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Unified Diff: src/x64/code-stubs-x64.cc

Issue 1891033002: [Atomics] Remove Atomics code stubs; use TF ops (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: remove s390 code stub Created 4 years, 8 months ago
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Index: src/x64/code-stubs-x64.cc
diff --git a/src/x64/code-stubs-x64.cc b/src/x64/code-stubs-x64.cc
index 81fa29b911a0eea55090215bf75df2b6356cb7a6..8604c83634f226d3eb7384f3aa4b9bde95604f7f 100644
--- a/src/x64/code-stubs-x64.cc
+++ b/src/x64/code-stubs-x64.cc
@@ -5564,170 +5564,6 @@ void CallApiGetterStub::Generate(MacroAssembler* masm) {
NULL);
}
-namespace {
-
-void GetTypedArrayBackingStore(MacroAssembler* masm, Register backing_store,
- Register object, Register scratch) {
- Label offset_is_not_smi, done;
- __ movp(scratch, FieldOperand(object, JSTypedArray::kBufferOffset));
- __ movp(backing_store,
- FieldOperand(scratch, JSArrayBuffer::kBackingStoreOffset));
-
- __ movp(scratch, FieldOperand(object, JSArrayBufferView::kByteOffsetOffset));
- __ JumpIfNotSmi(scratch, &offset_is_not_smi, Label::kNear);
- // offset is smi
- __ SmiToInteger32(scratch, scratch);
- __ addp(backing_store, scratch);
- __ jmp(&done, Label::kNear);
-
- // offset is a heap number
- __ bind(&offset_is_not_smi);
- __ Movsd(xmm0, FieldOperand(scratch, HeapNumber::kValueOffset));
- __ Cvttsd2siq(scratch, xmm0);
- __ addp(backing_store, scratch);
- __ bind(&done);
-}
-
-void TypedArrayJumpTablePrologue(MacroAssembler* masm, Register object,
- Register scratch, Register scratch2,
- Label* table) {
- __ movp(scratch, FieldOperand(object, JSObject::kElementsOffset));
- __ movp(scratch, FieldOperand(scratch, HeapObject::kMapOffset));
- __ movzxbl(scratch, FieldOperand(scratch, Map::kInstanceTypeOffset));
- __ subl(scratch, Immediate(static_cast<uint8_t>(FIXED_INT8_ARRAY_TYPE)));
- __ Assert(above_equal, kOffsetOutOfRange);
- __ leaq(scratch2, Operand(table));
- __ jmp(Operand(scratch2, scratch, times_8, 0));
-}
-
-void TypedArrayJumpTableEpilogue(MacroAssembler* masm, Label* table, Label* i8,
- Label* u8, Label* i16, Label* u16, Label* i32,
- Label* u32, Label* u8c) {
- STATIC_ASSERT(FIXED_UINT8_ARRAY_TYPE == FIXED_INT8_ARRAY_TYPE + 1);
- STATIC_ASSERT(FIXED_INT16_ARRAY_TYPE == FIXED_INT8_ARRAY_TYPE + 2);
- STATIC_ASSERT(FIXED_UINT16_ARRAY_TYPE == FIXED_INT8_ARRAY_TYPE + 3);
- STATIC_ASSERT(FIXED_INT32_ARRAY_TYPE == FIXED_INT8_ARRAY_TYPE + 4);
- STATIC_ASSERT(FIXED_UINT32_ARRAY_TYPE == FIXED_INT8_ARRAY_TYPE + 5);
- STATIC_ASSERT(FIXED_FLOAT32_ARRAY_TYPE == FIXED_INT8_ARRAY_TYPE + 6);
- STATIC_ASSERT(FIXED_FLOAT64_ARRAY_TYPE == FIXED_INT8_ARRAY_TYPE + 7);
- STATIC_ASSERT(FIXED_UINT8_CLAMPED_ARRAY_TYPE == FIXED_INT8_ARRAY_TYPE + 8);
-
- Label abort;
- __ bind(table);
- __ dq(i8); // Int8Array
- __ dq(u8); // Uint8Array
- __ dq(i16); // Int16Array
- __ dq(u16); // Uint16Array
- __ dq(i32); // Int32Array
- __ dq(u32); // Uint32Array
- __ dq(&abort); // Float32Array
- __ dq(&abort); // Float64Array
- __ dq(u8c); // Uint8ClampedArray
-
- __ bind(&abort);
- __ Abort(kNoReason);
-}
-
-void ReturnInteger32(MacroAssembler* masm, XMMRegister dst, Register value,
- Label* use_heap_number) {
- Label not_smi;
- if (!value.is(rax)) {
- __ movp(rax, value);
- }
- __ JumpIfNotValidSmiValue(rax, &not_smi, Label::kNear);
- __ Integer32ToSmi(rax, rax);
- __ Ret();
-
- __ bind(&not_smi);
- __ Cvtlsi2sd(dst, rax);
- __ jmp(use_heap_number);
-}
-
-void ReturnUnsignedInteger32(MacroAssembler* masm, XMMRegister dst,
- Register value, Label* use_heap_number) {
- Label not_smi;
- if (!value.is(rax)) {
- __ movp(rax, value);
- }
- __ JumpIfUIntNotValidSmiValue(rax, &not_smi, Label::kNear);
- __ Integer32ToSmi(rax, rax);
- __ Ret();
-
- __ bind(&not_smi);
- __ Cvtqsi2sd(dst, rax);
- __ jmp(use_heap_number);
-}
-
-void ReturnAllocatedHeapNumber(MacroAssembler* masm, XMMRegister value,
- Register scratch) {
- Label call_runtime;
- __ AllocateHeapNumber(rax, scratch, &call_runtime);
- __ Movsd(FieldOperand(rax, HeapNumber::kValueOffset), value);
- __ Ret();
-
- __ bind(&call_runtime);
- {
- FrameScope scope(masm, StackFrame::INTERNAL);
- __ CallRuntimeSaveDoubles(Runtime::kAllocateHeapNumber);
- __ Movsd(FieldOperand(rax, HeapNumber::kValueOffset), value);
- }
- __ Ret();
-}
-
-} // anonymous namespace
-
-void AtomicsLoadStub::Generate(MacroAssembler* masm) {
- Register object = rdx;
- Register index = rax; // Index is an untagged word32.
- Register backing_store = rbx;
- Label table;
-
- GetTypedArrayBackingStore(masm, backing_store, object, kScratchRegister);
- TypedArrayJumpTablePrologue(masm, object, rcx, kScratchRegister, &table);
-
- Label i8, u8, i16, u16, i32, u32;
-
- __ bind(&i8);
- __ movb(rax, Operand(backing_store, index, times_1, 0));
- __ movsxbl(rax, rax);
- __ Integer32ToSmi(rax, rax);
- __ Ret();
-
- __ bind(&u8);
- __ movb(rax, Operand(backing_store, index, times_1, 0));
- __ movzxbl(rax, rax);
- __ Integer32ToSmi(rax, rax);
- __ Ret();
-
- __ bind(&i16);
- __ movw(rax, Operand(backing_store, index, times_2, 0));
- __ movsxwl(rax, rax);
- __ Integer32ToSmi(rax, rax);
- __ Ret();
-
- __ bind(&u16);
- __ movw(rax, Operand(backing_store, index, times_2, 0));
- __ movzxwl(rax, rax);
- __ Integer32ToSmi(rax, rax);
- __ Ret();
-
- Label use_heap_number;
-
- __ bind(&i32);
- __ movl(rax, Operand(backing_store, index, times_4, 0));
- ReturnInteger32(masm, xmm0, rax, &use_heap_number);
-
- __ bind(&u32);
- __ movl(rax, Operand(backing_store, index, times_4, 0));
- ReturnUnsignedInteger32(masm, xmm0, rax, &use_heap_number);
-
- __ bind(&use_heap_number);
- ReturnAllocatedHeapNumber(masm, xmm0, rcx);
-
- TypedArrayJumpTableEpilogue(masm, &table, &i8, &u8, &i16, &u16, &i32, &u32,
- &u8);
-}
-
#undef __
} // namespace internal
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