17 lines
736 B
LLVM
17 lines
736 B
LLVM
; 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
|
|
}
|