diff options
Diffstat (limited to 'deps/v8/src/mips/codegen-mips.cc')
| -rw-r--r-- | deps/v8/src/mips/codegen-mips.cc | 257 |
1 files changed, 0 insertions, 257 deletions
diff --git a/deps/v8/src/mips/codegen-mips.cc b/deps/v8/src/mips/codegen-mips.cc index e9fe2324ea..ff146dd4ed 100644 --- a/deps/v8/src/mips/codegen-mips.cc +++ b/deps/v8/src/mips/codegen-mips.cc @@ -30,13 +30,10 @@ #if defined(V8_TARGET_ARCH_MIPS) #include "codegen.h" -#include "macro-assembler.h" namespace v8 { namespace internal { -#define __ ACCESS_MASM(masm) - // ------------------------------------------------------------------------- // Platform-specific RuntimeCallHelper functions. @@ -53,260 +50,6 @@ void StubRuntimeCallHelper::AfterCall(MacroAssembler* masm) const { masm->set_has_frame(false); } -// ------------------------------------------------------------------------- -// Code generators - -void ElementsTransitionGenerator::GenerateSmiOnlyToObject( - MacroAssembler* masm) { - // ----------- S t a t e ------------- - // -- a0 : value - // -- a1 : key - // -- a2 : receiver - // -- ra : return address - // -- a3 : target map, scratch for subsequent call - // -- t0 : scratch (elements) - // ----------------------------------- - // Set transitioned map. - __ sw(a3, FieldMemOperand(a2, HeapObject::kMapOffset)); - __ RecordWriteField(a2, - HeapObject::kMapOffset, - a3, - t5, - kRAHasNotBeenSaved, - kDontSaveFPRegs, - EMIT_REMEMBERED_SET, - OMIT_SMI_CHECK); -} - - -void ElementsTransitionGenerator::GenerateSmiOnlyToDouble( - MacroAssembler* masm, Label* fail) { - // ----------- S t a t e ------------- - // -- a0 : value - // -- a1 : key - // -- a2 : receiver - // -- ra : return address - // -- a3 : target map, scratch for subsequent call - // -- t0 : scratch (elements) - // ----------------------------------- - Label loop, entry, convert_hole, gc_required; - bool fpu_supported = CpuFeatures::IsSupported(FPU); - __ push(ra); - - Register scratch = t6; - - __ lw(t0, FieldMemOperand(a2, JSObject::kElementsOffset)); - __ lw(t1, FieldMemOperand(t0, FixedArray::kLengthOffset)); - // t0: source FixedArray - // t1: number of elements (smi-tagged) - - // Allocate new FixedDoubleArray. - __ sll(scratch, t1, 2); - __ Addu(scratch, scratch, FixedDoubleArray::kHeaderSize); - __ AllocateInNewSpace(scratch, t2, t3, t5, &gc_required, NO_ALLOCATION_FLAGS); - // t2: destination FixedDoubleArray, not tagged as heap object - __ LoadRoot(t5, Heap::kFixedDoubleArrayMapRootIndex); - __ sw(t5, MemOperand(t2, HeapObject::kMapOffset)); - // Set destination FixedDoubleArray's length. - __ sw(t1, MemOperand(t2, FixedDoubleArray::kLengthOffset)); - // Update receiver's map. - - __ sw(a3, FieldMemOperand(a2, HeapObject::kMapOffset)); - __ RecordWriteField(a2, - HeapObject::kMapOffset, - a3, - t5, - kRAHasBeenSaved, - kDontSaveFPRegs, - EMIT_REMEMBERED_SET, - OMIT_SMI_CHECK); - // Replace receiver's backing store with newly created FixedDoubleArray. - __ Addu(a3, t2, Operand(kHeapObjectTag)); - __ sw(a3, FieldMemOperand(a2, JSObject::kElementsOffset)); - __ RecordWriteField(a2, - JSObject::kElementsOffset, - a3, - t5, - kRAHasBeenSaved, - kDontSaveFPRegs, - EMIT_REMEMBERED_SET, - OMIT_SMI_CHECK); - - - // Prepare for conversion loop. - __ Addu(a3, t0, Operand(FixedArray::kHeaderSize - kHeapObjectTag)); - __ Addu(t3, t2, Operand(FixedDoubleArray::kHeaderSize)); - __ sll(t2, t1, 2); - __ Addu(t2, t2, t3); - __ li(t0, Operand(kHoleNanLower32)); - __ li(t1, Operand(kHoleNanUpper32)); - // t0: kHoleNanLower32 - // t1: kHoleNanUpper32 - // t2: end of destination FixedDoubleArray, not tagged - // t3: begin of FixedDoubleArray element fields, not tagged - - if (!fpu_supported) __ Push(a1, a0); - - __ Branch(&entry); - - // Call into runtime if GC is required. - __ bind(&gc_required); - __ pop(ra); - __ Branch(fail); - - // Convert and copy elements. - __ bind(&loop); - __ lw(t5, MemOperand(a3)); - __ Addu(a3, a3, kIntSize); - // t5: current element - __ JumpIfNotSmi(t5, &convert_hole); - - // Normal smi, convert to double and store. - __ SmiUntag(t5); - if (fpu_supported) { - CpuFeatures::Scope scope(FPU); - __ mtc1(t5, f0); - __ cvt_d_w(f0, f0); - __ sdc1(f0, MemOperand(t3)); - __ Addu(t3, t3, kDoubleSize); - } else { - FloatingPointHelper::ConvertIntToDouble(masm, - t5, - FloatingPointHelper::kCoreRegisters, - f0, - a0, - a1, - t7, - f0); - __ sw(a0, MemOperand(t3)); // mantissa - __ sw(a1, MemOperand(t3, kIntSize)); // exponent - __ Addu(t3, t3, kDoubleSize); - } - __ Branch(&entry); - - // Hole found, store the-hole NaN. - __ bind(&convert_hole); - __ sw(t0, MemOperand(t3)); // mantissa - __ sw(t1, MemOperand(t3, kIntSize)); // exponent - __ Addu(t3, t3, kDoubleSize); - - __ bind(&entry); - __ Branch(&loop, lt, t3, Operand(t2)); - - if (!fpu_supported) __ Pop(a1, a0); - __ pop(ra); -} - - -void ElementsTransitionGenerator::GenerateDoubleToObject( - MacroAssembler* masm, Label* fail) { - // ----------- S t a t e ------------- - // -- a0 : value - // -- a1 : key - // -- a2 : receiver - // -- ra : return address - // -- a3 : target map, scratch for subsequent call - // -- t0 : scratch (elements) - // ----------------------------------- - Label entry, loop, convert_hole, gc_required; - __ MultiPush(a0.bit() | a1.bit() | a2.bit() | a3.bit() | ra.bit()); - - __ lw(t0, FieldMemOperand(a2, JSObject::kElementsOffset)); - __ lw(t1, FieldMemOperand(t0, FixedArray::kLengthOffset)); - // t0: source FixedArray - // t1: number of elements (smi-tagged) - - // Allocate new FixedArray. - __ sll(a0, t1, 1); - __ Addu(a0, a0, FixedDoubleArray::kHeaderSize); - __ AllocateInNewSpace(a0, t2, t3, t5, &gc_required, NO_ALLOCATION_FLAGS); - // t2: destination FixedArray, not tagged as heap object - __ LoadRoot(t5, Heap::kFixedArrayMapRootIndex); - __ sw(t5, MemOperand(t2, HeapObject::kMapOffset)); - // Set destination FixedDoubleArray's length. - __ sw(t1, MemOperand(t2, FixedDoubleArray::kLengthOffset)); - - // Prepare for conversion loop. - __ Addu(t0, t0, Operand(FixedDoubleArray::kHeaderSize - kHeapObjectTag + 4)); - __ Addu(a3, t2, Operand(FixedArray::kHeaderSize)); - __ Addu(t2, t2, Operand(kHeapObjectTag)); - __ sll(t1, t1, 1); - __ Addu(t1, a3, t1); - __ LoadRoot(t3, Heap::kTheHoleValueRootIndex); - __ LoadRoot(t5, Heap::kHeapNumberMapRootIndex); - // Using offsetted addresses. - // a3: begin of destination FixedArray element fields, not tagged - // t0: begin of source FixedDoubleArray element fields, not tagged, +4 - // t1: end of destination FixedArray, not tagged - // t2: destination FixedArray - // t3: the-hole pointer - // t5: heap number map - __ Branch(&entry); - - // Call into runtime if GC is required. - __ bind(&gc_required); - __ MultiPop(a0.bit() | a1.bit() | a2.bit() | a3.bit() | ra.bit()); - - __ Branch(fail); - - __ bind(&loop); - __ lw(a1, MemOperand(t0)); - __ Addu(t0, t0, kDoubleSize); - // a1: current element's upper 32 bit - // t0: address of next element's upper 32 bit - __ Branch(&convert_hole, eq, a1, Operand(kHoleNanUpper32)); - - // Non-hole double, copy value into a heap number. - __ AllocateHeapNumber(a2, a0, t6, t5, &gc_required); - // a2: new heap number - __ lw(a0, MemOperand(t0, -12)); - __ sw(a0, FieldMemOperand(a2, HeapNumber::kMantissaOffset)); - __ sw(a1, FieldMemOperand(a2, HeapNumber::kExponentOffset)); - __ mov(a0, a3); - __ sw(a2, MemOperand(a3)); - __ Addu(a3, a3, kIntSize); - __ RecordWrite(t2, - a0, - a2, - kRAHasBeenSaved, - kDontSaveFPRegs, - EMIT_REMEMBERED_SET, - OMIT_SMI_CHECK); - __ Branch(&entry); - - // Replace the-hole NaN with the-hole pointer. - __ bind(&convert_hole); - __ sw(t3, MemOperand(a3)); - __ Addu(a3, a3, kIntSize); - - __ bind(&entry); - __ Branch(&loop, lt, a3, Operand(t1)); - - __ MultiPop(a2.bit() | a3.bit() | a0.bit() | a1.bit()); - // Update receiver's map. - __ sw(a3, FieldMemOperand(a2, HeapObject::kMapOffset)); - __ RecordWriteField(a2, - HeapObject::kMapOffset, - a3, - t5, - kRAHasBeenSaved, - kDontSaveFPRegs, - EMIT_REMEMBERED_SET, - OMIT_SMI_CHECK); - // Replace receiver's backing store with newly created and filled FixedArray. - __ sw(t2, FieldMemOperand(a2, JSObject::kElementsOffset)); - __ RecordWriteField(a2, - JSObject::kElementsOffset, - t2, - t5, - kRAHasBeenSaved, - kDontSaveFPRegs, - EMIT_REMEMBERED_SET, - OMIT_SMI_CHECK); - __ pop(ra); -} - -#undef __ } } // namespace v8::internal |