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Produce something resembling correct il from low level dialect
author Michael Pavone <pavone@retrodev.com>
date Mon, 13 Apr 2015 22:42:27 -0700
parents f987bb2a1911
children 95bc24c729e6
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 {
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2 _compileError <- :_msg _line {
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3 #{
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4 isError? <- { true }
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5 msg <- { _msg }
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6 line <- { _line }
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7 }
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8 }
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9
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10 _notError:else <- :vals ifnoterr iferror {
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11 if: (object does: vals understand?: "find") {
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12 maybeErr <- vals find: :val {
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13 (object does: val understand?: "isError?") && (val isError?)
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14 }
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15 maybeErr value: :err {
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16 iferror: err
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17 } none: ifnoterr
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18 } else: ifnoterr
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19 }
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20
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21 _notError <- :vals ifnoterr {
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22 _notError: vals ifnoterr else: :e { e }
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23 }
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24
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25 _ilFun <- :_name {
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26 _buff <- #[]
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27 _blockStack <- []
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28 _nextReg <- 0
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29 #{
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30 name <- { _name }
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31 add <- :inst { _buff append: inst }
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32 getReg <- {
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33 r <- il reg: _nextReg
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34 _nextReg <- _nextReg + 1
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35 r
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36 }
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37 startBlock <- {
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38 _blockStack <- _buff | _blockStack
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39 _buff <- #[]
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40 }
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41 popBlock <- {
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42 res <- _buff
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43 _buff <- _blockStack value
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44 _blockStack <- _blockStack tail
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45 res
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46 }
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47 buffer <- { _buff }
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48 }
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49 }
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50
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51 _sizeMap <- dict hash
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52 _sizeMap set: "8" (il b)
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53 _sizeMap set: "16" (il w)
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54 _sizeMap set: "32" (il l)
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55 _sizeMap set: "64" (il q)
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56
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57 _parseType <- :expr {
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58 if: (expr nodeType) = (ast sym) {
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59 name <- expr name
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60 _signed? <- true
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61 if: (name startsWith?: "u") {
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62 _signed? <- false
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63 name <- name from: 1
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64 }
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65 if: (name startsWith?: "int") && ((name length) <= 5) {
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66 size <- name from: 3
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67 _sizeMap ifget: size :llsize {
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68 #{
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69 size <- llsize
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70 signed? <- _signed?
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71 }
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72 } else: {
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73 _compileError: "LL integer type " . (expr name) . " has an invalid size"
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74 }
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75 } else: {
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76 _compileError: "LL Type " . (expr name) . " not implemented yet"
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77 }
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78 } else: {
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79 _compileError: "LL Type with node type " . (expr nodeType) . " not implemented yet"
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80 }
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81 }
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82
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83 _exprHandlers <- false
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84 _compileExpr:syms:ilfun:dest <- :expr :syms :ilf :dst {
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85 _exprHandlers ifget: (expr nodeType) :handler {
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86 handler: expr syms ilf dst
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87 } else: {
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88 _compileError: "Expression with node type " . (expr nodeType) . " not implemented yet"
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89 }
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90 }
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91 _opMap <- false
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92
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93 _compOps <- false
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94
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95 _compileBinary <- :expr syms ilf assignTo {
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96 _assignSize? <- false
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97 _asize <- il b
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98 dest <- assignTo value: :asn {
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99 _assignSize? <- true
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100 _asize <- asn size
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101 asn
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102 } none: {
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103 #{
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104 val <- ilf getReg
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105 signed? <- true
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106 size <- _asize
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107 }
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108 }
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109 l <- _compileExpr: (expr left) syms: syms ilfun: ilf dest: (option value: dest)
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110 r <- _compileExpr: (expr right) syms: syms ilfun: ilf dest: (option none)
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111 _notError: [(l) (r)] {
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112 lv <- l val
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113 ls <- l size
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114 rv <- r val
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115 rs <- r size
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116 _size <- if: ls > rs {
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117 ls
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118 //TODO: sign/zero extend rv
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119 } else: {
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120 rs
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121 //TODO: sign/zero extend lv if rs > ls
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122 }
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123 if: _assignSize? && _asize > _size {
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124 _size <- _asize
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125 //TODO: sign/zero extend result
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126 }
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127 _signed <- (l signed?) || (r signed?)
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128 _opMap ifget: (expr op) :ingen {
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129 ilf add: (ingen: lv rv (dest val) _size)
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130 #{
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131 val <- dest val
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132 size <- _size
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133 signed? <- _signed
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134 }
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135 } else: {
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136 _compOps ifget: (expr op) :condFun {
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137 ilf add: (il cmp: lv rv _size)
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138 cond <- condFun: _signed
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139 ilf add: (il bool: cond (dest val))
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140 #{
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141 val <- dest val
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142 size <- il b
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143 signed? <- false
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144 }
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145 } else: {
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146 _compileError: "Operator " . (expr op) . " is not supported yet\n" 0
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147 }
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148 }
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149 }
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150 }
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151 _compileString <- :expr syms ilf assignTo {
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152
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153 }
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154 _compileInt <- :expr syms ilf assignTo {
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155 sz <- il sizeFromBytes: (expr size)
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156 assignTo value: :asn {
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157 ilf add: (il mov: (expr val) (asn val) sz)
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158 #{
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159 val <- asn val
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160 signed? <- expr signed?
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161 size <- sz
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162 }
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163 } none: {
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164 #{
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165 val <- expr val
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166 signed? <- expr signed?
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167 size <- sz
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168 }
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169 }
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170 }
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171 _compileSym <- :expr syms ilf assignTo {
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172 syms ifDefined: (expr name) :syminfo {
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173 if: (syminfo isLocal?) {
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174 syminfo def
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175 } else: {
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176 print: "Symbol " . (expr name) . " is not local and other types are not yet supported in LL dialect\n"
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177 }
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178 } else: {
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179 _compileError: "Symbol " . (expr name) . " is not defined in " . (ilf name)
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180 }
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181 }
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182 _compileIf <- :expr syms ilf assignTo {
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183 if: ((expr args) length) != 2 {
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184 _compileError: "if takes exactly 2 arguments" 0
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185 } else: {
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186 condArg <- (expr args) value
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187 blockArg <- ((expr args) tail) value
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188 cond <- _compileExpr: condArg syms: syms ilfun: ilf dest: (option none)
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189 _notError: [cond] {
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190 if: (blockArg nodeType) != (ast lambda) {
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191 _compileError: "second argument to if must be a lambda"
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192 } else: {
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193 ilf add: (il cmp: 0 (cond val) (cond size))
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194 dest <- if: (assignTo none?) {
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195 option value: #{
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196 val <- ilf reg
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197 //TODO: FIXME
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198 size <- il q
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199 signed? <- true
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200 }
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201 } else: {
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202 assignTo
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203 }
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204 ilf startBlock
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205 foreach: (blockArg expressions) :idx expr{
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206 asn <- if: idx = ((blockArg expressions) length) - 1 {
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207 dest
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208 } else: {
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209 option none
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210 }
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211 _compileExpr: expr syms: syms ilfun: ilf dest: asn
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212 }
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213 block <- ilf popBlock
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214 ilf add: (il skipIf: (il neq) block)
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215 dest value: :d { d } none: { _compileError: "Something went wrong" }
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216 }
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217 }
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218 }
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219 }
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220 _compileIfElse <- :expr syms ilf assignTo {
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221 if: ((expr args) length) != 3 {
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222 _compileError: "if:else takes exactly 3 arguments" 0
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223 } else: {
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224 condArg <- (expr args) value
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225 blockArg <- ((expr args) tail) value
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226 elseArg <- (((expr args) tail) tail) value
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227 cond <- _compileExpr: condArg syms: syms ilfun: ilf dest: (option none)
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228 _notError: [cond] {
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229 if: (blockArg nodeType) != (ast lambda) {
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230 _compileError: "second argument to if:else must be a lambda"
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231 } else: {
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232 if: (elseArg nodeType) != (ast lambda) {
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233 _compileError: "third argument to if:else must be a lambda"
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234 } else: {
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235 ilf add: (il cmp: 0 (cond val) (cond size))
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236 dest <- if: (assignTo none?) {
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237 option value: #{
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238 val <- ilf reg
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239 //TODO: FIXME
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240 size <- il q
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241 signed? <- true
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242 }
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243 } else: {
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244 assignTo
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245 }
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246 ilf startBlock
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247 foreach: (blockArg expressions) :idx expr {
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248 asn <- if: idx = ((blockArg expressions) length) - 1 {
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249 dest
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250 } else: {
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251 option none
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252 }
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253 _compileExpr: expr syms: syms ilfun: ilf dest: asn
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254 }
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255 block <- ilf popBlock
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256 ilf startBlock
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257 foreach: (elseArg expressions) :idx expr {
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258 asn <- if: idx = ((elseArg expressions) length) - 1 {
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259 dest
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260 } else: {
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261 option none
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262 }
315
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263 _compileExpr: expr syms: syms ilfun: ilf dest: (option none)
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264 }
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265 elseblock <- ilf popBlock
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266 ilf add: (il skipIf: (il neq) block else: elseblock)
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267 dest value: :d { d } none: { _compileError: "Something went wrong" }
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268 }
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269 }
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270 }
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271 }
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272 }
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273 _funMap <- false
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274 _compileCall <- :expr syms ilf assignTo {
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275 if: ((expr tocall) nodeType) = (ast sym) && (_funMap contains?: ((expr tocall) name)) {
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276 handler <- _funMap get: ((expr tocall) name) else: { false }
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277 handler: expr syms ilf assignTo
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278 } else: {
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279 ctocall <- if: ((expr tocall) nodeType) = (ast sym) {
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280 ctocall <- (expr tocall) name
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281 } else: {
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282 _compileExpr: (expr tocall) syms: syms ilfun: ilf dest: (option none)
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283 }
315
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284 cargs <- (expr args) map: :arg {
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285 _compileExpr: arg syms: syms ilfun: ilf dest: (option none)
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286 }
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287 _notError: ctocall | cargs {
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288 ilf add: (il call: ctocall withArgs: (cargs map: :arg { arg val } ))
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289
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290 retval <- assignTo value: :asn {
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291 ilf add: (il mov: (il retr) (asn val) (asn size))
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292 asn
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293 } none: {
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294 #{
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295 val <- il retr
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296 //TODO: Use correct values based on return type
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297 size <- il q
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298 signed? <- true
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299 }
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300 }
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301 retval
315
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302 }
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303 }
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304 }
310
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305
315
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306 _compileAssign <- :expr syms ilf assignTo {
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307 dest <- _compileExpr: (expr to) syms: syms ilfun: ilf dest: (option none)
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308 _notError: [dest] {
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309 value <- _compileExpr: (expr assign) syms: syms ilfun: ilf dest: dest
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310 _notError: [value] {
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311 //TODO: adjust size of value if necessary
352
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312 //ilf add: (il mov: (value val) (dest val) (dest size))
315
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313 value
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314 }
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315 }
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316 }
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317
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318 _initDone? <- false
310
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319 #{
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320 import: [
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321 binary
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322 stringlit
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323 intlit
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324 sym
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325 call
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326 obj
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327 sequence
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328 assignment
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329 lambda
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330 ] from: ast
315
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331 _initHandlers <- {
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332 if: (not: _initDone?) {
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333 _exprHandlers <- dict hash
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334 _exprHandlers set: binary _compileBinary
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335 _exprHandlers set: stringlit _compileString
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336 _exprHandlers set: intlit _compileInt
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337 _exprHandlers set: sym _compileSym
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338 _exprHandlers set: assignment _compileAssign
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339 _exprHandlers set: call _compileCall
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340
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341 _opMap <- dict hash
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342 mapOp <- macro: :op ilfun {
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343 quote: (_opMap set: op :ina inb out size {
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344 il ilfun: ina inb out size
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345 })
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346 }
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347 mapOp: "+" add
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348 mapOp: "-" sub
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349 mapOp: "*" mul
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350 mapOp: "/" div
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351 mapOp: "and" band
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352 mapOp: "or" bor
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353 mapOp: "xor" bxor
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354
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355 _compOps <- dict hash
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356 _compOps set: "=" :signed? { il eq }
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357 _compOps set: "!=" :signed? { il ne }
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358 _compOps set: ">" :signed? { if: signed? { il gr } else: { il ugr } }
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359 _compOps set: "<" :signed? { if: signed? { il ls } else: { il uls } }
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360 _compOps set: ">=" :signed? { if: signed? { il ge } else: { il uge } }
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361 _compOps set: "<=" :signed? { if: signed? { il le } else: { il ule } }
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362
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363 _funMap <- dict hash
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364 _funMap set: "if" _compileIf
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365 _funMap set: "if:else" _compileIfElse
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366 //_funMap set: "while:do" _compileWhileDo
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367 }
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368 }
310
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369
315
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370 llFun:syms:vars:code <- :name :syms :vars :code{
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371 _initHandlers:
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372 syms <- symbols tableWithParent: syms
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373 argnames <- dict hash
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374 foreach: (code args) :idx arg {
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375 if: (arg startsWith?: ":") {
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376 arg <- arg from: 1
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377 }
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378 argnames set: arg idx
315
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379 }
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380 ilf <- _ilFun: name
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381 _nextReg <- 0
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382 varErrors <- (vars expressions) fold: [] with: :acc var {
315
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383 type <- _parseType: (var assign)
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384 _notError: [type] {
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385 varname <- ((var to) name)
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386 v <- argnames ifget: varname :argnum {
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387 il arg: argnum
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388 } else: {
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389 ilf getReg
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390 }
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391 syms define: varname #{
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392 val <- v
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393 size <- (type size)
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394 signed? <- (type signed?)
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395 }
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396 acc
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397 } else: :err {
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398 err | acc
315
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399 }
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400 }
352
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401 if: (varErrors empty?) {
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402 last <- option none
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403 numexprs <- (code expressions) length
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404 foreach: (code expressions) :idx expr {
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405 asn <- if: idx = numexprs - 1 {
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406 option value: #{
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407 val <- ilf getReg
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408 //TODO: FIxme
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409 size <- il q
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410 signed? <- true
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411 }
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412 } else: {
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413 option none
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414 }
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415 last <- option value: (_compileExpr: expr syms: syms ilfun: ilf dest: asn)
315
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416 }
352
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417 last value: :v {
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418 ilf add: (il return: (v val) (v size))
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419 } none: {
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420 ilf add: (il return: 0 (il l))
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421 }
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422 ilf
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423 } else: {
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424 varErrors
315
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425 }
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426 }
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427
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428 compileText <- :text {
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429 res <- parser top: text
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430 if: res {
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431 tree <- res yield
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432 if: (tree nodeType) = obj {
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433 errors <- []
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434 syms <- symbols table
352
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435 functions <- (tree messages) fold: [] with: :curfuncs msg {
315
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436 if: (msg nodeType) = call {
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437 if: ((msg tocall) name) = "llFun:withVars:andCode" {
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438 if: ((msg args) length) = 3 {
352
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439 fname <- ((msg args) value) name
315
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440 syms define: fname #{
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441 type <- "topfun"
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442 }
352
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443 rest <- (msg args) tail
315
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444 #{
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445 name <- fname
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446 vars <- rest value
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447 body <- (rest tail) value
315
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448 } | curfuncs
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449 } else: {
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450 errors <- (
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451 _compileError: "llFun:withVars:andCode takes exactly 3 arguments" 0
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452 ) | errors
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453 curfuncs
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454 }
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455 } else: {
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456 errors <- (
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457 _compileError: "Only llFun:withVars:andCode expressions are allowed in top level object" 0
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458 ) | errors
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459 curfuncs
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460 }
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461 } else: {
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462 errors <- (
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463 _compileError: "Only call expresions are allowed in top level object" 0
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464 ) | errors
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465 curfuncs
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466 }
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467 }
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468 if: (errors empty?) {
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469 errors <- []
315
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470 fmap <- functions fold: (dict hash) with: :acc func {
352
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471 ilf <- llFun: (func name) syms: syms vars: (func vars) code: (func body)
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472 _notError: ilf {
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473 acc set: (func name) (ilf buffer)
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474 } else: {
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475 errors <- ilf . errors
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476 }
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477 acc
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478 }
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479 if: (errors empty?) {
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480 foreach: fmap :name instarr {
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481 print: "Function: " . name . "\n"
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482 foreach: instarr :_ inst {
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483 print: "\t" . inst . "\n"
315
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484 }
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485 }
352
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486 print: "Translating IL to x86\n"
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487 il toBackend: fmap x86
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488 } else: {
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489 errors
315
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490 }
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491 } else: {
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492 errors
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493 }
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494 } else: {
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495 [(_compileError: "Top level must be an object in llcompile dialect" 1)]
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496 }
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497 } else: {
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498 [(_compileError: "Failed to parse file" 0)]
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499 }
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500 }
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501
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502 main <- :args {
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503 if: (length: args) > 1 {
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504 text <- (file open: (args get: 1)) readAll
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505 mcode <- compileText: text
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506 _notError: mcode {
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507 ba <- bytearray executableFromBytes: mcode
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508 arg <- if: (length: args) > 2 { int32: (args get: 2) } else: {0}
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509 ba runWithArg: (arg i64)
352
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510 } else: :err {
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511 (file stderr) write: (err msg) . "\n"
315
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512 }
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513 } else: {
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514 (file stderr) write: "Usage: llcompile FILE\n"
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515 1
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516 }
310
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517 }
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518 }
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519 }