Mercurial > lcfOS

comparison python/ir/basicblock.py @ 174:3eb06f5fb987

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Added memory alloc for locals
author Windel Bouwman
date Fri, 19 Apr 2013 19:22:52 +0200
parents c1d2b6b9f9a7
children 460db5669efa
comparison
equal deleted inserted replaced
173:c1d2b6b9f9a7 174:3eb06f5fb987
1 1
2 class BasicBlock: 2 class BasicBlock:
3 # Uninterrupted sequence of instructions. 3 """ Uninterrupted sequence of instructions. """
4 def __init__(self, name): 4 def __init__(self, name):
5 self.name = name 5 self.name = name
6 self.instructions = [] 6 self.instructions = []
7 def __repr__(self): 7 def __repr__(self):
8 return 'BasicBlock {0}'.format(self.name) 8 return 'BasicBlock {0}'.format(self.name)
11 self.instructions.append(i) 11 self.instructions.append(i)
12 addIns = addInstruction 12 addIns = addInstruction
13 def replaceInstruction(self, i1, i2): 13 def replaceInstruction(self, i1, i2):
14 idx = self.instructions.index(i1) 14 idx = self.instructions.index(i1)
15 i1.parent = None 15 i1.parent = None
16 i1.delete()
16 i2.parent = self 17 i2.parent = self
17 self.instructions[idx] = i2 18 self.instructions[idx] = i2
18 def removeInstruction(self, i): 19 def removeInstruction(self, i):
19 i.parent = None 20 i.parent = None
20 self.instructions.remove(i) 21 self.instructions.remove(i)
21 def getInstructions(self): 22 def getInstructions(self):
22 return self.instructions 23 return self.instructions
23 Instructions = property(getInstructions) 24 def setInstructions(self, ins):
25 for i in self.instructions:
26 i.parent = None
27 self.instructions = ins
28 for i in self.instructions:
29 i.parent = self
30 Instructions = property(getInstructions, setInstructions)
24 def getLastIns(self): 31 def getLastIns(self):
25 return self.instructions[-1] 32 return self.instructions[-1]
26 LastIns = property(getLastIns) 33 LastInstruction = property(getLastIns)
27 @property 34 @property
28 def Empty(self): 35 def Empty(self):
29 return len(self.instructions) == 0 36 return len(self.instructions) == 0
30 @property 37 @property
31 def FirstInstruction(self): 38 def FirstInstruction(self):
32 return self.instructions[0] 39 return self.instructions[0]
33 FirstIns = FirstInstruction 40 FirstIns = FirstInstruction
34 def getSuccessors(self): 41 def getSuccessors(self):
35 if not self.Empty: 42 if not self.Empty:
36 i = self.LastIns 43 i = self.LastInstruction
37 return i.Targets 44 return i.Targets
38 return [] 45 return []
39 Successors = property(getSuccessors) 46 Successors = property(getSuccessors)
47 def getPredecessors(self):
48 return []
49 Predecessors = property(getPredecessors)
40 50