1; RUN: llc -mattr=avr6 < %s -march=avr | FileCheck %s
2
3define i1 @unsigned_multiplication_did_overflow(i8, i8) unnamed_addr {
4; CHECK-LABEL: unsigned_multiplication_did_overflow:
5entry-block:
6  %2 = tail call { i8, i1 } @llvm.umul.with.overflow.i8(i8 %0, i8 %1)
7  %3 = extractvalue { i8, i1 } %2, 1
8  ret i1 %3
9
10; Multiply, return if the high byte is zero
11;
12; CHECK: mul    r{{[0-9]+}}, r{{[0-9]+}}
13; CHECK: mov    [[HIGH:r[0-9]+]], r1
14; CHECK: ldi    [[RET:r[0-9]+]], 1
15; CHECK: cpi    {{.*}}[[HIGH]], 0
16; CHECK: brne   [[LABEL:.LBB[_0-9]+]]
17; CHECK: ldi    {{.*}}[[RET]], 0
18; CHECK: {{.*}}[[LABEL]]
19; CHECK: ret
20}
21
22declare { i8, i1 } @llvm.umul.with.overflow.i8(i8, i8)
23