In some cases (such as bitcast), an operand may be the same MCValue as the result. If that operand died and was a register, it was freed by processDeath. We have to "re-allocate" the register.
In some cases (such as bitcast), an operand may be the same MCValue as the result. If that operand died and was a register, it was freed by processDeath. We have to "re-allocate" the register.