1 ; RUN: llc -march=hexagon < %s | FileCheck %s
3 ; Test that we generate 64-bit mutiply accumulate/subtract.
6 ; CHECK: r{{[0-9]+}}:{{[0-9]+}} += mpyu
7 define i64 @f0(i64 %a0, i32 %a1, i32 %a2) #0 {
9 %v0 = zext i32 %a1 to i64
10 %v1 = zext i32 %a2 to i64
11 %v2 = mul nsw i64 %v1, %v0
12 %v3 = add nsw i64 %v2, %a0
17 ; CHECK: r{{[0-9]+}}:{{[0-9]+}} -= mpyu
18 define i64 @f1(i64 %a0, i32 %a1, i32 %a2) #0 {
20 %v0 = zext i32 %a1 to i64
21 %v1 = zext i32 %a2 to i64
22 %v2 = mul nsw i64 %v1, %v0
23 %v3 = sub nsw i64 %a0, %v2
27 attributes #0 = { nounwind readnone }