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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_IA32 | 5 #if V8_TARGET_ARCH_IA32 |
| 6 | 6 |
| 7 #include "src/base/bits.h" | 7 #include "src/base/bits.h" |
| 8 #include "src/base/division-by-constant.h" | 8 #include "src/base/division-by-constant.h" |
| 9 #include "src/bootstrapper.h" | 9 #include "src/bootstrapper.h" |
| 10 #include "src/codegen.h" | 10 #include "src/codegen.h" |
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| 1894 int num_arguments) { | 1894 int num_arguments) { |
| 1895 mov(eax, Immediate(num_arguments)); | 1895 mov(eax, Immediate(num_arguments)); |
| 1896 mov(ebx, Immediate(ref)); | 1896 mov(ebx, Immediate(ref)); |
| 1897 | 1897 |
| 1898 CEntryStub stub(isolate(), 1); | 1898 CEntryStub stub(isolate(), 1); |
| 1899 CallStub(&stub); | 1899 CallStub(&stub); |
| 1900 } | 1900 } |
| 1901 | 1901 |
| 1902 | 1902 |
| 1903 void MacroAssembler::TailCallExternalReference(const ExternalReference& ext, | 1903 void MacroAssembler::TailCallExternalReference(const ExternalReference& ext, |
| 1904 int num_arguments, | 1904 int num_arguments) { |
| 1905 int result_size) { | |
| 1906 // TODO(1236192): Most runtime routines don't need the number of | 1905 // TODO(1236192): Most runtime routines don't need the number of |
| 1907 // arguments passed in because it is constant. At some point we | 1906 // arguments passed in because it is constant. At some point we |
| 1908 // should remove this need and make the runtime routine entry code | 1907 // should remove this need and make the runtime routine entry code |
| 1909 // smarter. | 1908 // smarter. |
| 1910 Move(eax, Immediate(num_arguments)); | 1909 Move(eax, Immediate(num_arguments)); |
| 1911 JumpToExternalReference(ext); | 1910 JumpToExternalReference(ext); |
| 1912 } | 1911 } |
| 1913 | 1912 |
| 1914 | 1913 |
| 1915 void MacroAssembler::TailCallRuntime(Runtime::FunctionId fid, | 1914 void MacroAssembler::TailCallRuntime(Runtime::FunctionId fid, |
| 1916 int num_arguments, | 1915 int num_arguments) { |
| 1917 int result_size) { | 1916 TailCallExternalReference(ExternalReference(fid, isolate()), num_arguments); |
| 1918 TailCallExternalReference(ExternalReference(fid, isolate()), | |
| 1919 num_arguments, | |
| 1920 result_size); | |
| 1921 } | 1917 } |
| 1922 | 1918 |
| 1923 | 1919 |
| 1924 void MacroAssembler::JumpToExternalReference(const ExternalReference& ext) { | 1920 void MacroAssembler::JumpToExternalReference(const ExternalReference& ext) { |
| 1925 // Set the entry point and jump to the C entry runtime stub. | 1921 // Set the entry point and jump to the C entry runtime stub. |
| 1926 mov(ebx, Immediate(ext)); | 1922 mov(ebx, Immediate(ext)); |
| 1927 CEntryStub ces(isolate(), 1); | 1923 CEntryStub ces(isolate(), 1); |
| 1928 jmp(ces.GetCode(), RelocInfo::CODE_TARGET); | 1924 jmp(ces.GetCode(), RelocInfo::CODE_TARGET); |
| 1929 } | 1925 } |
| 1930 | 1926 |
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| 3093 mov(eax, dividend); | 3089 mov(eax, dividend); |
| 3094 shr(eax, 31); | 3090 shr(eax, 31); |
| 3095 add(edx, eax); | 3091 add(edx, eax); |
| 3096 } | 3092 } |
| 3097 | 3093 |
| 3098 | 3094 |
| 3099 } // namespace internal | 3095 } // namespace internal |
| 3100 } // namespace v8 | 3096 } // namespace v8 |
| 3101 | 3097 |
| 3102 #endif // V8_TARGET_ARCH_IA32 | 3098 #endif // V8_TARGET_ARCH_IA32 |
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