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< li class = "toctree-l1" > < a class = "reference internal" href = "../../api/Lib.Errors.html" > Base library - Errors< / a > < / li >
< li class = "toctree-l1" > < a class = "reference internal" href = "../../api/Lib.Statement.html" > Base library - Statement< / a > < / li >
< li class = "toctree-l1" > < a class = "reference internal" href = "../../api/Lib.RiscV.html" > Base library - RISC-V instructions< / a > < / li >
< li class = "toctree-l1" > < a class = "reference internal" href = "../../api/Lib.Operands.html" > Base library - Operands< / a > < / li >
< li class = "toctree-l1" > < a class = "reference internal" href = "../../api/Lib.FunctionData.html" > Base library - Function data< / a > < / li >
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< li class = "toctree-l1" > < a class = "reference internal" href = "../../api/Lib.Graphes.html" > Base library - Graphs< / a > < / li >
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< li class = "toctree-l1" > < a class = "reference internal" href = "../../api/Lib.LinearCode.html" > Linear intermediate representation< / a > < / li >
< li class = "toctree-l1" > < a class = "reference internal" href = "../../api/Lib.Allocator.html" > Temporary allocation< / a > < / li >
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< li class = "toctree-l1" > < a class = "reference internal" href = "../../api/Lib.CFG.html" > Control Flow Graph - CFG and Basic blocks< / a > < / li >
< li class = "toctree-l1" > < a class = "reference internal" href = "../../api/Lib.Terminator.html" > Control Flow Graph - Terminators< / a > < / li >
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< li class = "toctree-l1" > < a class = "reference internal" href = "../../api/Lib.Dominators.html" > SSA form - Dominance frontier< / a > < / li >
< li class = "toctree-l1" > < a class = "reference internal" href = "../../api/Lib.PhiNode.html" > SSA form - Phi Nodes< / a > < / li >
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< h1 > Source code for Lib.Operands< / h1 > < div class = "highlight" > < pre >
< span > < / span > < span class = "sd" > " " " < / span >
< span class = "sd" > This file defines the base class :py:class:`Operand`< / span >
< span class = "sd" > and its subclasses for different operands: :py:class:`Condition`,< / span >
< span class = "sd" > :py:class:`DataLocation` and :py:class:`Function`.< / span >
< span class = "sd" > The class :py:class:`DataLocation` itself has subclasses:< / span >
< span class = "sd" > :py:class:`Register`, :py:class:`Offset` for address in memory,< / span >
< span class = "sd" > :py:class:`Immediate` for constants and :py:class:`Temporary`< / span >
< span class = "sd" > for location not yet allocated.< / span >
< span class = "sd" > This file also define shortcuts for registers in RISCV.< / span >
< span class = "sd" > " " " < / span >
< span class = "kn" > from< / span > < span class = "nn" > typing< / span > < span class = "kn" > import< / span > < span class = "n" > Dict< / span > < span class = "p" > ,< / span > < span class = "n" > List< / span >
< span class = "kn" > from< / span > < span class = "nn" > MiniCParser< / span > < span class = "kn" > import< / span > < span class = "n" > MiniCParser< / span >
< span class = "kn" > from< / span > < span class = "nn" > Lib.Errors< / span > < span class = "kn" > import< / span > < span class = "n" > MiniCInternalError< / span >
< div class = "viewcode-block" id = "Operand" > < a class = "viewcode-back" href = "../../api/Lib.Operands.html#Lib.Operands.Operand" > [docs]< / a > < span class = "k" > class< / span > < span class = "nc" > Operand< / span > < span class = "p" > ():< / span >
< span class = "k" > pass< / span > < / div >
< span class = "c1" > # signed version for riscv< / span >
< span class = "n" > all_ops< / span > < span class = "o" > =< / span > < span class = "p" > [< / span > < span class = "s1" > ' blt' < / span > < span class = "p" > ,< / span > < span class = "s1" > ' bgt' < / span > < span class = "p" > ,< / span > < span class = "s1" > ' beq' < / span > < span class = "p" > ,< / span > < span class = "s1" > ' bne' < / span > < span class = "p" > ,< / span > < span class = "s1" > ' ble' < / span > < span class = "p" > ,< / span > < span class = "s1" > ' bge' < / span > < span class = "p" > ,< / span > < span class = "s1" > ' beqz' < / span > < span class = "p" > ,< / span > < span class = "s1" > ' bnez' < / span > < span class = "p" > ]< / span >
< span class = "n" > opdict< / span > < span class = "o" > =< / span > < span class = "p" > {< / span > < span class = "n" > MiniCParser< / span > < span class = "o" > .< / span > < span class = "n" > LT< / span > < span class = "p" > :< / span > < span class = "s1" > ' blt' < / span > < span class = "p" > ,< / span > < span class = "n" > MiniCParser< / span > < span class = "o" > .< / span > < span class = "n" > GT< / span > < span class = "p" > :< / span > < span class = "s1" > ' bgt' < / span > < span class = "p" > ,< / span >
< span class = "n" > MiniCParser< / span > < span class = "o" > .< / span > < span class = "n" > LTEQ< / span > < span class = "p" > :< / span > < span class = "s1" > ' ble' < / span > < span class = "p" > ,< / span > < span class = "n" > MiniCParser< / span > < span class = "o" > .< / span > < span class = "n" > GTEQ< / span > < span class = "p" > :< / span > < span class = "s1" > ' bge' < / span > < span class = "p" > ,< / span >
< span class = "n" > MiniCParser< / span > < span class = "o" > .< / span > < span class = "n" > NEQ< / span > < span class = "p" > :< / span > < span class = "s1" > ' bne' < / span > < span class = "p" > ,< / span > < span class = "n" > MiniCParser< / span > < span class = "o" > .< / span > < span class = "n" > EQ< / span > < span class = "p" > :< / span > < span class = "s1" > ' beq' < / span > < span class = "p" > }< / span >
< span class = "n" > opnot_dict< / span > < span class = "o" > =< / span > < span class = "p" > {< / span > < span class = "s1" > ' bgt' < / span > < span class = "p" > :< / span > < span class = "s1" > ' ble' < / span > < span class = "p" > ,< / span >
< span class = "s1" > ' bge' < / span > < span class = "p" > :< / span > < span class = "s1" > ' blt' < / span > < span class = "p" > ,< / span >
< span class = "s1" > ' blt' < / span > < span class = "p" > :< / span > < span class = "s1" > ' bge' < / span > < span class = "p" > ,< / span >
< span class = "s1" > ' ble' < / span > < span class = "p" > :< / span > < span class = "s1" > ' bgt' < / span > < span class = "p" > ,< / span >
< span class = "s1" > ' beq' < / span > < span class = "p" > :< / span > < span class = "s1" > ' bne' < / span > < span class = "p" > ,< / span >
< span class = "s1" > ' bne' < / span > < span class = "p" > :< / span > < span class = "s1" > ' beq' < / span > < span class = "p" > ,< / span >
< span class = "s1" > ' beqz' < / span > < span class = "p" > :< / span > < span class = "s1" > ' bnez' < / span > < span class = "p" > ,< / span >
< span class = "s1" > ' bnez' < / span > < span class = "p" > :< / span > < span class = "s1" > ' beqz' < / span > < span class = "p" > }< / span >
< div class = "viewcode-block" id = "Condition" > < a class = "viewcode-back" href = "../../api/Lib.Operands.html#Lib.Operands.Condition" > [docs]< / a > < span class = "k" > class< / span > < span class = "nc" > Condition< / span > < span class = "p" > (< / span > < span class = "n" > Operand< / span > < span class = "p" > ):< / span >
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< span class = "sd" > " " " Condition, i.e. comparison operand for a CondJump.< / span >
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< span class = "sd" > Example usage :< / span >
< span class = "sd" > - Condition(' beq' ) = branch if equal.< / span >
< span class = "sd" > - Condition(MiniCParser.LT) = branch if lower than.< / span >
< span class = "sd" > - ...< / span >
< span class = "sd" > The constructor' s argument shall be a string in the list all_ops, or a< / span >
< span class = "sd" > comparison operator in MiniCParser.LT, MiniCParser.GT, ... (one of the keys< / span >
< span class = "sd" > in opdict).< / span >
< span class = "sd" > A ' negate' method allows getting the negation of this condition.< / span >
< span class = "sd" > " " " < / span >
< span class = "n" > _op< / span > < span class = "p" > :< / span > < span class = "nb" > str< / span >
< span class = "k" > def< / span > < span class = "fm" > __init__< / span > < span class = "p" > (< / span > < span class = "bp" > self< / span > < span class = "p" > ,< / span > < span class = "n" > optype< / span > < span class = "p" > ):< / span >
< span class = "k" > if< / span > < span class = "n" > optype< / span > < span class = "ow" > in< / span > < span class = "n" > opdict< / span > < span class = "p" > :< / span >
< span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > _op< / span > < span class = "o" > =< / span > < span class = "n" > opdict< / span > < span class = "p" > [< / span > < span class = "n" > optype< / span > < span class = "p" > ]< / span >
< span class = "k" > elif< / span > < span class = "nb" > str< / span > < span class = "p" > (< / span > < span class = "n" > optype< / span > < span class = "p" > )< / span > < span class = "ow" > in< / span > < span class = "n" > all_ops< / span > < span class = "p" > :< / span >
< span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > _op< / span > < span class = "o" > =< / span > < span class = "nb" > str< / span > < span class = "p" > (< / span > < span class = "n" > optype< / span > < span class = "p" > )< / span >
< span class = "k" > else< / span > < span class = "p" > :< / span >
< span class = "k" > raise< / span > < span class = "n" > MiniCInternalError< / span > < span class = "p" > (< / span > < span class = "sa" > f< / span > < span class = "s2" > " Unsupported comparison operator < / span > < span class = "si" > {< / span > < span class = "n" > optype< / span > < span class = "si" > }< / span > < span class = "s2" > " < / span > < span class = "p" > )< / span >
< div class = "viewcode-block" id = "Condition.negate" > < a class = "viewcode-back" href = "../../api/Lib.Operands.html#Lib.Operands.Condition.negate" > [docs]< / a > < span class = "k" > def< / span > < span class = "nf" > negate< / span > < span class = "p" > (< / span > < span class = "bp" > self< / span > < span class = "p" > )< / span > < span class = "o" > -> < / span > < span class = "s1" > ' Condition' < / span > < span class = "p" > :< / span >
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< span class = "sd" > " " " Return the opposite condition." " " < / span >
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< span class = "k" > return< / span > < span class = "n" > Condition< / span > < span class = "p" > (< / span > < span class = "n" > opnot_dict< / span > < span class = "p" > [< / span > < span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > _op< / span > < span class = "p" > ])< / span > < / div >
< span class = "k" > def< / span > < span class = "fm" > __str__< / span > < span class = "p" > (< / span > < span class = "bp" > self< / span > < span class = "p" > ):< / span >
< span class = "k" > return< / span > < span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > _op< / span > < / div >
< div class = "viewcode-block" id = "Function" > < a class = "viewcode-back" href = "../../api/Lib.Operands.html#Lib.Operands.Function" > [docs]< / a > < span class = "k" > class< / span > < span class = "nc" > Function< / span > < span class = "p" > (< / span > < span class = "n" > Operand< / span > < span class = "p" > ):< / span >
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< span class = "sd" > " " " Operand for build-in function call." " " < / span >
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< span class = "n" > _name< / span > < span class = "p" > :< / span > < span class = "nb" > str< / span >
< span class = "k" > def< / span > < span class = "fm" > __init__< / span > < span class = "p" > (< / span > < span class = "bp" > self< / span > < span class = "p" > ,< / span > < span class = "n" > name< / span > < span class = "p" > :< / span > < span class = "nb" > str< / span > < span class = "p" > ):< / span >
< span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > _name< / span > < span class = "o" > =< / span > < span class = "n" > name< / span >
< span class = "k" > def< / span > < span class = "fm" > __str__< / span > < span class = "p" > (< / span > < span class = "bp" > self< / span > < span class = "p" > ):< / span >
< span class = "k" > return< / span > < span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > _name< / span > < / div >
< div class = "viewcode-block" id = "DataLocation" > < a class = "viewcode-back" href = "../../api/Lib.Operands.html#Lib.Operands.DataLocation" > [docs]< / a > < span class = "k" > class< / span > < span class = "nc" > DataLocation< / span > < span class = "p" > (< / span > < span class = "n" > Operand< / span > < span class = "p" > ):< / span >
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< span class = "sd" > " " " A Data Location is either a register, a temporary< / span >
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< span class = "sd" > or a place in memory (offset).< / span >
< span class = "sd" > " " " < / span >
< span class = "k" > pass< / span > < / div >
< span class = "c1" > # map for register shortcuts< / span >
< span class = "n" > reg_map< / span > < span class = "o" > =< / span > < span class = "nb" > dict< / span > < span class = "p" > ([(< / span > < span class = "mi" > 0< / span > < span class = "p" > ,< / span > < span class = "s1" > ' zero' < / span > < span class = "p" > ),< / span > < span class = "p" > (< / span > < span class = "mi" > 1< / span > < span class = "p" > ,< / span > < span class = "s1" > ' ra' < / span > < span class = "p" > ),< / span > < span class = "p" > (< / span > < span class = "mi" > 2< / span > < span class = "p" > ,< / span > < span class = "s1" > ' sp' < / span > < span class = "p" > )]< / span > < span class = "o" > +< / span > < span class = "c1" > # no (3, ' gp' ) nor (4, ' tp' )< / span >
< span class = "p" > [(< / span > < span class = "n" > i< / span > < span class = "o" > +< / span > < span class = "mi" > 5< / span > < span class = "p" > ,< / span > < span class = "s1" > ' t' < / span > < span class = "o" > +< / span > < span class = "nb" > str< / span > < span class = "p" > (< / span > < span class = "n" > i< / span > < span class = "p" > ))< / span > < span class = "k" > for< / span > < span class = "n" > i< / span > < span class = "ow" > in< / span > < span class = "nb" > range< / span > < span class = "p" > (< / span > < span class = "mi" > 3< / span > < span class = "p" > )]< / span > < span class = "o" > +< / span >
< span class = "p" > [(< / span > < span class = "mi" > 8< / span > < span class = "p" > ,< / span > < span class = "s1" > ' fp' < / span > < span class = "p" > ),< / span > < span class = "p" > (< / span > < span class = "mi" > 9< / span > < span class = "p" > ,< / span > < span class = "s1" > ' s1' < / span > < span class = "p" > )]< / span > < span class = "o" > +< / span >
< span class = "p" > [(< / span > < span class = "n" > i< / span > < span class = "o" > +< / span > < span class = "mi" > 10< / span > < span class = "p" > ,< / span > < span class = "s1" > ' a' < / span > < span class = "o" > +< / span > < span class = "nb" > str< / span > < span class = "p" > (< / span > < span class = "n" > i< / span > < span class = "p" > ))< / span > < span class = "k" > for< / span > < span class = "n" > i< / span > < span class = "ow" > in< / span > < span class = "nb" > range< / span > < span class = "p" > (< / span > < span class = "mi" > 8< / span > < span class = "p" > )]< / span > < span class = "o" > +< / span >
< span class = "p" > [(< / span > < span class = "n" > i< / span > < span class = "o" > +< / span > < span class = "mi" > 18< / span > < span class = "p" > ,< / span > < span class = "s1" > ' s' < / span > < span class = "o" > +< / span > < span class = "nb" > str< / span > < span class = "p" > (< / span > < span class = "n" > i< / span > < span class = "o" > +< / span > < span class = "mi" > 2< / span > < span class = "p" > ))< / span > < span class = "k" > for< / span > < span class = "n" > i< / span > < span class = "ow" > in< / span > < span class = "nb" > range< / span > < span class = "p" > (< / span > < span class = "mi" > 10< / span > < span class = "p" > )]< / span > < span class = "o" > +< / span >
< span class = "p" > [(< / span > < span class = "n" > i< / span > < span class = "o" > +< / span > < span class = "mi" > 28< / span > < span class = "p" > ,< / span > < span class = "s1" > ' t' < / span > < span class = "o" > +< / span > < span class = "nb" > str< / span > < span class = "p" > (< / span > < span class = "n" > i< / span > < span class = "o" > +< / span > < span class = "mi" > 3< / span > < span class = "p" > ))< / span > < span class = "k" > for< / span > < span class = "n" > i< / span > < span class = "ow" > in< / span > < span class = "nb" > range< / span > < span class = "p" > (< / span > < span class = "mi" > 4< / span > < span class = "p" > )])< / span >
< div class = "viewcode-block" id = "Register" > < a class = "viewcode-back" href = "../../api/Lib.Operands.html#Lib.Operands.Register" > [docs]< / a > < span class = "k" > class< / span > < span class = "nc" > Register< / span > < span class = "p" > (< / span > < span class = "n" > DataLocation< / span > < span class = "p" > ):< / span >
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< span class = "sd" > " " " A (physical) register." " " < / span >
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< span class = "n" > _number< / span > < span class = "p" > :< / span > < span class = "nb" > int< / span >
< span class = "k" > def< / span > < span class = "fm" > __init__< / span > < span class = "p" > (< / span > < span class = "bp" > self< / span > < span class = "p" > ,< / span > < span class = "n" > number< / span > < span class = "p" > :< / span > < span class = "nb" > int< / span > < span class = "p" > ):< / span >
< span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > _number< / span > < span class = "o" > =< / span > < span class = "n" > number< / span >
< span class = "k" > def< / span > < span class = "fm" > __repr__< / span > < span class = "p" > (< / span > < span class = "bp" > self< / span > < span class = "p" > ):< / span >
< span class = "k" > if< / span > < span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > _number< / span > < span class = "ow" > not< / span > < span class = "ow" > in< / span > < span class = "n" > reg_map< / span > < span class = "p" > :< / span >
< span class = "k" > raise< / span > < span class = "n" > MiniCInternalError< / span > < span class = "p" > (< / span > < span class = "sa" > f< / span > < span class = "s2" > " Register number < / span > < span class = "si" > {< / span > < span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > _number< / span > < span class = "si" > }< / span > < span class = "s2" > should not be used" < / span > < span class = "p" > )< / span >
< span class = "k" > else< / span > < span class = "p" > :< / span >
< span class = "k" > return< / span > < span class = "p" > (< / span > < span class = "s2" > " < / span > < span class = "si" > {}< / span > < span class = "s2" > " < / span > < span class = "o" > .< / span > < span class = "n" > format< / span > < span class = "p" > (< / span > < span class = "n" > reg_map< / span > < span class = "p" > [< / span > < span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > _number< / span > < span class = "p" > ]))< / span >
< span class = "k" > def< / span > < span class = "fm" > __eq__< / span > < span class = "p" > (< / span > < span class = "bp" > self< / span > < span class = "p" > ,< / span > < span class = "n" > other< / span > < span class = "p" > ):< / span >
< span class = "k" > return< / span > < span class = "nb" > isinstance< / span > < span class = "p" > (< / span > < span class = "n" > other< / span > < span class = "p" > ,< / span > < span class = "n" > Register< / span > < span class = "p" > )< / span > < span class = "ow" > and< / span > < span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > _number< / span > < span class = "o" > ==< / span > < span class = "n" > other< / span > < span class = "o" > .< / span > < span class = "n" > _number< / span >
< span class = "k" > def< / span > < span class = "fm" > __hash__< / span > < span class = "p" > (< / span > < span class = "bp" > self< / span > < span class = "p" > ):< / span >
< span class = "k" > return< / span > < span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > _number< / span > < / div >
< span class = "c1" > # Shortcuts for registers in RISCV< / span >
< span class = "c1" > # Only integer registers< / span >
< span class = "c1" > #: Zero register< / span >
< span class = "n" > ZERO< / span > < span class = "o" > =< / span > < span class = "n" > Register< / span > < span class = "p" > (< / span > < span class = "mi" > 0< / span > < span class = "p" > )< / span >
< span class = "c1" > #:< / span >
< span class = "n" > RA< / span > < span class = "o" > =< / span > < span class = "n" > Register< / span > < span class = "p" > (< / span > < span class = "mi" > 1< / span > < span class = "p" > )< / span >
< span class = "c1" > #:< / span >
< span class = "n" > SP< / span > < span class = "o" > =< / span > < span class = "n" > Register< / span > < span class = "p" > (< / span > < span class = "mi" > 2< / span > < span class = "p" > )< / span >
< span class = "c1" > #: Register not used for this course< / span >
< span class = "n" > GP< / span > < span class = "o" > =< / span > < span class = "n" > Register< / span > < span class = "p" > (< / span > < span class = "mi" > 3< / span > < span class = "p" > )< / span >
< span class = "c1" > #: Register not used for this course< / span >
< span class = "n" > TP< / span > < span class = "o" > =< / span > < span class = "n" > Register< / span > < span class = "p" > (< / span > < span class = "mi" > 4< / span > < span class = "p" > )< / span >
< span class = "c1" > #:< / span >
< span class = "n" > A< / span > < span class = "o" > =< / span > < span class = "nb" > tuple< / span > < span class = "p" > (< / span > < span class = "n" > Register< / span > < span class = "p" > (< / span > < span class = "n" > i< / span > < span class = "o" > +< / span > < span class = "mi" > 10< / span > < span class = "p" > )< / span > < span class = "k" > for< / span > < span class = "n" > i< / span > < span class = "ow" > in< / span > < span class = "nb" > range< / span > < span class = "p" > (< / span > < span class = "mi" > 8< / span > < span class = "p" > ))< / span >
< span class = "c1" > #:< / span >
< span class = "n" > S< / span > < span class = "o" > =< / span > < span class = "nb" > tuple< / span > < span class = "p" > (< / span > < span class = "n" > Register< / span > < span class = "p" > (< / span > < span class = "n" > i< / span > < span class = "o" > +< / span > < span class = "mi" > 8< / span > < span class = "p" > )< / span > < span class = "k" > for< / span > < span class = "n" > i< / span > < span class = "ow" > in< / span > < span class = "nb" > range< / span > < span class = "p" > (< / span > < span class = "mi" > 2< / span > < span class = "p" > ))< / span > < span class = "o" > +< / span > < span class = "nb" > tuple< / span > < span class = "p" > (< / span > < span class = "n" > Register< / span > < span class = "p" > (< / span > < span class = "n" > i< / span > < span class = "o" > +< / span > < span class = "mi" > 18< / span > < span class = "p" > )< / span > < span class = "k" > for< / span > < span class = "n" > i< / span > < span class = "ow" > in< / span > < span class = "nb" > range< / span > < span class = "p" > (< / span > < span class = "mi" > 10< / span > < span class = "p" > ))< / span >
< span class = "c1" > #:< / span >
< span class = "n" > T< / span > < span class = "o" > =< / span > < span class = "nb" > tuple< / span > < span class = "p" > (< / span > < span class = "n" > Register< / span > < span class = "p" > (< / span > < span class = "n" > i< / span > < span class = "o" > +< / span > < span class = "mi" > 5< / span > < span class = "p" > )< / span > < span class = "k" > for< / span > < span class = "n" > i< / span > < span class = "ow" > in< / span > < span class = "nb" > range< / span > < span class = "p" > (< / span > < span class = "mi" > 3< / span > < span class = "p" > ))< / span > < span class = "o" > +< / span > < span class = "nb" > tuple< / span > < span class = "p" > (< / span > < span class = "n" > Register< / span > < span class = "p" > (< / span > < span class = "n" > i< / span > < span class = "o" > +< / span > < span class = "mi" > 28< / span > < span class = "p" > )< / span > < span class = "k" > for< / span > < span class = "n" > i< / span > < span class = "ow" > in< / span > < span class = "nb" > range< / span > < span class = "p" > (< / span > < span class = "mi" > 4< / span > < span class = "p" > ))< / span >
< span class = "c1" > #:< / span >
< span class = "n" > A0< / span > < span class = "o" > =< / span > < span class = "n" > A< / span > < span class = "p" > [< / span > < span class = "mi" > 0< / span > < span class = "p" > ]< / span > < span class = "c1" > # function args/return Values: A0, A1< / span >
< span class = "c1" > #:< / span >
< span class = "n" > A1< / span > < span class = "o" > =< / span > < span class = "n" > A< / span > < span class = "p" > [< / span > < span class = "mi" > 1< / span > < span class = "p" > ]< / span >
< span class = "c1" > #: Frame Pointer = Saved register 0< / span >
< span class = "n" > FP< / span > < span class = "o" > =< / span > < span class = "n" > S< / span > < span class = "p" > [< / span > < span class = "mi" > 0< / span > < span class = "p" > ]< / span >
< span class = "c1" > #: General purpose registers, usable for the allocator< / span >
< span class = "n" > GP_REGS< / span > < span class = "o" > =< / span > < span class = "n" > S< / span > < span class = "p" > [< / span > < span class = "mi" > 4< / span > < span class = "p" > :]< / span > < span class = "o" > +< / span > < span class = "n" > T< / span > < span class = "c1" > # s0, s1, s2 and s3 are special< / span >
< div class = "viewcode-block" id = "Offset" > < a class = "viewcode-back" href = "../../api/Lib.Operands.html#Lib.Operands.Offset" > [docs]< / a > < span class = "k" > class< / span > < span class = "nc" > Offset< / span > < span class = "p" > (< / span > < span class = "n" > DataLocation< / span > < span class = "p" > ):< / span >
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< span class = "sd" > " " " Offset = address in memory computed with base + offset." " " < / span >
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< span class = "n" > _basereg< / span > < span class = "p" > :< / span > < span class = "n" > Register< / span >
< span class = "n" > _offset< / span > < span class = "p" > :< / span > < span class = "nb" > int< / span >
< span class = "k" > def< / span > < span class = "fm" > __init__< / span > < span class = "p" > (< / span > < span class = "bp" > self< / span > < span class = "p" > ,< / span > < span class = "n" > basereg< / span > < span class = "p" > :< / span > < span class = "n" > Register< / span > < span class = "p" > ,< / span > < span class = "n" > offset< / span > < span class = "p" > :< / span > < span class = "nb" > int< / span > < span class = "p" > ):< / span >
< span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > _basereg< / span > < span class = "o" > =< / span > < span class = "n" > basereg< / span >
< span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > _offset< / span > < span class = "o" > =< / span > < span class = "n" > offset< / span >
< span class = "k" > def< / span > < span class = "fm" > __repr__< / span > < span class = "p" > (< / span > < span class = "bp" > self< / span > < span class = "p" > ):< / span >
< span class = "k" > return< / span > < span class = "p" > (< / span > < span class = "s2" > " < / span > < span class = "si" > {}< / span > < span class = "s2" > (< / span > < span class = "si" > {}< / span > < span class = "s2" > )" < / span > < span class = "o" > .< / span > < span class = "n" > format< / span > < span class = "p" > (< / span > < span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > _offset< / span > < span class = "p" > ,< / span > < span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > _basereg< / span > < span class = "p" > ))< / span >
< div class = "viewcode-block" id = "Offset.get_offset" > < a class = "viewcode-back" href = "../../api/Lib.Operands.html#Lib.Operands.Offset.get_offset" > [docs]< / a > < span class = "k" > def< / span > < span class = "nf" > get_offset< / span > < span class = "p" > (< / span > < span class = "bp" > self< / span > < span class = "p" > )< / span > < span class = "o" > -> < / span > < span class = "nb" > int< / span > < span class = "p" > :< / span >
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< span class = "sd" > " " " Return the value of the offset." " " < / span >
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< span class = "k" > return< / span > < span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > _offset< / span > < / div > < / div >
< div class = "viewcode-block" id = "Immediate" > < a class = "viewcode-back" href = "../../api/Lib.Operands.html#Lib.Operands.Immediate" > [docs]< / a > < span class = "k" > class< / span > < span class = "nc" > Immediate< / span > < span class = "p" > (< / span > < span class = "n" > DataLocation< / span > < span class = "p" > ):< / span >
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< span class = "sd" > " " " Immediate operand (integer)." " " < / span >
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< span class = "n" > _val< / span > < span class = "p" > :< / span > < span class = "nb" > int< / span >
< span class = "k" > def< / span > < span class = "fm" > __init__< / span > < span class = "p" > (< / span > < span class = "bp" > self< / span > < span class = "p" > ,< / span > < span class = "n" > val< / span > < span class = "p" > ):< / span >
< span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > _val< / span > < span class = "o" > =< / span > < span class = "n" > val< / span >
< span class = "k" > def< / span > < span class = "fm" > __str__< / span > < span class = "p" > (< / span > < span class = "bp" > self< / span > < span class = "p" > ):< / span >
< span class = "k" > return< / span > < span class = "nb" > str< / span > < span class = "p" > (< / span > < span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > _val< / span > < span class = "p" > )< / span > < / div >
< div class = "viewcode-block" id = "Temporary" > < a class = "viewcode-back" href = "../../api/Lib.Operands.html#Lib.Operands.Temporary" > [docs]< / a > < span class = "k" > class< / span > < span class = "nc" > Temporary< / span > < span class = "p" > (< / span > < span class = "n" > DataLocation< / span > < span class = "p" > ):< / span >
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< span class = "sd" > " " " Temporary, a location that has not been allocated yet.< / span >
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< span class = "sd" > It will later be mapped to a physical register (Register) or to a memory location (Offset).< / span >
< span class = "sd" > " " " < / span >
< span class = "n" > _number< / span > < span class = "p" > :< / span > < span class = "nb" > int< / span >
< span class = "n" > _pool< / span > < span class = "p" > :< / span > < span class = "s1" > ' TemporaryPool' < / span >
< span class = "k" > def< / span > < span class = "fm" > __init__< / span > < span class = "p" > (< / span > < span class = "bp" > self< / span > < span class = "p" > ,< / span > < span class = "n" > number< / span > < span class = "p" > :< / span > < span class = "nb" > int< / span > < span class = "p" > ,< / span > < span class = "n" > pool< / span > < span class = "p" > :< / span > < span class = "s1" > ' TemporaryPool' < / span > < span class = "p" > ):< / span >
< span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > _number< / span > < span class = "o" > =< / span > < span class = "n" > number< / span >
< span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > _pool< / span > < span class = "o" > =< / span > < span class = "n" > pool< / span >
< span class = "k" > def< / span > < span class = "fm" > __repr__< / span > < span class = "p" > (< / span > < span class = "bp" > self< / span > < span class = "p" > ):< / span >
< span class = "k" > return< / span > < span class = "p" > (< / span > < span class = "s2" > " temp_< / span > < span class = "si" > {}< / span > < span class = "s2" > " < / span > < span class = "o" > .< / span > < span class = "n" > format< / span > < span class = "p" > (< / span > < span class = "nb" > str< / span > < span class = "p" > (< / span > < span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > _number< / span > < span class = "p" > )))< / span >
< div class = "viewcode-block" id = "Temporary.get_alloced_loc" > < a class = "viewcode-back" href = "../../api/Lib.Operands.html#Lib.Operands.Temporary.get_alloced_loc" > [docs]< / a > < span class = "k" > def< / span > < span class = "nf" > get_alloced_loc< / span > < span class = "p" > (< / span > < span class = "bp" > self< / span > < span class = "p" > )< / span > < span class = "o" > -> < / span > < span class = "n" > DataLocation< / span > < span class = "p" > :< / span >
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< span class = "sd" > " " " Return the DataLocation allocated to this Temporary." " " < / span >
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< span class = "k" > return< / span > < span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > _pool< / span > < span class = "o" > .< / span > < span class = "n" > get_alloced_loc< / span > < span class = "p" > (< / span > < span class = "bp" > self< / span > < span class = "p" > )< / span > < / div > < / div >
< div class = "viewcode-block" id = "TemporaryPool" > < a class = "viewcode-back" href = "../../api/Lib.Operands.html#Lib.Operands.TemporaryPool" > [docs]< / a > < span class = "k" > class< / span > < span class = "nc" > TemporaryPool< / span > < span class = "p" > :< / span >
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< span class = "sd" > " " " Manage a pool of temporaries." " " < / span >
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< span class = "n" > _all_temps< / span > < span class = "p" > :< / span > < span class = "n" > List< / span > < span class = "p" > [< / span > < span class = "n" > Temporary< / span > < span class = "p" > ]< / span >
< span class = "n" > _current_num< / span > < span class = "p" > :< / span > < span class = "nb" > int< / span >
< span class = "n" > _allocation< / span > < span class = "p" > :< / span > < span class = "n" > Dict< / span > < span class = "p" > [< / span > < span class = "n" > Temporary< / span > < span class = "p" > ,< / span > < span class = "n" > DataLocation< / span > < span class = "p" > ]< / span >
< span class = "k" > def< / span > < span class = "fm" > __init__< / span > < span class = "p" > (< / span > < span class = "bp" > self< / span > < span class = "p" > ):< / span >
< span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > _all_temps< / span > < span class = "o" > =< / span > < span class = "p" > []< / span >
< span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > _current_num< / span > < span class = "o" > =< / span > < span class = "mi" > 0< / span >
< span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > _allocation< / span > < span class = "o" > =< / span > < span class = "nb" > dict< / span > < span class = "p" > ()< / span >
< div class = "viewcode-block" id = "TemporaryPool.get_all_temps" > < a class = "viewcode-back" href = "../../api/Lib.Operands.html#Lib.Operands.TemporaryPool.get_all_temps" > [docs]< / a > < span class = "k" > def< / span > < span class = "nf" > get_all_temps< / span > < span class = "p" > (< / span > < span class = "bp" > self< / span > < span class = "p" > )< / span > < span class = "o" > -> < / span > < span class = "n" > List< / span > < span class = "p" > [< / span > < span class = "n" > Temporary< / span > < span class = "p" > ]:< / span >
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< span class = "sd" > " " " Return all the temporaries of the pool." " " < / span >
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< span class = "k" > return< / span > < span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > _all_temps< / span > < / div >
< div class = "viewcode-block" id = "TemporaryPool.get_alloced_loc" > < a class = "viewcode-back" href = "../../api/Lib.Operands.html#Lib.Operands.TemporaryPool.get_alloced_loc" > [docs]< / a > < span class = "k" > def< / span > < span class = "nf" > get_alloced_loc< / span > < span class = "p" > (< / span > < span class = "bp" > self< / span > < span class = "p" > ,< / span > < span class = "n" > t< / span > < span class = "p" > :< / span > < span class = "n" > Temporary< / span > < span class = "p" > )< / span > < span class = "o" > -> < / span > < span class = "n" > DataLocation< / span > < span class = "p" > :< / span >
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< span class = "sd" > " " " Get the actual DataLocation allocated for the temporary t." " " < / span >
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< span class = "k" > return< / span > < span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > _allocation< / span > < span class = "p" > [< / span > < span class = "n" > t< / span > < span class = "p" > ]< / span > < / div >
< div class = "viewcode-block" id = "TemporaryPool.add_tmp" > < a class = "viewcode-back" href = "../../api/Lib.Operands.html#Lib.Operands.TemporaryPool.add_tmp" > [docs]< / a > < span class = "k" > def< / span > < span class = "nf" > add_tmp< / span > < span class = "p" > (< / span > < span class = "bp" > self< / span > < span class = "p" > ,< / span > < span class = "n" > t< / span > < span class = "p" > :< / span > < span class = "n" > Temporary< / span > < span class = "p" > ):< / span >
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< span class = "sd" > " " " Add a temporary to the pool." " " < / span >
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< span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > _all_temps< / span > < span class = "o" > .< / span > < span class = "n" > append< / span > < span class = "p" > (< / span > < span class = "n" > t< / span > < span class = "p" > )< / span >
< span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > _allocation< / span > < span class = "p" > [< / span > < span class = "n" > t< / span > < span class = "p" > ]< / span > < span class = "o" > =< / span > < span class = "n" > t< / span > < span class = "c1" > # While no allocation, return the temporary itself< / span > < / div >
< div class = "viewcode-block" id = "TemporaryPool.set_temp_allocation" > < a class = "viewcode-back" href = "../../api/Lib.Operands.html#Lib.Operands.TemporaryPool.set_temp_allocation" > [docs]< / a > < span class = "k" > def< / span > < span class = "nf" > set_temp_allocation< / span > < span class = "p" > (< / span > < span class = "bp" > self< / span > < span class = "p" > ,< / span > < span class = "n" > allocation< / span > < span class = "p" > :< / span > < span class = "n" > Dict< / span > < span class = "p" > [< / span > < span class = "n" > Temporary< / span > < span class = "p" > ,< / span > < span class = "n" > DataLocation< / span > < span class = "p" > ])< / span > < span class = "o" > -> < / span > < span class = "kc" > None< / span > < span class = "p" > :< / span >
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< span class = "sd" > " " " Give a mapping from temporaries to actual registers.< / span >
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< span class = "sd" > The argument allocation must be a dict from Temporary to< / span >
< span class = "sd" > DataLocation other than Temporary (typically Register or Offset).< / span >
< span class = "sd" > Typing enforces that keys are Temporary and values are Datalocation.< / span >
< span class = "sd" > We check the values are indeed not Temporary.< / span >
< span class = "sd" > " " " < / span >
< span class = "k" > for< / span > < span class = "n" > v< / span > < span class = "ow" > in< / span > < span class = "n" > allocation< / span > < span class = "o" > .< / span > < span class = "n" > values< / span > < span class = "p" > ():< / span >
< span class = "k" > assert< / span > < span class = "ow" > not< / span > < span class = "nb" > isinstance< / span > < span class = "p" > (< / span > < span class = "n" > v< / span > < span class = "p" > ,< / span > < span class = "n" > Temporary< / span > < span class = "p" > ),< / span > < span class = "p" > (< / span >
< span class = "s2" > " Incorrect allocation scheme: value " < / span > < span class = "o" > +< / span >
< span class = "nb" > str< / span > < span class = "p" > (< / span > < span class = "n" > v< / span > < span class = "p" > )< / span > < span class = "o" > +< / span > < span class = "s2" > " is a Temporary." < / span > < span class = "p" > )< / span >
< span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > _allocation< / span > < span class = "o" > =< / span > < span class = "n" > allocation< / span > < / div >
< div class = "viewcode-block" id = "TemporaryPool.fresh_tmp" > < a class = "viewcode-back" href = "../../api/Lib.Operands.html#Lib.Operands.TemporaryPool.fresh_tmp" > [docs]< / a > < span class = "k" > def< / span > < span class = "nf" > fresh_tmp< / span > < span class = "p" > (< / span > < span class = "bp" > self< / span > < span class = "p" > )< / span > < span class = "o" > -> < / span > < span class = "n" > Temporary< / span > < span class = "p" > :< / span >
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< span class = "sd" > " " " Give a new fresh Temporary and add it to the pool." " " < / span >
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< span class = "n" > t< / span > < span class = "o" > =< / span > < span class = "n" > Temporary< / span > < span class = "p" > (< / span > < span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > _current_num< / span > < span class = "p" > ,< / span > < span class = "bp" > self< / span > < span class = "p" > )< / span >
< span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > _current_num< / span > < span class = "o" > +=< / span > < span class = "mi" > 1< / span >
< span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > add_tmp< / span > < span class = "p" > (< / span > < span class = "n" > t< / span > < span class = "p" > )< / span >
< span class = "k" > return< / span > < span class = "n" > t< / span > < / div > < / div >
< div class = "viewcode-block" id = "Renamer" > < a class = "viewcode-back" href = "../../api/Lib.Operands.html#Lib.Operands.Renamer" > [docs]< / a > < span class = "k" > class< / span > < span class = "nc" > Renamer< / span > < span class = "p" > :< / span >
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< span class = "sd" > " " " Manage a renaming of temporaries." " " < / span >
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< span class = "n" > _pool< / span > < span class = "p" > :< / span > < span class = "n" > TemporaryPool< / span >
< span class = "n" > _env< / span > < span class = "p" > :< / span > < span class = "n" > Dict< / span > < span class = "p" > [< / span > < span class = "n" > Temporary< / span > < span class = "p" > ,< / span > < span class = "n" > Temporary< / span > < span class = "p" > ]< / span >
< span class = "k" > def< / span > < span class = "fm" > __init__< / span > < span class = "p" > (< / span > < span class = "bp" > self< / span > < span class = "p" > ,< / span > < span class = "n" > pool< / span > < span class = "p" > :< / span > < span class = "n" > TemporaryPool< / span > < span class = "p" > ):< / span >
< span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > _pool< / span > < span class = "o" > =< / span > < span class = "n" > pool< / span >
< span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > _env< / span > < span class = "o" > =< / span > < span class = "nb" > dict< / span > < span class = "p" > ()< / span >
< div class = "viewcode-block" id = "Renamer.fresh" > < a class = "viewcode-back" href = "../../api/Lib.Operands.html#Lib.Operands.Renamer.fresh" > [docs]< / a > < span class = "k" > def< / span > < span class = "nf" > fresh< / span > < span class = "p" > (< / span > < span class = "bp" > self< / span > < span class = "p" > ,< / span > < span class = "n" > t< / span > < span class = "p" > :< / span > < span class = "n" > Temporary< / span > < span class = "p" > )< / span > < span class = "o" > -> < / span > < span class = "n" > Temporary< / span > < span class = "p" > :< / span >
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< span class = "sd" > " " " Give a fresh rename for a Temporary." " " < / span >
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< span class = "n" > new_t< / span > < span class = "o" > =< / span > < span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > _pool< / span > < span class = "o" > .< / span > < span class = "n" > fresh_tmp< / span > < span class = "p" > ()< / span >
< span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > _env< / span > < span class = "p" > [< / span > < span class = "n" > t< / span > < span class = "p" > ]< / span > < span class = "o" > =< / span > < span class = "n" > new_t< / span >
< span class = "k" > return< / span > < span class = "n" > new_t< / span > < / div >
< div class = "viewcode-block" id = "Renamer.replace" > < a class = "viewcode-back" href = "../../api/Lib.Operands.html#Lib.Operands.Renamer.replace" > [docs]< / a > < span class = "k" > def< / span > < span class = "nf" > replace< / span > < span class = "p" > (< / span > < span class = "bp" > self< / span > < span class = "p" > ,< / span > < span class = "n" > t< / span > < span class = "p" > :< / span > < span class = "n" > Temporary< / span > < span class = "p" > )< / span > < span class = "o" > -> < / span > < span class = "n" > Temporary< / span > < span class = "p" > :< / span >
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< span class = "sd" > " " " Give the rename for a Temporary (which is itself if it is not renamed)." " " < / span >
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< span class = "k" > return< / span > < span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > _env< / span > < span class = "o" > .< / span > < span class = "n" > get< / span > < span class = "p" > (< / span > < span class = "n" > t< / span > < span class = "p" > ,< / span > < span class = "n" > t< / span > < span class = "p" > )< / span > < / div >
< div class = "viewcode-block" id = "Renamer.defined" > < a class = "viewcode-back" href = "../../api/Lib.Operands.html#Lib.Operands.Renamer.defined" > [docs]< / a > < span class = "k" > def< / span > < span class = "nf" > defined< / span > < span class = "p" > (< / span > < span class = "bp" > self< / span > < span class = "p" > ,< / span > < span class = "n" > t< / span > < span class = "p" > :< / span > < span class = "n" > Temporary< / span > < span class = "p" > )< / span > < span class = "o" > -> < / span > < span class = "nb" > bool< / span > < span class = "p" > :< / span >
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< span class = "sd" > " " " True if the Temporary is renamed." " " < / span >
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< span class = "k" > return< / span > < span class = "n" > t< / span > < span class = "ow" > in< / span > < span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > _env< / span > < / div >
< div class = "viewcode-block" id = "Renamer.copy" > < a class = "viewcode-back" href = "../../api/Lib.Operands.html#Lib.Operands.Renamer.copy" > [docs]< / a > < span class = "k" > def< / span > < span class = "nf" > copy< / span > < span class = "p" > (< / span > < span class = "bp" > self< / span > < span class = "p" > ):< / span >
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< span class = "sd" > " " " Give a copy of the Renamer." " " < / span >
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< span class = "n" > r< / span > < span class = "o" > =< / span > < span class = "n" > Renamer< / span > < span class = "p" > (< / span > < span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > _pool< / span > < span class = "p" > )< / span >
< span class = "n" > r< / span > < span class = "o" > .< / span > < span class = "n" > _env< / span > < span class = "o" > =< / span > < span class = "bp" > self< / span > < span class = "o" > .< / span > < span class = "n" > _env< / span > < span class = "o" > .< / span > < span class = "n" > copy< / span > < span class = "p" > ()< / span >
< span class = "k" > return< / span > < span class = "n" > r< / span > < / div > < / div >
< / pre > < / div >
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