowGraphBuilder::IsRecognizedMethodForFlowGraph).
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// TODO(dartbug.com/56018) Better fix leaving less performance on the table.
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vm_options.AddArgument("--target-unknown-cpu");
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}
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// If we need to write an app-jit snapshot or a depfile, then add an exit
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// If we need to write an app-jit snapshot or a depfile, then add an exit
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// hook that writes the snapshot and/or depfile as appropriate.
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// hook that writes the snapshot and/or depfile as appropriate.
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@ -7260,6 +7260,67 @@ const RuntimeEntry& InvokeMathCFunctionInstr::TargetFunction() const {
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return kLibcPowRuntimeEntry;
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return kLibcPowRuntimeEntry;
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}
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}
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Definition* InvokeMathCFunctionInstr::Canonicalize(FlowGraph* flow_graph) {
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if (!CompilerState::Current().is_aot() &&
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TargetCPUFeatures::double_truncate_round_supported()) {
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Token::Kind op_kind = Token::kILLEGAL;
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switch (recognized_kind_) {
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case MethodRecognizer::kDoubleTruncateToDouble:
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op_kind = Token::kTRUNCATE;
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break;
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case MethodRecognizer::kDoubleFloorToDouble:
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op_kind = Token::kFLOOR;
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break;
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case MethodRecognizer::kDoubleCeilToDouble:
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op_kind = Token::kCEILING;
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break;
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default:
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return this;
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}
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auto* instr = new UnaryDoubleOpInstr(
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op_kind, new Value(InputAt(0)->definition()), GetDeoptId(),
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Instruction::kNotSpeculative, kUnboxedDouble);
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flow_graph->InsertBefore(this, instr, env(), FlowGraph::kValue);
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return instr;
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}
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return this;
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}
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bool DoubleToIntegerInstr::SupportsFloorAndCeil() {
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#if defined(TARGET_ARCH_X64)
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return CompilerState::Current().is_aot() || FLAG_target_unknown_cpu;
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#elif defined(TARGET_ARCH_ARM64) || defined(TARGET_ARCH_RISCV32) || \
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defined(TARGET_ARCH_RISCV64)
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return true;
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#else
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return false;
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#endif
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}
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Definition* DoubleToIntegerInstr::Canonicalize(FlowGraph* flow_graph) {
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if (SupportsFloorAndCeil() &&
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(recognized_kind() == MethodRecognizer::kDoubleToInteger)) {
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if (auto* arg = value()->definition()->AsInvokeMathCFunction()) {
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switch (arg->recognized_kind()) {
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case MethodRecognizer::kDoubleFloorToDouble:
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// x.floorToDouble().toInt() => x.floor()
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recognized_kind_ = MethodRecognizer::kDoubleFloorToInt;
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value()->BindTo(arg->InputAt(0)->definition());
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break;
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case MethodRecognizer::kDoubleCeilToDouble:
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// x.ceilToDouble().toInt() => x.ceil()
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recognized_kind_ = MethodRecognizer::kDoubleCeilToInt;
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value()->BindTo(arg->InputAt(0)->definition());
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break;
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default:
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break;
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}
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}
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}
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return this;
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}
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TruncDivModInstr::TruncDivModInstr(Value* lhs, Value* rhs, intptr_t deopt_id)
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TruncDivModInstr::TruncDivModInstr(Value* lhs, Value* rhs, intptr_t deopt_id)
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: TemplateDefinition(deopt_id) {
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: TemplateDefinition(deopt_id) {
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SetInputAt(0, lhs);
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SetInputAt(0, lhs);
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@ -10084,7 +10084,9 @@ class DoubleToIntegerInstr : public TemplateDefinition<1, Throws, Pure> {
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return other.AsDoubleToInteger()->recognized_kind() == recognized_kind();
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return other.AsDoubleToInteger()->recognized_kind() == recognized_kind();
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}
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}
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#define FIELD_LIST(F) F(const MethodRecognizer::Kind, recognized_kind_)
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virtual Definition* Canonicalize(FlowGraph* flow_graph);
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#define FIELD_LIST(F) F(MethodRecognizer::Kind, recognized_kind_)
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DECLARE_INSTRUCTION_SERIALIZABLE_FIELDS(DoubleToIntegerInstr,
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DECLARE_INSTRUCTION_SERIALIZABLE_FIELDS(DoubleToIntegerInstr,
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TemplateDefinition,
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TemplateDefinition,
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@ -10092,6 +10094,8 @@ class DoubleToIntegerInstr : public TemplateDefinition<1, Throws, Pure> {
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#undef FIELD_LIST
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#undef FIELD_LIST
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private:
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private:
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static bool SupportsFloorAndCeil();
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DISALLOW_COPY_AND_ASSIGN(DoubleToIntegerInstr);
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DISALLOW_COPY_AND_ASSIGN(DoubleToIntegerInstr);
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};
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};
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@ -10284,6 +10288,8 @@ class InvokeMathCFunctionInstr : public VariadicDefinition {
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return other_invoke->recognized_kind() == recognized_kind();
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return other_invoke->recognized_kind() == recognized_kind();
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}
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}
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virtual Definition* Canonicalize(FlowGraph* flow_graph);
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virtual bool MayThrow() const { return false; }
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virtual bool MayThrow() const { return false; }
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static constexpr intptr_t kSavedSpTempIndex = 0;
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static constexpr intptr_t kSavedSpTempIndex = 0;
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@ -5578,6 +5578,7 @@ LocationSummary* DoubleToIntegerInstr::MakeLocationSummary(Zone* zone,
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}
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}
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void DoubleToIntegerInstr::EmitNativeCode(FlowGraphCompiler* compiler) {
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void DoubleToIntegerInstr::EmitNativeCode(FlowGraphCompiler* compiler) {
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ASSERT(recognized_kind() == MethodRecognizer::kDoubleToInteger);
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const Register result = locs()->out(0).reg();
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const Register result = locs()->out(0).reg();
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const DRegister value_double = EvenDRegisterOf(locs()->in(0).fpu_reg());
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const DRegister value_double = EvenDRegisterOf(locs()->in(0).fpu_reg());
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@ -1140,16 +1140,6 @@ bool FlowGraphBuilder::IsRecognizedMethodForFlowGraph(
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case MethodRecognizer::kMathLog:
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case MethodRecognizer::kMathLog:
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case MethodRecognizer::kMathSqrt:
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case MethodRecognizer::kMathSqrt:
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return true;
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return true;
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case MethodRecognizer::kDoubleCeilToInt:
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case MethodRecognizer::kDoubleFloorToInt:
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#if defined(TARGET_ARCH_X64)
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return CompilerState::Current().is_aot() || FLAG_target_unknown_cpu;
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#elif defined(TARGET_ARCH_ARM64) || defined(TARGET_ARCH_RISCV32) || \
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defined(TARGET_ARCH_RISCV64)
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return true;
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#else
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return false;
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#endif
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default:
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default:
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return false;
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return false;
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}
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}
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@ -1814,9 +1804,7 @@ FlowGraph* FlowGraphBuilder::BuildGraphOfRecognizedMethod(
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body += LoadIndexed(kIntPtrCid);
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body += LoadIndexed(kIntPtrCid);
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body += Box(kUnboxedIntPtr);
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body += Box(kUnboxedIntPtr);
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} break;
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} break;
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case MethodRecognizer::kDoubleToInteger:
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case MethodRecognizer::kDoubleToInteger: {
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case MethodRecognizer::kDoubleCeilToInt:
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case MethodRecognizer::kDoubleFloorToInt: {
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body += LoadLocal(parsed_function_->RawParameterVariable(0));
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body += LoadLocal(parsed_function_->RawParameterVariable(0));
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body += DoubleToInteger(kind);
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body += DoubleToInteger(kind);
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} break;
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} break;
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@ -1839,27 +1827,7 @@ FlowGraph* FlowGraphBuilder::BuildGraphOfRecognizedMethod(
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for (intptr_t i = 0, n = function.NumParameters(); i < n; ++i) {
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for (intptr_t i = 0, n = function.NumParameters(); i < n; ++i) {
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body += LoadLocal(parsed_function_->RawParameterVariable(i));
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body += LoadLocal(parsed_function_->RawParameterVariable(i));
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}
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}
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if (!CompilerState::Current().is_aot() &&
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TargetCPUFeatures::double_truncate_round_supported() &&
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((kind == MethodRecognizer::kDoubleTruncateToDouble) ||
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(kind == MethodRecognizer::kDoubleFloorToDouble) ||
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(kind == MethodRecognizer::kDoubleCeilToDouble))) {
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switch (kind) {
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case MethodRecognizer::kDoubleTruncateToDouble:
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body += UnaryDoubleOp(Token::kTRUNCATE);
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break;
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case MethodRecognizer::kDoubleFloorToDouble:
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body += UnaryDoubleOp(Token::kFLOOR);
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break;
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case MethodRecognizer::kDoubleCeilToDouble:
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body += UnaryDoubleOp(Token::kCEILING);
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break;
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default:
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UNREACHABLE();
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}
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} else {
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body += InvokeMathCFunction(kind, function.NumParameters());
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body += InvokeMathCFunction(kind, function.NumParameters());
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}
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} break;
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} break;
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case MethodRecognizer::kMathSqrt: {
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case MethodRecognizer::kMathSqrt: {
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body += LoadLocal(parsed_function_->RawParameterVariable(0));
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body += LoadLocal(parsed_function_->RawParameterVariable(0));
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