| George Burgess IV | f8e11b8 | 2017-09-28 06:17:19 +0000 | [diff] [blame] | 1 | ; RUN: llc < %s -mtriple=armv7 | FileCheck %s |
| 2 | ; |
| 3 | ; Ensure that don't crash given a largeish power-of-two shufflevector index. |
| 4 | |
| 5 | %struct.desc = type { i32, [7 x i32] } |
| 6 | |
| 7 | define i32 @foo(%struct.desc* %descs, i32 %num, i32 %cw) local_unnamed_addr #0 { |
| 8 | ; CHECK-LABEL: foo: |
| Francis Visoiu Mistrih | 25528d6 | 2017-12-04 17:18:51 +0000 | [diff] [blame] | 9 | ; CHECK: @ %bb.0: @ %entry |
| George Burgess IV | f8e11b8 | 2017-09-28 06:17:19 +0000 | [diff] [blame] | 10 | ; CHECK-NEXT: mov r1, #32 |
| 11 | ; CHECK-NEXT: vld1.32 {d16, d17}, [r0], r1 |
| 12 | ; CHECK-NEXT: vld1.32 {d18, d19}, [r0] |
| 13 | ; CHECK-NEXT: vtrn.32 q8, q9 |
| 14 | ; CHECK-NEXT: vadd.i32 d16, d16, d16 |
| 15 | ; CHECK-NEXT: vmov.32 r0, d16[1] |
| 16 | ; CHECK-NEXT: bx lr |
| 17 | entry: |
| 18 | %descs.vec = bitcast %struct.desc* %descs to <16 x i32>* |
| 19 | %wide.vec = load <16 x i32>, <16 x i32>* %descs.vec, align 4 |
| 20 | %strided.vec = shufflevector <16 x i32> %wide.vec, <16 x i32> undef, <2 x i32> <i32 0, i32 8> |
| 21 | %bin.rdx20 = add <2 x i32> %strided.vec, %strided.vec |
| 22 | %0 = extractelement <2 x i32> %bin.rdx20, i32 1 |
| 23 | ret i32 %0 |
| 24 | } |