| Index: runtime/vm/intrinsifier_x64.cc
|
| ===================================================================
|
| --- runtime/vm/intrinsifier_x64.cc (revision 8440)
|
| +++ runtime/vm/intrinsifier_x64.cc (working copy)
|
| @@ -116,17 +116,69 @@
|
| }
|
|
|
|
|
| +// Access growable object array at specified index.
|
| +// On stack: growable array (+2), index (+1), return-address (+0).
|
| bool Intrinsifier::GrowableArray_getIndexed(Assembler* assembler) {
|
| + Label fall_through;
|
| + __ movq(RCX, Address(RSP, + 1 * kWordSize)); // Index.
|
| + __ movq(RAX, Address(RSP, + 2 * kWordSize)); // GrowableArray.
|
| + __ testq(RCX, Immediate(kSmiTagMask));
|
| + __ j(NOT_ZERO, &fall_through, Assembler::kNearJump); // Non-smi index.
|
| + // Range check using _length field.
|
| + __ cmpq(RCX, FieldAddress(RAX, GrowableObjectArray::length_offset()));
|
| + // Runtime throws exception.
|
| + __ j(ABOVE_EQUAL, &fall_through, Assembler::kNearJump);
|
| + __ movq(RAX, FieldAddress(RAX, GrowableObjectArray::data_offset())); // data.
|
| +
|
| + // Note that RCX is Smi, i.e, times 4.
|
| + ASSERT(kSmiTagShift == 1);
|
| + __ movq(RAX, FieldAddress(RAX, RCX, TIMES_4, sizeof(RawArray)));
|
| + __ ret();
|
| + __ Bind(&fall_through);
|
| return false;
|
| }
|
|
|
|
|
| +// Set value into growable object array at specified index.
|
| +// On stack: growable array (+3), index (+2), value (+1), return-address (+0).
|
| bool Intrinsifier::GrowableArray_setIndexed(Assembler* assembler) {
|
| + if (FLAG_enable_type_checks) {
|
| + return false;
|
| + }
|
| + __ movq(RDX, Address(RSP, + 1 * kWordSize)); // Value.
|
| + __ movq(RCX, Address(RSP, + 2 * kWordSize)); // Index.
|
| + __ movq(RAX, Address(RSP, + 3 * kWordSize)); // GrowableArray.
|
| + Label fall_through;
|
| + __ testq(RCX, Immediate(kSmiTagMask));
|
| + __ j(NOT_ZERO, &fall_through, Assembler::kNearJump); // Non-smi index.
|
| + // Range check using _length field.
|
| + __ cmpq(RCX, FieldAddress(RAX, GrowableObjectArray::length_offset()));
|
| + // Runtime throws exception.
|
| + __ j(ABOVE_EQUAL, &fall_through, Assembler::kNearJump);
|
| + __ movq(RAX, FieldAddress(RAX, GrowableObjectArray::data_offset())); // data.
|
| + // Note that RCX is Smi, i.e, times 4.
|
| + ASSERT(kSmiTagShift == 1);
|
| + __ StoreIntoObject(RAX,
|
| + FieldAddress(RAX, RCX, TIMES_4, sizeof(RawArray)),
|
| + RDX);
|
| + __ ret();
|
| + __ Bind(&fall_through);
|
| return false;
|
| }
|
|
|
|
|
| +// Set length of growable object array.
|
| +// On stack: growable array (+2), length (+1), return-address (+0).
|
| bool Intrinsifier::GrowableArray_setLength(Assembler* assembler) {
|
| + Label fall_through;
|
| + __ movq(RAX, Address(RSP, + 2 * kWordSize)); // Growable array.
|
| + __ movq(RCX, Address(RSP, + 1 * kWordSize)); // Length.
|
| + __ movq(RDX, FieldAddress(RAX, GrowableObjectArray::data_offset()));
|
| + __ cmpq(RCX, FieldAddress(RDX, Array::length_offset()));
|
| + __ j(ABOVE, &fall_through, Assembler::kNearJump);
|
| + __ movq(FieldAddress(RAX, GrowableObjectArray::length_offset()), RCX);
|
| + __ ret();
|
| + __ Bind(&fall_through);
|
| return false;
|
| }
|
|
|
|
|