Chromium Code Reviews
chromiumcodereview-hr@appspot.gserviceaccount.com (chromiumcodereview-hr) | Please choose your nickname with Settings | Help | Chromium Project | Gerrit Changes | Sign out
(234)

Side by Side Diff: src/ppc/code-stubs-ppc.cc

Issue 2626893005: Revert of Internalize strings in-place (Closed)
Patch Set: rebased Created 3 years, 11 months ago
Use n/p to move between diff chunks; N/P to move between comments. Draft comments are only viewable by you.
Jump to:
View unified diff | Download patch
« no previous file with comments | « src/objects-printer.cc ('k') | src/ppc/codegen-ppc.cc » ('j') | no next file with comments »
Toggle Intra-line Diffs ('i') | Expand Comments ('e') | Collapse Comments ('c') | Show Comments Hide Comments ('s')
OLDNEW
1 // Copyright 2014 the V8 project authors. All rights reserved. 1 // Copyright 2014 the V8 project authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #if V8_TARGET_ARCH_PPC 5 #if V8_TARGET_ARCH_PPC
6 6
7 #include "src/code-stubs.h" 7 #include "src/code-stubs.h"
8 #include "src/api-arguments.h" 8 #include "src/api-arguments.h"
9 #include "src/base/bits.h" 9 #include "src/base/bits.h"
10 #include "src/bootstrapper.h" 10 #include "src/bootstrapper.h"
(...skipping 1356 matching lines...) Expand 10 before | Expand all | Expand 10 after
1367 // and go to (1). Otherwise bail out to runtime. 1367 // and go to (1). Otherwise bail out to runtime.
1368 // (4) Sequential string. Load regexp code according to encoding. 1368 // (4) Sequential string. Load regexp code according to encoding.
1369 // (E) Carry on. 1369 // (E) Carry on.
1370 /// [...] 1370 /// [...]
1371 1371
1372 // Deferred code at the end of the stub: 1372 // Deferred code at the end of the stub:
1373 // (5) Long external string? If not, go to (7). 1373 // (5) Long external string? If not, go to (7).
1374 // (6) External string. Make it, offset-wise, look like a sequential string. 1374 // (6) External string. Make it, offset-wise, look like a sequential string.
1375 // Go to (4). 1375 // Go to (4).
1376 // (7) Short external string or not a string? If yes, bail out to runtime. 1376 // (7) Short external string or not a string? If yes, bail out to runtime.
1377 // (8) Sliced or thin string. Replace subject with parent. Go to (1). 1377 // (8) Sliced string. Replace subject with parent. Go to (1).
1378 1378
1379 Label seq_string /* 4 */, external_string /* 6 */, check_underlying /* 1 */, 1379 Label seq_string /* 4 */, external_string /* 6 */, check_underlying /* 1 */,
1380 not_seq_nor_cons /* 5 */, not_long_external /* 7 */; 1380 not_seq_nor_cons /* 5 */, not_long_external /* 7 */;
1381 1381
1382 __ bind(&check_underlying); 1382 __ bind(&check_underlying);
1383 __ LoadP(r3, FieldMemOperand(subject, HeapObject::kMapOffset)); 1383 __ LoadP(r3, FieldMemOperand(subject, HeapObject::kMapOffset));
1384 __ lbz(r3, FieldMemOperand(r3, Map::kInstanceTypeOffset)); 1384 __ lbz(r3, FieldMemOperand(r3, Map::kInstanceTypeOffset));
1385 1385
1386 // (1) Sequential string? If yes, go to (4). 1386 // (1) Sequential string? If yes, go to (4).
1387 1387
1388 STATIC_ASSERT((kIsNotStringMask | kStringRepresentationMask | 1388 STATIC_ASSERT((kIsNotStringMask | kStringRepresentationMask |
1389 kShortExternalStringMask) == 0xa7); 1389 kShortExternalStringMask) == 0xa7);
1390 __ andi(r4, r3, Operand(kIsNotStringMask | kStringRepresentationMask | 1390 __ andi(r4, r3, Operand(kIsNotStringMask | kStringRepresentationMask |
1391 kShortExternalStringMask)); 1391 kShortExternalStringMask));
1392 STATIC_ASSERT((kStringTag | kSeqStringTag) == 0); 1392 STATIC_ASSERT((kStringTag | kSeqStringTag) == 0);
1393 __ beq(&seq_string, cr0); // Go to (4). 1393 __ beq(&seq_string, cr0); // Go to (4).
1394 1394
1395 // (2) Sequential or cons? If not, go to (5). 1395 // (2) Sequential or cons? If not, go to (5).
1396 STATIC_ASSERT(kConsStringTag < kExternalStringTag); 1396 STATIC_ASSERT(kConsStringTag < kExternalStringTag);
1397 STATIC_ASSERT(kSlicedStringTag > kExternalStringTag); 1397 STATIC_ASSERT(kSlicedStringTag > kExternalStringTag);
1398 STATIC_ASSERT(kThinStringTag > kExternalStringTag);
1399 STATIC_ASSERT(kIsNotStringMask > kExternalStringTag); 1398 STATIC_ASSERT(kIsNotStringMask > kExternalStringTag);
1400 STATIC_ASSERT(kShortExternalStringTag > kExternalStringTag); 1399 STATIC_ASSERT(kShortExternalStringTag > kExternalStringTag);
1401 STATIC_ASSERT(kExternalStringTag < 0xffffu); 1400 STATIC_ASSERT(kExternalStringTag < 0xffffu);
1402 __ cmpi(r4, Operand(kExternalStringTag)); 1401 __ cmpi(r4, Operand(kExternalStringTag));
1403 __ bge(&not_seq_nor_cons); // Go to (5). 1402 __ bge(&not_seq_nor_cons); // Go to (5).
1404 1403
1405 // (3) Cons string. Check that it's flat. 1404 // (3) Cons string. Check that it's flat.
1406 // Replace subject with first string and reload instance type. 1405 // Replace subject with first string and reload instance type.
1407 __ LoadP(r3, FieldMemOperand(subject, ConsString::kSecondOffset)); 1406 __ LoadP(r3, FieldMemOperand(subject, ConsString::kSecondOffset));
1408 __ CompareRoot(r3, Heap::kempty_stringRootIndex); 1407 __ CompareRoot(r3, Heap::kempty_stringRootIndex);
(...skipping 256 matching lines...) Expand 10 before | Expand all | Expand 10 after
1665 __ subi(subject, subject, 1664 __ subi(subject, subject,
1666 Operand(SeqTwoByteString::kHeaderSize - kHeapObjectTag)); 1665 Operand(SeqTwoByteString::kHeaderSize - kHeapObjectTag));
1667 __ b(&seq_string); // Go to (4). 1666 __ b(&seq_string); // Go to (4).
1668 1667
1669 // (7) Short external string or not a string? If yes, bail out to runtime. 1668 // (7) Short external string or not a string? If yes, bail out to runtime.
1670 __ bind(&not_long_external); 1669 __ bind(&not_long_external);
1671 STATIC_ASSERT(kNotStringTag != 0 && kShortExternalStringTag != 0); 1670 STATIC_ASSERT(kNotStringTag != 0 && kShortExternalStringTag != 0);
1672 __ andi(r0, r4, Operand(kIsNotStringMask | kShortExternalStringMask)); 1671 __ andi(r0, r4, Operand(kIsNotStringMask | kShortExternalStringMask));
1673 __ bne(&runtime, cr0); 1672 __ bne(&runtime, cr0);
1674 1673
1675 // (8) Sliced or thin string. Replace subject with parent. Go to (4). 1674 // (8) Sliced string. Replace subject with parent. Go to (4).
1676 Label thin_string;
1677 __ cmpi(r4, Operand(kThinStringTag));
1678 __ beq(&thin_string);
1679 // Load offset into r11 and replace subject string with parent. 1675 // Load offset into r11 and replace subject string with parent.
1680 __ LoadP(r11, FieldMemOperand(subject, SlicedString::kOffsetOffset)); 1676 __ LoadP(r11, FieldMemOperand(subject, SlicedString::kOffsetOffset));
1681 __ SmiUntag(r11); 1677 __ SmiUntag(r11);
1682 __ LoadP(subject, FieldMemOperand(subject, SlicedString::kParentOffset)); 1678 __ LoadP(subject, FieldMemOperand(subject, SlicedString::kParentOffset));
1683 __ b(&check_underlying); // Go to (4). 1679 __ b(&check_underlying); // Go to (4).
1684
1685 __ bind(&thin_string);
1686 __ LoadP(subject, FieldMemOperand(subject, ThinString::kActualOffset));
1687 __ b(&check_underlying); // Go to (4).
1688 #endif // V8_INTERPRETED_REGEXP 1680 #endif // V8_INTERPRETED_REGEXP
1689 } 1681 }
1690 1682
1691 1683
1692 static void CallStubInRecordCallTarget(MacroAssembler* masm, CodeStub* stub) { 1684 static void CallStubInRecordCallTarget(MacroAssembler* masm, CodeStub* stub) {
1693 // r3 : number of arguments to the construct function 1685 // r3 : number of arguments to the construct function
1694 // r4 : the function to call 1686 // r4 : the function to call
1695 // r5 : feedback vector 1687 // r5 : feedback vector
1696 // r6 : slot in feedback vector (Smi) 1688 // r6 : slot in feedback vector (Smi)
1697 FrameAndConstantPoolScope scope(masm, StackFrame::INTERNAL); 1689 FrameAndConstantPoolScope scope(masm, StackFrame::INTERNAL);
(...skipping 2654 matching lines...) Expand 10 before | Expand all | Expand 10 after
4352 fp, (PropertyCallbackArguments::kReturnValueOffset + 3) * kPointerSize); 4344 fp, (PropertyCallbackArguments::kReturnValueOffset + 3) * kPointerSize);
4353 CallApiFunctionAndReturn(masm, api_function_address, thunk_ref, 4345 CallApiFunctionAndReturn(masm, api_function_address, thunk_ref,
4354 kStackUnwindSpace, NULL, return_value_operand, NULL); 4346 kStackUnwindSpace, NULL, return_value_operand, NULL);
4355 } 4347 }
4356 4348
4357 #undef __ 4349 #undef __
4358 } // namespace internal 4350 } // namespace internal
4359 } // namespace v8 4351 } // namespace v8
4360 4352
4361 #endif // V8_TARGET_ARCH_PPC 4353 #endif // V8_TARGET_ARCH_PPC
OLDNEW
« no previous file with comments | « src/objects-printer.cc ('k') | src/ppc/codegen-ppc.cc » ('j') | no next file with comments »

Powered by Google App Engine
This is Rietveld 408576698