[mips][Turboprop] Move deoptimizations for dynamic map checks into builtin.

Port: b6643320

Bug: v8:10582

Change-Id: I3efdd840a4f3f2eeb6156f8b446478311a2ccd26
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2568569Reviewed-by: Zhao Jiazhong <zhaojiazhong-hf@loongson.cn>
Commit-Queue: Zhao Jiazhong <zhaojiazhong-hf@loongson.cn>
Auto-Submit: Liu yu <liuyu@loongson.cn>
Cr-Commit-Position: refs/heads/master@{#71560}

src/builtins/mips/builtins-mips.cc

@@ -3847,6 +3847,50 @@ void Builtins::Generate_DeoptimizationEntry_Lazy(MacroAssembler* masm) {
   Generate_DeoptimizationEntry(masm, DeoptimizeKind::kLazy);
 }
 
+void Builtins::Generate_DynamicMapChecksTrampoline(MacroAssembler* masm) {
+  FrameScope scope(masm, StackFrame::MANUAL);
+  __ EnterFrame(StackFrame::INTERNAL);
+
+  // Only save the registers that the DynamicMapChecks builtin can clobber.
+  DynamicMapChecksDescriptor descriptor;
+  RegList registers = descriptor.allocatable_registers();
+  // FLAG_debug_code is enabled CSA checks will call C function and so we need
+  // to save all CallerSaved registers too.
+  if (FLAG_debug_code) registers |= kJSCallerSaved;
+  __ SaveRegisters(registers);
+  __ Call(BUILTIN_CODE(masm->isolate(), DynamicMapChecks),
+          RelocInfo::CODE_TARGET);
+
+  Label deopt, bailout;
+  __ Branch(&deopt, ne, v0,
+            Operand(static_cast<int>(DynamicMapChecksStatus::kSuccess)));
+
+  __ RestoreRegisters(registers);
+  __ LeaveFrame(StackFrame::INTERNAL);
+  __ Ret();
+
+  __ bind(&deopt);
+  __ Branch(&bailout, eq, v0,
+            Operand(static_cast<int>(DynamicMapChecksStatus::kBailout)));
+
+  if (FLAG_debug_code) {
+    __ Assert(eq, AbortReason::kUnexpectedDynamicMapChecksStatus, v0,
+              Operand(static_cast<int>(DynamicMapChecksStatus::kDeopt)));
+  }
+  __ RestoreRegisters(registers);
+  __ LeaveFrame(StackFrame::INTERNAL);
+  Handle<Code> deopt_eager = masm->isolate()->builtins()->builtin_handle(
+      Deoptimizer::GetDeoptimizationEntry(DeoptimizeKind::kEager));
+  __ Jump(deopt_eager, RelocInfo::CODE_TARGET);
+
+  __ bind(&bailout);
+  __ RestoreRegisters(registers);
+  __ LeaveFrame(StackFrame::INTERNAL);
+  Handle<Code> deopt_bailout = masm->isolate()->builtins()->builtin_handle(
+      Deoptimizer::GetDeoptimizationEntry(DeoptimizeKind::kBailout));
+  __ Jump(deopt_bailout, RelocInfo::CODE_TARGET);
+}
+
 #undef __
 
 }  // namespace internal

src/builtins/mips64/builtins-mips64.cc

@@ -3409,6 +3409,50 @@ void Builtins::Generate_DeoptimizationEntry_Lazy(MacroAssembler* masm) {
   Generate_DeoptimizationEntry(masm, DeoptimizeKind::kLazy);
 }
 
+void Builtins::Generate_DynamicMapChecksTrampoline(MacroAssembler* masm) {
+  FrameScope scope(masm, StackFrame::MANUAL);
+  __ EnterFrame(StackFrame::INTERNAL);
+
+  // Only save the registers that the DynamicMapChecks builtin can clobber.
+  DynamicMapChecksDescriptor descriptor;
+  RegList registers = descriptor.allocatable_registers();
+  // FLAG_debug_code is enabled CSA checks will call C function and so we need
+  // to save all CallerSaved registers too.
+  if (FLAG_debug_code) registers |= kJSCallerSaved;
+  __ SaveRegisters(registers);
+  __ Call(BUILTIN_CODE(masm->isolate(), DynamicMapChecks),
+          RelocInfo::CODE_TARGET);
+
+  Label deopt, bailout;
+  __ Branch(&deopt, ne, v0,
+            Operand(static_cast<int>(DynamicMapChecksStatus::kSuccess)));
+
+  __ RestoreRegisters(registers);
+  __ LeaveFrame(StackFrame::INTERNAL);
+  __ Ret();
+
+  __ bind(&deopt);
+  __ Branch(&bailout, eq, v0,
+            Operand(static_cast<int>(DynamicMapChecksStatus::kBailout)));
+
+  if (FLAG_debug_code) {
+    __ Assert(eq, AbortReason::kUnexpectedDynamicMapChecksStatus, v0,
+              Operand(static_cast<int>(DynamicMapChecksStatus::kDeopt)));
+  }
+  __ RestoreRegisters(registers);
+  __ LeaveFrame(StackFrame::INTERNAL);
+  Handle<Code> deopt_eager = masm->isolate()->builtins()->builtin_handle(
+      Deoptimizer::GetDeoptimizationEntry(DeoptimizeKind::kEager));
+  __ Jump(deopt_eager, RelocInfo::CODE_TARGET);
+
+  __ bind(&bailout);
+  __ RestoreRegisters(registers);
+  __ LeaveFrame(StackFrame::INTERNAL);
+  Handle<Code> deopt_bailout = masm->isolate()->builtins()->builtin_handle(
+      Deoptimizer::GetDeoptimizationEntry(DeoptimizeKind::kBailout));
+  __ Jump(deopt_bailout, RelocInfo::CODE_TARGET);
+}
+
 #undef __
 
 }  // namespace internal

src/codegen/mips/interface-descriptors-mips.cc

@@ -60,6 +60,18 @@ void RecordWriteDescriptor::InitializePlatformSpecific(
   data->InitializePlatformSpecific(kParameterCount, default_stub_registers);
 }
 
+void DynamicMapChecksDescriptor::InitializePlatformSpecific(
+    CallInterfaceDescriptorData* data) {
+  Register default_stub_registers[] = {kReturnRegister0, a0, a1, a2, cp};
+
+  data->RestrictAllocatableRegisters(default_stub_registers,
+                                     arraysize(default_stub_registers));
+
+  CHECK_LE(static_cast<size_t>(kParameterCount),
+           arraysize(default_stub_registers));
+  data->InitializePlatformSpecific(kParameterCount, default_stub_registers);
+}
+
 void EphemeronKeyBarrierDescriptor::InitializePlatformSpecific(
     CallInterfaceDescriptorData* data) {
   const Register default_stub_registers[] = {a0, a1, a2, a3, kReturnRegister0};

src/codegen/mips/macro-assembler-mips.cc

@@ -5547,7 +5547,7 @@ void TurboAssembler::ResetSpeculationPoisonRegister() {
 
 void TurboAssembler::CallForDeoptimization(Builtins::Name target, int,
                                            Label* exit, DeoptimizeKind kind,
-                                           Label*) {
+                                           Label* ret, Label*) {
   BlockTrampolinePoolScope block_trampoline_pool(this);
   Lw(t9,
      MemOperand(kRootRegister, IsolateData::builtin_entry_slot_offset(target)));
@@ -5556,7 +5556,11 @@ void TurboAssembler::CallForDeoptimization(Builtins::Name target, int,
             (kind == DeoptimizeKind::kLazy)
                 ? Deoptimizer::kLazyDeoptExitSize
                 : Deoptimizer::kNonLazyDeoptExitSize);
-  USE(exit, kind);
+  if (kind == DeoptimizeKind::kEagerWithResume) {
+    Branch(ret);
+    DCHECK_EQ(SizeOfCodeGeneratedSince(exit),
+              Deoptimizer::kEagerWithResumeDeoptExitSize);
+  }
 }
 
 }  // namespace internal

src/codegen/mips/macro-assembler-mips.h

@@ -238,7 +238,7 @@ class V8_EXPORT_PRIVATE TurboAssembler : public TurboAssemblerBase {
   void StoreReturnAddressAndCall(Register target);
 
   void CallForDeoptimization(Builtins::Name target, int deopt_id, Label* exit,
-                             DeoptimizeKind kind,
+                             DeoptimizeKind kind, Label* ret,
                              Label* jump_deoptimization_entry_label);
 
   void Ret(COND_ARGS);

src/codegen/mips64/interface-descriptors-mips64.cc

@@ -60,6 +60,18 @@ void RecordWriteDescriptor::InitializePlatformSpecific(
   data->InitializePlatformSpecific(kParameterCount, default_stub_registers);
 }
 
+void DynamicMapChecksDescriptor::InitializePlatformSpecific(
+    CallInterfaceDescriptorData* data) {
+  Register default_stub_registers[] = {kReturnRegister0, a0, a1, a2, cp};
+
+  data->RestrictAllocatableRegisters(default_stub_registers,
+                                     arraysize(default_stub_registers));
+
+  CHECK_LE(static_cast<size_t>(kParameterCount),
+           arraysize(default_stub_registers));
+  data->InitializePlatformSpecific(kParameterCount, default_stub_registers);
+}
+
 void EphemeronKeyBarrierDescriptor::InitializePlatformSpecific(
     CallInterfaceDescriptorData* data) {
   const Register default_stub_registers[] = {a0, a1, a2, a3, kReturnRegister0};

src/codegen/mips64/macro-assembler-mips64.cc

@@ -5908,7 +5908,7 @@ void TurboAssembler::ResetSpeculationPoisonRegister() {
 
 void TurboAssembler::CallForDeoptimization(Builtins::Name target, int,
                                            Label* exit, DeoptimizeKind kind,
-                                           Label*) {
+                                           Label* ret, Label*) {
   BlockTrampolinePoolScope block_trampoline_pool(this);
   Ld(t9,
      MemOperand(kRootRegister, IsolateData::builtin_entry_slot_offset(target)));
@@ -5917,7 +5917,12 @@ void TurboAssembler::CallForDeoptimization(Builtins::Name target, int,
             (kind == DeoptimizeKind::kLazy)
                 ? Deoptimizer::kLazyDeoptExitSize
                 : Deoptimizer::kNonLazyDeoptExitSize);
-  USE(exit, kind);
+
+  if (kind == DeoptimizeKind::kEagerWithResume) {
+    Branch(ret);
+    DCHECK_EQ(SizeOfCodeGeneratedSince(exit),
+              Deoptimizer::kEagerWithResumeDeoptExitSize);
+  }
 }
 
 }  // namespace internal

src/codegen/mips64/macro-assembler-mips64.h

@@ -261,7 +261,7 @@ class V8_EXPORT_PRIVATE TurboAssembler : public TurboAssemblerBase {
   void StoreReturnAddressAndCall(Register target);
 
   void CallForDeoptimization(Builtins::Name target, int deopt_id, Label* exit,
-                             DeoptimizeKind kind,
+                             DeoptimizeKind kind, Label* ret,
                              Label* jump_deoptimization_entry_label);
 
   void Ret(COND_ARGS);

src/deoptimizer/mips/deoptimizer-mips.cc

@@ -10,6 +10,7 @@ namespace internal {
 const bool Deoptimizer::kSupportsFixedDeoptExitSizes = true;
 const int Deoptimizer::kNonLazyDeoptExitSize = 3 * kInstrSize;
 const int Deoptimizer::kLazyDeoptExitSize = 3 * kInstrSize;
+const int Deoptimizer::kEagerWithResumeDeoptExitSize = 5 * kInstrSize;
 
 // Maximum size of a table entry generated below.
 #ifdef _MIPS_ARCH_MIPS32R6

src/deoptimizer/mips64/deoptimizer-mips64.cc

@@ -10,6 +10,7 @@ namespace internal {
 const bool Deoptimizer::kSupportsFixedDeoptExitSizes = true;
 const int Deoptimizer::kNonLazyDeoptExitSize = 3 * kInstrSize;
 const int Deoptimizer::kLazyDeoptExitSize = 3 * kInstrSize;
+const int Deoptimizer::kEagerWithResumeDeoptExitSize = 5 * kInstrSize;
 
 // Maximum size of a table entry generated below.
 #ifdef _MIPS_ARCH_MIPS64R6

test/cctest/test-macro-assembler-mips.cc

@@ -30,7 +30,9 @@
 
 #include "src/api/api-inl.h"
 #include "src/base/utils/random-number-generator.h"
+#include "src/codegen/assembler-inl.h"
 #include "src/codegen/macro-assembler.h"
+#include "src/deoptimizer/deoptimizer.h"
 #include "src/execution/simulator.h"
 #include "src/init/v8.h"
 #include "src/objects/heap-number.h"
@@ -38,6 +40,7 @@
 #include "src/objects/objects-inl.h"
 #include "src/utils/ostreams.h"
 #include "test/cctest/cctest.h"
+#include "test/common/assembler-tester.h"
 
 namespace v8 {
 namespace internal {
@@ -1332,6 +1335,38 @@ TEST(macro_float_minmax_f64) {
 #undef CHECK_MINMAX
 }
 
+TEST(DeoptExitSizeIsFixed) {
+  CHECK(Deoptimizer::kSupportsFixedDeoptExitSizes);
+
+  Isolate* isolate = CcTest::i_isolate();
+  HandleScope handles(isolate);
+  auto buffer = AllocateAssemblerBuffer();
+  MacroAssembler masm(isolate, v8::internal::CodeObjectRequired::kYes,
+                      buffer->CreateView());
+  STATIC_ASSERT(static_cast<int>(kFirstDeoptimizeKind) == 0);
+  for (int i = 0; i < kDeoptimizeKindCount; i++) {
+    DeoptimizeKind kind = static_cast<DeoptimizeKind>(i);
+    Label before_exit;
+    masm.bind(&before_exit);
+    if (kind == DeoptimizeKind::kEagerWithResume) {
+      Builtins::Name target = Deoptimizer::GetDeoptWithResumeBuiltin(
+          DeoptimizeReason::kDynamicMapCheck);
+      masm.CallForDeoptimization(target, 42, &before_exit, kind, &before_exit,
+                                 nullptr);
+      CHECK_EQ(masm.SizeOfCodeGeneratedSince(&before_exit),
+               Deoptimizer::kEagerWithResumeDeoptExitSize);
+    } else {
+      Builtins::Name target = Deoptimizer::GetDeoptimizationEntry(kind);
+      masm.CallForDeoptimization(target, 42, &before_exit, kind, &before_exit,
+                                 nullptr);
+      CHECK_EQ(masm.SizeOfCodeGeneratedSince(&before_exit),
+               kind == DeoptimizeKind::kLazy
+                   ? Deoptimizer::kLazyDeoptExitSize
+                   : Deoptimizer::kNonLazyDeoptExitSize);
+    }
+  }
+}
+
 #undef __
 
 }  // namespace internal

test/cctest/test-macro-assembler-mips64.cc

@@ -28,15 +28,15 @@
 #include <stdlib.h>
 #include <iostream>  // NOLINT(readability/streams)
 
-#include "src/init/v8.h"
-#include "test/cctest/cctest.h"
-
-#include "src/base/utils/random-number-generator.h"
+#include "src/codegen/assembler-inl.h"
 #include "src/codegen/macro-assembler.h"
+#include "src/deoptimizer/deoptimizer.h"
 #include "src/execution/simulator.h"
-#include "src/objects/heap-number.h"
-#include "src/utils/ostreams.h"
+#include "src/init/v8.h"
 #include "src/objects/objects-inl.h"
+#include "src/utils/ostreams.h"
+#include "test/cctest/cctest.h"
+#include "test/common/assembler-tester.h"
 
 namespace v8 {
 namespace internal {
@@ -1687,6 +1687,38 @@ TEST(macro_float_minmax_f64) {
 #undef CHECK_MINMAX
 }
 
+TEST(DeoptExitSizeIsFixed) {
+  CHECK(Deoptimizer::kSupportsFixedDeoptExitSizes);
+
+  Isolate* isolate = CcTest::i_isolate();
+  HandleScope handles(isolate);
+  auto buffer = AllocateAssemblerBuffer();
+  MacroAssembler masm(isolate, v8::internal::CodeObjectRequired::kYes,
+                      buffer->CreateView());
+  STATIC_ASSERT(static_cast<int>(kFirstDeoptimizeKind) == 0);
+  for (int i = 0; i < kDeoptimizeKindCount; i++) {
+    DeoptimizeKind kind = static_cast<DeoptimizeKind>(i);
+    Label before_exit;
+    masm.bind(&before_exit);
+    if (kind == DeoptimizeKind::kEagerWithResume) {
+      Builtins::Name target = Deoptimizer::GetDeoptWithResumeBuiltin(
+          DeoptimizeReason::kDynamicMapCheck);
+      masm.CallForDeoptimization(target, 42, &before_exit, kind, &before_exit,
+                                 nullptr);
+      CHECK_EQ(masm.SizeOfCodeGeneratedSince(&before_exit),
+               Deoptimizer::kEagerWithResumeDeoptExitSize);
+    } else {
+      Builtins::Name target = Deoptimizer::GetDeoptimizationEntry(kind);
+      masm.CallForDeoptimization(target, 42, &before_exit, kind, &before_exit,
+                                 nullptr);
+      CHECK_EQ(masm.SizeOfCodeGeneratedSince(&before_exit),
+               kind == DeoptimizeKind::kLazy
+                   ? Deoptimizer::kLazyDeoptExitSize
+                   : Deoptimizer::kNonLazyDeoptExitSize);
+    }
+  }
+}
+
 #undef __
 
 }  // namespace internal