| ; RUN: llc -mattr=mul,movw < %s -march=avr | FileCheck %s |
| |
| define i8 @mult8(i8 %a, i8 %b) { |
| ; CHECK-LABEL: mult8: |
| ; CHECK: muls r22, r24 |
| ; CHECK: clr r1 |
| ; CHECK: mov r24, r0 |
| %mul = mul i8 %b, %a |
| ret i8 %mul |
| } |
| |
| define i16 @mult16(i16 %a, i16 %b) { |
| ; CHECK-LABEL: mult16: |
| ; CHECK: muls r22, r25 |
| ; CHECK: mov r18, r0 |
| ; CHECK: mul r22, r24 |
| ; CHECK: mov r19, r0 |
| ; CHECK: mov r20, r1 |
| ; CHECK: clr r1 |
| ; CHECK: add r20, r18 |
| ; CHECK: muls r23, r24 |
| ; CHECK: clr r1 |
| ; CHECK: mov r22, r0 |
| ; CHECK: add r22, r20 |
| ; :TODO: finish after reworking shift instructions |
| %mul = mul nsw i16 %b, %a |
| ret i16 %mul |
| } |
