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path: root/deps/v8/src/builtins/builtins-wasm-gen.cc
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Diffstat (limited to 'deps/v8/src/builtins/builtins-wasm-gen.cc')
-rw-r--r--deps/v8/src/builtins/builtins-wasm-gen.cc191
1 files changed, 62 insertions, 129 deletions
diff --git a/deps/v8/src/builtins/builtins-wasm-gen.cc b/deps/v8/src/builtins/builtins-wasm-gen.cc
index 770f5da97b3..28efa39c67d 100644
--- a/deps/v8/src/builtins/builtins-wasm-gen.cc
+++ b/deps/v8/src/builtins/builtins-wasm-gen.cc
@@ -2,6 +2,8 @@
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
+#include "src/builtins/builtins-wasm-gen.h"
+
#include "src/builtins/builtins-utils-gen.h"
#include "src/codegen/code-stub-assembler.h"
#include "src/codegen/interface-descriptors.h"
@@ -12,71 +14,45 @@
namespace v8 {
namespace internal {
-class WasmBuiltinsAssembler : public CodeStubAssembler {
- public:
- explicit WasmBuiltinsAssembler(compiler::CodeAssemblerState* state)
- : CodeStubAssembler(state) {}
-
- protected:
- TNode<WasmInstanceObject> LoadInstanceFromFrame() {
- return CAST(
- LoadFromParentFrame(WasmCompiledFrameConstants::kWasmInstanceOffset));
- }
-
- TNode<Context> LoadContextFromInstance(TNode<WasmInstanceObject> instance) {
- return CAST(Load(MachineType::AnyTagged(), instance,
- IntPtrConstant(WasmInstanceObject::kNativeContextOffset -
- kHeapObjectTag)));
- }
-
- TNode<Smi> SmiFromUint32WithSaturation(TNode<Uint32T> value, uint32_t max) {
- DCHECK_LE(max, static_cast<uint32_t>(Smi::kMaxValue));
- TNode<Uint32T> capped_value = SelectConstant(
- Uint32LessThan(value, Uint32Constant(max)), value, Uint32Constant(max));
- return SmiFromUint32(capped_value);
- }
-};
-
-TF_BUILTIN(WasmStackGuard, WasmBuiltinsAssembler) {
- TNode<WasmInstanceObject> instance = LoadInstanceFromFrame();
- TNode<Context> context = LoadContextFromInstance(instance);
- TailCallRuntime(Runtime::kWasmStackGuard, context);
+TNode<WasmInstanceObject> WasmBuiltinsAssembler::LoadInstanceFromFrame() {
+ return CAST(LoadFromParentFrame(WasmFrameConstants::kWasmInstanceOffset));
}
-TF_BUILTIN(WasmStackOverflow, WasmBuiltinsAssembler) {
- TNode<WasmInstanceObject> instance = LoadInstanceFromFrame();
- TNode<Context> context = LoadContextFromInstance(instance);
- TailCallRuntime(Runtime::kThrowWasmStackOverflow, context);
+TNode<NativeContext> WasmBuiltinsAssembler::LoadContextFromInstance(
+ TNode<WasmInstanceObject> instance) {
+ return CAST(Load(MachineType::AnyTagged(), instance,
+ IntPtrConstant(WasmInstanceObject::kNativeContextOffset -
+ kHeapObjectTag)));
}
-TF_BUILTIN(WasmThrow, WasmBuiltinsAssembler) {
- TNode<Object> exception = CAST(Parameter(Descriptor::kException));
- TNode<WasmInstanceObject> instance = LoadInstanceFromFrame();
- TNode<Context> context = LoadContextFromInstance(instance);
- TailCallRuntime(Runtime::kThrow, context, exception);
+TNode<FixedArray> WasmBuiltinsAssembler::LoadTablesFromInstance(
+ TNode<WasmInstanceObject> instance) {
+ return LoadObjectField<FixedArray>(instance,
+ WasmInstanceObject::kTablesOffset);
}
-TF_BUILTIN(WasmRethrow, WasmBuiltinsAssembler) {
- TNode<Object> exception = CAST(Parameter(Descriptor::kException));
- TNode<WasmInstanceObject> instance = LoadInstanceFromFrame();
- TNode<Context> context = LoadContextFromInstance(instance);
-
- Label nullref(this, Label::kDeferred);
- GotoIf(TaggedEqual(NullConstant(), exception), &nullref);
+TNode<FixedArray> WasmBuiltinsAssembler::LoadExternalFunctionsFromInstance(
+ TNode<WasmInstanceObject> instance) {
+ return LoadObjectField<FixedArray>(
+ instance, WasmInstanceObject::kWasmExternalFunctionsOffset);
+}
- TailCallRuntime(Runtime::kReThrow, context, exception);
+TNode<Smi> WasmBuiltinsAssembler::SmiFromUint32WithSaturation(
+ TNode<Uint32T> value, uint32_t max) {
+ DCHECK_LE(max, static_cast<uint32_t>(Smi::kMaxValue));
+ TNode<Uint32T> capped_value = SelectConstant(
+ Uint32LessThan(value, Uint32Constant(max)), value, Uint32Constant(max));
+ return SmiFromUint32(capped_value);
+}
- BIND(&nullref);
- MessageTemplate message_id = MessageTemplate::kWasmTrapRethrowNullRef;
- TailCallRuntime(Runtime::kThrowWasmError, context,
- SmiConstant(static_cast<int>(message_id)));
+TF_BUILTIN(WasmFloat32ToNumber, WasmBuiltinsAssembler) {
+ TNode<Float32T> val = UncheckedCast<Float32T>(Parameter(Descriptor::kValue));
+ Return(ChangeFloat32ToTagged(val));
}
-TF_BUILTIN(WasmTraceMemory, WasmBuiltinsAssembler) {
- TNode<Smi> info = CAST(Parameter(Descriptor::kMemoryTracingInfo));
- TNode<WasmInstanceObject> instance = LoadInstanceFromFrame();
- TNode<Context> context = LoadContextFromInstance(instance);
- TailCallRuntime(Runtime::kWasmTraceMemory, context, info);
+TF_BUILTIN(WasmFloat64ToNumber, WasmBuiltinsAssembler) {
+ TNode<Float64T> val = UncheckedCast<Float64T>(Parameter(Descriptor::kValue));
+ Return(ChangeFloat64ToTagged(val));
}
TF_BUILTIN(WasmAtomicNotify, WasmBuiltinsAssembler) {
@@ -210,26 +186,6 @@ TF_BUILTIN(WasmI64AtomicWait64, WasmBuiltinsAssembler) {
Return(Unsigned(SmiToInt32(result_smi)));
}
-TF_BUILTIN(WasmMemoryGrow, WasmBuiltinsAssembler) {
- TNode<Int32T> num_pages =
- UncheckedCast<Int32T>(Parameter(Descriptor::kNumPages));
- Label num_pages_out_of_range(this, Label::kDeferred);
-
- TNode<BoolT> num_pages_fits_in_smi =
- IsValidPositiveSmi(ChangeInt32ToIntPtr(num_pages));
- GotoIfNot(num_pages_fits_in_smi, &num_pages_out_of_range);
-
- TNode<Smi> num_pages_smi = SmiFromInt32(num_pages);
- TNode<WasmInstanceObject> instance = LoadInstanceFromFrame();
- TNode<Context> context = LoadContextFromInstance(instance);
- TNode<Smi> ret_smi = CAST(
- CallRuntime(Runtime::kWasmMemoryGrow, context, instance, num_pages_smi));
- Return(SmiToInt32(ret_smi));
-
- BIND(&num_pages_out_of_range);
- Return(Int32Constant(-1));
-}
-
TF_BUILTIN(WasmTableInit, WasmBuiltinsAssembler) {
TNode<Uint32T> dst_raw =
UncheckedCast<Uint32T>(Parameter(Descriptor::kDestination));
@@ -290,65 +246,42 @@ TF_BUILTIN(WasmTableCopy, WasmBuiltinsAssembler) {
src_table, dst, src, size);
}
-TF_BUILTIN(WasmTableGet, WasmBuiltinsAssembler) {
- TNode<Int32T> entry_index =
- UncheckedCast<Int32T>(Parameter(Descriptor::kEntryIndex));
+TF_BUILTIN(WasmAllocateArray, WasmBuiltinsAssembler) {
TNode<WasmInstanceObject> instance = LoadInstanceFromFrame();
- TNode<Context> context = LoadContextFromInstance(instance);
- Label entry_index_out_of_range(this, Label::kDeferred);
-
- TNode<BoolT> entry_index_fits_in_smi =
- IsValidPositiveSmi(ChangeInt32ToIntPtr(entry_index));
- GotoIfNot(entry_index_fits_in_smi, &entry_index_out_of_range);
-
- TNode<Smi> entry_index_smi = SmiFromInt32(entry_index);
- TNode<Smi> table_index_smi = CAST(Parameter(Descriptor::kTableIndex));
-
- TailCallRuntime(Runtime::kWasmFunctionTableGet, context, instance,
- table_index_smi, entry_index_smi);
-
- BIND(&entry_index_out_of_range);
- MessageTemplate message_id =
- wasm::WasmOpcodes::TrapReasonToMessageId(wasm::kTrapTableOutOfBounds);
- TailCallRuntime(Runtime::kThrowWasmError, context,
- SmiConstant(static_cast<int>(message_id)));
+ TNode<Smi> map_index = CAST(Parameter(Descriptor::kMapIndex));
+ TNode<Smi> length = CAST(Parameter(Descriptor::kLength));
+ TNode<Smi> element_size = CAST(Parameter(Descriptor::kElementSize));
+ TNode<FixedArray> maps_list = LoadObjectField<FixedArray>(
+ instance, WasmInstanceObject::kManagedObjectMapsOffset);
+ TNode<Map> map = CAST(LoadFixedArrayElement(maps_list, map_index));
+ TNode<IntPtrT> untagged_length = SmiUntag(length);
+ // instance_size = WasmArray::kHeaderSize
+ // + RoundUp(element_size * length, kObjectAlignment)
+ TNode<IntPtrT> raw_size = IntPtrMul(SmiUntag(element_size), untagged_length);
+ TNode<IntPtrT> rounded_size =
+ WordAnd(IntPtrAdd(raw_size, IntPtrConstant(kObjectAlignmentMask)),
+ IntPtrConstant(~kObjectAlignmentMask));
+ TNode<IntPtrT> instance_size =
+ IntPtrAdd(IntPtrConstant(WasmArray::kHeaderSize), rounded_size);
+ TNode<WasmArray> result = UncheckedCast<WasmArray>(Allocate(instance_size));
+ StoreMap(result, map);
+ StoreObjectFieldNoWriteBarrier(result, WasmArray::kLengthOffset,
+ TruncateIntPtrToInt32(untagged_length));
+ Return(result);
}
-TF_BUILTIN(WasmTableSet, WasmBuiltinsAssembler) {
- TNode<Int32T> entry_index =
- UncheckedCast<Int32T>(Parameter(Descriptor::kEntryIndex));
+TF_BUILTIN(WasmAllocateStruct, WasmBuiltinsAssembler) {
TNode<WasmInstanceObject> instance = LoadInstanceFromFrame();
- TNode<Context> context = LoadContextFromInstance(instance);
- Label entry_index_out_of_range(this, Label::kDeferred);
-
- TNode<BoolT> entry_index_fits_in_smi =
- IsValidPositiveSmi(ChangeInt32ToIntPtr(entry_index));
- GotoIfNot(entry_index_fits_in_smi, &entry_index_out_of_range);
-
- TNode<Smi> entry_index_smi = SmiFromInt32(entry_index);
- TNode<Smi> table_index_smi = CAST(Parameter(Descriptor::kTableIndex));
- TNode<Object> value = CAST(Parameter(Descriptor::kValue));
- TailCallRuntime(Runtime::kWasmFunctionTableSet, context, instance,
- table_index_smi, entry_index_smi, value);
-
- BIND(&entry_index_out_of_range);
- MessageTemplate message_id =
- wasm::WasmOpcodes::TrapReasonToMessageId(wasm::kTrapTableOutOfBounds);
- TailCallRuntime(Runtime::kThrowWasmError, context,
- SmiConstant(static_cast<int>(message_id)));
+ TNode<Smi> map_index = CAST(Parameter(Descriptor::kMapIndex));
+ TNode<FixedArray> maps_list = LoadObjectField<FixedArray>(
+ instance, WasmInstanceObject::kManagedObjectMapsOffset);
+ TNode<Map> map = CAST(LoadFixedArrayElement(maps_list, map_index));
+ TNode<IntPtrT> instance_size =
+ TimesTaggedSize(LoadMapInstanceSizeInWords(map));
+ TNode<WasmStruct> result = UncheckedCast<WasmStruct>(Allocate(instance_size));
+ StoreMap(result, map);
+ Return(result);
}
-#define DECLARE_THROW_RUNTIME_FN(name) \
- TF_BUILTIN(ThrowWasm##name, WasmBuiltinsAssembler) { \
- TNode<WasmInstanceObject> instance = LoadInstanceFromFrame(); \
- TNode<Context> context = LoadContextFromInstance(instance); \
- MessageTemplate message_id = \
- wasm::WasmOpcodes::TrapReasonToMessageId(wasm::k##name); \
- TailCallRuntime(Runtime::kThrowWasmError, context, \
- SmiConstant(static_cast<int>(message_id))); \
- }
-FOREACH_WASM_TRAPREASON(DECLARE_THROW_RUNTIME_FN)
-#undef DECLARE_THROW_RUNTIME_FN
-
} // namespace internal
} // namespace v8
generated by cgit v1.2.3 (git 2.25.1) at 2024-08-28 00:17:48 +0300