| ; RUN: llc -mattr=avr6,-mul < %s -march=avr | FileCheck %s |
| ; RUN: llc -mcpu=attiny85 < %s -march=avr | FileCheck %s |
| ; RUN: llc -mcpu=ata5272 < %s -march=avr | FileCheck %s |
| ; RUN: llc -mcpu=attiny861a < %s -march=avr | FileCheck %s |
| ; RUN: llc -mcpu=at90usb82 < %s -march=avr | FileCheck %s |
| |
| ; Tests lowering of multiplication to compiler support routines. |
| |
| ; CHECK-LABEL: mul8: |
| define i8 @mul8(i8 %a, i8 %b) { |
| ; CHECK: mov r25, r24 |
| ; CHECK: mov r24, r22 |
| ; CHECK: mov r22, r25 |
| ; CHECK: call __mulqi3 |
| %mul = mul i8 %b, %a |
| ret i8 %mul |
| } |
| |
| ; CHECK-LABEL: mul16: |
| define i16 @mul16(i16 %a, i16 %b) { |
| ; CHECK: movw r18, r24 |
| ; CHECK: movw r24, r22 |
| ; CHECK: movw r22, r18 |
| ; CHECK: call __mulhi3 |
| %mul = mul nsw i16 %b, %a |
| ret i16 %mul |
| } |
| |
