diff options
Diffstat (limited to 'deps/v8/src/mips/macro-assembler-mips.h')
| -rw-r--r-- | deps/v8/src/mips/macro-assembler-mips.h | 146 |
1 files changed, 46 insertions, 100 deletions
diff --git a/deps/v8/src/mips/macro-assembler-mips.h b/deps/v8/src/mips/macro-assembler-mips.h index 824a3bf14d..66ac930ad2 100644 --- a/deps/v8/src/mips/macro-assembler-mips.h +++ b/deps/v8/src/mips/macro-assembler-mips.h @@ -208,6 +208,12 @@ class MacroAssembler: public Assembler { Heap::RootListIndex index, BranchDelaySlot bdslot = PROTECT); +// Number of instructions needed for calculation of switch table entry address +#ifdef _MIPS_ARCH_MIPS32R6 + static const int kSwitchTablePrologueSize = 5; +#else + static const int kSwitchTablePrologueSize = 10; +#endif // GetLabelFunction must be lambda '[](size_t index) -> Label*' or a // functor/function with 'Label *func(size_t index)' declaration. template <typename Func> @@ -305,17 +311,6 @@ class MacroAssembler: public Assembler { void Movt(Register rd, Register rs, uint16_t cc = 0); void Movf(Register rd, Register rs, uint16_t cc = 0); - // Min, Max macros. - // On pre-r6 these functions may modify at and t8 registers. - void MinNaNCheck_d(FPURegister dst, FPURegister src1, FPURegister src2, - Label* nan = nullptr); - void MaxNaNCheck_d(FPURegister dst, FPURegister src1, FPURegister src2, - Label* nan = nullptr); - void MinNaNCheck_s(FPURegister dst, FPURegister src1, FPURegister src2, - Label* nan = nullptr); - void MaxNaNCheck_s(FPURegister dst, FPURegister src1, FPURegister src2, - Label* nan = nullptr); - void Clz(Register rd, Register rs); // Jump unconditionally to given label. @@ -560,32 +555,6 @@ class MacroAssembler: public Assembler { void FastAllocate(Register object_size, Register result, Register result_new, Register scratch, AllocationFlags flags); - void AllocateTwoByteString(Register result, - Register length, - Register scratch1, - Register scratch2, - Register scratch3, - Label* gc_required); - void AllocateOneByteString(Register result, Register length, - Register scratch1, Register scratch2, - Register scratch3, Label* gc_required); - void AllocateTwoByteConsString(Register result, - Register length, - Register scratch1, - Register scratch2, - Label* gc_required); - void AllocateOneByteConsString(Register result, Register length, - Register scratch1, Register scratch2, - Label* gc_required); - void AllocateTwoByteSlicedString(Register result, - Register length, - Register scratch1, - Register scratch2, - Label* gc_required); - void AllocateOneByteSlicedString(Register result, Register length, - Register scratch1, Register scratch2, - Label* gc_required); - // Allocates a heap number or jumps to the gc_required label if the young // space is full and a scavenge is needed. All registers are clobbered also // when control continues at the gc_required label. @@ -892,6 +861,15 @@ class MacroAssembler: public Assembler { // general-purpose register. void Mfhc1(Register rt, FPURegister fs); + void Madd_s(FPURegister fd, FPURegister fr, FPURegister fs, FPURegister ft, + FPURegister scratch); + void Madd_d(FPURegister fd, FPURegister fr, FPURegister fs, FPURegister ft, + FPURegister scratch); + void Msub_s(FPURegister fd, FPURegister fr, FPURegister fs, FPURegister ft, + FPURegister scratch); + void Msub_d(FPURegister fd, FPURegister fr, FPURegister fs, FPURegister ft, + FPURegister scratch); + // Wrapper functions for the different cmp/branch types. inline void BranchF32(Label* target, Label* nan, Condition cc, FPURegister cmp1, FPURegister cmp2, @@ -1037,17 +1015,6 @@ class MacroAssembler: public Assembler { LoadNativeContextSlot(Context::GLOBAL_PROXY_INDEX, dst); } - // Conditionally load the cached Array transitioned map of type - // transitioned_kind from the native context if the map in register - // map_in_out is the cached Array map in the native context of - // expected_kind. - void LoadTransitionedArrayMapConditional( - ElementsKind expected_kind, - ElementsKind transitioned_kind, - Register map_in_out, - Register scratch, - Label* no_map_match); - void LoadNativeContextSlot(int index, Register dst); // Load the initial map from the global function. The registers @@ -1080,9 +1047,10 @@ class MacroAssembler: public Assembler { const ParameterCount& actual, InvokeFlag flag, const CallWrapper& call_wrapper); - void FloodFunctionIfStepping(Register fun, Register new_target, - const ParameterCount& expected, - const ParameterCount& actual); + // On function call, call into the debugger if necessary. + void CheckDebugHook(Register fun, Register new_target, + const ParameterCount& expected, + const ParameterCount& actual); // Invoke the JavaScript function in the given register. Changes the // current context to the context in the function before invoking. @@ -1158,30 +1126,6 @@ class MacroAssembler: public Assembler { FieldMemOperand(object_map, Map::kInstanceTypeOffset)); } - // Check if a map for a JSObject indicates that the object can have both smi - // and HeapObject elements. Jump to the specified label if it does not. - void CheckFastObjectElements(Register map, - Register scratch, - Label* fail); - - // Check if a map for a JSObject indicates that the object has fast smi only - // elements. Jump to the specified label if it does not. - void CheckFastSmiElements(Register map, - Register scratch, - Label* fail); - - // Check to see if maybe_number can be stored as a double in - // FastDoubleElements. If it can, store it at the index specified by key in - // the FastDoubleElements array elements. Otherwise jump to fail. - void StoreNumberToDoubleElements(Register value_reg, - Register key_reg, - Register elements_reg, - Register scratch1, - Register scratch2, - Register scratch3, - Label* fail, - int elements_offset = 0); - // Compare an object's map with the specified map and its transitioned // elements maps if mode is ALLOW_ELEMENT_TRANSITION_MAPS. Jumps to // "branch_to" if the result of the comparison is "cond". If multiple map @@ -1331,6 +1275,31 @@ class MacroAssembler: public Assembler { Label* overflow_label, Label* no_overflow_label, Register scratch = at); + // Perform a floating-point min or max operation with the + // (IEEE-754-compatible) semantics of MIPS32's Release 6 MIN.fmt/MAX.fmt. + // Some cases, typically NaNs or +/-0.0, are expected to be rare and are + // handled in out-of-line code. The specific behaviour depends on supported + // instructions. + // + // These functions assume (and assert) that !src1.is(src2). It is permitted + // for the result to alias either input register. + void Float32Max(FPURegister dst, FPURegister src1, FPURegister src2, + Label* out_of_line); + void Float32Min(FPURegister dst, FPURegister src1, FPURegister src2, + Label* out_of_line); + void Float64Max(DoubleRegister dst, DoubleRegister src1, DoubleRegister src2, + Label* out_of_line); + void Float64Min(DoubleRegister dst, DoubleRegister src1, DoubleRegister src2, + Label* out_of_line); + + // Generate out-of-line cases for the macros above. + void Float32MaxOutOfLine(FPURegister dst, FPURegister src1, FPURegister src2); + void Float32MinOutOfLine(FPURegister dst, FPURegister src1, FPURegister src2); + void Float64MaxOutOfLine(DoubleRegister dst, DoubleRegister src1, + DoubleRegister src2); + void Float64MinOutOfLine(DoubleRegister dst, DoubleRegister src1, + DoubleRegister src2); + // ------------------------------------------------------------------------- // Runtime calls. @@ -1557,10 +1526,6 @@ const Operand& rt = Operand(zero_reg), BranchDelaySlot bd = PROTECT // Souce and destination can be the same register. void UntagAndJumpIfSmi(Register dst, Register src, Label* smi_case); - // Untag the source value into destination and jump if source is not a smi. - // Souce and destination can be the same register. - void UntagAndJumpIfNotSmi(Register dst, Register src, Label* non_smi_case); - // Jump the register contains a smi. void JumpIfSmi(Register value, Label* smi_label, @@ -1630,11 +1595,6 @@ const Operand& rt = Operand(zero_reg), BranchDelaySlot bd = PROTECT Register first_object_instance_type, Register second_object_instance_type, Register scratch1, Register scratch2, Label* failure); - // Check if instance type is sequential one-byte string and jump to label if - // it is not. - void JumpIfInstanceTypeIsNotSequentialOneByte(Register type, Register scratch, - Label* failure); - void JumpIfNotUniqueNameInstanceType(Register reg, Label* not_unique_name); void EmitSeqStringSetCharCheck(Register string, @@ -1731,20 +1691,6 @@ const Operand& rt = Operand(zero_reg), BranchDelaySlot bd = PROTECT Register scratch_reg, Label* no_memento_found); - void JumpIfJSArrayHasAllocationMemento(Register receiver_reg, - Register scratch_reg, - Label* memento_found) { - Label no_memento_found; - TestJSArrayForAllocationMemento(receiver_reg, scratch_reg, - &no_memento_found); - Branch(memento_found); - bind(&no_memento_found); - } - - // Jumps to found label if a prototype map has dictionary elements. - void JumpIfDictionaryInPrototypeChain(Register object, Register scratch0, - Register scratch1, Label* found); - bool IsDoubleZeroRegSet() { return has_double_zero_reg_set_; } private: @@ -1871,13 +1817,13 @@ template <typename Func> void MacroAssembler::GenerateSwitchTable(Register index, size_t case_count, Func GetLabelFunction) { if (kArchVariant >= kMips32r6) { - BlockTrampolinePoolFor(case_count + 5); + BlockTrampolinePoolFor(case_count + kSwitchTablePrologueSize); addiupc(at, 5); Lsa(at, at, index, kPointerSizeLog2); lw(at, MemOperand(at)); } else { Label here; - BlockTrampolinePoolFor(case_count + 10); + BlockTrampolinePoolFor(case_count + kSwitchTablePrologueSize); push(ra); bal(&here); sll(at, index, kPointerSizeLog2); // Branch delay slot. |