| Krzysztof Parzyszek | 046090d | 2018-03-12 14:01:28 +0000 | [diff] [blame] | 1 | ; RUN: llc -march=hexagon < %s | FileCheck %s |
| 2 | |
| 3 | ; Test that we generate 64-bit mutiply accumulate/subtract. |
| 4 | |
| 5 | ; CHECK-LABEL: f0: |
| 6 | ; CHECK: r{{[0-9]+}}:{{[0-9]+}} += mpyu |
| 7 | define i64 @f0(i64 %a0, i32 %a1, i32 %a2) #0 { |
| 8 | b0: |
| 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 |
| 13 | ret i64 %v3 |
| 14 | } |
| 15 | |
| 16 | ; CHECK-LABEL: f1: |
| 17 | ; CHECK: r{{[0-9]+}}:{{[0-9]+}} -= mpyu |
| 18 | define i64 @f1(i64 %a0, i32 %a1, i32 %a2) #0 { |
| 19 | b0: |
| 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 |
| 24 | ret i64 %v3 |
| 25 | } |
| 26 | |
| 27 | attributes #0 = { nounwind readnone } |