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1 // Copyright 2013 the V8 project authors. All rights reserved. | 1 // Copyright 2013 the V8 project authors. All rights reserved. |
2 // Rrdistribution and use in source and binary forms, with or without | 2 // Rrdistribution 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 // * Rrdistributions of source code must retain the above copyright | 6 // * Rrdistributions 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 // * Rrdistributions in binary form must reproduce the above | 8 // * Rrdistributions 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 |
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68 __ MultiPushFPU(kCalleeSavedFPU); | 68 __ MultiPushFPU(kCalleeSavedFPU); |
69 // Set up the reserved register for 0.0. | 69 // Set up the reserved register for 0.0. |
70 __ Move(kDoubleRegZero, 0.0); | 70 __ Move(kDoubleRegZero, 0.0); |
71 | 71 |
72 // For softfp, move the input value into f12. | 72 // For softfp, move the input value into f12. |
73 if (IsMipsSoftFloatABI) { | 73 if (IsMipsSoftFloatABI) { |
74 __ Move(f12, a0, a1); | 74 __ Move(f12, a0, a1); |
75 } | 75 } |
76 // Push the double argument. | 76 // Push the double argument. |
77 __ Subu(sp, sp, Operand(kDoubleSize)); | 77 __ Subu(sp, sp, Operand(kDoubleSize)); |
78 __ sdc1(f12, MemOperand(sp)); | 78 __ Sdc1(f12, MemOperand(sp)); |
79 __ Move(source_reg, sp); | 79 __ Move(source_reg, sp); |
80 | 80 |
81 // Save registers make sure they don't get clobbered. | 81 // Save registers make sure they don't get clobbered. |
82 int source_reg_offset = kDoubleSize; | 82 int source_reg_offset = kDoubleSize; |
83 int reg_num = 2; | 83 int reg_num = 2; |
84 for (; reg_num < Register::kNumRegisters; ++reg_num) { | 84 for (; reg_num < Register::kNumRegisters; ++reg_num) { |
85 if (RegisterConfiguration::Crankshaft()->IsAllocatableGeneralCode( | 85 if (RegisterConfiguration::Crankshaft()->IsAllocatableGeneralCode( |
86 reg_num)) { | 86 reg_num)) { |
87 Register reg = Register::from_code(reg_num); | 87 Register reg = Register::from_code(reg_num); |
88 if (!reg.is(destination_reg)) { | 88 if (!reg.is(destination_reg)) { |
89 __ push(reg); | 89 __ push(reg); |
90 source_reg_offset += kPointerSize; | 90 source_reg_offset += kPointerSize; |
91 } | 91 } |
92 } | 92 } |
93 } | 93 } |
94 | 94 |
95 // Re-push the double argument. | 95 // Re-push the double argument. |
96 __ Subu(sp, sp, Operand(kDoubleSize)); | 96 __ Subu(sp, sp, Operand(kDoubleSize)); |
97 __ sdc1(f12, MemOperand(sp)); | 97 __ Sdc1(f12, MemOperand(sp)); |
98 | 98 |
99 // Call through to the actual stub | 99 // Call through to the actual stub |
100 if (inline_fastpath) { | 100 if (inline_fastpath) { |
101 __ ldc1(f12, MemOperand(source_reg)); | 101 __ Ldc1(f12, MemOperand(source_reg)); |
102 __ TryInlineTruncateDoubleToI(destination_reg, f12, &done); | 102 __ TryInlineTruncateDoubleToI(destination_reg, f12, &done); |
103 if (destination_reg.is(source_reg) && !source_reg.is(sp)) { | 103 if (destination_reg.is(source_reg) && !source_reg.is(sp)) { |
104 // Restore clobbered source_reg. | 104 // Restore clobbered source_reg. |
105 __ Addu(source_reg, sp, Operand(source_reg_offset)); | 105 __ Addu(source_reg, sp, Operand(source_reg_offset)); |
106 } | 106 } |
107 } | 107 } |
108 __ Call(start, RelocInfo::EXTERNAL_REFERENCE); | 108 __ Call(start, RelocInfo::EXTERNAL_REFERENCE); |
109 __ bind(&done); | 109 __ bind(&done); |
110 | 110 |
111 __ Addu(sp, sp, Operand(kDoubleSize)); | 111 __ Addu(sp, sp, Operand(kDoubleSize)); |
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196 false)); | 196 false)); |
197 RunAllTruncationTests( | 197 RunAllTruncationTests( |
198 RunGeneratedCodeCallWrapper, | 198 RunGeneratedCodeCallWrapper, |
199 MakeConvertDToIFuncTrampoline(isolate, | 199 MakeConvertDToIFuncTrampoline(isolate, |
200 source_registers[s], | 200 source_registers[s], |
201 dest_registers[d], | 201 dest_registers[d], |
202 true)); | 202 true)); |
203 } | 203 } |
204 } | 204 } |
205 } | 205 } |
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