angr.analyses.decompiler.peephole_optimizations.a_sub_a_shr_const_shr_const¶

class angr.analyses.decompiler.peephole_optimizations.a_sub_a_shr_const_shr_const.ASubAShrConstShrConst¶

Bases: PeepholeOptimizationExprBase

Convert cdq; sub eax, edx; sar eax, 1 to eax /= 2.

NAME = '(a - (a >> 31)) >> N => a / 2 ** N (signed)'¶

expr_classes = (<class 'angr.ailment.expression.BinaryOp'>,)¶

optimize(expr, **kwargs)¶

Parameters:: expr (BinaryOp)