Revision f230a1cf deps/v8/src/ia32/code-stubs-ia32.cc
| deps/v8/src/ia32/code-stubs-ia32.cc | ||
|---|---|---|
| 64 | 64 |
} |
| 65 | 65 |
|
| 66 | 66 |
|
| 67 |
void NumberToStringStub::InitializeInterfaceDescriptor( |
|
| 68 |
Isolate* isolate, |
|
| 69 |
CodeStubInterfaceDescriptor* descriptor) {
|
|
| 70 |
static Register registers[] = { eax };
|
|
| 71 |
descriptor->register_param_count_ = 1; |
|
| 72 |
descriptor->register_params_ = registers; |
|
| 73 |
descriptor->deoptimization_handler_ = |
|
| 74 |
Runtime::FunctionForId(Runtime::kNumberToString)->entry; |
|
| 75 |
} |
|
| 76 |
|
|
| 77 |
|
|
| 67 | 78 |
void FastCloneShallowArrayStub::InitializeInterfaceDescriptor( |
| 68 | 79 |
Isolate* isolate, |
| 69 | 80 |
CodeStubInterfaceDescriptor* descriptor) {
|
| ... | ... | |
| 82 | 93 |
descriptor->register_param_count_ = 4; |
| 83 | 94 |
descriptor->register_params_ = registers; |
| 84 | 95 |
descriptor->deoptimization_handler_ = |
| 85 |
Runtime::FunctionForId(Runtime::kCreateObjectLiteralShallow)->entry;
|
|
| 96 |
Runtime::FunctionForId(Runtime::kCreateObjectLiteral)->entry; |
|
| 86 | 97 |
} |
| 87 | 98 |
|
| 88 | 99 |
|
| ... | ... | |
| 162 | 173 |
|
| 163 | 174 |
if (constant_stack_parameter_count != 0) {
|
| 164 | 175 |
// stack param count needs (constructor pointer, and single argument) |
| 165 |
descriptor->stack_parameter_count_ = &eax;
|
|
| 176 |
descriptor->stack_parameter_count_ = eax; |
|
| 166 | 177 |
} |
| 167 | 178 |
descriptor->hint_stack_parameter_count_ = constant_stack_parameter_count; |
| 168 | 179 |
descriptor->register_params_ = registers; |
| ... | ... | |
| 184 | 195 |
|
| 185 | 196 |
if (constant_stack_parameter_count != 0) {
|
| 186 | 197 |
// stack param count needs (constructor pointer, and single argument) |
| 187 |
descriptor->stack_parameter_count_ = &eax;
|
|
| 198 |
descriptor->stack_parameter_count_ = eax; |
|
| 188 | 199 |
} |
| 189 | 200 |
descriptor->hint_stack_parameter_count_ = constant_stack_parameter_count; |
| 190 | 201 |
descriptor->register_params_ = registers; |
| ... | ... | |
| 283 | 294 |
} |
| 284 | 295 |
|
| 285 | 296 |
|
| 297 |
void BinaryOpStub::InitializeInterfaceDescriptor( |
|
| 298 |
Isolate* isolate, |
|
| 299 |
CodeStubInterfaceDescriptor* descriptor) {
|
|
| 300 |
static Register registers[] = { edx, eax };
|
|
| 301 |
descriptor->register_param_count_ = 2; |
|
| 302 |
descriptor->register_params_ = registers; |
|
| 303 |
descriptor->deoptimization_handler_ = FUNCTION_ADDR(BinaryOpIC_Miss); |
|
| 304 |
descriptor->SetMissHandler( |
|
| 305 |
ExternalReference(IC_Utility(IC::kBinaryOpIC_Miss), isolate)); |
|
| 306 |
} |
|
| 307 |
|
|
| 308 |
|
|
| 286 | 309 |
#define __ ACCESS_MASM(masm) |
| 287 | 310 |
|
| 288 | 311 |
|
| ... | ... | |
| 432 | 455 |
__ sub(esp, Immediate(kDoubleSize * XMMRegister::kNumRegisters)); |
| 433 | 456 |
for (int i = 0; i < XMMRegister::kNumRegisters; i++) {
|
| 434 | 457 |
XMMRegister reg = XMMRegister::from_code(i); |
| 435 |
__ movdbl(Operand(esp, i * kDoubleSize), reg);
|
|
| 458 |
__ movsd(Operand(esp, i * kDoubleSize), reg);
|
|
| 436 | 459 |
} |
| 437 | 460 |
} |
| 438 | 461 |
const int argument_count = 1; |
| ... | ... | |
| 448 | 471 |
CpuFeatureScope scope(masm, SSE2); |
| 449 | 472 |
for (int i = 0; i < XMMRegister::kNumRegisters; i++) {
|
| 450 | 473 |
XMMRegister reg = XMMRegister::from_code(i); |
| 451 |
__ movdbl(reg, Operand(esp, i * kDoubleSize));
|
|
| 474 |
__ movsd(reg, Operand(esp, i * kDoubleSize));
|
|
| 452 | 475 |
} |
| 453 | 476 |
__ add(esp, Immediate(kDoubleSize * XMMRegister::kNumRegisters)); |
| 454 | 477 |
} |
| ... | ... | |
| 470 | 493 |
// on FPU stack. |
| 471 | 494 |
static void LoadFloatOperand(MacroAssembler* masm, Register number); |
| 472 | 495 |
|
| 473 |
// Code pattern for loading floating point values. Input values must |
|
| 474 |
// be either smi or heap number objects (fp values). Requirements: |
|
| 475 |
// operand_1 on TOS+1 or in edx, operand_2 on TOS+2 or in eax. |
|
| 476 |
// Returns operands as floating point numbers on FPU stack. |
|
| 477 |
static void LoadFloatOperands(MacroAssembler* masm, |
|
| 478 |
Register scratch, |
|
| 479 |
ArgLocation arg_location = ARGS_ON_STACK); |
|
| 480 |
|
|
| 481 |
// Similar to LoadFloatOperand but assumes that both operands are smis. |
|
| 482 |
// Expects operands in edx, eax. |
|
| 483 |
static void LoadFloatSmis(MacroAssembler* masm, Register scratch); |
|
| 484 |
|
|
| 485 | 496 |
// Test if operands are smi or number objects (fp). Requirements: |
| 486 | 497 |
// operand_1 in eax, operand_2 in edx; falls through on float |
| 487 | 498 |
// operands, jumps to the non_float label otherwise. |
| ... | ... | |
| 489 | 500 |
Label* non_float, |
| 490 | 501 |
Register scratch); |
| 491 | 502 |
|
| 492 |
// Takes the operands in edx and eax and loads them as integers in eax |
|
| 493 |
// and ecx. |
|
| 494 |
static void LoadUnknownsAsIntegers(MacroAssembler* masm, |
|
| 495 |
bool use_sse3, |
|
| 496 |
BinaryOpIC::TypeInfo left_type, |
|
| 497 |
BinaryOpIC::TypeInfo right_type, |
|
| 498 |
Label* operand_conversion_failure); |
|
| 499 |
|
|
| 500 | 503 |
// Test if operands are numbers (smi or HeapNumber objects), and load |
| 501 | 504 |
// them into xmm0 and xmm1 if they are. Jump to label not_numbers if |
| 502 | 505 |
// either operand is not a number. Operands are in edx and eax. |
| 503 | 506 |
// Leaves operands unchanged. |
| 504 | 507 |
static void LoadSSE2Operands(MacroAssembler* masm, Label* not_numbers); |
| 505 |
|
|
| 506 |
// Similar to LoadSSE2Operands but assumes that both operands are smis. |
|
| 507 |
// Expects operands in edx, eax. |
|
| 508 |
static void LoadSSE2Smis(MacroAssembler* masm, Register scratch); |
|
| 509 |
|
|
| 510 |
// Checks that |operand| has an int32 value. If |int32_result| is different |
|
| 511 |
// from |scratch|, it will contain that int32 value. |
|
| 512 |
static void CheckSSE2OperandIsInt32(MacroAssembler* masm, |
|
| 513 |
Label* non_int32, |
|
| 514 |
XMMRegister operand, |
|
| 515 |
Register int32_result, |
|
| 516 |
Register scratch, |
|
| 517 |
XMMRegister xmm_scratch); |
|
| 518 | 508 |
}; |
| 519 | 509 |
|
| 520 | 510 |
|
| ... | ... | |
| 658 | 648 |
} |
| 659 | 649 |
|
| 660 | 650 |
|
| 661 |
void BinaryOpStub::Initialize() {
|
|
| 662 |
platform_specific_bit_ = CpuFeatures::IsSupported(SSE3); |
|
| 663 |
} |
|
| 664 |
|
|
| 665 |
|
|
| 666 |
void BinaryOpStub::GenerateTypeTransition(MacroAssembler* masm) {
|
|
| 667 |
__ pop(ecx); // Save return address. |
|
| 668 |
__ push(edx); |
|
| 669 |
__ push(eax); |
|
| 670 |
// Left and right arguments are now on top. |
|
| 671 |
__ push(Immediate(Smi::FromInt(MinorKey()))); |
|
| 672 |
|
|
| 673 |
__ push(ecx); // Push return address. |
|
| 674 |
|
|
| 675 |
// Patch the caller to an appropriate specialized stub and return the |
|
| 676 |
// operation result to the caller of the stub. |
|
| 677 |
__ TailCallExternalReference( |
|
| 678 |
ExternalReference(IC_Utility(IC::kBinaryOp_Patch), |
|
| 679 |
masm->isolate()), |
|
| 680 |
3, |
|
| 681 |
1); |
|
| 682 |
} |
|
| 683 |
|
|
| 684 |
|
|
| 685 |
// Prepare for a type transition runtime call when the args are already on |
|
| 686 |
// the stack, under the return address. |
|
| 687 |
void BinaryOpStub::GenerateTypeTransitionWithSavedArgs(MacroAssembler* masm) {
|
|
| 688 |
__ pop(ecx); // Save return address. |
|
| 689 |
// Left and right arguments are already on top of the stack. |
|
| 690 |
__ push(Immediate(Smi::FromInt(MinorKey()))); |
|
| 691 |
|
|
| 692 |
__ push(ecx); // Push return address. |
|
| 693 |
|
|
| 694 |
// Patch the caller to an appropriate specialized stub and return the |
|
| 695 |
// operation result to the caller of the stub. |
|
| 696 |
__ TailCallExternalReference( |
|
| 697 |
ExternalReference(IC_Utility(IC::kBinaryOp_Patch), |
|
| 698 |
masm->isolate()), |
|
| 699 |
3, |
|
| 700 |
1); |
|
| 701 |
} |
|
| 702 |
|
|
| 703 |
|
|
| 704 |
static void BinaryOpStub_GenerateRegisterArgsPop(MacroAssembler* masm) {
|
|
| 705 |
__ pop(ecx); |
|
| 706 |
__ pop(eax); |
|
| 707 |
__ pop(edx); |
|
| 708 |
__ push(ecx); |
|
| 709 |
} |
|
| 710 |
|
|
| 711 |
|
|
| 712 |
static void BinaryOpStub_GenerateSmiCode( |
|
| 713 |
MacroAssembler* masm, |
|
| 714 |
Label* slow, |
|
| 715 |
BinaryOpStub::SmiCodeGenerateHeapNumberResults allow_heapnumber_results, |
|
| 716 |
Token::Value op) {
|
|
| 717 |
// 1. Move arguments into edx, eax except for DIV and MOD, which need the |
|
| 718 |
// dividend in eax and edx free for the division. Use eax, ebx for those. |
|
| 719 |
Comment load_comment(masm, "-- Load arguments"); |
|
| 720 |
Register left = edx; |
|
| 721 |
Register right = eax; |
|
| 722 |
if (op == Token::DIV || op == Token::MOD) {
|
|
| 723 |
left = eax; |
|
| 724 |
right = ebx; |
|
| 725 |
__ mov(ebx, eax); |
|
| 726 |
__ mov(eax, edx); |
|
| 727 |
} |
|
| 728 |
|
|
| 729 |
|
|
| 730 |
// 2. Prepare the smi check of both operands by oring them together. |
|
| 731 |
Comment smi_check_comment(masm, "-- Smi check arguments"); |
|
| 732 |
Label not_smis; |
|
| 733 |
Register combined = ecx; |
|
| 734 |
ASSERT(!left.is(combined) && !right.is(combined)); |
|
| 735 |
switch (op) {
|
|
| 736 |
case Token::BIT_OR: |
|
| 737 |
// Perform the operation into eax and smi check the result. Preserve |
|
| 738 |
// eax in case the result is not a smi. |
|
| 739 |
ASSERT(!left.is(ecx) && !right.is(ecx)); |
|
| 740 |
__ mov(ecx, right); |
|
| 741 |
__ or_(right, left); // Bitwise or is commutative. |
|
| 742 |
combined = right; |
|
| 743 |
break; |
|
| 744 |
|
|
| 745 |
case Token::BIT_XOR: |
|
| 746 |
case Token::BIT_AND: |
|
| 747 |
case Token::ADD: |
|
| 748 |
case Token::SUB: |
|
| 749 |
case Token::MUL: |
|
| 750 |
case Token::DIV: |
|
| 751 |
case Token::MOD: |
|
| 752 |
__ mov(combined, right); |
|
| 753 |
__ or_(combined, left); |
|
| 754 |
break; |
|
| 755 |
|
|
| 756 |
case Token::SHL: |
|
| 757 |
case Token::SAR: |
|
| 758 |
case Token::SHR: |
|
| 759 |
// Move the right operand into ecx for the shift operation, use eax |
|
| 760 |
// for the smi check register. |
|
| 761 |
ASSERT(!left.is(ecx) && !right.is(ecx)); |
|
| 762 |
__ mov(ecx, right); |
|
| 763 |
__ or_(right, left); |
|
| 764 |
combined = right; |
|
| 765 |
break; |
|
| 766 |
|
|
| 767 |
default: |
|
| 768 |
break; |
|
| 769 |
} |
|
| 770 |
|
|
| 771 |
// 3. Perform the smi check of the operands. |
|
| 772 |
STATIC_ASSERT(kSmiTag == 0); // Adjust zero check if not the case. |
|
| 773 |
__ JumpIfNotSmi(combined, ¬_smis); |
|
| 774 |
|
|
| 775 |
// 4. Operands are both smis, perform the operation leaving the result in |
|
| 776 |
// eax and check the result if necessary. |
|
| 777 |
Comment perform_smi(masm, "-- Perform smi operation"); |
|
| 778 |
Label use_fp_on_smis; |
|
| 779 |
switch (op) {
|
|
| 780 |
case Token::BIT_OR: |
|
| 781 |
// Nothing to do. |
|
| 782 |
break; |
|
| 783 |
|
|
| 784 |
case Token::BIT_XOR: |
|
| 785 |
ASSERT(right.is(eax)); |
|
| 786 |
__ xor_(right, left); // Bitwise xor is commutative. |
|
| 787 |
break; |
|
| 788 |
|
|
| 789 |
case Token::BIT_AND: |
|
| 790 |
ASSERT(right.is(eax)); |
|
| 791 |
__ and_(right, left); // Bitwise and is commutative. |
|
| 792 |
break; |
|
| 793 |
|
|
| 794 |
case Token::SHL: |
|
| 795 |
// Remove tags from operands (but keep sign). |
|
| 796 |
__ SmiUntag(left); |
|
| 797 |
__ SmiUntag(ecx); |
|
| 798 |
// Perform the operation. |
|
| 799 |
__ shl_cl(left); |
|
| 800 |
// Check that the *signed* result fits in a smi. |
|
| 801 |
__ cmp(left, 0xc0000000); |
|
| 802 |
__ j(sign, &use_fp_on_smis); |
|
| 803 |
// Tag the result and store it in register eax. |
|
| 804 |
__ SmiTag(left); |
|
| 805 |
__ mov(eax, left); |
|
| 806 |
break; |
|
| 807 |
|
|
| 808 |
case Token::SAR: |
|
| 809 |
// Remove tags from operands (but keep sign). |
|
| 810 |
__ SmiUntag(left); |
|
| 811 |
__ SmiUntag(ecx); |
|
| 812 |
// Perform the operation. |
|
| 813 |
__ sar_cl(left); |
|
| 814 |
// Tag the result and store it in register eax. |
|
| 815 |
__ SmiTag(left); |
|
| 816 |
__ mov(eax, left); |
|
| 817 |
break; |
|
| 818 |
|
|
| 819 |
case Token::SHR: |
|
| 820 |
// Remove tags from operands (but keep sign). |
|
| 821 |
__ SmiUntag(left); |
|
| 822 |
__ SmiUntag(ecx); |
|
| 823 |
// Perform the operation. |
|
| 824 |
__ shr_cl(left); |
|
| 825 |
// Check that the *unsigned* result fits in a smi. |
|
| 826 |
// Neither of the two high-order bits can be set: |
|
| 827 |
// - 0x80000000: high bit would be lost when smi tagging. |
|
| 828 |
// - 0x40000000: this number would convert to negative when |
|
| 829 |
// Smi tagging these two cases can only happen with shifts |
|
| 830 |
// by 0 or 1 when handed a valid smi. |
|
| 831 |
__ test(left, Immediate(0xc0000000)); |
|
| 832 |
__ j(not_zero, &use_fp_on_smis); |
|
| 833 |
// Tag the result and store it in register eax. |
|
| 834 |
__ SmiTag(left); |
|
| 835 |
__ mov(eax, left); |
|
| 836 |
break; |
|
| 837 |
|
|
| 838 |
case Token::ADD: |
|
| 839 |
ASSERT(right.is(eax)); |
|
| 840 |
__ add(right, left); // Addition is commutative. |
|
| 841 |
__ j(overflow, &use_fp_on_smis); |
|
| 842 |
break; |
|
| 843 |
|
|
| 844 |
case Token::SUB: |
|
| 845 |
__ sub(left, right); |
|
| 846 |
__ j(overflow, &use_fp_on_smis); |
|
| 847 |
__ mov(eax, left); |
|
| 848 |
break; |
|
| 849 |
|
|
| 850 |
case Token::MUL: |
|
| 851 |
// If the smi tag is 0 we can just leave the tag on one operand. |
|
| 852 |
STATIC_ASSERT(kSmiTag == 0); // Adjust code below if not the case. |
|
| 853 |
// We can't revert the multiplication if the result is not a smi |
|
| 854 |
// so save the right operand. |
|
| 855 |
__ mov(ebx, right); |
|
| 856 |
// Remove tag from one of the operands (but keep sign). |
|
| 857 |
__ SmiUntag(right); |
|
| 858 |
// Do multiplication. |
|
| 859 |
__ imul(right, left); // Multiplication is commutative. |
|
| 860 |
__ j(overflow, &use_fp_on_smis); |
|
| 861 |
// Check for negative zero result. Use combined = left | right. |
|
| 862 |
__ NegativeZeroTest(right, combined, &use_fp_on_smis); |
|
| 863 |
break; |
|
| 864 |
|
|
| 865 |
case Token::DIV: |
|
| 866 |
// We can't revert the division if the result is not a smi so |
|
| 867 |
// save the left operand. |
|
| 868 |
__ mov(edi, left); |
|
| 869 |
// Check for 0 divisor. |
|
| 870 |
__ test(right, right); |
|
| 871 |
__ j(zero, &use_fp_on_smis); |
|
| 872 |
// Sign extend left into edx:eax. |
|
| 873 |
ASSERT(left.is(eax)); |
|
| 874 |
__ cdq(); |
|
| 875 |
// Divide edx:eax by right. |
|
| 876 |
__ idiv(right); |
|
| 877 |
// Check for the corner case of dividing the most negative smi by |
|
| 878 |
// -1. We cannot use the overflow flag, since it is not set by idiv |
|
| 879 |
// instruction. |
|
| 880 |
STATIC_ASSERT(kSmiTag == 0 && kSmiTagSize == 1); |
|
| 881 |
__ cmp(eax, 0x40000000); |
|
| 882 |
__ j(equal, &use_fp_on_smis); |
|
| 883 |
// Check for negative zero result. Use combined = left | right. |
|
| 884 |
__ NegativeZeroTest(eax, combined, &use_fp_on_smis); |
|
| 885 |
// Check that the remainder is zero. |
|
| 886 |
__ test(edx, edx); |
|
| 887 |
__ j(not_zero, &use_fp_on_smis); |
|
| 888 |
// Tag the result and store it in register eax. |
|
| 889 |
__ SmiTag(eax); |
|
| 890 |
break; |
|
| 891 |
|
|
| 892 |
case Token::MOD: |
|
| 893 |
// Check for 0 divisor. |
|
| 894 |
__ test(right, right); |
|
| 895 |
__ j(zero, ¬_smis); |
|
| 896 |
|
|
| 897 |
// Sign extend left into edx:eax. |
|
| 898 |
ASSERT(left.is(eax)); |
|
| 899 |
__ cdq(); |
|
| 900 |
// Divide edx:eax by right. |
|
| 901 |
__ idiv(right); |
|
| 902 |
// Check for negative zero result. Use combined = left | right. |
|
| 903 |
__ NegativeZeroTest(edx, combined, slow); |
|
| 904 |
// Move remainder to register eax. |
|
| 905 |
__ mov(eax, edx); |
|
| 906 |
break; |
|
| 907 |
|
|
| 908 |
default: |
|
| 909 |
UNREACHABLE(); |
|
| 910 |
} |
|
| 911 |
|
|
| 912 |
// 5. Emit return of result in eax. Some operations have registers pushed. |
|
| 913 |
switch (op) {
|
|
| 914 |
case Token::ADD: |
|
| 915 |
case Token::SUB: |
|
| 916 |
case Token::MUL: |
|
| 917 |
case Token::DIV: |
|
| 918 |
__ ret(0); |
|
| 919 |
break; |
|
| 920 |
case Token::MOD: |
|
| 921 |
case Token::BIT_OR: |
|
| 922 |
case Token::BIT_AND: |
|
| 923 |
case Token::BIT_XOR: |
|
| 924 |
case Token::SAR: |
|
| 925 |
case Token::SHL: |
|
| 926 |
case Token::SHR: |
|
| 927 |
__ ret(2 * kPointerSize); |
|
| 928 |
break; |
|
| 929 |
default: |
|
| 930 |
UNREACHABLE(); |
|
| 931 |
} |
|
| 932 |
|
|
| 933 |
// 6. For some operations emit inline code to perform floating point |
|
| 934 |
// operations on known smis (e.g., if the result of the operation |
|
| 935 |
// overflowed the smi range). |
|
| 936 |
if (allow_heapnumber_results == BinaryOpStub::NO_HEAPNUMBER_RESULTS) {
|
|
| 937 |
__ bind(&use_fp_on_smis); |
|
| 938 |
switch (op) {
|
|
| 939 |
// Undo the effects of some operations, and some register moves. |
|
| 940 |
case Token::SHL: |
|
| 941 |
// The arguments are saved on the stack, and only used from there. |
|
| 942 |
break; |
|
| 943 |
case Token::ADD: |
|
| 944 |
// Revert right = right + left. |
|
| 945 |
__ sub(right, left); |
|
| 946 |
break; |
|
| 947 |
case Token::SUB: |
|
| 948 |
// Revert left = left - right. |
|
| 949 |
__ add(left, right); |
|
| 950 |
break; |
|
| 951 |
case Token::MUL: |
|
| 952 |
// Right was clobbered but a copy is in ebx. |
|
| 953 |
__ mov(right, ebx); |
|
| 954 |
break; |
|
| 955 |
case Token::DIV: |
|
| 956 |
// Left was clobbered but a copy is in edi. Right is in ebx for |
|
| 957 |
// division. They should be in eax, ebx for jump to not_smi. |
|
| 958 |
__ mov(eax, edi); |
|
| 959 |
break; |
|
| 960 |
default: |
|
| 961 |
// No other operators jump to use_fp_on_smis. |
|
| 962 |
break; |
|
| 963 |
} |
|
| 964 |
__ jmp(¬_smis); |
|
| 965 |
} else {
|
|
| 966 |
ASSERT(allow_heapnumber_results == BinaryOpStub::ALLOW_HEAPNUMBER_RESULTS); |
|
| 967 |
switch (op) {
|
|
| 968 |
case Token::SHL: |
|
| 969 |
case Token::SHR: {
|
|
| 970 |
Comment perform_float(masm, "-- Perform float operation on smis"); |
|
| 971 |
__ bind(&use_fp_on_smis); |
|
| 972 |
// Result we want is in left == edx, so we can put the allocated heap |
|
| 973 |
// number in eax. |
|
| 974 |
__ AllocateHeapNumber(eax, ecx, ebx, slow); |
|
| 975 |
// Store the result in the HeapNumber and return. |
|
| 976 |
// It's OK to overwrite the arguments on the stack because we |
|
| 977 |
// are about to return. |
|
| 978 |
if (op == Token::SHR) {
|
|
| 979 |
__ mov(Operand(esp, 1 * kPointerSize), left); |
|
| 980 |
__ mov(Operand(esp, 2 * kPointerSize), Immediate(0)); |
|
| 981 |
__ fild_d(Operand(esp, 1 * kPointerSize)); |
|
| 982 |
__ fstp_d(FieldOperand(eax, HeapNumber::kValueOffset)); |
|
| 983 |
} else {
|
|
| 984 |
ASSERT_EQ(Token::SHL, op); |
|
| 985 |
if (CpuFeatures::IsSupported(SSE2)) {
|
|
| 986 |
CpuFeatureScope use_sse2(masm, SSE2); |
|
| 987 |
__ cvtsi2sd(xmm0, left); |
|
| 988 |
__ movdbl(FieldOperand(eax, HeapNumber::kValueOffset), xmm0); |
|
| 989 |
} else {
|
|
| 990 |
__ mov(Operand(esp, 1 * kPointerSize), left); |
|
| 991 |
__ fild_s(Operand(esp, 1 * kPointerSize)); |
|
| 992 |
__ fstp_d(FieldOperand(eax, HeapNumber::kValueOffset)); |
|
| 993 |
} |
|
| 994 |
} |
|
| 995 |
__ ret(2 * kPointerSize); |
|
| 996 |
break; |
|
| 997 |
} |
|
| 998 |
|
|
| 999 |
case Token::ADD: |
|
| 1000 |
case Token::SUB: |
|
| 1001 |
case Token::MUL: |
|
| 1002 |
case Token::DIV: {
|
|
| 1003 |
Comment perform_float(masm, "-- Perform float operation on smis"); |
|
| 1004 |
__ bind(&use_fp_on_smis); |
|
| 1005 |
// Restore arguments to edx, eax. |
|
| 1006 |
switch (op) {
|
|
| 1007 |
case Token::ADD: |
|
| 1008 |
// Revert right = right + left. |
|
| 1009 |
__ sub(right, left); |
|
| 1010 |
break; |
|
| 1011 |
case Token::SUB: |
|
| 1012 |
// Revert left = left - right. |
|
| 1013 |
__ add(left, right); |
|
| 1014 |
break; |
|
| 1015 |
case Token::MUL: |
|
| 1016 |
// Right was clobbered but a copy is in ebx. |
|
| 1017 |
__ mov(right, ebx); |
|
| 1018 |
break; |
|
| 1019 |
case Token::DIV: |
|
| 1020 |
// Left was clobbered but a copy is in edi. Right is in ebx for |
|
| 1021 |
// division. |
|
| 1022 |
__ mov(edx, edi); |
|
| 1023 |
__ mov(eax, right); |
|
| 1024 |
break; |
|
| 1025 |
default: UNREACHABLE(); |
|
| 1026 |
break; |
|
| 1027 |
} |
|
| 1028 |
__ AllocateHeapNumber(ecx, ebx, no_reg, slow); |
|
| 1029 |
if (CpuFeatures::IsSupported(SSE2)) {
|
|
| 1030 |
CpuFeatureScope use_sse2(masm, SSE2); |
|
| 1031 |
FloatingPointHelper::LoadSSE2Smis(masm, ebx); |
|
| 1032 |
switch (op) {
|
|
| 1033 |
case Token::ADD: __ addsd(xmm0, xmm1); break; |
|
| 1034 |
case Token::SUB: __ subsd(xmm0, xmm1); break; |
|
| 1035 |
case Token::MUL: __ mulsd(xmm0, xmm1); break; |
|
| 1036 |
case Token::DIV: __ divsd(xmm0, xmm1); break; |
|
| 1037 |
default: UNREACHABLE(); |
|
| 1038 |
} |
|
| 1039 |
__ movdbl(FieldOperand(ecx, HeapNumber::kValueOffset), xmm0); |
|
| 1040 |
} else { // SSE2 not available, use FPU.
|
|
| 1041 |
FloatingPointHelper::LoadFloatSmis(masm, ebx); |
|
| 1042 |
switch (op) {
|
|
| 1043 |
case Token::ADD: __ faddp(1); break; |
|
| 1044 |
case Token::SUB: __ fsubp(1); break; |
|
| 1045 |
case Token::MUL: __ fmulp(1); break; |
|
| 1046 |
case Token::DIV: __ fdivp(1); break; |
|
| 1047 |
default: UNREACHABLE(); |
|
| 1048 |
} |
|
| 1049 |
__ fstp_d(FieldOperand(ecx, HeapNumber::kValueOffset)); |
|
| 1050 |
} |
|
| 1051 |
__ mov(eax, ecx); |
|
| 1052 |
__ ret(0); |
|
| 1053 |
break; |
|
| 1054 |
} |
|
| 1055 |
|
|
| 1056 |
default: |
|
| 1057 |
break; |
|
| 1058 |
} |
|
| 1059 |
} |
|
| 1060 |
|
|
| 1061 |
// 7. Non-smi operands, fall out to the non-smi code with the operands in |
|
| 1062 |
// edx and eax. |
|
| 1063 |
Comment done_comment(masm, "-- Enter non-smi code"); |
|
| 1064 |
__ bind(¬_smis); |
|
| 1065 |
switch (op) {
|
|
| 1066 |
case Token::BIT_OR: |
|
| 1067 |
case Token::SHL: |
|
| 1068 |
case Token::SAR: |
|
| 1069 |
case Token::SHR: |
|
| 1070 |
// Right operand is saved in ecx and eax was destroyed by the smi |
|
| 1071 |
// check. |
|
| 1072 |
__ mov(eax, ecx); |
|
| 1073 |
break; |
|
| 1074 |
|
|
| 1075 |
case Token::DIV: |
|
| 1076 |
case Token::MOD: |
|
| 1077 |
// Operands are in eax, ebx at this point. |
|
| 1078 |
__ mov(edx, eax); |
|
| 1079 |
__ mov(eax, ebx); |
|
| 1080 |
break; |
|
| 1081 |
|
|
| 1082 |
default: |
|
| 1083 |
break; |
|
| 1084 |
} |
|
| 1085 |
} |
|
| 1086 |
|
|
| 1087 |
|
|
| 1088 |
void BinaryOpStub::GenerateSmiStub(MacroAssembler* masm) {
|
|
| 1089 |
Label right_arg_changed, call_runtime; |
|
| 1090 |
|
|
| 1091 |
switch (op_) {
|
|
| 1092 |
case Token::ADD: |
|
| 1093 |
case Token::SUB: |
|
| 1094 |
case Token::MUL: |
|
| 1095 |
case Token::DIV: |
|
| 1096 |
break; |
|
| 1097 |
case Token::MOD: |
|
| 1098 |
case Token::BIT_OR: |
|
| 1099 |
case Token::BIT_AND: |
|
| 1100 |
case Token::BIT_XOR: |
|
| 1101 |
case Token::SAR: |
|
| 1102 |
case Token::SHL: |
|
| 1103 |
case Token::SHR: |
|
| 1104 |
GenerateRegisterArgsPush(masm); |
|
| 1105 |
break; |
|
| 1106 |
default: |
|
| 1107 |
UNREACHABLE(); |
|
| 1108 |
} |
|
| 1109 |
|
|
| 1110 |
if (op_ == Token::MOD && encoded_right_arg_.has_value) {
|
|
| 1111 |
// It is guaranteed that the value will fit into a Smi, because if it |
|
| 1112 |
// didn't, we wouldn't be here, see BinaryOp_Patch. |
|
| 1113 |
__ cmp(eax, Immediate(Smi::FromInt(fixed_right_arg_value()))); |
|
| 1114 |
__ j(not_equal, &right_arg_changed); |
|
| 1115 |
} |
|
| 1116 |
|
|
| 1117 |
if (result_type_ == BinaryOpIC::UNINITIALIZED || |
|
| 1118 |
result_type_ == BinaryOpIC::SMI) {
|
|
| 1119 |
BinaryOpStub_GenerateSmiCode( |
|
| 1120 |
masm, &call_runtime, NO_HEAPNUMBER_RESULTS, op_); |
|
| 1121 |
} else {
|
|
| 1122 |
BinaryOpStub_GenerateSmiCode( |
|
| 1123 |
masm, &call_runtime, ALLOW_HEAPNUMBER_RESULTS, op_); |
|
| 1124 |
} |
|
| 1125 |
|
|
| 1126 |
// Code falls through if the result is not returned as either a smi or heap |
|
| 1127 |
// number. |
|
| 1128 |
__ bind(&right_arg_changed); |
|
| 1129 |
switch (op_) {
|
|
| 1130 |
case Token::ADD: |
|
| 1131 |
case Token::SUB: |
|
| 1132 |
case Token::MUL: |
|
| 1133 |
case Token::DIV: |
|
| 1134 |
GenerateTypeTransition(masm); |
|
| 1135 |
break; |
|
| 1136 |
case Token::MOD: |
|
| 1137 |
case Token::BIT_OR: |
|
| 1138 |
case Token::BIT_AND: |
|
| 1139 |
case Token::BIT_XOR: |
|
| 1140 |
case Token::SAR: |
|
| 1141 |
case Token::SHL: |
|
| 1142 |
case Token::SHR: |
|
| 1143 |
GenerateTypeTransitionWithSavedArgs(masm); |
|
| 1144 |
break; |
|
| 1145 |
default: |
|
| 1146 |
UNREACHABLE(); |
|
| 1147 |
} |
|
| 1148 |
|
|
| 1149 |
__ bind(&call_runtime); |
|
| 1150 |
switch (op_) {
|
|
| 1151 |
case Token::ADD: |
|
| 1152 |
case Token::SUB: |
|
| 1153 |
case Token::MUL: |
|
| 1154 |
case Token::DIV: |
|
| 1155 |
break; |
|
| 1156 |
case Token::MOD: |
|
| 1157 |
case Token::BIT_OR: |
|
| 1158 |
case Token::BIT_AND: |
|
| 1159 |
case Token::BIT_XOR: |
|
| 1160 |
case Token::SAR: |
|
| 1161 |
case Token::SHL: |
|
| 1162 |
case Token::SHR: |
|
| 1163 |
BinaryOpStub_GenerateRegisterArgsPop(masm); |
|
| 1164 |
break; |
|
| 1165 |
default: |
|
| 1166 |
UNREACHABLE(); |
|
| 1167 |
} |
|
| 1168 |
|
|
| 1169 |
{
|
|
| 1170 |
FrameScope scope(masm, StackFrame::INTERNAL); |
|
| 1171 |
__ push(edx); |
|
| 1172 |
__ push(eax); |
|
| 1173 |
GenerateCallRuntime(masm); |
|
| 1174 |
} |
|
| 1175 |
__ ret(0); |
|
| 1176 |
} |
|
| 1177 |
|
|
| 1178 |
|
|
| 1179 |
void BinaryOpStub::GenerateBothStringStub(MacroAssembler* masm) {
|
|
| 1180 |
Label call_runtime; |
|
| 1181 |
ASSERT(left_type_ == BinaryOpIC::STRING && right_type_ == BinaryOpIC::STRING); |
|
| 1182 |
ASSERT(op_ == Token::ADD); |
|
| 1183 |
// If both arguments are strings, call the string add stub. |
|
| 1184 |
// Otherwise, do a transition. |
|
| 1185 |
|
|
| 1186 |
// Registers containing left and right operands respectively. |
|
| 1187 |
Register left = edx; |
|
| 1188 |
Register right = eax; |
|
| 1189 |
|
|
| 1190 |
// Test if left operand is a string. |
|
| 1191 |
__ JumpIfSmi(left, &call_runtime, Label::kNear); |
|
| 1192 |
__ CmpObjectType(left, FIRST_NONSTRING_TYPE, ecx); |
|
| 1193 |
__ j(above_equal, &call_runtime, Label::kNear); |
|
| 1194 |
|
|
| 1195 |
// Test if right operand is a string. |
|
| 1196 |
__ JumpIfSmi(right, &call_runtime, Label::kNear); |
|
| 1197 |
__ CmpObjectType(right, FIRST_NONSTRING_TYPE, ecx); |
|
| 1198 |
__ j(above_equal, &call_runtime, Label::kNear); |
|
| 1199 |
|
|
| 1200 |
StringAddStub string_add_stub( |
|
| 1201 |
(StringAddFlags)(STRING_ADD_CHECK_NONE | STRING_ADD_ERECT_FRAME)); |
|
| 1202 |
GenerateRegisterArgsPush(masm); |
|
| 1203 |
__ TailCallStub(&string_add_stub); |
|
| 1204 |
|
|
| 1205 |
__ bind(&call_runtime); |
|
| 1206 |
GenerateTypeTransition(masm); |
|
| 1207 |
} |
|
| 1208 |
|
|
| 1209 |
|
|
| 1210 |
static void BinaryOpStub_GenerateHeapResultAllocation(MacroAssembler* masm, |
|
| 1211 |
Label* alloc_failure, |
|
| 1212 |
OverwriteMode mode); |
|
| 1213 |
|
|
| 1214 |
|
|
| 1215 |
// Input: |
|
| 1216 |
// edx: left operand (tagged) |
|
| 1217 |
// eax: right operand (tagged) |
|
| 1218 |
// Output: |
|
| 1219 |
// eax: result (tagged) |
|
| 1220 |
void BinaryOpStub::GenerateInt32Stub(MacroAssembler* masm) {
|
|
| 1221 |
Label call_runtime; |
|
| 1222 |
ASSERT(Max(left_type_, right_type_) == BinaryOpIC::INT32); |
|
| 1223 |
|
|
| 1224 |
// Floating point case. |
|
| 1225 |
switch (op_) {
|
|
| 1226 |
case Token::ADD: |
|
| 1227 |
case Token::SUB: |
|
| 1228 |
case Token::MUL: |
|
| 1229 |
case Token::DIV: |
|
| 1230 |
case Token::MOD: {
|
|
| 1231 |
Label not_floats, not_int32, right_arg_changed; |
|
| 1232 |
if (CpuFeatures::IsSupported(SSE2)) {
|
|
| 1233 |
CpuFeatureScope use_sse2(masm, SSE2); |
|
| 1234 |
// It could be that only SMIs have been seen at either the left |
|
| 1235 |
// or the right operand. For precise type feedback, patch the IC |
|
| 1236 |
// again if this changes. |
|
| 1237 |
// In theory, we would need the same check in the non-SSE2 case, |
|
| 1238 |
// but since we don't support Crankshaft on such hardware we can |
|
| 1239 |
// afford not to care about precise type feedback. |
|
| 1240 |
if (left_type_ == BinaryOpIC::SMI) {
|
|
| 1241 |
__ JumpIfNotSmi(edx, ¬_int32); |
|
| 1242 |
} |
|
| 1243 |
if (right_type_ == BinaryOpIC::SMI) {
|
|
| 1244 |
__ JumpIfNotSmi(eax, ¬_int32); |
|
| 1245 |
} |
|
| 1246 |
FloatingPointHelper::LoadSSE2Operands(masm, ¬_floats); |
|
| 1247 |
FloatingPointHelper::CheckSSE2OperandIsInt32( |
|
| 1248 |
masm, ¬_int32, xmm0, ebx, ecx, xmm2); |
|
| 1249 |
FloatingPointHelper::CheckSSE2OperandIsInt32( |
|
| 1250 |
masm, ¬_int32, xmm1, edi, ecx, xmm2); |
|
| 1251 |
if (op_ == Token::MOD) {
|
|
| 1252 |
if (encoded_right_arg_.has_value) {
|
|
| 1253 |
__ cmp(edi, Immediate(fixed_right_arg_value())); |
|
| 1254 |
__ j(not_equal, &right_arg_changed); |
|
| 1255 |
} |
|
| 1256 |
GenerateRegisterArgsPush(masm); |
|
| 1257 |
__ InvokeBuiltin(Builtins::MOD, JUMP_FUNCTION); |
|
| 1258 |
} else {
|
|
| 1259 |
switch (op_) {
|
|
| 1260 |
case Token::ADD: __ addsd(xmm0, xmm1); break; |
|
| 1261 |
case Token::SUB: __ subsd(xmm0, xmm1); break; |
|
| 1262 |
case Token::MUL: __ mulsd(xmm0, xmm1); break; |
|
| 1263 |
case Token::DIV: __ divsd(xmm0, xmm1); break; |
|
| 1264 |
default: UNREACHABLE(); |
|
| 1265 |
} |
|
| 1266 |
// Check result type if it is currently Int32. |
|
| 1267 |
if (result_type_ <= BinaryOpIC::INT32) {
|
|
| 1268 |
FloatingPointHelper::CheckSSE2OperandIsInt32( |
|
| 1269 |
masm, ¬_int32, xmm0, ecx, ecx, xmm2); |
|
| 1270 |
} |
|
| 1271 |
BinaryOpStub_GenerateHeapResultAllocation(masm, &call_runtime, mode_); |
|
| 1272 |
__ movdbl(FieldOperand(eax, HeapNumber::kValueOffset), xmm0); |
|
| 1273 |
__ ret(0); |
|
| 1274 |
} |
|
| 1275 |
} else { // SSE2 not available, use FPU.
|
|
| 1276 |
FloatingPointHelper::CheckFloatOperands(masm, ¬_floats, ebx); |
|
| 1277 |
FloatingPointHelper::LoadFloatOperands( |
|
| 1278 |
masm, |
|
| 1279 |
ecx, |
|
| 1280 |
FloatingPointHelper::ARGS_IN_REGISTERS); |
|
| 1281 |
if (op_ == Token::MOD) {
|
|
| 1282 |
// The operands are now on the FPU stack, but we don't need them. |
|
| 1283 |
__ fstp(0); |
|
| 1284 |
__ fstp(0); |
|
| 1285 |
GenerateRegisterArgsPush(masm); |
|
| 1286 |
__ InvokeBuiltin(Builtins::MOD, JUMP_FUNCTION); |
|
| 1287 |
} else {
|
|
| 1288 |
switch (op_) {
|
|
| 1289 |
case Token::ADD: __ faddp(1); break; |
|
| 1290 |
case Token::SUB: __ fsubp(1); break; |
|
| 1291 |
case Token::MUL: __ fmulp(1); break; |
|
| 1292 |
case Token::DIV: __ fdivp(1); break; |
|
| 1293 |
default: UNREACHABLE(); |
|
| 1294 |
} |
|
| 1295 |
Label after_alloc_failure; |
|
| 1296 |
BinaryOpStub_GenerateHeapResultAllocation( |
|
| 1297 |
masm, &after_alloc_failure, mode_); |
|
| 1298 |
__ fstp_d(FieldOperand(eax, HeapNumber::kValueOffset)); |
|
| 1299 |
__ ret(0); |
|
| 1300 |
__ bind(&after_alloc_failure); |
|
| 1301 |
__ fstp(0); // Pop FPU stack before calling runtime. |
|
| 1302 |
__ jmp(&call_runtime); |
|
| 1303 |
} |
|
| 1304 |
} |
|
| 1305 |
|
|
| 1306 |
__ bind(¬_floats); |
|
| 1307 |
__ bind(¬_int32); |
|
| 1308 |
__ bind(&right_arg_changed); |
|
| 1309 |
GenerateTypeTransition(masm); |
|
| 1310 |
break; |
|
| 1311 |
} |
|
| 1312 |
|
|
| 1313 |
case Token::BIT_OR: |
|
| 1314 |
case Token::BIT_AND: |
|
| 1315 |
case Token::BIT_XOR: |
|
| 1316 |
case Token::SAR: |
|
| 1317 |
case Token::SHL: |
|
| 1318 |
case Token::SHR: {
|
|
| 1319 |
GenerateRegisterArgsPush(masm); |
|
| 1320 |
Label not_floats; |
|
| 1321 |
Label not_int32; |
|
| 1322 |
Label non_smi_result; |
|
| 1323 |
bool use_sse3 = platform_specific_bit_; |
|
| 1324 |
FloatingPointHelper::LoadUnknownsAsIntegers( |
|
| 1325 |
masm, use_sse3, left_type_, right_type_, ¬_floats); |
|
| 1326 |
switch (op_) {
|
|
| 1327 |
case Token::BIT_OR: __ or_(eax, ecx); break; |
|
| 1328 |
case Token::BIT_AND: __ and_(eax, ecx); break; |
|
| 1329 |
case Token::BIT_XOR: __ xor_(eax, ecx); break; |
|
| 1330 |
case Token::SAR: __ sar_cl(eax); break; |
|
| 1331 |
case Token::SHL: __ shl_cl(eax); break; |
|
| 1332 |
case Token::SHR: __ shr_cl(eax); break; |
|
| 1333 |
default: UNREACHABLE(); |
|
| 1334 |
} |
|
| 1335 |
if (op_ == Token::SHR) {
|
|
| 1336 |
// Check if result is non-negative and fits in a smi. |
|
| 1337 |
__ test(eax, Immediate(0xc0000000)); |
|
| 1338 |
__ j(not_zero, &call_runtime); |
|
| 1339 |
} else {
|
|
| 1340 |
// Check if result fits in a smi. |
|
| 1341 |
__ cmp(eax, 0xc0000000); |
|
| 1342 |
__ j(negative, &non_smi_result, Label::kNear); |
|
| 1343 |
} |
|
| 1344 |
// Tag smi result and return. |
|
| 1345 |
__ SmiTag(eax); |
|
| 1346 |
__ ret(2 * kPointerSize); // Drop two pushed arguments from the stack. |
|
| 1347 |
|
|
| 1348 |
// All ops except SHR return a signed int32 that we load in |
|
| 1349 |
// a HeapNumber. |
|
| 1350 |
if (op_ != Token::SHR) {
|
|
| 1351 |
__ bind(&non_smi_result); |
|
| 1352 |
// Allocate a heap number if needed. |
|
| 1353 |
__ mov(ebx, eax); // ebx: result |
|
| 1354 |
Label skip_allocation; |
|
| 1355 |
switch (mode_) {
|
|
| 1356 |
case OVERWRITE_LEFT: |
|
| 1357 |
case OVERWRITE_RIGHT: |
|
| 1358 |
// If the operand was an object, we skip the |
|
| 1359 |
// allocation of a heap number. |
|
| 1360 |
__ mov(eax, Operand(esp, mode_ == OVERWRITE_RIGHT ? |
|
| 1361 |
1 * kPointerSize : 2 * kPointerSize)); |
|
| 1362 |
__ JumpIfNotSmi(eax, &skip_allocation, Label::kNear); |
|
| 1363 |
// Fall through! |
|
| 1364 |
case NO_OVERWRITE: |
|
| 1365 |
__ AllocateHeapNumber(eax, ecx, edx, &call_runtime); |
|
| 1366 |
__ bind(&skip_allocation); |
|
| 1367 |
break; |
|
| 1368 |
default: UNREACHABLE(); |
|
| 1369 |
} |
|
| 1370 |
// Store the result in the HeapNumber and return. |
|
| 1371 |
if (CpuFeatures::IsSupported(SSE2)) {
|
|
| 1372 |
CpuFeatureScope use_sse2(masm, SSE2); |
|
| 1373 |
__ cvtsi2sd(xmm0, ebx); |
|
| 1374 |
__ movdbl(FieldOperand(eax, HeapNumber::kValueOffset), xmm0); |
|
| 1375 |
} else {
|
|
| 1376 |
__ mov(Operand(esp, 1 * kPointerSize), ebx); |
|
| 1377 |
__ fild_s(Operand(esp, 1 * kPointerSize)); |
|
| 1378 |
__ fstp_d(FieldOperand(eax, HeapNumber::kValueOffset)); |
|
| 1379 |
} |
|
| 1380 |
__ ret(2 * kPointerSize); // Drop two pushed arguments from the stack. |
|
| 1381 |
} |
|
| 1382 |
|
|
| 1383 |
__ bind(¬_floats); |
|
| 1384 |
__ bind(¬_int32); |
|
| 1385 |
GenerateTypeTransitionWithSavedArgs(masm); |
|
| 1386 |
break; |
|
| 1387 |
} |
|
| 1388 |
default: UNREACHABLE(); break; |
|
| 1389 |
} |
|
| 1390 |
|
|
| 1391 |
// If an allocation fails, or SHR hits a hard case, use the runtime system to |
|
| 1392 |
// get the correct result. |
|
| 1393 |
__ bind(&call_runtime); |
|
| 1394 |
|
|
| 1395 |
switch (op_) {
|
|
| 1396 |
case Token::ADD: |
|
| 1397 |
case Token::SUB: |
|
| 1398 |
case Token::MUL: |
|
| 1399 |
case Token::DIV: |
|
| 1400 |
break; |
|
| 1401 |
case Token::MOD: |
|
| 1402 |
return; // Handled above. |
|
| 1403 |
case Token::BIT_OR: |
|
| 1404 |
case Token::BIT_AND: |
|
| 1405 |
case Token::BIT_XOR: |
|
| 1406 |
case Token::SAR: |
|
| 1407 |
case Token::SHL: |
|
| 1408 |
case Token::SHR: |
|
| 1409 |
BinaryOpStub_GenerateRegisterArgsPop(masm); |
|
| 1410 |
break; |
|
| 1411 |
default: |
|
| 1412 |
UNREACHABLE(); |
|
| 1413 |
} |
|
| 1414 |
|
|
| 1415 |
{
|
|
| 1416 |
FrameScope scope(masm, StackFrame::INTERNAL); |
|
| 1417 |
__ push(edx); |
|
| 1418 |
__ push(eax); |
|
| 1419 |
GenerateCallRuntime(masm); |
|
| 1420 |
} |
|
| 1421 |
__ ret(0); |
|
| 1422 |
} |
|
| 1423 |
|
|
| 1424 |
|
|
| 1425 |
void BinaryOpStub::GenerateOddballStub(MacroAssembler* masm) {
|
|
| 1426 |
if (op_ == Token::ADD) {
|
|
| 1427 |
// Handle string addition here, because it is the only operation |
|
| 1428 |
// that does not do a ToNumber conversion on the operands. |
|
| 1429 |
GenerateAddStrings(masm); |
|
| 1430 |
} |
|
| 1431 |
|
|
| 1432 |
Factory* factory = masm->isolate()->factory(); |
|
| 1433 |
|
|
| 1434 |
// Convert odd ball arguments to numbers. |
|
| 1435 |
Label check, done; |
|
| 1436 |
__ cmp(edx, factory->undefined_value()); |
|
| 1437 |
__ j(not_equal, &check, Label::kNear); |
|
| 1438 |
if (Token::IsBitOp(op_)) {
|
|
| 1439 |
__ xor_(edx, edx); |
|
| 1440 |
} else {
|
|
| 1441 |
__ mov(edx, Immediate(factory->nan_value())); |
|
| 1442 |
} |
|
| 1443 |
__ jmp(&done, Label::kNear); |
|
| 1444 |
__ bind(&check); |
|
| 1445 |
__ cmp(eax, factory->undefined_value()); |
|
| 1446 |
__ j(not_equal, &done, Label::kNear); |
|
| 1447 |
if (Token::IsBitOp(op_)) {
|
|
| 1448 |
__ xor_(eax, eax); |
|
| 1449 |
} else {
|
|
| 1450 |
__ mov(eax, Immediate(factory->nan_value())); |
|
| 1451 |
} |
|
| 1452 |
__ bind(&done); |
|
| 1453 |
|
|
| 1454 |
GenerateNumberStub(masm); |
|
| 1455 |
} |
|
| 1456 |
|
|
| 1457 |
|
|
| 1458 |
void BinaryOpStub::GenerateNumberStub(MacroAssembler* masm) {
|
|
| 1459 |
Label call_runtime; |
|
| 1460 |
|
|
| 1461 |
// Floating point case. |
|
| 1462 |
switch (op_) {
|
|
| 1463 |
case Token::ADD: |
|
| 1464 |
case Token::SUB: |
|
| 1465 |
case Token::MUL: |
|
| 1466 |
case Token::DIV: {
|
|
| 1467 |
Label not_floats; |
|
| 1468 |
if (CpuFeatures::IsSupported(SSE2)) {
|
|
| 1469 |
CpuFeatureScope use_sse2(masm, SSE2); |
|
| 1470 |
|
|
| 1471 |
// It could be that only SMIs have been seen at either the left |
|
| 1472 |
// or the right operand. For precise type feedback, patch the IC |
|
| 1473 |
// again if this changes. |
|
| 1474 |
// In theory, we would need the same check in the non-SSE2 case, |
|
| 1475 |
// but since we don't support Crankshaft on such hardware we can |
|
| 1476 |
// afford not to care about precise type feedback. |
|
| 1477 |
if (left_type_ == BinaryOpIC::SMI) {
|
|
| 1478 |
__ JumpIfNotSmi(edx, ¬_floats); |
|
| 1479 |
} |
|
| 1480 |
if (right_type_ == BinaryOpIC::SMI) {
|
|
| 1481 |
__ JumpIfNotSmi(eax, ¬_floats); |
|
| 1482 |
} |
|
| 1483 |
FloatingPointHelper::LoadSSE2Operands(masm, ¬_floats); |
|
| 1484 |
if (left_type_ == BinaryOpIC::INT32) {
|
|
| 1485 |
FloatingPointHelper::CheckSSE2OperandIsInt32( |
|
| 1486 |
masm, ¬_floats, xmm0, ecx, ecx, xmm2); |
|
| 1487 |
} |
|
| 1488 |
if (right_type_ == BinaryOpIC::INT32) {
|
|
| 1489 |
FloatingPointHelper::CheckSSE2OperandIsInt32( |
|
| 1490 |
masm, ¬_floats, xmm1, ecx, ecx, xmm2); |
|
| 1491 |
} |
|
| 1492 |
|
|
| 1493 |
switch (op_) {
|
|
| 1494 |
case Token::ADD: __ addsd(xmm0, xmm1); break; |
|
| 1495 |
case Token::SUB: __ subsd(xmm0, xmm1); break; |
|
| 1496 |
case Token::MUL: __ mulsd(xmm0, xmm1); break; |
|
| 1497 |
case Token::DIV: __ divsd(xmm0, xmm1); break; |
|
| 1498 |
default: UNREACHABLE(); |
|
| 1499 |
} |
|
| 1500 |
BinaryOpStub_GenerateHeapResultAllocation(masm, &call_runtime, mode_); |
|
| 1501 |
__ movdbl(FieldOperand(eax, HeapNumber::kValueOffset), xmm0); |
|
| 1502 |
__ ret(0); |
|
| 1503 |
} else { // SSE2 not available, use FPU.
|
|
| 1504 |
FloatingPointHelper::CheckFloatOperands(masm, ¬_floats, ebx); |
|
| 1505 |
FloatingPointHelper::LoadFloatOperands( |
|
| 1506 |
masm, |
|
| 1507 |
ecx, |
|
| 1508 |
FloatingPointHelper::ARGS_IN_REGISTERS); |
|
| 1509 |
switch (op_) {
|
|
| 1510 |
case Token::ADD: __ faddp(1); break; |
|
| 1511 |
case Token::SUB: __ fsubp(1); break; |
|
| 1512 |
case Token::MUL: __ fmulp(1); break; |
|
| 1513 |
case Token::DIV: __ fdivp(1); break; |
|
| 1514 |
default: UNREACHABLE(); |
|
| 1515 |
} |
|
| 1516 |
Label after_alloc_failure; |
|
| 1517 |
BinaryOpStub_GenerateHeapResultAllocation( |
|
| 1518 |
masm, &after_alloc_failure, mode_); |
|
| 1519 |
__ fstp_d(FieldOperand(eax, HeapNumber::kValueOffset)); |
|
| 1520 |
__ ret(0); |
|
| 1521 |
__ bind(&after_alloc_failure); |
|
| 1522 |
__ fstp(0); // Pop FPU stack before calling runtime. |
|
| 1523 |
__ jmp(&call_runtime); |
|
| 1524 |
} |
|
| 1525 |
|
|
| 1526 |
__ bind(¬_floats); |
|
| 1527 |
GenerateTypeTransition(masm); |
|
| 1528 |
break; |
|
| 1529 |
} |
|
| 1530 |
|
|
| 1531 |
case Token::MOD: {
|
|
| 1532 |
// For MOD we go directly to runtime in the non-smi case. |
|
| 1533 |
break; |
|
| 1534 |
} |
|
| 1535 |
case Token::BIT_OR: |
|
| 1536 |
case Token::BIT_AND: |
|
| 1537 |
case Token::BIT_XOR: |
|
| 1538 |
case Token::SAR: |
|
| 1539 |
case Token::SHL: |
|
| 1540 |
case Token::SHR: {
|
|
| 1541 |
GenerateRegisterArgsPush(masm); |
|
| 1542 |
Label not_floats; |
|
| 1543 |
Label non_smi_result; |
|
| 1544 |
// We do not check the input arguments here, as any value is |
|
| 1545 |
// unconditionally truncated to an int32 anyway. To get the |
|
| 1546 |
// right optimized code, int32 type feedback is just right. |
|
| 1547 |
bool use_sse3 = platform_specific_bit_; |
|
| 1548 |
FloatingPointHelper::LoadUnknownsAsIntegers( |
|
| 1549 |
masm, use_sse3, left_type_, right_type_, ¬_floats); |
|
| 1550 |
switch (op_) {
|
|
| 1551 |
case Token::BIT_OR: __ or_(eax, ecx); break; |
|
| 1552 |
case Token::BIT_AND: __ and_(eax, ecx); break; |
|
| 1553 |
case Token::BIT_XOR: __ xor_(eax, ecx); break; |
|
| 1554 |
case Token::SAR: __ sar_cl(eax); break; |
|
| 1555 |
case Token::SHL: __ shl_cl(eax); break; |
|
| 1556 |
case Token::SHR: __ shr_cl(eax); break; |
|
| 1557 |
default: UNREACHABLE(); |
|
| 1558 |
} |
|
| 1559 |
if (op_ == Token::SHR) {
|
|
| 1560 |
// Check if result is non-negative and fits in a smi. |
|
| 1561 |
__ test(eax, Immediate(0xc0000000)); |
|
| 1562 |
__ j(not_zero, &call_runtime); |
|
| 1563 |
} else {
|
|
| 1564 |
// Check if result fits in a smi. |
|
| 1565 |
__ cmp(eax, 0xc0000000); |
|
| 1566 |
__ j(negative, &non_smi_result, Label::kNear); |
|
| 1567 |
} |
|
| 1568 |
// Tag smi result and return. |
|
| 1569 |
__ SmiTag(eax); |
|
| 1570 |
__ ret(2 * kPointerSize); // Drop two pushed arguments from the stack. |
|
| 1571 |
|
|
| 1572 |
// All ops except SHR return a signed int32 that we load in |
|
| 1573 |
// a HeapNumber. |
|
| 1574 |
if (op_ != Token::SHR) {
|
|
| 1575 |
__ bind(&non_smi_result); |
|
| 1576 |
// Allocate a heap number if needed. |
|
| 1577 |
__ mov(ebx, eax); // ebx: result |
|
| 1578 |
Label skip_allocation; |
|
| 1579 |
switch (mode_) {
|
|
| 1580 |
case OVERWRITE_LEFT: |
|
| 1581 |
case OVERWRITE_RIGHT: |
|
| 1582 |
// If the operand was an object, we skip the |
|
| 1583 |
// allocation of a heap number. |
|
| 1584 |
__ mov(eax, Operand(esp, mode_ == OVERWRITE_RIGHT ? |
|
| 1585 |
1 * kPointerSize : 2 * kPointerSize)); |
|
| 1586 |
__ JumpIfNotSmi(eax, &skip_allocation, Label::kNear); |
|
| 1587 |
// Fall through! |
|
| 1588 |
case NO_OVERWRITE: |
|
| 1589 |
__ AllocateHeapNumber(eax, ecx, edx, &call_runtime); |
|
| 1590 |
__ bind(&skip_allocation); |
|
| 1591 |
break; |
|
| 1592 |
default: UNREACHABLE(); |
|
| 1593 |
} |
|
| 1594 |
// Store the result in the HeapNumber and return. |
|
| 1595 |
if (CpuFeatures::IsSupported(SSE2)) {
|
|
| 1596 |
CpuFeatureScope use_sse2(masm, SSE2); |
|
| 1597 |
__ cvtsi2sd(xmm0, ebx); |
|
| 1598 |
__ movdbl(FieldOperand(eax, HeapNumber::kValueOffset), xmm0); |
|
| 1599 |
} else {
|
|
| 1600 |
__ mov(Operand(esp, 1 * kPointerSize), ebx); |
|
| 1601 |
__ fild_s(Operand(esp, 1 * kPointerSize)); |
|
| 1602 |
__ fstp_d(FieldOperand(eax, HeapNumber::kValueOffset)); |
|
| 1603 |
} |
|
| 1604 |
__ ret(2 * kPointerSize); // Drop two pushed arguments from the stack. |
|
| 1605 |
} |
|
| 1606 |
|
|
| 1607 |
__ bind(¬_floats); |
|
| 1608 |
GenerateTypeTransitionWithSavedArgs(masm); |
|
| 1609 |
break; |
|
| 1610 |
} |
|
| 1611 |
default: UNREACHABLE(); break; |
|
| 1612 |
} |
|
| 1613 |
|
|
| 1614 |
// If an allocation fails, or SHR or MOD hit a hard case, |
|
| 1615 |
// use the runtime system to get the correct result. |
|
| 1616 |
__ bind(&call_runtime); |
|
| 1617 |
|
|
| 1618 |
switch (op_) {
|
|
| 1619 |
case Token::ADD: |
|
| 1620 |
case Token::SUB: |
|
| 1621 |
case Token::MUL: |
|
| 1622 |
case Token::DIV: |
|
| 1623 |
case Token::MOD: |
|
| 1624 |
break; |
|
| 1625 |
case Token::BIT_OR: |
|
| 1626 |
case Token::BIT_AND: |
|
| 1627 |
case Token::BIT_XOR: |
|
| 1628 |
case Token::SAR: |
|
| 1629 |
case Token::SHL: |
|
| 1630 |
case Token::SHR: |
|
| 1631 |
BinaryOpStub_GenerateRegisterArgsPop(masm); |
|
| 1632 |
break; |
|
| 1633 |
default: |
|
| 1634 |
UNREACHABLE(); |
|
| 1635 |
} |
|
| 1636 |
|
|
| 1637 |
{
|
|
| 1638 |
FrameScope scope(masm, StackFrame::INTERNAL); |
|
| 1639 |
__ push(edx); |
|
| 1640 |
__ push(eax); |
|
| 1641 |
GenerateCallRuntime(masm); |
|
| 1642 |
} |
|
| 1643 |
__ ret(0); |
|
| 1644 |
} |
|
| 1645 |
|
|
| 1646 |
|
|
| 1647 |
void BinaryOpStub::GenerateGeneric(MacroAssembler* masm) {
|
|
| 1648 |
Label call_runtime; |
|
| 1649 |
|
|
| 1650 |
Counters* counters = masm->isolate()->counters(); |
|
| 1651 |
__ IncrementCounter(counters->generic_binary_stub_calls(), 1); |
|
| 1652 |
|
|
| 1653 |
switch (op_) {
|
|
| 1654 |
case Token::ADD: |
|
| 1655 |
case Token::SUB: |
|
| 1656 |
case Token::MUL: |
|
| 1657 |
case Token::DIV: |
|
| 1658 |
break; |
|
| 1659 |
case Token::MOD: |
|
| 1660 |
case Token::BIT_OR: |
|
| 1661 |
case Token::BIT_AND: |
|
| 1662 |
case Token::BIT_XOR: |
|
| 1663 |
case Token::SAR: |
|
| 1664 |
case Token::SHL: |
|
| 1665 |
case Token::SHR: |
|
| 1666 |
GenerateRegisterArgsPush(masm); |
|
| 1667 |
break; |
|
| 1668 |
default: |
|
| 1669 |
UNREACHABLE(); |
|
| 1670 |
} |
|
| 1671 |
|
|
| 1672 |
BinaryOpStub_GenerateSmiCode( |
|
| 1673 |
masm, &call_runtime, ALLOW_HEAPNUMBER_RESULTS, op_); |
|
| 1674 |
|
|
| 1675 |
// Floating point case. |
|
| 1676 |
switch (op_) {
|
|
| 1677 |
case Token::ADD: |
|
| 1678 |
case Token::SUB: |
|
| 1679 |
case Token::MUL: |
|
| 1680 |
case Token::DIV: {
|
|
| 1681 |
Label not_floats; |
|
| 1682 |
if (CpuFeatures::IsSupported(SSE2)) {
|
|
| 1683 |
CpuFeatureScope use_sse2(masm, SSE2); |
|
| 1684 |
FloatingPointHelper::LoadSSE2Operands(masm, ¬_floats); |
|
| 1685 |
|
|
| 1686 |
switch (op_) {
|
|
| 1687 |
case Token::ADD: __ addsd(xmm0, xmm1); break; |
|
| 1688 |
case Token::SUB: __ subsd(xmm0, xmm1); break; |
|
| 1689 |
case Token::MUL: __ mulsd(xmm0, xmm1); break; |
|
| 1690 |
case Token::DIV: __ divsd(xmm0, xmm1); break; |
|
| 1691 |
default: UNREACHABLE(); |
|
| 1692 |
} |
|
| 1693 |
BinaryOpStub_GenerateHeapResultAllocation(masm, &call_runtime, mode_); |
|
| 1694 |
__ movdbl(FieldOperand(eax, HeapNumber::kValueOffset), xmm0); |
|
| 1695 |
__ ret(0); |
|
| 1696 |
} else { // SSE2 not available, use FPU.
|
|
| 1697 |
FloatingPointHelper::CheckFloatOperands(masm, ¬_floats, ebx); |
|
| 1698 |
FloatingPointHelper::LoadFloatOperands( |
|
| 1699 |
masm, |
|
| 1700 |
ecx, |
|
| 1701 |
FloatingPointHelper::ARGS_IN_REGISTERS); |
|
| 1702 |
switch (op_) {
|
|
| 1703 |
case Token::ADD: __ faddp(1); break; |
|
| 1704 |
case Token::SUB: __ fsubp(1); break; |
|
| 1705 |
case Token::MUL: __ fmulp(1); break; |
|
| 1706 |
case Token::DIV: __ fdivp(1); break; |
|
| 1707 |
default: UNREACHABLE(); |
|
| 1708 |
} |
|
| 1709 |
Label after_alloc_failure; |
|
| 1710 |
BinaryOpStub_GenerateHeapResultAllocation( |
|
| 1711 |
masm, &after_alloc_failure, mode_); |
|
| 1712 |
__ fstp_d(FieldOperand(eax, HeapNumber::kValueOffset)); |
|
| 1713 |
__ ret(0); |
|
| 1714 |
__ bind(&after_alloc_failure); |
|
| 1715 |
__ fstp(0); // Pop FPU stack before calling runtime. |
|
| 1716 |
__ jmp(&call_runtime); |
|
| 1717 |
} |
|
| 1718 |
__ bind(¬_floats); |
|
| 1719 |
break; |
|
| 1720 |
} |
|
| 1721 |
case Token::MOD: {
|
|
| 1722 |
// For MOD we go directly to runtime in the non-smi case. |
|
| 1723 |
break; |
|
| 1724 |
} |
|
| 1725 |
case Token::BIT_OR: |
|
| 1726 |
case Token::BIT_AND: |
|
| 1727 |
case Token::BIT_XOR: |
|
| 1728 |
case Token::SAR: |
|
| 1729 |
case Token::SHL: |
|
| 1730 |
case Token::SHR: {
|
|
| 1731 |
Label non_smi_result; |
|
| 1732 |
bool use_sse3 = platform_specific_bit_; |
|
| 1733 |
FloatingPointHelper::LoadUnknownsAsIntegers(masm, |
|
| 1734 |
use_sse3, |
|
| 1735 |
BinaryOpIC::GENERIC, |
|
| 1736 |
BinaryOpIC::GENERIC, |
|
| 1737 |
&call_runtime); |
|
| 1738 |
switch (op_) {
|
|
| 1739 |
case Token::BIT_OR: __ or_(eax, ecx); break; |
|
| 1740 |
case Token::BIT_AND: __ and_(eax, ecx); break; |
|
| 1741 |
case Token::BIT_XOR: __ xor_(eax, ecx); break; |
|
| 1742 |
case Token::SAR: __ sar_cl(eax); break; |
|
| 1743 |
case Token::SHL: __ shl_cl(eax); break; |
|
| 1744 |
case Token::SHR: __ shr_cl(eax); break; |
|
| 1745 |
default: UNREACHABLE(); |
|
| 1746 |
} |
|
| 1747 |
if (op_ == Token::SHR) {
|
|
| 1748 |
// Check if result is non-negative and fits in a smi. |
|
| 1749 |
__ test(eax, Immediate(0xc0000000)); |
|
| 1750 |
__ j(not_zero, &call_runtime); |
|
| 1751 |
} else {
|
|
| 1752 |
// Check if result fits in a smi. |
|
| 1753 |
__ cmp(eax, 0xc0000000); |
|
| 1754 |
__ j(negative, &non_smi_result, Label::kNear); |
|
| 1755 |
} |
|
| 1756 |
// Tag smi result and return. |
|
| 1757 |
__ SmiTag(eax); |
|
| 1758 |
__ ret(2 * kPointerSize); // Drop the arguments from the stack. |
|
| 1759 |
|
|
| 1760 |
// All ops except SHR return a signed int32 that we load in |
|
| 1761 |
// a HeapNumber. |
|
| 1762 |
if (op_ != Token::SHR) {
|
|
| 1763 |
__ bind(&non_smi_result); |
|
| 1764 |
// Allocate a heap number if needed. |
|
| 1765 |
__ mov(ebx, eax); // ebx: result |
|
| 1766 |
Label skip_allocation; |
|
| 1767 |
switch (mode_) {
|
|
| 1768 |
case OVERWRITE_LEFT: |
|
| 1769 |
case OVERWRITE_RIGHT: |
|
| 1770 |
// If the operand was an object, we skip the |
|
| 1771 |
// allocation of a heap number. |
|
| 1772 |
__ mov(eax, Operand(esp, mode_ == OVERWRITE_RIGHT ? |
|
| 1773 |
1 * kPointerSize : 2 * kPointerSize)); |
|
| 1774 |
__ JumpIfNotSmi(eax, &skip_allocation, Label::kNear); |
|
| 1775 |
// Fall through! |
|
| 1776 |
case NO_OVERWRITE: |
|
| 1777 |
__ AllocateHeapNumber(eax, ecx, edx, &call_runtime); |
|
| 1778 |
__ bind(&skip_allocation); |
|
| 1779 |
break; |
|
| 1780 |
default: UNREACHABLE(); |
|
| 1781 |
} |
|
| 1782 |
// Store the result in the HeapNumber and return. |
|
| 1783 |
if (CpuFeatures::IsSupported(SSE2)) {
|
|
| 1784 |
CpuFeatureScope use_sse2(masm, SSE2); |
|
| 1785 |
__ cvtsi2sd(xmm0, ebx); |
|
| 1786 |
__ movdbl(FieldOperand(eax, HeapNumber::kValueOffset), xmm0); |
|
| 1787 |
} else {
|
|
| 1788 |
__ mov(Operand(esp, 1 * kPointerSize), ebx); |
|
| 1789 |
__ fild_s(Operand(esp, 1 * kPointerSize)); |
|
| 1790 |
__ fstp_d(FieldOperand(eax, HeapNumber::kValueOffset)); |
|
| 1791 |
} |
|
| 1792 |
__ ret(2 * kPointerSize); |
|
| 1793 |
} |
|
| 1794 |
break; |
|
| 1795 |
} |
|
| 1796 |
default: UNREACHABLE(); break; |
|
| 1797 |
} |
|
| 1798 |
|
|
| 1799 |
// If all else fails, use the runtime system to get the correct |
|
| 1800 |
// result. |
|
| 1801 |
__ bind(&call_runtime); |
|
| 1802 |
switch (op_) {
|
|
| 1803 |
case Token::ADD: |
|
| 1804 |
GenerateAddStrings(masm); |
|
| 1805 |
// Fall through. |
|
| 1806 |
case Token::SUB: |
|
| 1807 |
case Token::MUL: |
|
| 1808 |
case Token::DIV: |
|
| 1809 |
break; |
|
| 1810 |
case Token::MOD: |
|
| 1811 |
case Token::BIT_OR: |
|
| 1812 |
case Token::BIT_AND: |
|
| 1813 |
case Token::BIT_XOR: |
|
| 1814 |
case Token::SAR: |
|
| 1815 |
case Token::SHL: |
|
| 1816 |
case Token::SHR: |
|
| 1817 |
BinaryOpStub_GenerateRegisterArgsPop(masm); |
|
| 1818 |
break; |
|
| 1819 |
default: |
|
| 1820 |
UNREACHABLE(); |
|
| 1821 |
} |
|
| 1822 |
|
|
| 1823 |
{
|
|
| 1824 |
FrameScope scope(masm, StackFrame::INTERNAL); |
|
| 1825 |
__ push(edx); |
|
| 1826 |
__ push(eax); |
|
| 1827 |
GenerateCallRuntime(masm); |
|
| 1828 |
} |
|
| 1829 |
__ ret(0); |
|
| 1830 |
} |
|
| 1831 |
|
|
| 1832 |
|
|
| 1833 |
void BinaryOpStub::GenerateAddStrings(MacroAssembler* masm) {
|
|
| 1834 |
ASSERT(op_ == Token::ADD); |
|
| 1835 |
Label left_not_string, call_runtime; |
|
| 1836 |
|
|
| 1837 |
// Registers containing left and right operands respectively. |
|
| 1838 |
Register left = edx; |
|
| 1839 |
Register right = eax; |
|
| 1840 |
|
|
| 1841 |
// Test if left operand is a string. |
|
| 1842 |
__ JumpIfSmi(left, &left_not_string, Label::kNear); |
|
| 1843 |
__ CmpObjectType(left, FIRST_NONSTRING_TYPE, ecx); |
|
| 1844 |
__ j(above_equal, &left_not_string, Label::kNear); |
|
| 1845 |
|
|
| 1846 |
StringAddStub string_add_left_stub( |
|
| 1847 |
(StringAddFlags)(STRING_ADD_CHECK_RIGHT | STRING_ADD_ERECT_FRAME)); |
|
| 1848 |
GenerateRegisterArgsPush(masm); |
|
| 1849 |
__ TailCallStub(&string_add_left_stub); |
|
| 1850 |
|
|
| 1851 |
// Left operand is not a string, test right. |
|
| 1852 |
__ bind(&left_not_string); |
|
| 1853 |
__ JumpIfSmi(right, &call_runtime, Label::kNear); |
|
| 1854 |
__ CmpObjectType(right, FIRST_NONSTRING_TYPE, ecx); |
|
| 1855 |
__ j(above_equal, &call_runtime, Label::kNear); |
|
| 1856 |
|
|
| 1857 |
StringAddStub string_add_right_stub( |
|
| 1858 |
(StringAddFlags)(STRING_ADD_CHECK_LEFT | STRING_ADD_ERECT_FRAME)); |
|
| 1859 |
GenerateRegisterArgsPush(masm); |
|
| 1860 |
__ TailCallStub(&string_add_right_stub); |
|
| 1861 |
|
|
| 1862 |
// Neither argument is a string. |
|
| 1863 |
__ bind(&call_runtime); |
|
| 1864 |
} |
|
| 1865 |
|
|
| 1866 |
|
|
| 1867 |
static void BinaryOpStub_GenerateHeapResultAllocation(MacroAssembler* masm, |
|
| 1868 |
Label* alloc_failure, |
|
| 1869 |
OverwriteMode mode) {
|
|
| 1870 |
Label skip_allocation; |
|
| 1871 |
switch (mode) {
|
|
| 1872 |
case OVERWRITE_LEFT: {
|
|
| 1873 |
// If the argument in edx is already an object, we skip the |
|
| 1874 |
// allocation of a heap number. |
|
| 1875 |
__ JumpIfNotSmi(edx, &skip_allocation, Label::kNear); |
|
| 1876 |
// Allocate a heap number for the result. Keep eax and edx intact |
|
| 1877 |
// for the possible runtime call. |
|
| 1878 |
__ AllocateHeapNumber(ebx, ecx, no_reg, alloc_failure); |
|
| 1879 |
// Now edx can be overwritten losing one of the arguments as we are |
|
| 1880 |
// now done and will not need it any more. |
|
| 1881 |
__ mov(edx, ebx); |
|
| 1882 |
__ bind(&skip_allocation); |
|
| 1883 |
// Use object in edx as a result holder |
|
| 1884 |
__ mov(eax, edx); |
|
| 1885 |
break; |
|
| 1886 |
} |
|
| 1887 |
case OVERWRITE_RIGHT: |
|
| 1888 |
// If the argument in eax is already an object, we skip the |
|
| 1889 |
// allocation of a heap number. |
|
| 1890 |
__ JumpIfNotSmi(eax, &skip_allocation, Label::kNear); |
|
| 1891 |
// Fall through! |
|
| 1892 |
case NO_OVERWRITE: |
|
| 1893 |
// Allocate a heap number for the result. Keep eax and edx intact |
|
| 1894 |
// for the possible runtime call. |
|
| 1895 |
__ AllocateHeapNumber(ebx, ecx, no_reg, alloc_failure); |
|
| 1896 |
// Now eax can be overwritten losing one of the arguments as we are |
|
| 1897 |
// now done and will not need it any more. |
|
| 1898 |
__ mov(eax, ebx); |
|
| 1899 |
__ bind(&skip_allocation); |
|
| 1900 |
break; |
|
| 1901 |
default: UNREACHABLE(); |
|
| 1902 |
} |
|
| 1903 |
} |
|
| 1904 |
|
|
| 1905 |
|
|
| 1906 |
void BinaryOpStub::GenerateRegisterArgsPush(MacroAssembler* masm) {
|
|
| 1907 |
__ pop(ecx); |
|
| 1908 |
__ push(edx); |
|
| 1909 |
__ push(eax); |
|
| 1910 |
__ push(ecx); |
|
| 1911 |
} |
|
| 1912 |
|
|
| 1913 |
|
|
| 1914 | 651 |
void TranscendentalCacheStub::Generate(MacroAssembler* masm) {
|
| 1915 | 652 |
// TAGGED case: |
| 1916 | 653 |
// Input: |
| ... | ... | |
| 2034 | 771 |
__ ret(kPointerSize); |
| 2035 | 772 |
} else { // UNTAGGED.
|
| 2036 | 773 |
CpuFeatureScope scope(masm, SSE2); |
| 2037 |
__ movdbl(xmm1, FieldOperand(eax, HeapNumber::kValueOffset));
|
|
| 774 |
__ movsd(xmm1, FieldOperand(eax, HeapNumber::kValueOffset));
|
|
| 2038 | 775 |
__ Ret(); |
| 2039 | 776 |
} |
| 2040 | 777 |
|
| ... | ... | |
| 2049 | 786 |
CpuFeatureScope scope(masm, SSE2); |
| 2050 | 787 |
__ AllocateHeapNumber(eax, edi, no_reg, &skip_cache); |
| 2051 | 788 |
__ sub(esp, Immediate(kDoubleSize)); |
| 2052 |
__ movdbl(Operand(esp, 0), xmm1);
|
|
| 789 |
__ movsd(Operand(esp, 0), xmm1);
|
|
| 2053 | 790 |
__ fld_d(Operand(esp, 0)); |
| 2054 | 791 |
__ add(esp, Immediate(kDoubleSize)); |
| 2055 | 792 |
} |
| ... | ... | |
| 2062 | 799 |
__ ret(kPointerSize); |
| 2063 | 800 |
} else { // UNTAGGED.
|
| 2064 | 801 |
CpuFeatureScope scope(masm, SSE2); |
| 2065 |
__ movdbl(xmm1, FieldOperand(eax, HeapNumber::kValueOffset));
|
|
| 802 |
__ movsd(xmm1, FieldOperand(eax, HeapNumber::kValueOffset));
|
|
| 2066 | 803 |
__ Ret(); |
| 2067 | 804 |
|
| 2068 | 805 |
// Skip cache and return answer directly, only in untagged case. |
| 2069 | 806 |
__ bind(&skip_cache); |
| 2070 | 807 |
__ sub(esp, Immediate(kDoubleSize)); |
| 2071 |
__ movdbl(Operand(esp, 0), xmm1);
|
|
| 808 |
__ movsd(Operand(esp, 0), xmm1);
|
|
| 2072 | 809 |
__ fld_d(Operand(esp, 0)); |
| 2073 | 810 |
GenerateOperation(masm, type_); |
| 2074 | 811 |
__ fstp_d(Operand(esp, 0)); |
| 2075 |
__ movdbl(xmm1, Operand(esp, 0));
|
|
| 812 |
__ movsd(xmm1, Operand(esp, 0));
|
|
| 2076 | 813 |
__ add(esp, Immediate(kDoubleSize)); |
| 2077 | 814 |
// We return the value in xmm1 without adding it to the cache, but |
| 2078 | 815 |
// we cause a scavenging GC so that future allocations will succeed. |
| ... | ... | |
| 2098 | 835 |
__ bind(&runtime_call_clear_stack); |
| 2099 | 836 |
__ bind(&runtime_call); |
| 2100 | 837 |
__ AllocateHeapNumber(eax, edi, no_reg, &skip_cache); |
| 2101 |
__ movdbl(FieldOperand(eax, HeapNumber::kValueOffset), xmm1);
|
|
| 838 |
__ movsd(FieldOperand(eax, HeapNumber::kValueOffset), xmm1);
|
|
| 2102 | 839 |
{
|
| 2103 | 840 |
FrameScope scope(masm, StackFrame::INTERNAL); |
| 2104 | 841 |
__ push(eax); |
| 2105 | 842 |
__ CallRuntime(RuntimeFunction(), 1); |
| 2106 | 843 |
} |
| 2107 |
__ movdbl(xmm1, FieldOperand(eax, HeapNumber::kValueOffset));
|
|
| 844 |
__ movsd(xmm1, FieldOperand(eax, HeapNumber::kValueOffset));
|
|
| 2108 | 845 |
__ Ret(); |
| 2109 | 846 |
} |
| 2110 | 847 |
} |
| ... | ... | |
| 2221 | 958 |
} |
| 2222 | 959 |
|
| 2223 | 960 |
|
| 2224 |
// Input: edx, eax are the left and right objects of a bit op. |
|
| 2225 |
// Output: eax, ecx are left and right integers for a bit op. |
|
| 2226 |
// Warning: can clobber inputs even when it jumps to |conversion_failure|! |
|
| 2227 |
void FloatingPointHelper::LoadUnknownsAsIntegers( |
|
| 2228 |
MacroAssembler* masm, |
|
| 2229 |
bool use_sse3, |
|
| 2230 |
BinaryOpIC::TypeInfo left_type, |
|
| 2231 |
BinaryOpIC::TypeInfo right_type, |
|
| 2232 |
Label* conversion_failure) {
|
|
| 2233 |
// Check float operands. |
|
| 2234 |
Label arg1_is_object, check_undefined_arg1; |
|
| 2235 |
Label arg2_is_object, check_undefined_arg2; |
|
| 2236 |
Label load_arg2, done; |
|
| 2237 |
|
|
| 2238 |
// Test if arg1 is a Smi. |
|
| 2239 |
if (left_type == BinaryOpIC::SMI) {
|
|
| 2240 |
__ JumpIfNotSmi(edx, conversion_failure); |
|
| 2241 |
} else {
|
|
| 2242 |
__ JumpIfNotSmi(edx, &arg1_is_object, Label::kNear); |
|
| 2243 |
} |
|
| 2244 |
|
|
| 2245 |
__ SmiUntag(edx); |
|
| 2246 |
__ jmp(&load_arg2); |
|
| 2247 |
|
|
| 2248 |
// If the argument is undefined it converts to zero (ECMA-262, section 9.5). |
|
| 2249 |
__ bind(&check_undefined_arg1); |
|
| 2250 |
Factory* factory = masm->isolate()->factory(); |
|
| 2251 |
__ cmp(edx, factory->undefined_value()); |
|
| 2252 |
__ j(not_equal, conversion_failure); |
|
| 2253 |
__ mov(edx, Immediate(0)); |
|
| 2254 |
__ jmp(&load_arg2); |
|
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