[Interpreter] Map runtime id's to intrinsic id's in InvokeIntrinsic bytecode.

Make intrinsic ids a contiguous set of ids so that the switch statement can build
a table switch rather than doing a large if/else tree.

BUG=v8:4822
LOG=N

Review-Url: https://codereview.chromium.org/2084623002
Cr-Commit-Position: refs/heads/master@{#37135}

src/compiler/bytecode-graph-builder.cc

@@ -1001,8 +1001,7 @@ Node* BytecodeGraphBuilder::ProcessCallRuntimeArguments(
 
 void BytecodeGraphBuilder::VisitCallRuntime() {
   FrameStateBeforeAndAfter states(this);
-  Runtime::FunctionId functionId = static_cast<Runtime::FunctionId>(
-      bytecode_iterator().GetRuntimeIdOperand(0));
+  Runtime::FunctionId functionId = bytecode_iterator().GetRuntimeIdOperand(0);
   interpreter::Register first_arg = bytecode_iterator().GetRegisterOperand(1);
   size_t arg_count = bytecode_iterator().GetRegisterCountOperand(2);
 
@@ -1014,8 +1013,7 @@ void BytecodeGraphBuilder::VisitCallRuntime() {
 
 void BytecodeGraphBuilder::VisitCallRuntimeForPair() {
   FrameStateBeforeAndAfter states(this);
-  Runtime::FunctionId functionId = static_cast<Runtime::FunctionId>(
-      bytecode_iterator().GetRuntimeIdOperand(0));
+  Runtime::FunctionId functionId = bytecode_iterator().GetRuntimeIdOperand(0);
   interpreter::Register first_arg = bytecode_iterator().GetRegisterOperand(1);
   size_t arg_count = bytecode_iterator().GetRegisterCountOperand(2);
   interpreter::Register first_return =
@@ -1029,8 +1027,7 @@ void BytecodeGraphBuilder::VisitCallRuntimeForPair() {
 
 void BytecodeGraphBuilder::VisitInvokeIntrinsic() {
   FrameStateBeforeAndAfter states(this);
-  Runtime::FunctionId functionId = static_cast<Runtime::FunctionId>(
-      bytecode_iterator().GetRuntimeIdOperand(0));
+  Runtime::FunctionId functionId = bytecode_iterator().GetIntrinsicIdOperand(0);
   interpreter::Register first_arg = bytecode_iterator().GetRegisterOperand(1);
   size_t arg_count = bytecode_iterator().GetRegisterCountOperand(2);
 

src/interpreter/bytecode-array-builder.cc

@@ -573,11 +573,16 @@ BytecodeArrayBuilder& BytecodeArrayBuilder::CallRuntime(
     DCHECK_EQ(0u, arg_count);
     first_arg = Register(0);
   }
-  Bytecode bytecode = IntrinsicsHelper::IsSupported(function_id)
-                          ? Bytecode::kInvokeIntrinsic
-                          : Bytecode::kCallRuntime;
-  Output(bytecode, static_cast<uint16_t>(function_id),
-         RegisterOperand(first_arg), UnsignedOperand(arg_count));
+  Bytecode bytecode;
+  uint32_t id;
+  if (IntrinsicsHelper::IsSupported(function_id)) {
+    bytecode = Bytecode::kInvokeIntrinsic;
+    id = static_cast<uint32_t>(IntrinsicsHelper::FromRuntimeId(function_id));
+  } else {
+    bytecode = Bytecode::kCallRuntime;
+    id = static_cast<uint32_t>(function_id);
+  }
+  Output(bytecode, id, RegisterOperand(first_arg), UnsignedOperand(arg_count));
   return *this;
 }
 
@@ -691,6 +696,7 @@ bool BytecodeArrayBuilder::OperandsAreValid(
         break;
       }
       case OperandType::kFlag8:
+      case OperandType::kIntrinsicId:
         if (Bytecodes::SizeForUnsignedOperand(operands[i]) >
             OperandSize::kByte) {
           return false;

src/interpreter/bytecode-array-iterator.cc

@@ -4,6 +4,7 @@
 
 #include "src/interpreter/bytecode-array-iterator.h"
 
+#include "src/interpreter/interpreter-intrinsics.h"
 #include "src/objects-inl.h"
 
 namespace v8 {
@@ -140,11 +141,23 @@ int BytecodeArrayIterator::GetRegisterOperandRange(int operand_index) const {
   }
 }
 
-uint32_t BytecodeArrayIterator::GetRuntimeIdOperand(int operand_index) const {
+Runtime::FunctionId BytecodeArrayIterator::GetRuntimeIdOperand(
+    int operand_index) const {
   OperandType operand_type =
       Bytecodes::GetOperandType(current_bytecode(), operand_index);
   DCHECK(operand_type == OperandType::kRuntimeId);
-  return GetUnsignedOperand(operand_index, operand_type);
+  uint32_t raw_id = GetUnsignedOperand(operand_index, operand_type);
+  return static_cast<Runtime::FunctionId>(raw_id);
+}
+
+Runtime::FunctionId BytecodeArrayIterator::GetIntrinsicIdOperand(
+    int operand_index) const {
+  OperandType operand_type =
+      Bytecodes::GetOperandType(current_bytecode(), operand_index);
+  DCHECK(operand_type == OperandType::kIntrinsicId);
+  uint32_t raw_id = GetUnsignedOperand(operand_index, operand_type);
+  return IntrinsicsHelper::ToRuntimeId(
+      static_cast<IntrinsicsHelper::IntrinsicId>(raw_id));
 }
 
 Handle<Object> BytecodeArrayIterator::GetConstantForIndexOperand(

src/interpreter/bytecode-array-iterator.h

@@ -8,6 +8,7 @@
 #include "src/handles.h"
 #include "src/interpreter/bytecodes.h"
 #include "src/objects.h"
+#include "src/runtime/runtime.h"
 
 namespace v8 {
 namespace internal {
@@ -34,7 +35,8 @@ class BytecodeArrayIterator {
   uint32_t GetRegisterCountOperand(int operand_index) const;
   Register GetRegisterOperand(int operand_index) const;
   int GetRegisterOperandRange(int operand_index) const;
-  uint32_t GetRuntimeIdOperand(int operand_index) const;
+  Runtime::FunctionId GetRuntimeIdOperand(int operand_index) const;
+  Runtime::FunctionId GetIntrinsicIdOperand(int operand_index) const;
   Handle<Object> GetConstantForIndexOperand(int operand_index) const;
 
   // Returns the absolute offset of the branch target at the current

src/interpreter/bytecodes.cc

@@ -737,6 +737,7 @@ std::ostream& Bytecodes::Decode(std::ostream& os, const uint8_t* bytecode_start,
         break;
       case interpreter::OperandType::kIdx:
       case interpreter::OperandType::kRuntimeId:
+      case interpreter::OperandType::kIntrinsicId:
         os << "["
            << DecodeUnsignedOperand(operand_start, op_type, operand_scale)
            << "]";

src/interpreter/bytecodes.h

@@ -30,6 +30,7 @@ namespace interpreter {
 
 #define SCALAR_OPERAND_TYPE_LIST(V)                   \
   V(Flag8, OperandTypeInfo::kFixedUnsignedByte)       \
+  V(IntrinsicId, OperandTypeInfo::kFixedUnsignedByte) \
   V(Idx, OperandTypeInfo::kScalableUnsignedByte)      \
   V(Imm, OperandTypeInfo::kScalableSignedByte)        \
   V(RegCount, OperandTypeInfo::kScalableUnsignedByte) \
@@ -180,7 +181,7 @@ namespace interpreter {
     OperandType::kReg, OperandType::kRegCount)                                \
                                                                               \
   /* Intrinsics */                                                            \
-  V(InvokeIntrinsic, AccumulatorUse::kWrite, OperandType::kRuntimeId,         \
+  V(InvokeIntrinsic, AccumulatorUse::kWrite, OperandType::kIntrinsicId,       \
     OperandType::kMaybeReg, OperandType::kRegCount)                           \
                                                                               \
   /* New operator */                                                          \

src/interpreter/interpreter-assembler.cc

@@ -363,6 +363,15 @@ Node* InterpreterAssembler::BytecodeOperandRuntimeId(int operand_index) {
   return BytecodeUnsignedOperand(operand_index, operand_size);
 }
 
+Node* InterpreterAssembler::BytecodeOperandIntrinsicId(int operand_index) {
+  DCHECK(OperandType::kIntrinsicId ==
+         Bytecodes::GetOperandType(bytecode_, operand_index));
+  OperandSize operand_size =
+      Bytecodes::GetOperandSize(bytecode_, operand_index, operand_scale());
+  DCHECK_EQ(operand_size, OperandSize::kByte);
+  return BytecodeUnsignedOperand(operand_index, operand_size);
+}
+
 Node* InterpreterAssembler::LoadConstantPoolEntry(Node* index) {
   Node* constant_pool = LoadObjectField(BytecodeArrayTaggedPointer(),
                                         BytecodeArray::kConstantPoolOffset);

src/interpreter/interpreter-assembler.h

@@ -41,6 +41,9 @@ class InterpreterAssembler : public CodeStubAssembler {
   // Returns the runtime id immediate for bytecode operand
   // |operand_index| in the current bytecode.
   compiler::Node* BytecodeOperandRuntimeId(int operand_index);
+  // Returns the intrinsic id immediate for bytecode operand
+  // |operand_index| in the current bytecode.
+  compiler::Node* BytecodeOperandIntrinsicId(int operand_index);
 
   // Accumulator.
   compiler::Node* GetAccumulator();

src/interpreter/interpreter-intrinsics.cc

@@ -15,6 +15,7 @@ using compiler::Node;
 IntrinsicsHelper::IntrinsicsHelper(InterpreterAssembler* assembler)
     : assembler_(assembler) {}
 
+// static
 bool IntrinsicsHelper::IsSupported(Runtime::FunctionId function_id) {
   switch (function_id) {
 #define SUPPORTED(name, lower_case, count) case Runtime::kInline##name:
@@ -26,6 +27,36 @@ bool IntrinsicsHelper::IsSupported(Runtime::FunctionId function_id) {
   }
 }
 
+// static
+IntrinsicsHelper::IntrinsicId IntrinsicsHelper::FromRuntimeId(
+    Runtime::FunctionId function_id) {
+  switch (function_id) {
+#define TO_RUNTIME_ID(name, lower_case, count) \
+  case Runtime::kInline##name:                 \
+    return IntrinsicId::k##name;
+    INTRINSICS_LIST(TO_RUNTIME_ID)
+#undef TO_RUNTIME_ID
+    default:
+      UNREACHABLE();
+      return static_cast<IntrinsicsHelper::IntrinsicId>(-1);
+  }
+}
+
+// static
+Runtime::FunctionId IntrinsicsHelper::ToRuntimeId(
+    IntrinsicsHelper::IntrinsicId intrinsic_id) {
+  switch (intrinsic_id) {
+#define TO_INTRINSIC_ID(name, lower_case, count) \
+  case IntrinsicId::k##name:                     \
+    return Runtime::kInline##name;
+    INTRINSICS_LIST(TO_INTRINSIC_ID)
+#undef TO_INTRINSIC_ID
+    default:
+      UNREACHABLE();
+      return static_cast<Runtime::FunctionId>(-1);
+  }
+}
+
 Node* IntrinsicsHelper::InvokeIntrinsic(Node* function_id, Node* context,
                                         Node* first_arg_reg, Node* arg_count) {
   InterpreterAssembler::Label abort(assembler_), end(assembler_);
@@ -42,7 +73,7 @@ Node* IntrinsicsHelper::InvokeIntrinsic(Node* function_id, Node* context,
 #undef LABEL_POINTER
 
 #define CASE(name, lower_case, count) \
-  static_cast<int32_t>(Runtime::kInline##name),
+  static_cast<int32_t>(IntrinsicId::k##name),
   int32_t cases[] = {INTRINSICS_LIST(CASE)};
 #undef CASE
 

src/interpreter/interpreter-intrinsics.h

@@ -20,6 +20,8 @@ namespace compiler {
 class Node;
 }  // namespace compiler
 
+namespace interpreter {
+
 // List of supported intrisics, with upper case name, lower case name and
 // expected number of arguments (-1 denoting argument count is variable).
 #define INTRINSICS_LIST(V)           \
@@ -31,10 +33,16 @@ class Node;
   V(IsSmi, is_smi, 1)                \
   V(IsTypedArray, is_typed_array, 1)
 
-namespace interpreter {
-
 class IntrinsicsHelper {
  public:
+  enum class IntrinsicId {
+#define DECLARE_INTRINSIC_ID(name, lower_case, count) k##name,
+    INTRINSICS_LIST(DECLARE_INTRINSIC_ID)
+#undef DECLARE_INTRINSIC_ID
+        kIdCount
+  };
+  STATIC_ASSERT(static_cast<uint32_t>(IntrinsicId::kIdCount) <= kMaxUInt8);
+
   explicit IntrinsicsHelper(InterpreterAssembler* assembler);
 
   compiler::Node* InvokeIntrinsic(compiler::Node* function_id,
@@ -43,6 +51,8 @@ class IntrinsicsHelper {
                                   compiler::Node* arg_count);
 
   static bool IsSupported(Runtime::FunctionId function_id);
+  static IntrinsicId FromRuntimeId(Runtime::FunctionId function_id);
+  static Runtime::FunctionId ToRuntimeId(IntrinsicId intrinsic_id);
 
  private:
   enum InstanceTypeCompareMode {

src/interpreter/interpreter.cc

@@ -1045,7 +1045,7 @@ void Interpreter::DoCallRuntime(InterpreterAssembler* assembler) {
 // |function_id| with the first argument in |first_arg| and |arg_count|
 // arguments in subsequent registers.
 void Interpreter::DoInvokeIntrinsic(InterpreterAssembler* assembler) {
-  Node* function_id = __ BytecodeOperandRuntimeId(0);
+  Node* function_id = __ BytecodeOperandIntrinsicId(0);
   Node* first_arg_reg = __ BytecodeOperandReg(1);
   Node* arg_count = __ BytecodeOperandCount(2);
   Node* context = __ GetContext();

test/cctest/interpreter/bytecode-expectations-printer.cc

@@ -19,6 +19,7 @@
 #include "src/interpreter/bytecode-array-iterator.h"
 #include "src/interpreter/bytecode-generator.h"
 #include "src/interpreter/bytecodes.h"
+#include "src/interpreter/interpreter-intrinsics.h"
 #include "src/interpreter/interpreter.h"
 #include "src/interpreter/source-position-table.h"
 
@@ -98,12 +99,6 @@ void BytecodeExpectationsPrinter::PrintEscapedString(
   }
 }
 
-namespace {
-i::Runtime::FunctionId IndexToFunctionId(uint32_t index) {
-  return static_cast<i::Runtime::FunctionId>(index);
-}
-}  // namespace
-
 void BytecodeExpectationsPrinter::PrintBytecodeOperand(
     std::ostream& stream, const BytecodeArrayIterator& bytecode_iterator,
     const Bytecode& bytecode, int op_index, int parameter_count) const {
@@ -164,9 +159,15 @@ void BytecodeExpectationsPrinter::PrintBytecodeOperand(
         stream << bytecode_iterator.GetRegisterCountOperand(op_index);
         break;
       case OperandType::kRuntimeId: {
-        uint32_t operand = bytecode_iterator.GetRuntimeIdOperand(op_index);
-        stream << "Runtime::k"
-               << i::Runtime::FunctionForId(IndexToFunctionId(operand))->name;
+        Runtime::FunctionId id =
+            bytecode_iterator.GetRuntimeIdOperand(op_index);
+        stream << "Runtime::k" << i::Runtime::FunctionForId(id)->name;
+        break;
+      }
+      case OperandType::kIntrinsicId: {
+        Runtime::FunctionId id =
+            bytecode_iterator.GetIntrinsicIdOperand(op_index);
+        stream << "Runtime::k" << i::Runtime::FunctionForId(id)->name;
         break;
       }
       default:

test/cctest/interpreter/bytecode_expectations/Generators.golden

@@ -265,7 +265,7 @@ snippet: "
 "
 frame size: 17
 parameter count: 1
-bytecode array length: 779
+bytecode array length: 775
 bytecodes: [
                 B(Ldar), R(new_target),
                 B(JumpIfUndefined), U8(26),
@@ -353,7 +353,7 @@ bytecodes: [
   /*   27 E> */ B(Call), R(12), R(13), U8(1), U8(5),
   /*   27 E> */ B(StaContextSlot), R(1), U8(8),
                 B(Star), R(11),
-                B(InvokeIntrinsic), U16(Runtime::k_IsJSReceiver), R(11), U8(1),
+                B(InvokeIntrinsic), U8(Runtime::k_IsJSReceiver), R(11), U8(1),
                 B(ToBooleanLogicalNot),
                 B(JumpIfFalse), U8(11),
                 B(LdrContextSlot), R(1), U8(8), R(11),
@@ -426,7 +426,7 @@ bytecodes: [
                 B(PopContext), R(2),
                 B(LdaZero),
                 B(StaContextSlot), R(1), U8(9),
-                B(Wide), B(Jump), U16(-223),
+                B(Wide), B(Jump), U16(-222),
                 B(Jump), U8(46),
                 B(Star), R(12),
                 B(LdaConstant), U8(11),
@@ -468,11 +468,11 @@ bytecodes: [
                 B(LdaNull),
                 B(TestEqual), R(10),
                 B(JumpIfFalse), U8(4),
-                B(Jump), U8(127),
+                B(Jump), U8(124),
                 B(LdrContextSlot), R(1), U8(9), R(10),
                 B(LdaSmi), U8(1),
                 B(TestEqualStrict), R(10),
-                B(JumpIfFalse), U8(79),
+                B(JumpIfFalse), U8(78),
                 B(LdaContextSlot), R(1), U8(11),
                 B(TypeOf),
                 B(Star), R(10),
@@ -489,7 +489,7 @@ bytecodes: [
                 B(Mov), R(context), R(10),
                 B(LdrContextSlot), R(1), U8(11), R(11),
                 B(LdrContextSlot), R(1), U8(7), R(12),
-                B(InvokeIntrinsic), U16(Runtime::k_Call), R(11), U8(2),
+                B(InvokeIntrinsic), U8(Runtime::k_Call), R(11), U8(2),
                 B(Jump), U8(29),
                 B(Star), R(12),
                 B(LdaConstant), U8(11),
@@ -501,13 +501,13 @@ bytecodes: [
                 B(Ldar), R(10),
                 B(PushContext), R(2),
                 B(PopContext), R(2),
-                B(Jump), U8(40),
+                B(Jump), U8(38),
                 B(LdrContextSlot), R(1), U8(11), R(10),
                 B(LdrContextSlot), R(1), U8(7), R(11),
-                B(InvokeIntrinsic), U16(Runtime::k_Call), R(10), U8(2),
+                B(InvokeIntrinsic), U8(Runtime::k_Call), R(10), U8(2),
                 B(StaContextSlot), R(1), U8(12),
                 B(LdrContextSlot), R(1), U8(12), R(10),
-                B(InvokeIntrinsic), U16(Runtime::k_IsJSReceiver), R(10), U8(1),
+                B(InvokeIntrinsic), U8(Runtime::k_IsJSReceiver), R(10), U8(1),
                 B(JumpIfToBooleanFalse), U8(4),
                 B(Jump), U8(11),
                 B(LdrContextSlot), R(1), U8(12), R(10),
@@ -601,9 +601,9 @@ constant pool: [
   kInstanceTypeDontCare,
 ]
 handlers: [
-  [44, 698, 704],
-  [154, 449, 455],
-  [157, 403, 405],
-  [552, 565, 567],
+  [44, 694, 700],
+  [154, 448, 454],
+  [157, 402, 404],
+  [551, 563, 565],
 ]
 

test/unittests/interpreter/bytecode-array-iterator-unittest.cc

@@ -229,8 +229,7 @@ TEST_F(BytecodeArrayIteratorTest, IteratesBytecodeArray) {
   CHECK_EQ(iterator.current_bytecode(), Bytecode::kCallRuntime);
   CHECK_EQ(iterator.current_offset(), offset);
   CHECK_EQ(iterator.current_operand_scale(), OperandScale::kSingle);
-  CHECK_EQ(static_cast<Runtime::FunctionId>(iterator.GetRuntimeIdOperand(0)),
-           Runtime::kLoadIC_Miss);
+  CHECK_EQ(iterator.GetRuntimeIdOperand(0), Runtime::kLoadIC_Miss);
   CHECK_EQ(iterator.GetRegisterOperand(1).index(), reg_0.index());
   CHECK_EQ(iterator.GetRegisterCountOperand(2), 1);
   CHECK(!iterator.done());

test/unittests/interpreter/interpreter-assembler-unittest.cc

@@ -428,6 +428,10 @@ TARGET_TEST_F(InterpreterAssemblerTest, BytecodeOperand) {
             EXPECT_THAT(m.BytecodeOperandRuntimeId(i),
                         m.IsUnsignedOperand(offset, operand_size));
             break;
+          case interpreter::OperandType::kIntrinsicId:
+            EXPECT_THAT(m.BytecodeOperandIntrinsicId(i),
+                        m.IsUnsignedOperand(offset, operand_size));
+            break;
           case interpreter::OperandType::kNone:
             UNREACHABLE();
             break;