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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 #if V8_TARGET_ARCH_MIPS64 | 5 #if V8_TARGET_ARCH_MIPS64 |
6 | 6 |
7 #include "src/bootstrapper.h" | 7 #include "src/bootstrapper.h" |
8 #include "src/code-stubs.h" | 8 #include "src/code-stubs.h" |
9 #include "src/codegen.h" | 9 #include "src/codegen.h" |
10 #include "src/ic/handler-compiler.h" | 10 #include "src/ic/handler-compiler.h" |
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3891 __ bind(&need_incremental); | 3891 __ bind(&need_incremental); |
3892 | 3892 |
3893 // Fall through when we need to inform the incremental marker. | 3893 // Fall through when we need to inform the incremental marker. |
3894 } | 3894 } |
3895 | 3895 |
3896 | 3896 |
3897 void StubFailureTrampolineStub::Generate(MacroAssembler* masm) { | 3897 void StubFailureTrampolineStub::Generate(MacroAssembler* masm) { |
3898 CEntryStub ces(isolate(), 1, kSaveFPRegs); | 3898 CEntryStub ces(isolate(), 1, kSaveFPRegs); |
3899 __ Call(ces.GetCode(), RelocInfo::CODE_TARGET); | 3899 __ Call(ces.GetCode(), RelocInfo::CODE_TARGET); |
3900 int parameter_count_offset = | 3900 int parameter_count_offset = |
3901 StubFailureTrampolineFrame::kCallerStackParameterCountFrameOffset; | 3901 StubFailureTrampolineFrameConstants::kArgumentsLengthOffset; |
3902 __ ld(a1, MemOperand(fp, parameter_count_offset)); | 3902 __ ld(a1, MemOperand(fp, parameter_count_offset)); |
3903 if (function_mode() == JS_FUNCTION_STUB_MODE) { | 3903 if (function_mode() == JS_FUNCTION_STUB_MODE) { |
3904 __ Daddu(a1, a1, Operand(1)); | 3904 __ Daddu(a1, a1, Operand(1)); |
3905 } | 3905 } |
3906 masm->LeaveFrame(StackFrame::STUB_FAILURE_TRAMPOLINE); | 3906 masm->LeaveFrame(StackFrame::STUB_FAILURE_TRAMPOLINE); |
3907 __ dsll(a1, a1, kPointerSizeLog2); | 3907 __ dsll(a1, a1, kPointerSizeLog2); |
3908 __ Ret(USE_DELAY_SLOT); | 3908 __ Ret(USE_DELAY_SLOT); |
3909 __ Daddu(sp, sp, a1); | 3909 __ Daddu(sp, sp, a1); |
3910 } | 3910 } |
3911 | 3911 |
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4875 // we reach the JavaScript frame for the function (similar to what the | 4875 // we reach the JavaScript frame for the function (similar to what the |
4876 // runtime fallback implementation does). So make a2 point to that | 4876 // runtime fallback implementation does). So make a2 point to that |
4877 // JavaScript frame. | 4877 // JavaScript frame. |
4878 { | 4878 { |
4879 Label loop, loop_entry; | 4879 Label loop, loop_entry; |
4880 __ Branch(USE_DELAY_SLOT, &loop_entry); | 4880 __ Branch(USE_DELAY_SLOT, &loop_entry); |
4881 __ mov(a2, fp); // In delay slot. | 4881 __ mov(a2, fp); // In delay slot. |
4882 __ bind(&loop); | 4882 __ bind(&loop); |
4883 __ ld(a2, MemOperand(a2, StandardFrameConstants::kCallerFPOffset)); | 4883 __ ld(a2, MemOperand(a2, StandardFrameConstants::kCallerFPOffset)); |
4884 __ bind(&loop_entry); | 4884 __ bind(&loop_entry); |
4885 __ ld(a3, MemOperand(a2, StandardFrameConstants::kMarkerOffset)); | 4885 __ ld(a3, MemOperand(a2, StandardFrameConstants::kFunctionOffset)); |
4886 __ Branch(&loop, ne, a1, Operand(a3)); | 4886 __ Branch(&loop, ne, a1, Operand(a3)); |
4887 } | 4887 } |
4888 | 4888 |
4889 // Check if we have rest parameters (only possible if we have an | 4889 // Check if we have rest parameters (only possible if we have an |
4890 // arguments adaptor frame below the function frame). | 4890 // arguments adaptor frame below the function frame). |
4891 Label no_rest_parameters; | 4891 Label no_rest_parameters; |
4892 __ ld(a2, MemOperand(a2, StandardFrameConstants::kCallerFPOffset)); | 4892 __ ld(a2, MemOperand(a2, StandardFrameConstants::kCallerFPOffset)); |
4893 __ ld(a3, MemOperand(a2, StandardFrameConstants::kContextOffset)); | 4893 __ ld(a3, MemOperand(a2, CommonFrameConstants::kContextOrFrameTypeOffset)); |
4894 __ Branch(&no_rest_parameters, ne, a3, | 4894 __ Branch(&no_rest_parameters, ne, a3, |
4895 Operand(Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR))); | 4895 Operand(Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR))); |
4896 | 4896 |
4897 // Check if the arguments adaptor frame contains more arguments than | 4897 // Check if the arguments adaptor frame contains more arguments than |
4898 // specified by the function's internal formal parameter count. | 4898 // specified by the function's internal formal parameter count. |
4899 Label rest_parameters; | 4899 Label rest_parameters; |
4900 __ SmiLoadUntag( | 4900 __ SmiLoadUntag( |
4901 a0, MemOperand(a2, ArgumentsAdaptorFrameConstants::kLengthOffset)); | 4901 a0, MemOperand(a2, ArgumentsAdaptorFrameConstants::kLengthOffset)); |
4902 __ ld(a1, FieldMemOperand(a1, JSFunction::kSharedFunctionInfoOffset)); | 4902 __ ld(a1, FieldMemOperand(a1, JSFunction::kSharedFunctionInfoOffset)); |
4903 __ lw(a1, | 4903 __ lw(a1, |
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5028 // a1 : function | 5028 // a1 : function |
5029 // a2 : number of parameters (tagged) | 5029 // a2 : number of parameters (tagged) |
5030 // a3 : parameters pointer | 5030 // a3 : parameters pointer |
5031 // Registers used over whole function: | 5031 // Registers used over whole function: |
5032 // a5 : arguments count (tagged) | 5032 // a5 : arguments count (tagged) |
5033 // a6 : mapped parameter count (tagged) | 5033 // a6 : mapped parameter count (tagged) |
5034 | 5034 |
5035 // Check if the calling frame is an arguments adaptor frame. | 5035 // Check if the calling frame is an arguments adaptor frame. |
5036 Label adaptor_frame, try_allocate, runtime; | 5036 Label adaptor_frame, try_allocate, runtime; |
5037 __ ld(a4, MemOperand(fp, StandardFrameConstants::kCallerFPOffset)); | 5037 __ ld(a4, MemOperand(fp, StandardFrameConstants::kCallerFPOffset)); |
5038 __ ld(a0, MemOperand(a4, StandardFrameConstants::kContextOffset)); | 5038 __ ld(a0, MemOperand(a4, CommonFrameConstants::kContextOrFrameTypeOffset)); |
5039 __ Branch(&adaptor_frame, eq, a0, | 5039 __ Branch(&adaptor_frame, eq, a0, |
5040 Operand(Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR))); | 5040 Operand(Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR))); |
5041 | 5041 |
5042 // No adaptor, parameter count = argument count. | 5042 // No adaptor, parameter count = argument count. |
5043 __ mov(a5, a2); | 5043 __ mov(a5, a2); |
5044 __ Branch(USE_DELAY_SLOT, &try_allocate); | 5044 __ Branch(USE_DELAY_SLOT, &try_allocate); |
5045 __ mov(a6, a2); // In delay slot. | 5045 __ mov(a6, a2); // In delay slot. |
5046 | 5046 |
5047 // We have an adaptor frame. Patch the parameters pointer. | 5047 // We have an adaptor frame. Patch the parameters pointer. |
5048 __ bind(&adaptor_frame); | 5048 __ bind(&adaptor_frame); |
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5241 // we reach the JavaScript frame for the function (similar to what the | 5241 // we reach the JavaScript frame for the function (similar to what the |
5242 // runtime fallback implementation does). So make a2 point to that | 5242 // runtime fallback implementation does). So make a2 point to that |
5243 // JavaScript frame. | 5243 // JavaScript frame. |
5244 { | 5244 { |
5245 Label loop, loop_entry; | 5245 Label loop, loop_entry; |
5246 __ Branch(USE_DELAY_SLOT, &loop_entry); | 5246 __ Branch(USE_DELAY_SLOT, &loop_entry); |
5247 __ mov(a2, fp); // In delay slot. | 5247 __ mov(a2, fp); // In delay slot. |
5248 __ bind(&loop); | 5248 __ bind(&loop); |
5249 __ ld(a2, MemOperand(a2, StandardFrameConstants::kCallerFPOffset)); | 5249 __ ld(a2, MemOperand(a2, StandardFrameConstants::kCallerFPOffset)); |
5250 __ bind(&loop_entry); | 5250 __ bind(&loop_entry); |
5251 __ ld(a3, MemOperand(a2, StandardFrameConstants::kMarkerOffset)); | 5251 __ ld(a3, MemOperand(a2, StandardFrameConstants::kFunctionOffset)); |
5252 __ Branch(&loop, ne, a1, Operand(a3)); | 5252 __ Branch(&loop, ne, a1, Operand(a3)); |
5253 } | 5253 } |
5254 | 5254 |
5255 // Check if we have an arguments adaptor frame below the function frame. | 5255 // Check if we have an arguments adaptor frame below the function frame. |
5256 Label arguments_adaptor, arguments_done; | 5256 Label arguments_adaptor, arguments_done; |
5257 __ ld(a3, MemOperand(a2, StandardFrameConstants::kCallerFPOffset)); | 5257 __ ld(a3, MemOperand(a2, StandardFrameConstants::kCallerFPOffset)); |
5258 __ ld(a0, MemOperand(a3, StandardFrameConstants::kContextOffset)); | 5258 __ ld(a0, MemOperand(a3, CommonFrameConstants::kContextOrFrameTypeOffset)); |
5259 __ Branch(&arguments_adaptor, eq, a0, | 5259 __ Branch(&arguments_adaptor, eq, a0, |
5260 Operand(Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR))); | 5260 Operand(Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR))); |
5261 { | 5261 { |
5262 __ ld(a1, FieldMemOperand(a1, JSFunction::kSharedFunctionInfoOffset)); | 5262 __ ld(a1, FieldMemOperand(a1, JSFunction::kSharedFunctionInfoOffset)); |
5263 __ lw(a0, | 5263 __ lw(a0, |
5264 FieldMemOperand(a1, SharedFunctionInfo::kFormalParameterCountOffset)); | 5264 FieldMemOperand(a1, SharedFunctionInfo::kFormalParameterCountOffset)); |
5265 __ Dlsa(a2, a2, a0, kPointerSizeLog2); | 5265 __ Dlsa(a2, a2, a0, kPointerSizeLog2); |
5266 __ Daddu(a2, a2, Operand(StandardFrameConstants::kCallerSPOffset - | 5266 __ Daddu(a2, a2, Operand(StandardFrameConstants::kCallerSPOffset - |
5267 1 * kPointerSize)); | 5267 1 * kPointerSize)); |
5268 } | 5268 } |
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5797 return_value_operand, NULL); | 5797 return_value_operand, NULL); |
5798 } | 5798 } |
5799 | 5799 |
5800 | 5800 |
5801 #undef __ | 5801 #undef __ |
5802 | 5802 |
5803 } // namespace internal | 5803 } // namespace internal |
5804 } // namespace v8 | 5804 } // namespace v8 |
5805 | 5805 |
5806 #endif // V8_TARGET_ARCH_MIPS64 | 5806 #endif // V8_TARGET_ARCH_MIPS64 |
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