| Krzysztof Parzyszek | 046090d | 2018-03-12 14:01:28 +0000 | [diff] [blame] | 1 | ; RUN: llc -march=hexagon < %s | FileCheck %s |
| 2 | ; Check that we generate 'cmpb.eq' instruction for a byte comparision. |
| 3 | |
| 4 | @g0 = common global i8 0, align 1 |
| 5 | |
| 6 | ; Function Attrs: nounwind |
| 7 | define i32 @f0(i32 %a0, i32 %a1) #0 { |
| 8 | b0: |
| 9 | %v0 = xor i32 %a1, %a0 |
| 10 | %v1 = and i32 %v0, 255 |
| 11 | %v2 = icmp eq i32 %v1, 0 |
| 12 | br i1 %v2, label %b1, label %b2 |
| 13 | ; CHECK-NOT: xor(r{{[0-9]+}},r{{[0-9]+}}) |
| 14 | ; CHECK-NOT: zxtb(r{{[0-9]+}}) |
| 15 | ; CHECK: cmpb.eq(r{{[0-9]+}},r{{[0-9]+}}) |
| 16 | |
| 17 | b1: ; preds = %b0 |
| 18 | %v3 = trunc i32 %a0 to i8 |
| 19 | store i8 %v3, i8* @g0, align 1 |
| 20 | br label %b2 |
| 21 | |
| 22 | b2: ; preds = %b1, %b0 |
| 23 | %v4 = phi i32 [ 1, %b1 ], [ 0, %b0 ] |
| 24 | ret i32 %v4 |
| 25 | } |
| 26 | |
| 27 | attributes #0 = { nounwind } |