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; 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, <i1 true, i1 false, i1 false, i1 false, i1 false, i1 false, i1 false, i1 false>
%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
}
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