Krzysztof Parzyszek | 046090d | 2018-03-12 14:01:28 +0000 | [diff] [blame] | 1 | ; RUN: llc -march=hexagon < %s | FileCheck %s |
| 2 | ; |
| 3 | ; Check if we generate rounding-asr instruction. It is equivalent to |
| 4 | ; Rd = ((Rs >> #u) +1) >> 1. |
| 5 | target triple = "hexagon" |
| 6 | |
| 7 | ; Function Attrs: nounwind |
| 8 | define i32 @f0(i32 %a0) #0 { |
| 9 | b0: |
| 10 | ; CHECK: asr{{.*}}:rnd |
| 11 | %v0 = alloca i32, align 4 |
| 12 | store i32 %a0, i32* %v0, align 4 |
| 13 | %v1 = load i32, i32* %v0, align 4 |
| 14 | %v2 = ashr i32 %v1, 10 |
| 15 | %v3 = add nsw i32 %v2, 1 |
| 16 | %v4 = ashr i32 %v3, 1 |
| 17 | ret i32 %v4 |
| 18 | } |
| 19 | |
| 20 | ; Function Attrs: nounwind |
| 21 | define i64 @f1(i64 %a0) #0 { |
| 22 | b0: |
| 23 | ; CHECK: asr{{.*}}:rnd |
| 24 | %v0 = alloca i64, align 8 |
| 25 | store i64 %a0, i64* %v0, align 8 |
| 26 | %v1 = load i64, i64* %v0, align 8 |
| 27 | %v2 = ashr i64 %v1, 17 |
| 28 | %v3 = add nsw i64 %v2, 1 |
| 29 | %v4 = ashr i64 %v3, 1 |
| 30 | ret i64 %v4 |
| 31 | } |
| 32 | |
| 33 | attributes #0 = { nounwind } |