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Issue 113343003: Remove the last remnants of the TranscendentalCache. (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Rebased Created 7 years ago
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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 // Redistribution and use in source and binary forms, with or without 2 // Redistribution 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 // * Redistributions of source code must retain the above copyright 6 // * Redistributions 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 // * Redistributions in binary form must reproduce the above 8 // * Redistributions 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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50 void StubRuntimeCallHelper::AfterCall(MacroAssembler* masm) const { 50 void StubRuntimeCallHelper::AfterCall(MacroAssembler* masm) const {
51 masm->LeaveFrame(StackFrame::INTERNAL); 51 masm->LeaveFrame(StackFrame::INTERNAL);
52 ASSERT(masm->has_frame()); 52 ASSERT(masm->has_frame());
53 masm->set_has_frame(false); 53 masm->set_has_frame(false);
54 } 54 }
55 55
56 56
57 #define __ masm. 57 #define __ masm.
58 58
59 59
60 UnaryMathFunction CreateTranscendentalFunction(TranscendentalCache::Type type) {
61 size_t actual_size;
62 // Allocate buffer in executable space.
63 byte* buffer = static_cast<byte*>(OS::Allocate(1 * KB,
64 &actual_size,
65 true));
66 if (buffer == NULL) {
67 // Fallback to library function if function cannot be created.
68 switch (type) {
69 case TranscendentalCache::LOG: return &log;
70 default: UNIMPLEMENTED();
71 }
72 }
73
74 MacroAssembler masm(NULL, buffer, static_cast<int>(actual_size));
75 // esp[1 * kPointerSize]: raw double input
76 // esp[0 * kPointerSize]: return address
77 // Move double input into registers.
78
79 __ push(ebx);
80 __ push(edx);
81 __ push(edi);
82 __ fld_d(Operand(esp, 4 * kPointerSize));
83 __ mov(ebx, Operand(esp, 4 * kPointerSize));
84 __ mov(edx, Operand(esp, 5 * kPointerSize));
85 TranscendentalCacheStub::GenerateOperation(&masm, type);
86 // The return value is expected to be on ST(0) of the FPU stack.
87 __ pop(edi);
88 __ pop(edx);
89 __ pop(ebx);
90 __ Ret();
91
92 CodeDesc desc;
93 masm.GetCode(&desc);
94 ASSERT(!RelocInfo::RequiresRelocation(desc));
95
96 CPU::FlushICache(buffer, actual_size);
97 OS::ProtectCode(buffer, actual_size);
98 return FUNCTION_CAST<UnaryMathFunction>(buffer);
99 }
100
101
102 UnaryMathFunction CreateExpFunction() { 60 UnaryMathFunction CreateExpFunction() {
103 if (!CpuFeatures::IsSupported(SSE2)) return &exp; 61 if (!CpuFeatures::IsSupported(SSE2)) return &exp;
104 if (!FLAG_fast_math) return &exp; 62 if (!FLAG_fast_math) return &exp;
105 size_t actual_size; 63 size_t actual_size;
106 byte* buffer = static_cast<byte*>(OS::Allocate(1 * KB, &actual_size, true)); 64 byte* buffer = static_cast<byte*>(OS::Allocate(1 * KB, &actual_size, true));
107 if (buffer == NULL) return &exp; 65 if (buffer == NULL) return &exp;
108 ExternalReference::InitializeMathExpData(); 66 ExternalReference::InitializeMathExpData();
109 67
110 MacroAssembler masm(NULL, buffer, static_cast<int>(actual_size)); 68 MacroAssembler masm(NULL, buffer, static_cast<int>(actual_size));
111 // esp[1 * kPointerSize]: raw double input 69 // esp[1 * kPointerSize]: raw double input
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1171 Code* stub = GetCodeAgeStub(isolate, age, parity); 1129 Code* stub = GetCodeAgeStub(isolate, age, parity);
1172 CodePatcher patcher(sequence, young_length); 1130 CodePatcher patcher(sequence, young_length);
1173 patcher.masm()->call(stub->instruction_start(), RelocInfo::NONE32); 1131 patcher.masm()->call(stub->instruction_start(), RelocInfo::NONE32);
1174 } 1132 }
1175 } 1133 }
1176 1134
1177 1135
1178 } } // namespace v8::internal 1136 } } // namespace v8::internal
1179 1137
1180 #endif // V8_TARGET_ARCH_IA32 1138 #endif // V8_TARGET_ARCH_IA32
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