| Dylan McKay | 0d4778f | 2016-11-09 23:46:52 +0000 | [diff] [blame^] | 1 | ; RUN: llc -mattr=mul,movw < %s -march=avr | FileCheck %s |
| 2 | |
| 3 | define i8 @mult8(i8 %a, i8 %b) { |
| 4 | ; CHECK-LABEL: mult8: |
| 5 | ; CHECK: muls r22, r24 |
| 6 | ; CHECK: eor r1, r1 |
| 7 | ; CHECK: mov r24, r0 |
| 8 | %mul = mul i8 %b, %a |
| 9 | ret i8 %mul |
| 10 | } |
| 11 | |
| 12 | define i16 @mult16(i16 %a, i16 %b) { |
| 13 | ; CHECK-LABEL: mult16: |
| 14 | ; CHECK: muls r22, r25 |
| 15 | ; CHECK: mov r18, r0 |
| 16 | ; CHECK: mul r22, r24 |
| 17 | ; CHECK: mov r19, r0 |
| 18 | ; CHECK: mov r20, r1 |
| 19 | ; CHECK: eor r1, r1 |
| 20 | ; CHECK: add r20, r18 |
| 21 | ; CHECK: muls r23, r24 |
| 22 | ; CHECK: eor r1, r1 |
| 23 | ; CHECK: mov r22, r0 |
| 24 | ; CHECK: add r22, r20 |
| 25 | ; :TODO: finish after reworking shift instructions |
| 26 | %mul = mul nsw i16 %b, %a |
| 27 | ret i16 %mul |
| 28 | } |