if (!(insn instanceof CstInsn)) {
return false;
}
RegisterSpecList regs = insn.getRegisters();
RegisterSpec reg;
switch (regs.size()) {
case 1: {
reg = regs.get(0);
break;
}
case 2: {
/*
* This format is allowed for ops that are effectively
* 2-arg but where the two args are identical.
*/
reg = regs.get(0);
if (reg.getReg() != regs.get(1).getReg()) {
return false;
}
break;
}
default: {
return false;
}
}
if (!unsignedFitsInShort(reg.getReg())) {
return false;
}
CstInsn ci = (CstInsn) insn;
Constant cst = ci.getConstant();