Chromium Code Reviews| Index: runtime/vm/intrinsifier_x64.cc |
| =================================================================== |
| --- runtime/vm/intrinsifier_x64.cc (revision 8417) |
| +++ 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 2. |
|
Vyacheslav Egorov (Google)
2012/06/08 11:32:53
times 4
srdjan
2012/06/08 14:55:24
Done.
|
| + 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 EBX is Smi, i.e, times 2. |
|
Vyacheslav Egorov (Google)
2012/06/08 11:32:53
times 4
srdjan
2012/06/08 14:55:24
Done.
|
| + 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; |
| } |