1 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
2 ; RUN: llc < %s -mtriple=armv7 | FileCheck %s
4 ; Ensure that don't crash given a largeish power-of-two shufflevector index.
6 %struct.desc = type { i32, [7 x i32] }
8 define i32 @foo(ptr %descs, i32 %num, i32 %cw) local_unnamed_addr #0 {
10 ; CHECK: @ %bb.0: @ %entry
11 ; CHECK-NEXT: vldr d16, [r0, #32]
12 ; CHECK-NEXT: vadd.i32 d16, d16, d16
13 ; CHECK-NEXT: vmov.32 r0, d16[0]
16 %wide.vec = load <16 x i32>, ptr %descs, align 4
17 %strided.vec = shufflevector <16 x i32> %wide.vec, <16 x i32> undef, <2 x i32> <i32 0, i32 8>
18 %bin.rdx20 = add <2 x i32> %strided.vec, %strided.vec
19 %0 = extractelement <2 x i32> %bin.rdx20, i32 1