| ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py |
| ; RUN: llc < %s -mtriple=aarch64-- | FileCheck %s |
| |
| ; A shuffle mask with all undef elements is always legal. |
| |
| define <4 x i32> @PR41535(<2 x i32> %p1, <2 x i32> %p2) { |
| ; CHECK-LABEL: PR41535: |
| ; CHECK: // %bb.0: |
| ; CHECK-NEXT: ext v0.8b, v0.8b, v1.8b, #4 |
| ; CHECK-NEXT: mov v0.d[1], v0.d[0] |
| ; CHECK-NEXT: ret |
| %cat1 = shufflevector <2 x i32> %p1, <2 x i32> undef, <4 x i32> <i32 undef, i32 1, i32 undef, i32 undef> |
| %cat2 = shufflevector <2 x i32> %p2, <2 x i32> undef, <4 x i32> <i32 0, i32 undef, i32 undef, i32 undef> |
| %r = shufflevector <4 x i32> %cat1, <4 x i32> %cat2, <4 x i32> <i32 undef, i32 undef, i32 1, i32 4> |
| ret <4 x i32> %r |
| } |