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Issue 160584: Add support to the CFG builder for non-short-circuited binary... (Closed) Base URL: http://v8.googlecode.com/svn/branches/bleeding_edge/
Patch Set: '' Created 11 years, 4 months ago
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1 // Copyright 2009 the V8 project authors. All rights reserved. 1 // Copyright 2009 the V8 project authors. All rights reserved.
2 // Redistribution and use in source and binary forms, with or without 2 // Redistribution and use in source and binary forms, with or without
3 // modification, are permitted provided that the following conditions are 3 // modification, are permitted provided that the following conditions are
4 // met: 4 // met:
5 // 5 //
6 // * Redistributions of source code must retain the above copyright 6 // * Redistributions of source code must retain the above copyright
7 // notice, this list of conditions and the following disclaimer. 7 // notice, this list of conditions and the following disclaimer.
8 // * Redistributions in binary form must reproduce the above 8 // * Redistributions in binary form must reproduce the above
9 // copyright notice, this list of conditions and the following 9 // copyright notice, this list of conditions and the following
10 // disclaimer in the documentation and/or other materials provided 10 // disclaimer in the documentation and/or other materials provided
(...skipping 4516 matching lines...) Expand 10 before | Expand all | Expand 10 after
4527 right_side = Result(right_reg); 4527 right_side = Result(right_reg);
4528 __ cmpl(left_side.reg(), right_side.reg()); 4528 __ cmpl(left_side.reg(), right_side.reg());
4529 right_side.Unuse(); 4529 right_side.Unuse();
4530 left_side.Unuse(); 4530 left_side.Unuse();
4531 dest->Split(cc); 4531 dest->Split(cc);
4532 } 4532 }
4533 } 4533 }
4534 } 4534 }
4535 4535
4536 4536
4537 // Flag that indicates whether or not the code that handles smi arguments
4538 // should be placed in the stub, inlined, or omitted entirely.
4539 enum GenericBinaryFlags {
4540 SMI_CODE_IN_STUB,
4541 SMI_CODE_INLINED
4542 };
4543
4544
4545 class FloatingPointHelper : public AllStatic { 4537 class FloatingPointHelper : public AllStatic {
4546 public: 4538 public:
4547 // Code pattern for loading a floating point value. Input value must 4539 // Code pattern for loading a floating point value. Input value must
4548 // be either a smi or a heap number object (fp value). Requirements: 4540 // be either a smi or a heap number object (fp value). Requirements:
4549 // operand in src register. Returns operand as floating point number 4541 // operand in src register. Returns operand as floating point number
4550 // in XMM register 4542 // in XMM register
4551 static void LoadFloatOperand(MacroAssembler* masm, 4543 static void LoadFloatOperand(MacroAssembler* masm,
4552 Register src, 4544 Register src,
4553 XMMRegister dst); 4545 XMMRegister dst);
4554 // Code pattern for loading floating point values. Input values must 4546 // Code pattern for loading floating point values. Input values must
(...skipping 31 matching lines...) Expand 10 before | Expand all | Expand 10 after
4586 Label* non_float); 4578 Label* non_float);
4587 // Allocate a heap number in new space with undefined value. 4579 // Allocate a heap number in new space with undefined value.
4588 // Returns tagged pointer in result, or jumps to need_gc if new space is full. 4580 // Returns tagged pointer in result, or jumps to need_gc if new space is full.
4589 static void AllocateHeapNumber(MacroAssembler* masm, 4581 static void AllocateHeapNumber(MacroAssembler* masm,
4590 Label* need_gc, 4582 Label* need_gc,
4591 Register scratch, 4583 Register scratch,
4592 Register result); 4584 Register result);
4593 }; 4585 };
4594 4586
4595 4587
4596 class GenericBinaryOpStub: public CodeStub {
4597 public:
4598 GenericBinaryOpStub(Token::Value op,
4599 OverwriteMode mode,
4600 GenericBinaryFlags flags)
4601 : op_(op), mode_(mode), flags_(flags) {
4602 ASSERT(OpBits::is_valid(Token::NUM_TOKENS));
4603 }
4604
4605 void GenerateSmiCode(MacroAssembler* masm, Label* slow);
4606
4607 private:
4608 Token::Value op_;
4609 OverwriteMode mode_;
4610 GenericBinaryFlags flags_;
4611
4612 const char* GetName();
4613
4614 #ifdef DEBUG
4615 void Print() {
4616 PrintF("GenericBinaryOpStub (op %s), (mode %d, flags %d)\n",
4617 Token::String(op_),
4618 static_cast<int>(mode_),
4619 static_cast<int>(flags_));
4620 }
4621 #endif
4622
4623 // Minor key encoding in 16 bits FOOOOOOOOOOOOOMM.
4624 class ModeBits: public BitField<OverwriteMode, 0, 2> {};
4625 class OpBits: public BitField<Token::Value, 2, 13> {};
4626 class FlagBits: public BitField<GenericBinaryFlags, 15, 1> {};
4627
4628 Major MajorKey() { return GenericBinaryOp; }
4629 int MinorKey() {
4630 // Encode the parameters in a unique 16 bit value.
4631 return OpBits::encode(op_)
4632 | ModeBits::encode(mode_)
4633 | FlagBits::encode(flags_);
4634 }
4635 void Generate(MacroAssembler* masm);
4636 };
4637
4638
4639 class DeferredInlineBinaryOperation: public DeferredCode { 4588 class DeferredInlineBinaryOperation: public DeferredCode {
4640 public: 4589 public:
4641 DeferredInlineBinaryOperation(Token::Value op, 4590 DeferredInlineBinaryOperation(Token::Value op,
4642 Register dst, 4591 Register dst,
4643 Register left, 4592 Register left,
4644 Register right, 4593 Register right,
4645 OverwriteMode mode) 4594 OverwriteMode mode)
4646 : op_(op), dst_(dst), left_(left), right_(right), mode_(mode) { 4595 : op_(op), dst_(dst), left_(left), right_(right), mode_(mode) {
4647 set_comment("[ DeferredInlineBinaryOperation"); 4596 set_comment("[ DeferredInlineBinaryOperation");
4648 } 4597 }
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7261 int CompareStub::MinorKey() { 7210 int CompareStub::MinorKey() {
7262 // Encode the two parameters in a unique 16 bit value. 7211 // Encode the two parameters in a unique 16 bit value.
7263 ASSERT(static_cast<unsigned>(cc_) < (1 << 15)); 7212 ASSERT(static_cast<unsigned>(cc_) < (1 << 15));
7264 return (static_cast<unsigned>(cc_) << 1) | (strict_ ? 1 : 0); 7213 return (static_cast<unsigned>(cc_) << 1) | (strict_ ? 1 : 0);
7265 } 7214 }
7266 7215
7267 7216
7268 #undef __ 7217 #undef __
7269 7218
7270 } } // namespace v8::internal 7219 } } // namespace v8::internal
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