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Side by Side Diff: src/code-stubs.h

Issue 866843003: Contribution of PowerPC port (continuation of 422063005) - AIX Common1 (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Created 5 years, 11 months ago
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1 // Copyright 2012 the V8 project authors. All rights reserved. 1 // Copyright 2012 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 #ifndef V8_CODE_STUBS_H_ 5 #ifndef V8_CODE_STUBS_H_
6 #define V8_CODE_STUBS_H_ 6 #define V8_CODE_STUBS_H_
7 7
8 #include "src/allocation.h" 8 #include "src/allocation.h"
9 #include "src/assembler.h" 9 #include "src/assembler.h"
10 #include "src/codegen.h" 10 #include "src/codegen.h"
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1510 std::ostream& operator<<(std::ostream& os, const CompareNilICStub::State& s); 1510 std::ostream& operator<<(std::ostream& os, const CompareNilICStub::State& s);
1511 1511
1512 1512
1513 class CEntryStub : public PlatformCodeStub { 1513 class CEntryStub : public PlatformCodeStub {
1514 public: 1514 public:
1515 CEntryStub(Isolate* isolate, int result_size, 1515 CEntryStub(Isolate* isolate, int result_size,
1516 SaveFPRegsMode save_doubles = kDontSaveFPRegs) 1516 SaveFPRegsMode save_doubles = kDontSaveFPRegs)
1517 : PlatformCodeStub(isolate) { 1517 : PlatformCodeStub(isolate) {
1518 minor_key_ = SaveDoublesBits::encode(save_doubles == kSaveFPRegs); 1518 minor_key_ = SaveDoublesBits::encode(save_doubles == kSaveFPRegs);
1519 DCHECK(result_size == 1 || result_size == 2); 1519 DCHECK(result_size == 1 || result_size == 2);
1520 #if _WIN64 || (V8_TARGET_ARCH_PPC64 && !ABI_RETURNS_OBJECT_PAIRS_IN_REGS) 1520 #if _WIN64 || V8_TARGET_ARCH_PPC
1521 minor_key_ = ResultSizeBits::update(minor_key_, result_size); 1521 minor_key_ = ResultSizeBits::update(minor_key_, result_size);
1522 #endif // _WIN64 1522 #endif // _WIN64
1523 } 1523 }
1524 1524
1525 // The version of this stub that doesn't save doubles is generated ahead of 1525 // The version of this stub that doesn't save doubles is generated ahead of
1526 // time, so it's OK to call it from other stubs that can't cope with GC during 1526 // time, so it's OK to call it from other stubs that can't cope with GC during
1527 // their code generation. On machines that always have gp registers (x64) we 1527 // their code generation. On machines that always have gp registers (x64) we
1528 // can generate both variants ahead of time. 1528 // can generate both variants ahead of time.
1529 static void GenerateAheadOfTime(Isolate* isolate); 1529 static void GenerateAheadOfTime(Isolate* isolate);
1530 1530
1531 private: 1531 private:
1532 bool save_doubles() const { return SaveDoublesBits::decode(minor_key_); } 1532 bool save_doubles() const { return SaveDoublesBits::decode(minor_key_); }
1533 #if _WIN64 || (V8_TARGET_ARCH_PPC64 && !ABI_RETURNS_OBJECT_PAIRS_IN_REGS) 1533 #if _WIN64 || V8_TARGET_ARCH_PPC
1534 int result_size() const { return ResultSizeBits::decode(minor_key_); } 1534 int result_size() const { return ResultSizeBits::decode(minor_key_); }
1535 #endif // _WIN64 1535 #endif // _WIN64
1536 1536
1537 bool NeedsImmovableCode() OVERRIDE; 1537 bool NeedsImmovableCode() OVERRIDE;
1538 1538
1539 class SaveDoublesBits : public BitField<bool, 0, 1> {}; 1539 class SaveDoublesBits : public BitField<bool, 0, 1> {};
1540 class ResultSizeBits : public BitField<int, 1, 3> {}; 1540 class ResultSizeBits : public BitField<int, 1, 3> {};
1541 1541
1542 DEFINE_NULL_CALL_INTERFACE_DESCRIPTOR(); 1542 DEFINE_NULL_CALL_INTERFACE_DESCRIPTOR();
1543 DEFINE_PLATFORM_CODE_STUB(CEntry, PlatformCodeStub); 1543 DEFINE_PLATFORM_CODE_STUB(CEntry, PlatformCodeStub);
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2634 2634
2635 #undef DEFINE_CALL_INTERFACE_DESCRIPTOR 2635 #undef DEFINE_CALL_INTERFACE_DESCRIPTOR
2636 #undef DEFINE_PLATFORM_CODE_STUB 2636 #undef DEFINE_PLATFORM_CODE_STUB
2637 #undef DEFINE_HANDLER_CODE_STUB 2637 #undef DEFINE_HANDLER_CODE_STUB
2638 #undef DEFINE_HYDROGEN_CODE_STUB 2638 #undef DEFINE_HYDROGEN_CODE_STUB
2639 #undef DEFINE_CODE_STUB 2639 #undef DEFINE_CODE_STUB
2640 #undef DEFINE_CODE_STUB_BASE 2640 #undef DEFINE_CODE_STUB_BASE
2641 } } // namespace v8::internal 2641 } } // namespace v8::internal
2642 2642
2643 #endif // V8_CODE_STUBS_H_ 2643 #endif // V8_CODE_STUBS_H_
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