| Krzysztof Parzyszek | 046090d | 2018-03-12 14:01:28 +0000 | [diff] [blame^] | 1 | ; RUN: llc -O2 -march=hexagon < %s | FileCheck %s |
| 2 | |
| 3 | ; Hexagon's vsplatb/vsplath only consider the lower 8/16 bits of the source |
| 4 | ; register. Any extension of the source is not necessary. |
| 5 | |
| 6 | ; CHECK-NOT: zxtb |
| 7 | ; CHECK-NOT: zxth |
| 8 | |
| 9 | target triple = "hexagon" |
| 10 | |
| 11 | ; Function Attrs: nounwind readnone |
| 12 | define i64 @f0(i64 %a0) #0 { |
| 13 | b0: |
| 14 | %v0 = trunc i64 %a0 to i32 |
| 15 | %v1 = and i32 %v0, 65535 |
| 16 | %v2 = tail call i64 @llvm.hexagon.S2.vsplatrh(i32 %v1) |
| 17 | %v3 = and i32 %v0, 255 |
| 18 | %v4 = tail call i32 @llvm.hexagon.S2.vsplatrb(i32 %v3) |
| 19 | %v5 = sext i32 %v4 to i64 |
| 20 | %v6 = add nsw i64 %v5, %v2 |
| 21 | ret i64 %v6 |
| 22 | } |
| 23 | |
| 24 | ; Function Attrs: nounwind readnone |
| 25 | declare i64 @llvm.hexagon.S2.vsplatrh(i32) #0 |
| 26 | |
| 27 | ; Function Attrs: nounwind readnone |
| 28 | declare i32 @llvm.hexagon.S2.vsplatrb(i32) #0 |
| 29 | |
| 30 | attributes #0 = { nounwind readnone } |