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[stubs] Fixing loads/stores from arrays by int32 offsets/indices. Step 3.

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Review-Url: https://codereview.chromium.org/2319243002
Cr-Commit-Position: refs/heads/master@{#39276}
This commit is contained in:
ishell 2016-09-08 04:59:33 -07:00 committed by Commit bot
parent eea147fc2c
commit 4ef7e3e7c7
4 changed files with 197 additions and 160 deletions
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233
src/builtins/builtins-array.cc
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@ -1269,24 +1269,24 @@ void Builtins::Generate_ArrayIncludes(CodeStubAssembler* assembler) {
Node* start_from = assembler->Parameter(2); Node* start_from = assembler->Parameter(2);
Node* context = assembler->Parameter(3 + 2); Node* context = assembler->Parameter(3 + 2);
Node* int32_zero = assembler->Int32Constant(0); Node* intptr_zero = assembler->IntPtrConstant(0);
Node* int32_one = assembler->Int32Constant(1); Node* intptr_one = assembler->IntPtrConstant(1);
Node* the_hole = assembler->TheHoleConstant(); Node* the_hole = assembler->TheHoleConstant();
Node* undefined = assembler->UndefinedConstant(); Node* undefined = assembler->UndefinedConstant();
Node* heap_number_map = assembler->HeapNumberMapConstant(); Node* heap_number_map = assembler->HeapNumberMapConstant();
Variable len_var(assembler, MachineRepresentation::kWord32), Variable len_var(assembler, MachineType::PointerRepresentation()),
index_var(assembler, MachineRepresentation::kWord32), index_var(assembler, MachineType::PointerRepresentation()),
start_from_var(assembler, MachineRepresentation::kWord32); start_from_var(assembler, MachineType::PointerRepresentation());
Label init_k(assembler), return_true(assembler), return_false(assembler), Label init_k(assembler), return_true(assembler), return_false(assembler),
call_runtime(assembler); call_runtime(assembler);
Label init_len(assembler); Label init_len(assembler);
index_var.Bind(int32_zero); index_var.Bind(intptr_zero);
len_var.Bind(int32_zero); len_var.Bind(intptr_zero);
// Take slow path if not a JSArray, if retrieving elements requires // Take slow path if not a JSArray, if retrieving elements requires
// traversing prototype, or if access checks are required. // traversing prototype, or if access checks are required.
@ -1299,7 +1299,7 @@ void Builtins::Generate_ArrayIncludes(CodeStubAssembler* assembler) {
assembler->GotoUnless(assembler->WordIsSmi(len), &call_runtime); assembler->GotoUnless(assembler->WordIsSmi(len), &call_runtime);
len_var.Bind(assembler->SmiToWord(len)); len_var.Bind(assembler->SmiToWord(len));
assembler->Branch(assembler->Word32Equal(len_var.value(), int32_zero), assembler->Branch(assembler->WordEqual(len_var.value(), intptr_zero),
&return_false, &init_k); &return_false, &init_k);
} }
@ -1315,23 +1315,25 @@ void Builtins::Generate_ArrayIncludes(CodeStubAssembler* assembler) {
assembler->Bind(&init_k_smi); assembler->Bind(&init_k_smi);
{ {
start_from_var.Bind(assembler->SmiToWord32(tagged_n)); start_from_var.Bind(assembler->SmiUntag(tagged_n));
assembler->Goto(&init_k_n); assembler->Goto(&init_k_n);
} }
assembler->Bind(&init_k_heap_num); assembler->Bind(&init_k_heap_num);
{ {
Label do_return_false(assembler); Label do_return_false(assembler);
Node* fp_len = assembler->ChangeInt32ToFloat64(len_var.value()); // This round is lossless for all valid lengths.
Node* fp_len = assembler->RoundIntPtrToFloat64(len_var.value());
Node* fp_n = assembler->LoadHeapNumberValue(tagged_n); Node* fp_n = assembler->LoadHeapNumberValue(tagged_n);
assembler->GotoIf(assembler->Float64GreaterThanOrEqual(fp_n, fp_len), assembler->GotoIf(assembler->Float64GreaterThanOrEqual(fp_n, fp_len),
&do_return_false); &do_return_false);
start_from_var.Bind(assembler->TruncateFloat64ToWord32(fp_n)); start_from_var.Bind(assembler->ChangeInt32ToIntPtr(
assembler->TruncateFloat64ToWord32(fp_n)));
assembler->Goto(&init_k_n); assembler->Goto(&init_k_n);
assembler->Bind(&do_return_false); assembler->Bind(&do_return_false);
{ {
index_var.Bind(int32_zero); index_var.Bind(intptr_zero);
assembler->Goto(&return_false); assembler->Goto(&return_false);
} }
} }
@ -1340,7 +1342,7 @@ void Builtins::Generate_ArrayIncludes(CodeStubAssembler* assembler) {
{ {
Label if_positive(assembler), if_negative(assembler), done(assembler); Label if_positive(assembler), if_negative(assembler), done(assembler);
assembler->Branch( assembler->Branch(
assembler->Int32LessThan(start_from_var.value(), int32_zero), assembler->IntPtrLessThan(start_from_var.value(), intptr_zero),
&if_negative, &if_positive); &if_negative, &if_positive);
assembler->Bind(&if_positive); assembler->Bind(&if_positive);
@ -1352,15 +1354,15 @@ void Builtins::Generate_ArrayIncludes(CodeStubAssembler* assembler) {
assembler->Bind(&if_negative); assembler->Bind(&if_negative);
{ {
index_var.Bind( index_var.Bind(
assembler->Int32Add(len_var.value(), start_from_var.value())); assembler->IntPtrAdd(len_var.value(), start_from_var.value()));
assembler->Branch( assembler->Branch(
assembler->Int32LessThan(index_var.value(), int32_zero), assembler->IntPtrLessThan(index_var.value(), intptr_zero),
&init_k_zero, &done); &init_k_zero, &done);
} }
assembler->Bind(&init_k_zero); assembler->Bind(&init_k_zero);
{ {
index_var.Bind(int32_zero); index_var.Bind(intptr_zero);
assembler->Goto(&done); assembler->Goto(&done);
} }
@ -1416,7 +1418,7 @@ void Builtins::Generate_ArrayIncludes(CodeStubAssembler* assembler) {
search_type, assembler->Int32Constant(FIRST_NONSTRING_TYPE)), search_type, assembler->Int32Constant(FIRST_NONSTRING_TYPE)),
&string_loop); &string_loop);
assembler->GotoIf( assembler->GotoIf(
assembler->WordEqual(search_type, assembler->Word32Equal(search_type,
assembler->Int32Constant(SIMD128_VALUE_TYPE)), assembler->Int32Constant(SIMD128_VALUE_TYPE)),
&simd_loop); &simd_loop);
assembler->Goto(&ident_loop); assembler->Goto(&ident_loop);
@ -1424,30 +1426,30 @@ void Builtins::Generate_ArrayIncludes(CodeStubAssembler* assembler) {
assembler->Bind(&ident_loop); assembler->Bind(&ident_loop);
{ {
assembler->GotoUnless( assembler->GotoUnless(
assembler->Int32LessThan(index_var.value(), len_var.value()), assembler->UintPtrLessThan(index_var.value(), len_var.value()),
&return_false); &return_false);
Node* element_k = Node* element_k = assembler->LoadFixedArrayElement(
assembler->LoadFixedArrayElement(elements, index_var.value()); elements, index_var.value(), 0, CodeStubAssembler::INTPTR_PARAMETERS);
assembler->GotoIf(assembler->WordEqual(element_k, search_element), assembler->GotoIf(assembler->WordEqual(element_k, search_element),
&return_true); &return_true);
index_var.Bind(assembler->Int32Add(index_var.value(), int32_one)); index_var.Bind(assembler->IntPtrAdd(index_var.value(), intptr_one));
assembler->Goto(&ident_loop); assembler->Goto(&ident_loop);
} }
assembler->Bind(&undef_loop); assembler->Bind(&undef_loop);
{ {
assembler->GotoUnless( assembler->GotoUnless(
assembler->Int32LessThan(index_var.value(), len_var.value()), assembler->UintPtrLessThan(index_var.value(), len_var.value()),
&return_false); &return_false);
Node* element_k = Node* element_k = assembler->LoadFixedArrayElement(
assembler->LoadFixedArrayElement(elements, index_var.value()); elements, index_var.value(), 0, CodeStubAssembler::INTPTR_PARAMETERS);
assembler->GotoIf(assembler->WordEqual(element_k, undefined), assembler->GotoIf(assembler->WordEqual(element_k, undefined),
&return_true); &return_true);
assembler->GotoIf(assembler->WordEqual(element_k, the_hole), assembler->GotoIf(assembler->WordEqual(element_k, the_hole),
&return_true); &return_true);
index_var.Bind(assembler->Int32Add(index_var.value(), int32_one)); index_var.Bind(assembler->IntPtrAdd(index_var.value(), intptr_one));
assembler->Goto(&undef_loop); assembler->Goto(&undef_loop);
} }
@ -1462,10 +1464,11 @@ void Builtins::Generate_ArrayIncludes(CodeStubAssembler* assembler) {
{ {
Label continue_loop(assembler), not_smi(assembler); Label continue_loop(assembler), not_smi(assembler);
assembler->GotoUnless( assembler->GotoUnless(
assembler->Int32LessThan(index_var.value(), len_var.value()), assembler->UintPtrLessThan(index_var.value(), len_var.value()),
&return_false); &return_false);
Node* element_k = Node* element_k = assembler->LoadFixedArrayElement(
assembler->LoadFixedArrayElement(elements, index_var.value()); elements, index_var.value(), 0,
CodeStubAssembler::INTPTR_PARAMETERS);
assembler->GotoUnless(assembler->WordIsSmi(element_k), &not_smi); assembler->GotoUnless(assembler->WordIsSmi(element_k), &not_smi);
assembler->Branch( assembler->Branch(
assembler->Float64Equal(search_num.value(), assembler->Float64Equal(search_num.value(),
@ -1481,7 +1484,7 @@ void Builtins::Generate_ArrayIncludes(CodeStubAssembler* assembler) {
&return_true, &continue_loop); &return_true, &continue_loop);
assembler->Bind(&continue_loop); assembler->Bind(&continue_loop);
index_var.Bind(assembler->Int32Add(index_var.value(), int32_one)); index_var.Bind(assembler->IntPtrAdd(index_var.value(), intptr_one));
assembler->Goto(&not_nan_loop); assembler->Goto(&not_nan_loop);
} }
@ -1489,10 +1492,11 @@ void Builtins::Generate_ArrayIncludes(CodeStubAssembler* assembler) {
{ {
Label continue_loop(assembler); Label continue_loop(assembler);
assembler->GotoUnless( assembler->GotoUnless(
assembler->Int32LessThan(index_var.value(), len_var.value()), assembler->UintPtrLessThan(index_var.value(), len_var.value()),
&return_false); &return_false);
Node* element_k = Node* element_k = assembler->LoadFixedArrayElement(
assembler->LoadFixedArrayElement(elements, index_var.value()); elements, index_var.value(), 0,
CodeStubAssembler::INTPTR_PARAMETERS);
assembler->GotoIf(assembler->WordIsSmi(element_k), &continue_loop); assembler->GotoIf(assembler->WordIsSmi(element_k), &continue_loop);
assembler->GotoIf(assembler->WordNotEqual(assembler->LoadMap(element_k), assembler->GotoIf(assembler->WordNotEqual(assembler->LoadMap(element_k),
heap_number_map), heap_number_map),
@ -1502,7 +1506,7 @@ void Builtins::Generate_ArrayIncludes(CodeStubAssembler* assembler) {
&continue_loop); &continue_loop);
assembler->Bind(&continue_loop); assembler->Bind(&continue_loop);
index_var.Bind(assembler->Int32Add(index_var.value(), int32_one)); index_var.Bind(assembler->IntPtrAdd(index_var.value(), intptr_one));
assembler->Goto(&nan_loop); assembler->Goto(&nan_loop);
} }
} }
@ -1511,10 +1515,10 @@ void Builtins::Generate_ArrayIncludes(CodeStubAssembler* assembler) {
{ {
Label continue_loop(assembler); Label continue_loop(assembler);
assembler->GotoUnless( assembler->GotoUnless(
assembler->Int32LessThan(index_var.value(), len_var.value()), assembler->UintPtrLessThan(index_var.value(), len_var.value()),
&return_false); &return_false);
Node* element_k = Node* element_k = assembler->LoadFixedArrayElement(
assembler->LoadFixedArrayElement(elements, index_var.value()); elements, index_var.value(), 0, CodeStubAssembler::INTPTR_PARAMETERS);
assembler->GotoIf(assembler->WordIsSmi(element_k), &continue_loop); assembler->GotoIf(assembler->WordIsSmi(element_k), &continue_loop);
assembler->GotoUnless(assembler->Int32LessThan( assembler->GotoUnless(assembler->Int32LessThan(
assembler->LoadInstanceType(element_k), assembler->LoadInstanceType(element_k),
@ -1530,7 +1534,7 @@ void Builtins::Generate_ArrayIncludes(CodeStubAssembler* assembler) {
&return_true, &continue_loop); &return_true, &continue_loop);
assembler->Bind(&continue_loop); assembler->Bind(&continue_loop);
index_var.Bind(assembler->Int32Add(index_var.value(), int32_one)); index_var.Bind(assembler->IntPtrAdd(index_var.value(), intptr_one));
assembler->Goto(&string_loop); assembler->Goto(&string_loop);
} }
@ -1543,11 +1547,11 @@ void Builtins::Generate_ArrayIncludes(CodeStubAssembler* assembler) {
assembler->Goto(&loop_body); assembler->Goto(&loop_body);
assembler->Bind(&loop_body); assembler->Bind(&loop_body);
assembler->GotoUnless( assembler->GotoUnless(
assembler->Int32LessThan(index_var.value(), len_var.value()), assembler->UintPtrLessThan(index_var.value(), len_var.value()),
&return_false); &return_false);
Node* element_k = Node* element_k = assembler->LoadFixedArrayElement(
assembler->LoadFixedArrayElement(elements, index_var.value()); elements, index_var.value(), 0, CodeStubAssembler::INTPTR_PARAMETERS);
assembler->GotoIf(assembler->WordIsSmi(element_k), &continue_loop); assembler->GotoIf(assembler->WordIsSmi(element_k), &continue_loop);
Node* map_k = assembler->LoadMap(element_k); Node* map_k = assembler->LoadMap(element_k);
@ -1555,7 +1559,7 @@ void Builtins::Generate_ArrayIncludes(CodeStubAssembler* assembler) {
&return_true, &continue_loop); &return_true, &continue_loop);
assembler->Bind(&continue_loop); assembler->Bind(&continue_loop);
index_var.Bind(assembler->Int32Add(index_var.value(), int32_one)); index_var.Bind(assembler->IntPtrAdd(index_var.value(), intptr_one));
assembler->Goto(&loop_body); assembler->Goto(&loop_body);
} }
} }
@ -1585,14 +1589,15 @@ void Builtins::Generate_ArrayIncludes(CodeStubAssembler* assembler) {
{ {
Label continue_loop(assembler); Label continue_loop(assembler);
assembler->GotoUnless( assembler->GotoUnless(
assembler->Int32LessThan(index_var.value(), len_var.value()), assembler->UintPtrLessThan(index_var.value(), len_var.value()),
&return_false); &return_false);
Node* element_k = assembler->LoadFixedDoubleArrayElement( Node* element_k = assembler->LoadFixedDoubleArrayElement(
elements, index_var.value(), MachineType::Float64()); elements, index_var.value(), MachineType::Float64(), 0,
CodeStubAssembler::INTPTR_PARAMETERS);
assembler->BranchIfFloat64Equal(element_k, search_num.value(), assembler->BranchIfFloat64Equal(element_k, search_num.value(),
&return_true, &continue_loop); &return_true, &continue_loop);
assembler->Bind(&continue_loop); assembler->Bind(&continue_loop);
index_var.Bind(assembler->Int32Add(index_var.value(), int32_one)); index_var.Bind(assembler->IntPtrAdd(index_var.value(), intptr_one));
assembler->Goto(&not_nan_loop); assembler->Goto(&not_nan_loop);
} }
@ -1601,13 +1606,14 @@ void Builtins::Generate_ArrayIncludes(CodeStubAssembler* assembler) {
{ {
Label continue_loop(assembler); Label continue_loop(assembler);
assembler->GotoUnless( assembler->GotoUnless(
assembler->Int32LessThan(index_var.value(), len_var.value()), assembler->UintPtrLessThan(index_var.value(), len_var.value()),
&return_false); &return_false);
Node* element_k = assembler->LoadFixedDoubleArrayElement( Node* element_k = assembler->LoadFixedDoubleArrayElement(
elements, index_var.value(), MachineType::Float64()); elements, index_var.value(), MachineType::Float64(), 0,
CodeStubAssembler::INTPTR_PARAMETERS);
assembler->BranchIfFloat64IsNaN(element_k, &return_true, &continue_loop); assembler->BranchIfFloat64IsNaN(element_k, &return_true, &continue_loop);
assembler->Bind(&continue_loop); assembler->Bind(&continue_loop);
index_var.Bind(assembler->Int32Add(index_var.value(), int32_one)); index_var.Bind(assembler->IntPtrAdd(index_var.value(), intptr_one));
assembler->Goto(&nan_loop); assembler->Goto(&nan_loop);
} }
} }
@ -1639,19 +1645,21 @@ void Builtins::Generate_ArrayIncludes(CodeStubAssembler* assembler) {
{ {
Label continue_loop(assembler); Label continue_loop(assembler);
assembler->GotoUnless( assembler->GotoUnless(
assembler->Int32LessThan(index_var.value(), len_var.value()), assembler->UintPtrLessThan(index_var.value(), len_var.value()),
&return_false); &return_false);
if (kPointerSize == kDoubleSize) { if (kPointerSize == kDoubleSize) {
Node* element = assembler->LoadFixedDoubleArrayElement( Node* element = assembler->LoadFixedDoubleArrayElement(
elements, index_var.value(), MachineType::Uint64()); elements, index_var.value(), MachineType::Uint64(), 0,
CodeStubAssembler::INTPTR_PARAMETERS);
Node* the_hole = assembler->Int64Constant(kHoleNanInt64); Node* the_hole = assembler->Int64Constant(kHoleNanInt64);
assembler->GotoIf(assembler->Word64Equal(element, the_hole), assembler->GotoIf(assembler->Word64Equal(element, the_hole),
&continue_loop); &continue_loop);
} else { } else {
Node* element_upper = assembler->LoadFixedDoubleArrayElement( Node* element_upper = assembler->LoadFixedDoubleArrayElement(
elements, index_var.value(), MachineType::Uint32(), elements, index_var.value(), MachineType::Uint32(),
kIeeeDoubleExponentWordOffset); kIeeeDoubleExponentWordOffset,
CodeStubAssembler::INTPTR_PARAMETERS);
assembler->GotoIf( assembler->GotoIf(
assembler->Word32Equal(element_upper, assembler->Word32Equal(element_upper,
assembler->Int32Constant(kHoleNanUpper32)), assembler->Int32Constant(kHoleNanUpper32)),
@ -1659,11 +1667,12 @@ void Builtins::Generate_ArrayIncludes(CodeStubAssembler* assembler) {
} }
Node* element_k = assembler->LoadFixedDoubleArrayElement( Node* element_k = assembler->LoadFixedDoubleArrayElement(
elements, index_var.value(), MachineType::Float64()); elements, index_var.value(), MachineType::Float64(), 0,
CodeStubAssembler::INTPTR_PARAMETERS);
assembler->BranchIfFloat64Equal(element_k, search_num.value(), assembler->BranchIfFloat64Equal(element_k, search_num.value(),
&return_true, &continue_loop); &return_true, &continue_loop);
assembler->Bind(&continue_loop); assembler->Bind(&continue_loop);
index_var.Bind(assembler->Int32Add(index_var.value(), int32_one)); index_var.Bind(assembler->IntPtrAdd(index_var.value(), intptr_one));
assembler->Goto(&not_nan_loop); assembler->Goto(&not_nan_loop);
} }
@ -1672,19 +1681,21 @@ void Builtins::Generate_ArrayIncludes(CodeStubAssembler* assembler) {
{ {
Label continue_loop(assembler); Label continue_loop(assembler);
assembler->GotoUnless( assembler->GotoUnless(
assembler->Int32LessThan(index_var.value(), len_var.value()), assembler->UintPtrLessThan(index_var.value(), len_var.value()),
&return_false); &return_false);
if (kPointerSize == kDoubleSize) { if (kPointerSize == kDoubleSize) {
Node* element = assembler->LoadFixedDoubleArrayElement( Node* element = assembler->LoadFixedDoubleArrayElement(
elements, index_var.value(), MachineType::Uint64()); elements, index_var.value(), MachineType::Uint64(), 0,
CodeStubAssembler::INTPTR_PARAMETERS);
Node* the_hole = assembler->Int64Constant(kHoleNanInt64); Node* the_hole = assembler->Int64Constant(kHoleNanInt64);
assembler->GotoIf(assembler->Word64Equal(element, the_hole), assembler->GotoIf(assembler->Word64Equal(element, the_hole),
&continue_loop); &continue_loop);
} else { } else {
Node* element_upper = assembler->LoadFixedDoubleArrayElement( Node* element_upper = assembler->LoadFixedDoubleArrayElement(
elements, index_var.value(), MachineType::Uint32(), elements, index_var.value(), MachineType::Uint32(),
kIeeeDoubleExponentWordOffset); kIeeeDoubleExponentWordOffset,
CodeStubAssembler::INTPTR_PARAMETERS);
assembler->GotoIf( assembler->GotoIf(
assembler->Word32Equal(element_upper, assembler->Word32Equal(element_upper,
assembler->Int32Constant(kHoleNanUpper32)), assembler->Int32Constant(kHoleNanUpper32)),
@ -1692,10 +1703,11 @@ void Builtins::Generate_ArrayIncludes(CodeStubAssembler* assembler) {
} }
Node* element_k = assembler->LoadFixedDoubleArrayElement( Node* element_k = assembler->LoadFixedDoubleArrayElement(
elements, index_var.value(), MachineType::Float64()); elements, index_var.value(), MachineType::Float64(), 0,
CodeStubAssembler::INTPTR_PARAMETERS);
assembler->BranchIfFloat64IsNaN(element_k, &return_true, &continue_loop); assembler->BranchIfFloat64IsNaN(element_k, &return_true, &continue_loop);
assembler->Bind(&continue_loop); assembler->Bind(&continue_loop);
index_var.Bind(assembler->Int32Add(index_var.value(), int32_one)); index_var.Bind(assembler->IntPtrAdd(index_var.value(), intptr_one));
assembler->Goto(&nan_loop); assembler->Goto(&nan_loop);
} }
@ -1703,26 +1715,28 @@ void Builtins::Generate_ArrayIncludes(CodeStubAssembler* assembler) {
assembler->Bind(&hole_loop); assembler->Bind(&hole_loop);
{ {
assembler->GotoUnless( assembler->GotoUnless(
assembler->Int32LessThan(index_var.value(), len_var.value()), assembler->UintPtrLessThan(index_var.value(), len_var.value()),
&return_false); &return_false);
if (kPointerSize == kDoubleSize) { if (kPointerSize == kDoubleSize) {
Node* element = assembler->LoadFixedDoubleArrayElement( Node* element = assembler->LoadFixedDoubleArrayElement(
elements, index_var.value(), MachineType::Uint64()); elements, index_var.value(), MachineType::Uint64(), 0,
CodeStubAssembler::INTPTR_PARAMETERS);
Node* the_hole = assembler->Int64Constant(kHoleNanInt64); Node* the_hole = assembler->Int64Constant(kHoleNanInt64);
assembler->GotoIf(assembler->Word64Equal(element, the_hole), assembler->GotoIf(assembler->Word64Equal(element, the_hole),
&return_true); &return_true);
} else { } else {
Node* element_upper = assembler->LoadFixedDoubleArrayElement( Node* element_upper = assembler->LoadFixedDoubleArrayElement(
elements, index_var.value(), MachineType::Uint32(), elements, index_var.value(), MachineType::Uint32(),
kIeeeDoubleExponentWordOffset); kIeeeDoubleExponentWordOffset,
CodeStubAssembler::INTPTR_PARAMETERS);
assembler->GotoIf( assembler->GotoIf(
assembler->Word32Equal(element_upper, assembler->Word32Equal(element_upper,
assembler->Int32Constant(kHoleNanUpper32)), assembler->Int32Constant(kHoleNanUpper32)),
&return_true); &return_true);
} }
index_var.Bind(assembler->Int32Add(index_var.value(), int32_one)); index_var.Bind(assembler->IntPtrAdd(index_var.value(), intptr_one));
assembler->Goto(&hole_loop); assembler->Goto(&hole_loop);
} }
} }
@ -1749,23 +1763,23 @@ void Builtins::Generate_ArrayIndexOf(CodeStubAssembler* assembler) {
Node* start_from = assembler->Parameter(2); Node* start_from = assembler->Parameter(2);
Node* context = assembler->Parameter(3 + 2); Node* context = assembler->Parameter(3 + 2);
Node* int32_zero = assembler->Int32Constant(0); Node* intptr_zero = assembler->IntPtrConstant(0);
Node* int32_one = assembler->Int32Constant(1); Node* intptr_one = assembler->IntPtrConstant(1);
Node* undefined = assembler->UndefinedConstant(); Node* undefined = assembler->UndefinedConstant();
Node* heap_number_map = assembler->HeapNumberMapConstant(); Node* heap_number_map = assembler->HeapNumberMapConstant();
Variable len_var(assembler, MachineRepresentation::kWord32), Variable len_var(assembler, MachineType::PointerRepresentation()),
index_var(assembler, MachineRepresentation::kWord32), index_var(assembler, MachineType::PointerRepresentation()),
start_from_var(assembler, MachineRepresentation::kWord32); start_from_var(assembler, MachineType::PointerRepresentation());
Label init_k(assembler), return_found(assembler), return_not_found(assembler), Label init_k(assembler), return_found(assembler), return_not_found(assembler),
call_runtime(assembler); call_runtime(assembler);
Label init_len(assembler); Label init_len(assembler);
index_var.Bind(int32_zero); index_var.Bind(intptr_zero);
len_var.Bind(int32_zero); len_var.Bind(intptr_zero);
// Take slow path if not a JSArray, if retrieving elements requires // Take slow path if not a JSArray, if retrieving elements requires
// traversing prototype, or if access checks are required. // traversing prototype, or if access checks are required.
@ -1778,7 +1792,7 @@ void Builtins::Generate_ArrayIndexOf(CodeStubAssembler* assembler) {
assembler->GotoUnless(assembler->WordIsSmi(len), &call_runtime); assembler->GotoUnless(assembler->WordIsSmi(len), &call_runtime);
len_var.Bind(assembler->SmiToWord(len)); len_var.Bind(assembler->SmiToWord(len));
assembler->Branch(assembler->Word32Equal(len_var.value(), int32_zero), assembler->Branch(assembler->WordEqual(len_var.value(), intptr_zero),
&return_not_found, &init_k); &return_not_found, &init_k);
} }
@ -1794,23 +1808,25 @@ void Builtins::Generate_ArrayIndexOf(CodeStubAssembler* assembler) {
assembler->Bind(&init_k_smi); assembler->Bind(&init_k_smi);
{ {
start_from_var.Bind(assembler->SmiToWord32(tagged_n)); start_from_var.Bind(assembler->SmiUntag(tagged_n));
assembler->Goto(&init_k_n); assembler->Goto(&init_k_n);
} }
assembler->Bind(&init_k_heap_num); assembler->Bind(&init_k_heap_num);
{ {
Label do_return_not_found(assembler); Label do_return_not_found(assembler);
Node* fp_len = assembler->ChangeInt32ToFloat64(len_var.value()); // This round is lossless for all valid lengths.
Node* fp_len = assembler->RoundIntPtrToFloat64(len_var.value());
Node* fp_n = assembler->LoadHeapNumberValue(tagged_n); Node* fp_n = assembler->LoadHeapNumberValue(tagged_n);
assembler->GotoIf(assembler->Float64GreaterThanOrEqual(fp_n, fp_len), assembler->GotoIf(assembler->Float64GreaterThanOrEqual(fp_n, fp_len),
&do_return_not_found); &do_return_not_found);
start_from_var.Bind(assembler->TruncateFloat64ToWord32(fp_n)); start_from_var.Bind(assembler->ChangeInt32ToIntPtr(
assembler->TruncateFloat64ToWord32(fp_n)));
assembler->Goto(&init_k_n); assembler->Goto(&init_k_n);
assembler->Bind(&do_return_not_found); assembler->Bind(&do_return_not_found);
{ {
index_var.Bind(int32_zero); index_var.Bind(intptr_zero);
assembler->Goto(&return_not_found); assembler->Goto(&return_not_found);
} }
} }
@ -1819,7 +1835,7 @@ void Builtins::Generate_ArrayIndexOf(CodeStubAssembler* assembler) {
{ {
Label if_positive(assembler), if_negative(assembler), done(assembler); Label if_positive(assembler), if_negative(assembler), done(assembler);
assembler->Branch( assembler->Branch(
assembler->Int32LessThan(start_from_var.value(), int32_zero), assembler->IntPtrLessThan(start_from_var.value(), intptr_zero),
&if_negative, &if_positive); &if_negative, &if_positive);
assembler->Bind(&if_positive); assembler->Bind(&if_positive);
@ -1831,15 +1847,15 @@ void Builtins::Generate_ArrayIndexOf(CodeStubAssembler* assembler) {
assembler->Bind(&if_negative); assembler->Bind(&if_negative);
{ {
index_var.Bind( index_var.Bind(
assembler->Int32Add(len_var.value(), start_from_var.value())); assembler->IntPtrAdd(len_var.value(), start_from_var.value()));
assembler->Branch( assembler->Branch(
assembler->Int32LessThan(index_var.value(), int32_zero), assembler->IntPtrLessThan(index_var.value(), intptr_zero),
&init_k_zero, &done); &init_k_zero, &done);
} }
assembler->Bind(&init_k_zero); assembler->Bind(&init_k_zero);
{ {
index_var.Bind(int32_zero); index_var.Bind(intptr_zero);
assembler->Goto(&done); assembler->Goto(&done);
} }
@ -1895,7 +1911,7 @@ void Builtins::Generate_ArrayIndexOf(CodeStubAssembler* assembler) {
search_type, assembler->Int32Constant(FIRST_NONSTRING_TYPE)), search_type, assembler->Int32Constant(FIRST_NONSTRING_TYPE)),
&string_loop); &string_loop);
assembler->GotoIf( assembler->GotoIf(
assembler->WordEqual(search_type, assembler->Word32Equal(search_type,
assembler->Int32Constant(SIMD128_VALUE_TYPE)), assembler->Int32Constant(SIMD128_VALUE_TYPE)),
&simd_loop); &simd_loop);
assembler->Goto(&ident_loop); assembler->Goto(&ident_loop);
@ -1903,28 +1919,28 @@ void Builtins::Generate_ArrayIndexOf(CodeStubAssembler* assembler) {
assembler->Bind(&ident_loop); assembler->Bind(&ident_loop);
{ {
assembler->GotoUnless( assembler->GotoUnless(
assembler->Int32LessThan(index_var.value(), len_var.value()), assembler->UintPtrLessThan(index_var.value(), len_var.value()),
&return_not_found); &return_not_found);
Node* element_k = Node* element_k = assembler->LoadFixedArrayElement(
assembler->LoadFixedArrayElement(elements, index_var.value()); elements, index_var.value(), 0, CodeStubAssembler::INTPTR_PARAMETERS);
assembler->GotoIf(assembler->WordEqual(element_k, search_element), assembler->GotoIf(assembler->WordEqual(element_k, search_element),
&return_found); &return_found);
index_var.Bind(assembler->Int32Add(index_var.value(), int32_one)); index_var.Bind(assembler->IntPtrAdd(index_var.value(), intptr_one));
assembler->Goto(&ident_loop); assembler->Goto(&ident_loop);
} }
assembler->Bind(&undef_loop); assembler->Bind(&undef_loop);
{ {
assembler->GotoUnless( assembler->GotoUnless(
assembler->Int32LessThan(index_var.value(), len_var.value()), assembler->UintPtrLessThan(index_var.value(), len_var.value()),
&return_not_found); &return_not_found);
Node* element_k = Node* element_k = assembler->LoadFixedArrayElement(
assembler->LoadFixedArrayElement(elements, index_var.value()); elements, index_var.value(), 0, CodeStubAssembler::INTPTR_PARAMETERS);
assembler->GotoIf(assembler->WordEqual(element_k, undefined), assembler->GotoIf(assembler->WordEqual(element_k, undefined),
&return_found); &return_found);
index_var.Bind(assembler->Int32Add(index_var.value(), int32_one)); index_var.Bind(assembler->IntPtrAdd(index_var.value(), intptr_one));
assembler->Goto(&undef_loop); assembler->Goto(&undef_loop);
} }
@ -1938,10 +1954,11 @@ void Builtins::Generate_ArrayIndexOf(CodeStubAssembler* assembler) {
{ {
Label continue_loop(assembler), not_smi(assembler); Label continue_loop(assembler), not_smi(assembler);
assembler->GotoUnless( assembler->GotoUnless(
assembler->Int32LessThan(index_var.value(), len_var.value()), assembler->UintPtrLessThan(index_var.value(), len_var.value()),
&return_not_found); &return_not_found);
Node* element_k = Node* element_k = assembler->LoadFixedArrayElement(
assembler->LoadFixedArrayElement(elements, index_var.value()); elements, index_var.value(), 0,
CodeStubAssembler::INTPTR_PARAMETERS);
assembler->GotoUnless(assembler->WordIsSmi(element_k), &not_smi); assembler->GotoUnless(assembler->WordIsSmi(element_k), &not_smi);
assembler->Branch( assembler->Branch(
assembler->Float64Equal(search_num.value(), assembler->Float64Equal(search_num.value(),
@ -1957,7 +1974,7 @@ void Builtins::Generate_ArrayIndexOf(CodeStubAssembler* assembler) {
&return_found, &continue_loop); &return_found, &continue_loop);
assembler->Bind(&continue_loop); assembler->Bind(&continue_loop);
index_var.Bind(assembler->Int32Add(index_var.value(), int32_one)); index_var.Bind(assembler->IntPtrAdd(index_var.value(), intptr_one));
assembler->Goto(&not_nan_loop); assembler->Goto(&not_nan_loop);
} }
} }
@ -1966,10 +1983,10 @@ void Builtins::Generate_ArrayIndexOf(CodeStubAssembler* assembler) {
{ {
Label continue_loop(assembler); Label continue_loop(assembler);
assembler->GotoUnless( assembler->GotoUnless(
assembler->Int32LessThan(index_var.value(), len_var.value()), assembler->UintPtrLessThan(index_var.value(), len_var.value()),
&return_not_found); &return_not_found);
Node* element_k = Node* element_k = assembler->LoadFixedArrayElement(
assembler->LoadFixedArrayElement(elements, index_var.value()); elements, index_var.value(), 0, CodeStubAssembler::INTPTR_PARAMETERS);
assembler->GotoIf(assembler->WordIsSmi(element_k), &continue_loop); assembler->GotoIf(assembler->WordIsSmi(element_k), &continue_loop);
assembler->GotoUnless(assembler->Int32LessThan( assembler->GotoUnless(assembler->Int32LessThan(
assembler->LoadInstanceType(element_k), assembler->LoadInstanceType(element_k),
@ -1985,7 +2002,7 @@ void Builtins::Generate_ArrayIndexOf(CodeStubAssembler* assembler) {
&return_found, &continue_loop); &return_found, &continue_loop);
assembler->Bind(&continue_loop); assembler->Bind(&continue_loop);
index_var.Bind(assembler->Int32Add(index_var.value(), int32_one)); index_var.Bind(assembler->IntPtrAdd(index_var.value(), intptr_one));
assembler->Goto(&string_loop); assembler->Goto(&string_loop);
} }
@ -1998,11 +2015,11 @@ void Builtins::Generate_ArrayIndexOf(CodeStubAssembler* assembler) {
assembler->Goto(&loop_body); assembler->Goto(&loop_body);
assembler->Bind(&loop_body); assembler->Bind(&loop_body);
assembler->GotoUnless( assembler->GotoUnless(
assembler->Int32LessThan(index_var.value(), len_var.value()), assembler->UintPtrLessThan(index_var.value(), len_var.value()),
&return_not_found); &return_not_found);
Node* element_k = Node* element_k = assembler->LoadFixedArrayElement(
assembler->LoadFixedArrayElement(elements, index_var.value()); elements, index_var.value(), 0, CodeStubAssembler::INTPTR_PARAMETERS);
assembler->GotoIf(assembler->WordIsSmi(element_k), &continue_loop); assembler->GotoIf(assembler->WordIsSmi(element_k), &continue_loop);
Node* map_k = assembler->LoadMap(element_k); Node* map_k = assembler->LoadMap(element_k);
@ -2010,7 +2027,7 @@ void Builtins::Generate_ArrayIndexOf(CodeStubAssembler* assembler) {
&return_found, &continue_loop); &return_found, &continue_loop);
assembler->Bind(&continue_loop); assembler->Bind(&continue_loop);
index_var.Bind(assembler->Int32Add(index_var.value(), int32_one)); index_var.Bind(assembler->IntPtrAdd(index_var.value(), intptr_one));
assembler->Goto(&loop_body); assembler->Goto(&loop_body);
} }
} }
@ -2039,14 +2056,15 @@ void Builtins::Generate_ArrayIndexOf(CodeStubAssembler* assembler) {
{ {
Label continue_loop(assembler); Label continue_loop(assembler);
assembler->GotoUnless( assembler->GotoUnless(
assembler->Int32LessThan(index_var.value(), len_var.value()), assembler->UintPtrLessThan(index_var.value(), len_var.value()),
&return_not_found); &return_not_found);
Node* element_k = assembler->LoadFixedDoubleArrayElement( Node* element_k = assembler->LoadFixedDoubleArrayElement(
elements, index_var.value(), MachineType::Float64()); elements, index_var.value(), MachineType::Float64(), 0,
CodeStubAssembler::INTPTR_PARAMETERS);
assembler->BranchIfFloat64Equal(element_k, search_num.value(), assembler->BranchIfFloat64Equal(element_k, search_num.value(),
&return_found, &continue_loop); &return_found, &continue_loop);
assembler->Bind(&continue_loop); assembler->Bind(&continue_loop);
index_var.Bind(assembler->Int32Add(index_var.value(), int32_one)); index_var.Bind(assembler->IntPtrAdd(index_var.value(), intptr_one));
assembler->Goto(&not_nan_loop); assembler->Goto(&not_nan_loop);
} }
} }
@ -2075,19 +2093,21 @@ void Builtins::Generate_ArrayIndexOf(CodeStubAssembler* assembler) {
{ {
Label continue_loop(assembler); Label continue_loop(assembler);
assembler->GotoUnless( assembler->GotoUnless(
assembler->Int32LessThan(index_var.value(), len_var.value()), assembler->UintPtrLessThan(index_var.value(), len_var.value()),
&return_not_found); &return_not_found);
if (kPointerSize == kDoubleSize) { if (kPointerSize == kDoubleSize) {
Node* element = assembler->LoadFixedDoubleArrayElement( Node* element = assembler->LoadFixedDoubleArrayElement(
elements, index_var.value(), MachineType::Uint64()); elements, index_var.value(), MachineType::Uint64(), 0,
CodeStubAssembler::INTPTR_PARAMETERS);
Node* the_hole = assembler->Int64Constant(kHoleNanInt64); Node* the_hole = assembler->Int64Constant(kHoleNanInt64);
assembler->GotoIf(assembler->Word64Equal(element, the_hole), assembler->GotoIf(assembler->Word64Equal(element, the_hole),
&continue_loop); &continue_loop);
} else { } else {
Node* element_upper = assembler->LoadFixedDoubleArrayElement( Node* element_upper = assembler->LoadFixedDoubleArrayElement(
elements, index_var.value(), MachineType::Uint32(), elements, index_var.value(), MachineType::Uint32(),
kIeeeDoubleExponentWordOffset); kIeeeDoubleExponentWordOffset,
CodeStubAssembler::INTPTR_PARAMETERS);
assembler->GotoIf( assembler->GotoIf(
assembler->Word32Equal(element_upper, assembler->Word32Equal(element_upper,
assembler->Int32Constant(kHoleNanUpper32)), assembler->Int32Constant(kHoleNanUpper32)),
@ -2095,11 +2115,12 @@ void Builtins::Generate_ArrayIndexOf(CodeStubAssembler* assembler) {
} }
Node* element_k = assembler->LoadFixedDoubleArrayElement( Node* element_k = assembler->LoadFixedDoubleArrayElement(
elements, index_var.value(), MachineType::Float64()); elements, index_var.value(), MachineType::Float64(), 0,
CodeStubAssembler::INTPTR_PARAMETERS);
assembler->BranchIfFloat64Equal(element_k, search_num.value(), assembler->BranchIfFloat64Equal(element_k, search_num.value(),
&return_found, &continue_loop); &return_found, &continue_loop);
assembler->Bind(&continue_loop); assembler->Bind(&continue_loop);
index_var.Bind(assembler->Int32Add(index_var.value(), int32_one)); index_var.Bind(assembler->IntPtrAdd(index_var.value(), intptr_one));
assembler->Goto(&not_nan_loop); assembler->Goto(&not_nan_loop);
} }
} }

54
src/code-stub-assembler.cc
View File

@ -1033,7 +1033,8 @@ Node* CodeStubAssembler::LoadMapPrototype(Node* map) {
} }
Node* CodeStubAssembler::LoadMapInstanceSize(Node* map) { Node* CodeStubAssembler::LoadMapInstanceSize(Node* map) {
return LoadObjectField(map, Map::kInstanceSizeOffset, MachineType::Uint8()); return ChangeUint32ToWord(
LoadObjectField(map, Map::kInstanceSizeOffset, MachineType::Uint8()));
} }
Node* CodeStubAssembler::LoadMapInobjectProperties(Node* map) { Node* CodeStubAssembler::LoadMapInobjectProperties(Node* map) {
@ -1041,9 +1042,19 @@ Node* CodeStubAssembler::LoadMapInobjectProperties(Node* map) {
STATIC_ASSERT(LAST_JS_OBJECT_TYPE == LAST_TYPE); STATIC_ASSERT(LAST_JS_OBJECT_TYPE == LAST_TYPE);
Assert(Int32GreaterThanOrEqual(LoadMapInstanceType(map), Assert(Int32GreaterThanOrEqual(LoadMapInstanceType(map),
Int32Constant(FIRST_JS_OBJECT_TYPE))); Int32Constant(FIRST_JS_OBJECT_TYPE)));
return LoadObjectField( return ChangeUint32ToWord(LoadObjectField(
map, Map::kInObjectPropertiesOrConstructorFunctionIndexOffset, map, Map::kInObjectPropertiesOrConstructorFunctionIndexOffset,
MachineType::Uint8()); MachineType::Uint8()));
}
Node* CodeStubAssembler::LoadMapConstructorFunctionIndex(Node* map) {
// See Map::GetConstructorFunctionIndex() for details.
STATIC_ASSERT(FIRST_PRIMITIVE_TYPE == FIRST_TYPE);
Assert(Int32LessThanOrEqual(LoadMapInstanceType(map),
Int32Constant(LAST_PRIMITIVE_TYPE)));
return ChangeUint32ToWord(LoadObjectField(
map, Map::kInObjectPropertiesOrConstructorFunctionIndexOffset,
MachineType::Uint8()));
} }
Node* CodeStubAssembler::LoadMapConstructor(Node* map) { Node* CodeStubAssembler::LoadMapConstructor(Node* map) {
@ -1138,13 +1149,13 @@ Node* CodeStubAssembler::LoadFixedDoubleArrayElement(
Node* CodeStubAssembler::LoadNativeContext(Node* context) { Node* CodeStubAssembler::LoadNativeContext(Node* context) {
return LoadFixedArrayElement(context, return LoadFixedArrayElement(context,
Int32Constant(Context::NATIVE_CONTEXT_INDEX)); IntPtrConstant(Context::NATIVE_CONTEXT_INDEX));
} }
Node* CodeStubAssembler::LoadJSArrayElementsMap(ElementsKind kind, Node* CodeStubAssembler::LoadJSArrayElementsMap(ElementsKind kind,
Node* native_context) { Node* native_context) {
return LoadFixedArrayElement(native_context, return LoadFixedArrayElement(native_context,
Int32Constant(Context::ArrayMapIndex(kind))); IntPtrConstant(Context::ArrayMapIndex(kind)));
} }
Node* CodeStubAssembler::StoreHeapNumberValue(Node* object, Node* value) { Node* CodeStubAssembler::StoreHeapNumberValue(Node* object, Node* value) {
@ -1411,8 +1422,9 @@ void CodeStubAssembler::FillFixedArrayWithValue(
if (constant_to && constant_from && if (constant_to && constant_from &&
(to - from) <= kElementLoopUnrollThreshold) { (to - from) <= kElementLoopUnrollThreshold) {
for (int i = from; i < to; ++i) { for (int i = from; i < to; ++i) {
Node* index = IntPtrConstant(i);
if (is_double) { if (is_double) {
Node* offset = ElementOffsetFromIndex(Int32Constant(i), kind, mode, Node* offset = ElementOffsetFromIndex(index, kind, INTPTR_PARAMETERS,
first_element_offset); first_element_offset);
// Don't use doubles to store the hole double, since manipulating the // Don't use doubles to store the hole double, since manipulating the
// signaling NaN used for the hole in C++, e.g. with bit_cast, will // signaling NaN used for the hole in C++, e.g. with bit_cast, will
@ -1428,14 +1440,14 @@ void CodeStubAssembler::FillFixedArrayWithValue(
} else { } else {
StoreNoWriteBarrier(MachineRepresentation::kWord32, array, offset, StoreNoWriteBarrier(MachineRepresentation::kWord32, array, offset,
double_hole); double_hole);
offset = ElementOffsetFromIndex(Int32Constant(i), kind, mode, offset = ElementOffsetFromIndex(index, kind, INTPTR_PARAMETERS,
first_element_offset + kPointerSize); first_element_offset + kPointerSize);
StoreNoWriteBarrier(MachineRepresentation::kWord32, array, offset, StoreNoWriteBarrier(MachineRepresentation::kWord32, array, offset,
double_hole); double_hole);
} }
} else { } else {
StoreFixedArrayElement(array, Int32Constant(i), value, StoreFixedArrayElement(array, index, value, SKIP_WRITE_BARRIER,
SKIP_WRITE_BARRIER); INTPTR_PARAMETERS);
} }
} }
} else { } else {
@ -1452,7 +1464,7 @@ void CodeStubAssembler::FillFixedArrayWithValue(
Bind(&decrement); Bind(&decrement);
current.Bind(IntPtrSub( current.Bind(IntPtrSub(
current.value(), current.value(),
Int32Constant(IsFastDoubleElementsKind(kind) ? kDoubleSize IntPtrConstant(IsFastDoubleElementsKind(kind) ? kDoubleSize
: kPointerSize))); : kPointerSize)));
if (is_double) { if (is_double) {
// Don't use doubles to store the hole double, since manipulating the // Don't use doubles to store the hole double, since manipulating the
@ -1495,8 +1507,9 @@ void CodeStubAssembler::CopyFixedArrayElements(ElementsKind kind,
bool double_elements = IsFastDoubleElementsKind(kind); bool double_elements = IsFastDoubleElementsKind(kind);
bool needs_write_barrier = bool needs_write_barrier =
barrier_mode == UPDATE_WRITE_BARRIER && !IsFastObjectElementsKind(kind); barrier_mode == UPDATE_WRITE_BARRIER && !IsFastObjectElementsKind(kind);
Node* limit_offset = ElementOffsetFromIndex( Node* limit_offset =
IntPtrConstant(0), kind, mode, FixedArray::kHeaderSize - kHeapObjectTag); ElementOffsetFromIndex(IntPtrOrSmiConstant(0, mode), kind, mode,
FixedArray::kHeaderSize - kHeapObjectTag);
Variable current_offset(this, MachineType::PointerRepresentation()); Variable current_offset(this, MachineType::PointerRepresentation());
current_offset.Bind(ElementOffsetFromIndex( current_offset.Bind(ElementOffsetFromIndex(
element_count, kind, mode, FixedArray::kHeaderSize - kHeapObjectTag)); element_count, kind, mode, FixedArray::kHeaderSize - kHeapObjectTag));
@ -2603,7 +2616,7 @@ void CodeStubAssembler::LoadPropertyFromFastObject(Node* object, Node* map,
Bind(&if_in_field); Bind(&if_in_field);
{ {
Node* field_index = Node* field_index =
BitFieldDecode<PropertyDetails::FieldIndexField>(details); BitFieldDecodeWord<PropertyDetails::FieldIndexField>(details);
Node* representation = Node* representation =
BitFieldDecode<PropertyDetails::RepresentationField>(details); BitFieldDecode<PropertyDetails::RepresentationField>(details);
@ -2612,15 +2625,15 @@ void CodeStubAssembler::LoadPropertyFromFastObject(Node* object, Node* map,
Label if_inobject(this), if_backing_store(this); Label if_inobject(this), if_backing_store(this);
Variable var_double_value(this, MachineRepresentation::kFloat64); Variable var_double_value(this, MachineRepresentation::kFloat64);
Label rebox_double(this, &var_double_value); Label rebox_double(this, &var_double_value);
BranchIfInt32LessThan(field_index, inobject_properties, &if_inobject, BranchIfUintPtrLessThan(field_index, inobject_properties, &if_inobject,
&if_backing_store); &if_backing_store);
Bind(&if_inobject); Bind(&if_inobject);
{ {
Comment("if_inobject"); Comment("if_inobject");
Node* field_offset = ChangeInt32ToIntPtr( Node* field_offset =
Int32Mul(Int32Sub(LoadMapInstanceSize(map), IntPtrMul(IntPtrSub(LoadMapInstanceSize(map),
Int32Sub(inobject_properties, field_index)), IntPtrSub(inobject_properties, field_index)),
Int32Constant(kPointerSize))); IntPtrConstant(kPointerSize));
Label if_double(this), if_tagged(this); Label if_double(this), if_tagged(this);
BranchIfWord32NotEqual(representation, BranchIfWord32NotEqual(representation,
@ -2647,7 +2660,7 @@ void CodeStubAssembler::LoadPropertyFromFastObject(Node* object, Node* map,
{ {
Comment("if_backing_store"); Comment("if_backing_store");
Node* properties = LoadProperties(object); Node* properties = LoadProperties(object);
field_index = Int32Sub(field_index, inobject_properties); field_index = IntPtrSub(field_index, inobject_properties);
Node* value = LoadFixedArrayElement(properties, field_index); Node* value = LoadFixedArrayElement(properties, field_index);
Label if_double(this), if_tagged(this); Label if_double(this), if_tagged(this);
@ -4101,7 +4114,8 @@ void CodeStubAssembler::LoadGlobalIC(const LoadICParameters* p) {
LoadWithVectorDescriptor descriptor(isolate()); LoadWithVectorDescriptor descriptor(isolate());
Node* native_context = LoadNativeContext(p->context); Node* native_context = LoadNativeContext(p->context);
Node* receiver = LoadFixedArrayElement( Node* receiver = LoadFixedArrayElement(
native_context, Int32Constant(Context::EXTENSION_INDEX)); native_context, IntPtrConstant(Context::EXTENSION_INDEX), 0,
INTPTR_PARAMETERS);
Node* fake_name = IntPtrConstant(0); Node* fake_name = IntPtrConstant(0);
TailCallStub(descriptor, handler, p->context, receiver, fake_name, p->slot, TailCallStub(descriptor, handler, p->context, receiver, fake_name, p->slot,
p->vector); p->vector);

12
src/code-stub-assembler.h
View File

@ -230,6 +230,8 @@ class CodeStubAssembler : public compiler::CodeAssembler {
compiler::Node* LoadMapInstanceSize(compiler::Node* map); compiler::Node* LoadMapInstanceSize(compiler::Node* map);
// Load the inobject properties count of a Map (valid only for JSObjects). // Load the inobject properties count of a Map (valid only for JSObjects).
compiler::Node* LoadMapInobjectProperties(compiler::Node* map); compiler::Node* LoadMapInobjectProperties(compiler::Node* map);
// Load the constructor function index of a Map (only for primitive maps).
compiler::Node* LoadMapConstructorFunctionIndex(compiler::Node* map);
// Load the constructor of a Map (equivalent to Map::GetConstructor()). // Load the constructor of a Map (equivalent to Map::GetConstructor()).
compiler::Node* LoadMapConstructor(compiler::Node* map); compiler::Node* LoadMapConstructor(compiler::Node* map);
@ -251,18 +253,16 @@ class CodeStubAssembler : public compiler::CodeAssembler {
// Load an array element from a FixedArray. // Load an array element from a FixedArray.
compiler::Node* LoadFixedArrayElement( compiler::Node* LoadFixedArrayElement(
compiler::Node* object, compiler::Node* int32_index, compiler::Node* object, compiler::Node* index, int additional_offset = 0,
int additional_offset = 0,
ParameterMode parameter_mode = INTEGER_PARAMETERS); ParameterMode parameter_mode = INTEGER_PARAMETERS);
// Load an array element from a FixedArray, untag it and return it as Word32. // Load an array element from a FixedArray, untag it and return it as Word32.
compiler::Node* LoadAndUntagToWord32FixedArrayElement( compiler::Node* LoadAndUntagToWord32FixedArrayElement(
compiler::Node* object, compiler::Node* int32_index, compiler::Node* object, compiler::Node* index, int additional_offset = 0,
int additional_offset = 0,
ParameterMode parameter_mode = INTEGER_PARAMETERS); ParameterMode parameter_mode = INTEGER_PARAMETERS);
// Load an array element from a FixedDoubleArray. // Load an array element from a FixedDoubleArray.
compiler::Node* LoadFixedDoubleArrayElement( compiler::Node* LoadFixedDoubleArrayElement(
compiler::Node* object, compiler::Node* int32_index, compiler::Node* object, compiler::Node* index, MachineType machine_type,
MachineType machine_type, int additional_offset = 0, int additional_offset = 0,
ParameterMode parameter_mode = INTEGER_PARAMETERS); ParameterMode parameter_mode = INTEGER_PARAMETERS);
// Context manipulation // Context manipulation

48
src/code-stubs.cc
View File

@ -2601,7 +2601,7 @@ void ToObjectStub::GenerateAssembly(CodeStubAssembler* assembler) const {
Node* context = assembler->Parameter(Descriptor::kContext); Node* context = assembler->Parameter(Descriptor::kContext);
Variable constructor_function_index_var(assembler, Variable constructor_function_index_var(assembler,
MachineRepresentation::kWord32); MachineType::PointerRepresentation());
assembler->Branch(assembler->WordIsSmi(object), &if_number, &if_notsmi); assembler->Branch(assembler->WordIsSmi(object), &if_number, &if_notsmi);
@ -2618,26 +2618,25 @@ void ToObjectStub::GenerateAssembly(CodeStubAssembler* assembler) const {
instance_type, assembler->Int32Constant(FIRST_JS_RECEIVER_TYPE)), instance_type, assembler->Int32Constant(FIRST_JS_RECEIVER_TYPE)),
&if_jsreceiver); &if_jsreceiver);
Node* constructor_function_index = assembler->LoadObjectField( Node* constructor_function_index =
map, Map::kInObjectPropertiesOrConstructorFunctionIndexOffset, assembler->LoadMapConstructorFunctionIndex(map);
MachineType::Uint8()); assembler->GotoIf(assembler->WordEqual(constructor_function_index,
assembler->GotoIf( assembler->IntPtrConstant(
assembler->Word32Equal( Map::kNoConstructorFunctionIndex)),
constructor_function_index,
assembler->Int32Constant(Map::kNoConstructorFunctionIndex)),
&if_noconstructor); &if_noconstructor);
constructor_function_index_var.Bind(constructor_function_index); constructor_function_index_var.Bind(constructor_function_index);
assembler->Goto(&if_wrapjsvalue); assembler->Goto(&if_wrapjsvalue);
assembler->Bind(&if_number); assembler->Bind(&if_number);
constructor_function_index_var.Bind( constructor_function_index_var.Bind(
assembler->Int32Constant(Context::NUMBER_FUNCTION_INDEX)); assembler->IntPtrConstant(Context::NUMBER_FUNCTION_INDEX));
assembler->Goto(&if_wrapjsvalue); assembler->Goto(&if_wrapjsvalue);
assembler->Bind(&if_wrapjsvalue); assembler->Bind(&if_wrapjsvalue);
Node* native_context = assembler->LoadNativeContext(context); Node* native_context = assembler->LoadNativeContext(context);
Node* constructor = assembler->LoadFixedArrayElement( Node* constructor = assembler->LoadFixedArrayElement(
native_context, constructor_function_index_var.value()); native_context, constructor_function_index_var.value(), 0,
CodeStubAssembler::INTPTR_PARAMETERS);
Node* initial_map = assembler->LoadObjectField( Node* initial_map = assembler->LoadObjectField(
constructor, JSFunction::kPrototypeOrInitialMapOffset); constructor, JSFunction::kPrototypeOrInitialMapOffset);
Node* js_value = assembler->Allocate(JSValue::kSize); Node* js_value = assembler->Allocate(JSValue::kSize);
@ -4427,9 +4426,10 @@ void LoadApiGetterStub::GenerateAssembly(CodeStubAssembler* assembler) const {
Node* holder = receiver; Node* holder = receiver;
Node* map = assembler->LoadMap(receiver); Node* map = assembler->LoadMap(receiver);
Node* descriptors = assembler->LoadMapDescriptors(map); Node* descriptors = assembler->LoadMapDescriptors(map);
Node* offset = Node* value_index =
assembler->Int32Constant(DescriptorArray::ToValueIndex(index())); assembler->IntPtrConstant(DescriptorArray::ToValueIndex(index()));
Node* callback = assembler->LoadFixedArrayElement(descriptors, offset); Node* callback = assembler->LoadFixedArrayElement(
descriptors, value_index, 0, CodeStubAssembler::INTPTR_PARAMETERS);
assembler->TailCallStub(CodeFactory::ApiGetter(isolate()), context, receiver, assembler->TailCallStub(CodeFactory::ApiGetter(isolate()), context, receiver,
holder, callback); holder, callback);
} }
@ -5193,7 +5193,7 @@ compiler::Node* FastNewClosureStub::Generate(CodeStubAssembler* assembler,
Label if_normal(assembler), if_generator(assembler), if_async(assembler), Label if_normal(assembler), if_generator(assembler), if_async(assembler),
if_class_constructor(assembler), if_function_without_prototype(assembler), if_class_constructor(assembler), if_function_without_prototype(assembler),
load_map(assembler); load_map(assembler);
Variable map_index(assembler, MachineRepresentation::kTagged); Variable map_index(assembler, MachineType::PointerRepresentation());
Node* is_not_normal = assembler->Word32And( Node* is_not_normal = assembler->Word32And(
compiler_hints, compiler_hints,
@ -5228,8 +5228,9 @@ compiler::Node* FastNewClosureStub::Generate(CodeStubAssembler* assembler,
assembler->Bind(&if_normal); assembler->Bind(&if_normal);
{ {
map_index.Bind(assembler->Select( map_index.Bind(assembler->Select(
is_strict, assembler->Int32Constant(Context::STRICT_FUNCTION_MAP_INDEX), is_strict,
assembler->Int32Constant(Context::SLOPPY_FUNCTION_MAP_INDEX))); assembler->IntPtrConstant(Context::STRICT_FUNCTION_MAP_INDEX),
assembler->IntPtrConstant(Context::SLOPPY_FUNCTION_MAP_INDEX)));
assembler->Goto(&load_map); assembler->Goto(&load_map);
} }
@ -5237,8 +5238,8 @@ compiler::Node* FastNewClosureStub::Generate(CodeStubAssembler* assembler,
{ {
map_index.Bind(assembler->Select( map_index.Bind(assembler->Select(
is_strict, is_strict,
assembler->Int32Constant(Context::STRICT_GENERATOR_FUNCTION_MAP_INDEX), assembler->IntPtrConstant(Context::STRICT_GENERATOR_FUNCTION_MAP_INDEX),
assembler->Int32Constant( assembler->IntPtrConstant(
Context::SLOPPY_GENERATOR_FUNCTION_MAP_INDEX))); Context::SLOPPY_GENERATOR_FUNCTION_MAP_INDEX)));
assembler->Goto(&load_map); assembler->Goto(&load_map);
} }
@ -5247,21 +5248,21 @@ compiler::Node* FastNewClosureStub::Generate(CodeStubAssembler* assembler,
{ {
map_index.Bind(assembler->Select( map_index.Bind(assembler->Select(
is_strict, is_strict,
assembler->Int32Constant(Context::STRICT_ASYNC_FUNCTION_MAP_INDEX), assembler->IntPtrConstant(Context::STRICT_ASYNC_FUNCTION_MAP_INDEX),
assembler->Int32Constant(Context::SLOPPY_ASYNC_FUNCTION_MAP_INDEX))); assembler->IntPtrConstant(Context::SLOPPY_ASYNC_FUNCTION_MAP_INDEX)));
assembler->Goto(&load_map); assembler->Goto(&load_map);
} }
assembler->Bind(&if_class_constructor); assembler->Bind(&if_class_constructor);
{ {
map_index.Bind( map_index.Bind(
assembler->Int32Constant(Context::STRICT_FUNCTION_MAP_INDEX)); assembler->IntPtrConstant(Context::STRICT_FUNCTION_MAP_INDEX));
assembler->Goto(&load_map); assembler->Goto(&load_map);
} }
assembler->Bind(&if_function_without_prototype); assembler->Bind(&if_function_without_prototype);
{ {
map_index.Bind(assembler->Int32Constant( map_index.Bind(assembler->IntPtrConstant(
Context::STRICT_FUNCTION_WITHOUT_PROTOTYPE_MAP_INDEX)); Context::STRICT_FUNCTION_WITHOUT_PROTOTYPE_MAP_INDEX));
assembler->Goto(&load_map); assembler->Goto(&load_map);
} }
@ -5272,7 +5273,8 @@ compiler::Node* FastNewClosureStub::Generate(CodeStubAssembler* assembler,
// as the map of the allocated object. // as the map of the allocated object.
Node* native_context = assembler->LoadNativeContext(context); Node* native_context = assembler->LoadNativeContext(context);
Node* map_slot_value = Node* map_slot_value =
assembler->LoadFixedArrayElement(native_context, map_index.value()); assembler->LoadFixedArrayElement(native_context, map_index.value(), 0,
CodeStubAssembler::INTPTR_PARAMETERS);
assembler->StoreMapNoWriteBarrier(result, map_slot_value); assembler->StoreMapNoWriteBarrier(result, map_slot_value);
// Initialize the rest of the function. // Initialize the rest of the function.