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210
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1 import ir, target
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2 from ppci import CompilerError
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3
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4 class CodeGenerator:
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5 """ Target independent code generator """
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6 def __init__(self, tg):
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7 assert isinstance(tg, target.Target)
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8 self.tg = tg
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9
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10 def tryMap(self, ii):
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11 for mi in self.tg.instructions:
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12 if mi.irpattern is ii:
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13 return mi.FromIr(ii)
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14 raise CompilerError('Cannot map {0}'.format(ii))
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15
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16 def generate(self, ircode):
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17 assert isinstance(ircode, ir.Module)
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18 obj = object()
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19 for gvar in ircode.Variables:
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20 print(gvar)
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21 print('TODO')
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22 for f in ircode.Functions:
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23 for bb in f.BasicBlocks:
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24 for ins in bb.Instructions:
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25 # Instruction selection:
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26 #mi = self.tryMap(ins)
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236
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27 pass
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210
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28 return obj
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29
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30
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