Re: [patch,avr] Tweak addhi3_zero_extend.

2017-02-06 14:03 GMT+04:00 Georg-Johann Lay : > This patch adds an alternative to addhi3_zero_extend for the case > where output operand and the 8-bit addend happen to reside > the the same register. Without the patch this might lead > to additional reloads to satisfy the

[patch,avr] Tweak addhi3_zero_extend.

This patch adds an alternative to addhi3_zero_extend for the case where output operand and the 8-bit addend happen to reside the the same register. Without the patch this might lead to additional reloads to satisfy the constraints like uint16_t func (uint8_t x, uint16_t y) { return x + y;