1 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 4
2 ; RUN: llc < %s -mtriple=x86_64 -mattr=avx512bw | FileCheck %s
4 ; Verify that the DAGCombiner doesn't change build_vector to concat_vectors if
5 ; the vector element type is different than splat type. The example here:
6 ; v8i1 = build_vector (i8 (bitcast (v8i1 X))), ..., (i8 (bitcast (v8i1 X))))
8 define <8 x i1> @foo(<8 x i1> %mask.i1) {
10 ; CHECK: # %bb.0: # %entry
11 ; CHECK-NEXT: vxorps %xmm0, %xmm0, %xmm0
14 %0 = and <8 x i1> %mask.i1, <i1 true, i1 false, i1 false, i1 false, i1 false, i1 false, i1 false, i1 false>
15 %1 = bitcast <8 x i1> %0 to i8
17 %insert54 = insertelement <8 x i1> zeroinitializer, i1 %2, i64 0
18 %splat55 = shufflevector <8 x i1> %insert54, <8 x i1> zeroinitializer, <8 x i32> zeroinitializer
19 %3 = and <8 x i1> %0, %splat55
23 %4 = select <8 x i1> %3, <8 x i1> zeroinitializer, <8 x i1> zeroinitializer