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Unified Diff: src/arm/code-stubs-arm.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/arm/code-stubs-arm.cc
diff --git a/src/arm/code-stubs-arm.cc b/src/arm/code-stubs-arm.cc
index 3047cd41c185b9de0b8f64b90f7260f6689ee59d..d1574caa9fa790a2197b8bde0a9413848a1f2960 100644
--- a/src/arm/code-stubs-arm.cc
+++ b/src/arm/code-stubs-arm.cc
@@ -5548,167 +5548,6 @@ void CallApiGetterStub::Generate(MacroAssembler* masm) {
kStackUnwindSpace, NULL, return_value_operand, NULL);
}
-namespace {
-
-void GetTypedArrayBackingStore(MacroAssembler* masm, Register backing_store,
- Register object, Register scratch,
- LowDwVfpRegister double_scratch) {
- Label offset_is_not_smi, done;
- __ ldr(scratch, FieldMemOperand(object, JSTypedArray::kBufferOffset));
- __ ldr(backing_store,
- FieldMemOperand(scratch, JSArrayBuffer::kBackingStoreOffset));
- __ ldr(scratch,
- FieldMemOperand(object, JSArrayBufferView::kByteOffsetOffset));
- __ JumpIfNotSmi(scratch, &offset_is_not_smi);
- // offset is smi
- __ add(backing_store, backing_store, Operand::SmiUntag(scratch));
- __ jmp(&done);
-
- // offset is a heap number
- __ bind(&offset_is_not_smi);
- __ vldr(double_scratch, scratch, HeapNumber::kValueOffset - kHeapObjectTag);
- __ vcvt_u32_f64(double_scratch.low(), double_scratch);
- __ vmov(scratch, double_scratch.low());
- __ add(backing_store, backing_store, scratch);
- __ bind(&done);
-}
-
-void TypedArrayJumpTable(MacroAssembler* masm, Register object,
- Register scratch, 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);
-
- __ ldr(scratch, FieldMemOperand(object, JSObject::kElementsOffset));
- __ ldr(scratch, FieldMemOperand(scratch, HeapObject::kMapOffset));
- __ ldrb(scratch, FieldMemOperand(scratch, Map::kInstanceTypeOffset));
- __ sub(scratch, scratch, Operand(static_cast<uint8_t>(FIXED_INT8_ARRAY_TYPE)),
- SetCC);
- __ Assert(ge, kOffsetOutOfRange);
-
- Label abort;
-
- {
- Assembler::BlockConstPoolScope scope(masm);
- __ add(pc, pc, Operand(scratch, LSL, 2));
- __ nop();
- __ b(i8); // Int8Array
- __ b(u8); // Uint8Array
- __ b(i16); // Int16Array
- __ b(u16); // Uint16Array
- __ b(i32); // Int32Array
- __ b(u32); // Uint32Array
- __ b(&abort); // Float32Array
- __ b(&abort); // Float64Array
- __ b(u8c); // Uint8ClampedArray
- }
-
- __ bind(&abort);
- __ Abort(kNoReason);
-}
-
-void ReturnInteger32(MacroAssembler* masm, DwVfpRegister dst, Register value,
- SwVfpRegister single_scratch, Label* use_heap_number) {
- Label not_smi;
- __ TrySmiTag(r0, value, &not_smi);
- __ Ret();
-
- __ bind(&not_smi);
- __ vmov(single_scratch, value);
- __ vcvt_f64_s32(dst, single_scratch);
- __ jmp(use_heap_number);
-}
-
-void ReturnUnsignedInteger32(MacroAssembler* masm, DwVfpRegister dst,
- Register value, SwVfpRegister single_scratch,
- Label* use_heap_number) {
- Label not_smi;
- __ cmp(value, Operand(0x40000000U));
- __ b(cs, &not_smi);
- __ SmiTag(r0, value);
- __ Ret();
-
- __ bind(&not_smi);
- __ vmov(single_scratch, value);
- __ vcvt_f64_u32(dst, single_scratch);
- __ jmp(use_heap_number);
-}
-
-void ReturnAllocatedHeapNumber(MacroAssembler* masm, DwVfpRegister value,
- Register scratch, Register scratch2,
- Register scratch3) {
- Label call_runtime;
- __ LoadRoot(scratch3, Heap::kHeapNumberMapRootIndex);
- __ AllocateHeapNumber(r0, scratch, scratch2, scratch3, &call_runtime);
- __ vstr(value, FieldMemOperand(r0, HeapNumber::kValueOffset));
- __ Ret();
-
- __ bind(&call_runtime);
- {
- FrameScope scope(masm, StackFrame::INTERNAL);
- __ CallRuntimeSaveDoubles(Runtime::kAllocateHeapNumber);
- __ vstr(value, FieldMemOperand(r0, HeapNumber::kValueOffset));
- }
- __ Ret();
-}
-
-} // anonymous namespace
-
-void AtomicsLoadStub::Generate(MacroAssembler* masm) {
- Register object = r1;
- Register index = r0; // Index is an untagged word32.
- Register backing_store = r2;
- Label i8, u8, i16, u16, i32, u32;
-
- GetTypedArrayBackingStore(masm, backing_store, object, r3, d0);
- TypedArrayJumpTable(masm, object, r3, &i8, &u8, &i16, &u16, &i32, &u32, &u8);
-
- __ bind(&i8);
- __ ldrsb(r0, MemOperand(backing_store, index));
- __ dmb(ISH);
- __ SmiTag(r0);
- __ Ret();
-
- __ bind(&u8);
- __ ldrb(r0, MemOperand(backing_store, index));
- __ dmb(ISH);
- __ SmiTag(r0);
- __ Ret();
-
- __ bind(&i16);
- __ ldrsh(r0, MemOperand(backing_store, index, LSL, 1));
- __ dmb(ISH);
- __ SmiTag(r0);
- __ Ret();
-
- __ bind(&u16);
- __ ldrh(r0, MemOperand(backing_store, index, LSL, 1));
- __ dmb(ISH);
- __ SmiTag(r0);
- __ Ret();
-
- Label use_heap_number;
-
- __ bind(&i32);
- __ ldr(r0, MemOperand(backing_store, index, LSL, 2));
- __ dmb(ISH);
- ReturnInteger32(masm, d0, r0, s2, &use_heap_number);
-
- __ bind(&u32);
- __ ldr(r0, MemOperand(backing_store, index, LSL, 2));
- __ dmb(ISH);
- ReturnUnsignedInteger32(masm, d0, r0, s2, &use_heap_number);
-
- __ bind(&use_heap_number);
- ReturnAllocatedHeapNumber(masm, d0, r1, r2, r3);
-}
-
#undef __
} // namespace internal
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