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      1 ; RUN: llc < %s -march=x86-64
      2 
      3 declare <2 x i64> @llvm.cttz.v2i64(<2 x i64>, i1)
      4 declare <2 x i64> @llvm.ctlz.v2i64(<2 x i64>, i1)
      5 declare <2 x i64> @llvm.ctpop.v2i64(<2 x i64>)
      6 
      7 define <2 x i64> @footz(<2 x i64> %a) nounwind {
      8   %c = call <2 x i64> @llvm.cttz.v2i64(<2 x i64> %a, i1 true)
      9   ret <2 x i64> %c
     10 }
     11 define <2 x i64> @foolz(<2 x i64> %a) nounwind {
     12   %c = call <2 x i64> @llvm.ctlz.v2i64(<2 x i64> %a, i1 true)
     13   ret <2 x i64> %c
     14 }
     15 define <2 x i64> @foopop(<2 x i64> %a) nounwind {
     16   %c = call <2 x i64> @llvm.ctpop.v2i64(<2 x i64> %a)
     17   ret <2 x i64> %c
     18 }
     19