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Issue 844006: Merge changes up to V8 version 2.1.3 into the partial snapshots (Closed) Base URL: http://v8.googlecode.com/svn/branches/experimental/partial_snapshots/
Patch Set: Created 10 years, 9 months ago
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1 // Copyright 2010 the V8 project authors. All rights reserved. 1 // Copyright 2010 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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25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 27
28 #include "v8.h" 28 #include "v8.h"
29 29
30 #include "codegen-inl.h" 30 #include "codegen-inl.h"
31 #include "compiler.h" 31 #include "compiler.h"
32 #include "debug.h" 32 #include "debug.h"
33 #include "full-codegen.h" 33 #include "full-codegen.h"
34 #include "parser.h" 34 #include "parser.h"
35 #include "scopes.h"
35 36
36 namespace v8 { 37 namespace v8 {
37 namespace internal { 38 namespace internal {
38 39
39 #define __ ACCESS_MASM(masm_) 40 #define __ ACCESS_MASM(masm_)
40 41
41 // Generate code for a JS function. On entry to the function the receiver 42 // Generate code for a JS function. On entry to the function the receiver
42 // and arguments have been pushed on the stack left to right, with the 43 // and arguments have been pushed on the stack left to right, with the
43 // return address on top of them. The actual argument count matches the 44 // return address on top of them. The actual argument count matches the
44 // formal parameter count expected by the function. 45 // formal parameter count expected by the function.
45 // 46 //
46 // The live registers are: 47 // The live registers are:
47 // o rdi: the JS function object being called (ie, ourselves) 48 // o rdi: the JS function object being called (ie, ourselves)
48 // o rsi: our context 49 // o rsi: our context
49 // o rbp: our caller's frame pointer 50 // o rbp: our caller's frame pointer
50 // o rsp: stack pointer (pointing to return address) 51 // o rsp: stack pointer (pointing to return address)
51 // 52 //
52 // The function builds a JS frame. Please see JavaScriptFrameConstants in 53 // The function builds a JS frame. Please see JavaScriptFrameConstants in
53 // frames-x64.h for its layout. 54 // frames-x64.h for its layout.
54 void FullCodeGenerator::Generate(CompilationInfo* info, Mode mode) { 55 void FullCodeGenerator::Generate(CompilationInfo* info, Mode mode) {
55 ASSERT(info_ == NULL); 56 ASSERT(info_ == NULL);
56 info_ = info; 57 info_ = info;
57 SetFunctionPosition(function()); 58 SetFunctionPosition(function());
59 Comment cmnt(masm_, "[ function compiled by full code generator");
58 60
59 if (mode == PRIMARY) { 61 if (mode == PRIMARY) {
60 __ push(rbp); // Caller's frame pointer. 62 __ push(rbp); // Caller's frame pointer.
61 __ movq(rbp, rsp); 63 __ movq(rbp, rsp);
62 __ push(rsi); // Callee's context. 64 __ push(rsi); // Callee's context.
63 __ push(rdi); // Callee's JS Function. 65 __ push(rdi); // Callee's JS Function.
64 66
65 { Comment cmnt(masm_, "[ Allocate locals"); 67 { Comment cmnt(masm_, "[ Allocate locals");
66 int locals_count = scope()->num_stack_slots(); 68 int locals_count = scope()->num_stack_slots();
67 if (locals_count == 1) { 69 if (locals_count == 1) {
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1982 __ movq(Operand(rsp, 0), rdx); 1984 __ movq(Operand(rsp, 0), rdx);
1983 // And return. 1985 // And return.
1984 __ ret(0); 1986 __ ret(0);
1985 } 1987 }
1986 1988
1987 1989
1988 #undef __ 1990 #undef __
1989 1991
1990 1992
1991 } } // namespace v8::internal 1993 } } // namespace v8::internal
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