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Abstracted more (most) ABI details out of the normal codegen.
author Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
date Tue, 03 Mar 2009 02:51:21 +0100
parents 1714836f2c0b
children 9dca7182aa75
comparison
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1023:ca191c141cec 1024:9167d492cbc2
1 #ifndef LDC_IR_IRFUNCTION_H 1 #ifndef LDC_IR_IRFUNCTION_H
2 #define LDC_IR_IRFUNCTION_H 2 #define LDC_IR_IRFUNCTION_H
3 3
4 #include "gen/llvm.h"
4 #include "ir/ir.h" 5 #include "ir/ir.h"
5 #include "ir/irlandingpad.h" 6 #include "ir/irlandingpad.h"
6 7
7 #include <vector> 8 #include <vector>
8 #include <stack> 9 #include <stack>
9 #include <map> 10 #include <map>
11
12 struct ABIRewrite;
13
14 // represents a function type argument
15 // both explicit and implicit as well as return values
16 struct IrFuncTyArg : IrBase
17 {
18 Type* type;
19 const llvm::Type* ltype;
20 unsigned attrs;
21 bool byref;
22
23 ABIRewrite* rewrite;
24
25 bool isInReg() const { return (attrs & llvm::Attribute::InReg) != 0; }
26 bool isSRet() const { return (attrs & llvm::Attribute::StructRet) != 0; }
27 bool isByVal() const { return (attrs & llvm::Attribute::ByVal) != 0; }
28
29 IrFuncTyArg(Type* t, bool byref, unsigned a = 0);
30 };
31
32 // represents a function type
33 struct IrFuncTy : IrBase
34 {
35 // return value
36 IrFuncTyArg* ret;
37
38 // null if not applicable
39 IrFuncTyArg* arg_sret;
40 IrFuncTyArg* arg_this;
41 IrFuncTyArg* arg_nest;
42 IrFuncTyArg* arg_arguments;
43 IrFuncTyArg* arg_argptr;
44
45 // normal explicit arguments
46 LLSmallVector<IrFuncTyArg*, 4> args;
47
48 // C varargs
49 bool c_vararg;
50
51 // range of normal parameters to reverse
52 bool reverseParams;
53
54 IrFuncTy()
55 : ret(NULL),
56 arg_sret(NULL),
57 arg_this(NULL),
58 arg_nest(NULL),
59 arg_arguments(NULL),
60 arg_argptr(NULL),
61 c_vararg(false),
62 reverseParams(false)
63 {}
64
65 llvm::Value* putRet(Type* dty, llvm::Value* val);
66 llvm::Value* getRet(Type* dty, llvm::Value* val);
67
68 llvm::Value* getParam(Type* dty, int idx, llvm::Value* val);
69 llvm::Value* putParam(Type* dty, int idx, llvm::Value* val);
70 };
10 71
11 // represents a function 72 // represents a function
12 struct IrFunction : IrBase 73 struct IrFunction : IrBase
13 { 74 {
14 llvm::Function* func; 75 llvm::Function* func;