File: pr32278.ll

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llvm-toolchain-11 1%3A11.0.1-2~deb10u1
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; PR32278

; RUN: llc -mtriple=x86_64-unknown < %s

define i8 @foo_v4i1_0_0_1_1_2_2_3_3(i8 %in) {
  %trunc = trunc i8 %in to i4
  %mask = bitcast i4 %trunc to <4 x i1>
  %s = shufflevector <4 x i1> %mask, <4 x i1> undef, <8 x i32> <i32 0, i32 0, i32 1, i32 1, i32 2, i32 2, i32 3, i32 3>
  %b = bitcast <8 x i1> %s to i8
  ret i8 %b
}