stage2 ARM: fix register allocation in genArmBinOp

Previously, this would reuse an operand even if reuseOperand returned
false for both operands.

genArmBinOpCode was also changed to be more Three-address code oriented
in the process.
6a5a6386c6joachimschmidt557 committed on 2/9/2021, 10:58:41 PM· committed by Jakub Konkaparentc2beaba
1 file changedLine totals unavailable