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: 9 ; CHECK: @ %bb.0: @ %entry 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 } 25
