; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 4 ; RUN: llc < %s -mtriple=x86_64 -mattr=avx512bw | FileCheck %s ; Verify that the DAGCombiner doesn't change build_vector to concat_vectors if ; the vector element type is different than splat type. The example here: ; v8i1 = build_vector (i8 (bitcast (v8i1 X))), ..., (i8 (bitcast (v8i1 X)))) define <8 x i1> @foo(<8 x i1> %mask.i1) { ; CHECK-LABEL: foo: ; CHECK: # %bb.0: # %entry ; CHECK-NEXT: vxorps %xmm0, %xmm0, %xmm0 ; CHECK-NEXT: retq entry: %0 = and <8 x i1> %mask.i1, %1 = bitcast <8 x i1> %0 to i8 %2 = icmp ne i8 %1, 0 %insert54 = insertelement <8 x i1> zeroinitializer, i1 %2, i64 0 %splat55 = shufflevector <8 x i1> %insert54, <8 x i1> zeroinitializer, <8 x i32> zeroinitializer %3 = and <8 x i1> %0, %splat55 br label %end end: ; preds = %entry %4 = select <8 x i1> %3, <8 x i1> zeroinitializer, <8 x i1> zeroinitializer ret <8 x i1> %4 }