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annotate ir/irfunction.cpp @ 1042:45af482e3832

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Updated ABI handling to be more flexible with regard to reusing lvalues and allocating fewer temporaries.
author Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
date Wed, 04 Mar 2009 17:24:25 +0100
parents 9167d492cbc2
children 32ead42679d1
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d59c363fccad [svn r330] Implemented synchronized statements.
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1
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2 #include "gen/llvm.h"
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3 #include "gen/tollvm.h"
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4 #include "gen/abi.h"
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5 #include "gen/dvalue.h"
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6 #include "ir/irfunction.h"
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8 #include <sstream>
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9
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10 //////////////////////////////////////////////////////////////////////////////
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11 //////////////////////////////////////////////////////////////////////////////
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12 //////////////////////////////////////////////////////////////////////////////
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13
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14 IrFuncTyArg::IrFuncTyArg(Type* t, bool bref, unsigned a)
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15 {
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16 type = t;
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17 ltype = bref ? DtoType(t->pointerTo()) : DtoType(t);
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18 attrs = a;
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19 byref = bref;
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20 rewrite = NULL;
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21 }
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22
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23 //////////////////////////////////////////////////////////////////////////////
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24 //////////////////////////////////////////////////////////////////////////////
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25 //////////////////////////////////////////////////////////////////////////////
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26
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27 llvm::Value* IrFuncTy::putRet(Type* dty, DValue* val)
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28 {
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29 assert(!arg_sret);
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30 if (ret->rewrite)
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31 return ret->rewrite->put(dty, val);
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32 return val->getRVal();
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33 }
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34
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35 llvm::Value* IrFuncTy::getRet(Type* dty, DValue* val)
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36 {
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37 assert(!arg_sret);
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38 if (ret->rewrite)
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39 return ret->rewrite->get(dty, val);
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40 return val->getRVal();
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41 }
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42
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43 llvm::Value* IrFuncTy::putParam(Type* dty, int idx, DValue* val)
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44 {
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45 assert(idx >= 0 && idx < args.size() && "invalid putParam");
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46 if (args[idx]->rewrite)
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47 return args[idx]->rewrite->put(dty, val);
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48 return val->getRVal();
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49 }
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50
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51 llvm::Value* IrFuncTy::getParam(Type* dty, int idx, DValue* val)
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52 {
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53 assert(idx >= 0 && idx < args.size() && "invalid getParam");
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54 if (args[idx]->rewrite)
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55 return args[idx]->rewrite->get(dty, val);
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56 return val->getRVal();
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57 }
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58
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59 void IrFuncTy::getParam(Type* dty, int idx, DValue* val, llvm::Value* lval)
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60 {
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61 assert(idx >= 0 && idx < args.size() && "invalid getParam");
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63 if (args[idx]->rewrite)
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64 {
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65 args[idx]->rewrite->getL(dty, val, lval);
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66 return;
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67 }
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68
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69 DtoStore(val->getRVal(), lval);
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70 }
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71
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72 //////////////////////////////////////////////////////////////////////////////
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73 //////////////////////////////////////////////////////////////////////////////
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74 //////////////////////////////////////////////////////////////////////////////
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75
136
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76 IrFunction::IrFunction(FuncDeclaration* fd)
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77 {
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78 decl = fd;
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79
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80 Type* t = fd->type->toBasetype();
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81 assert(t->ty == Tfunction);
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82 type = (TypeFunction*)t;
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83 func = NULL;
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84 allocapoint = NULL;
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85
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86 queued = false;
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87 defined = false;
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88
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89 retArg = NULL;
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90 thisArg = NULL;
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91 nestArg = NULL;
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92
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93 nestedVar = NULL;
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94
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95 _arguments = NULL;
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96 _argptr = NULL;
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97
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98 nextUnique.push(0);
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99 }
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100
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101 std::string IrFunction::getScopedLabelName(const char* ident)
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102 {
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103 if(labelScopes.empty())
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104 return std::string(ident);
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105
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106 std::string result = "__";
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107 for(unsigned int i = 0; i < labelScopes.size(); ++i)
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108 result += labelScopes[i] + "_";
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109 return result + ident;
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110 }
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111
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112 void IrFunction::pushUniqueLabelScope(const char* name)
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113 {
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114 std::ostringstream uniquename;
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115 uniquename << name << nextUnique.top()++;
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116 nextUnique.push(0);
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117 labelScopes.push_back(uniquename.str());
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118 }
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119
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120 void IrFunction::popLabelScope()
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121 {
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122 labelScopes.pop_back();
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123 nextUnique.pop();
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124 }
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125
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126 void IrFunction::setNeverInline()
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127 {
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128 assert(!func->hasFnAttr(llvm::Attribute::AlwaysInline) && "function can't be never- and always-inline at the same time");
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129 func->addFnAttr(llvm::Attribute::NoInline);
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130 }
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131
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132 void IrFunction::setAlwaysInline()
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133 {
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134 assert(!func->hasFnAttr(llvm::Attribute::NoInline) && "function can't be never- and always-inline at the same time");
df196c8dea26 Updated to latest LLVM trunk, function notes have been removed and merged with parameter attributes, which have been renamed to just attributes. Nothing seems to have broke!
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135 func->addFnAttr(llvm::Attribute::AlwaysInline);
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136 }