gandiva filter

filter.ll

; ModuleID = 'codegen'
source_filename = "codegen"
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

@llvm.global_ctors = appending global [0 x { i32, void ()*, i8* }] zeroinitializer
@_ZN5arrow7BitUtilL8kBitmaskE = internal unnamed_addr constant [8 x i8] c"\01\02\04\08\10 @\80", align 1

; Function Attrs: norecurse nounwind
define i32 @expr_0_0(i64* nocapture readonly %args, i64* nocapture readonly %arg_addr_offsets, i64* nocapture readnone %local_bitmaps, i16* nocapture readnone %selection_vector, i64 %context_ptr, i64 %nrecords) local_unnamed_addr #0 {
entry:
  %0 = bitcast i64* %args to i8**
  %cond_mem56 = load i8*, i8** %0, align 8
  %1 = getelementptr i64, i64* %arg_addr_offsets, i64 3
  %2 = load i64, i64* %1, align 8
  %a_mem_addr = getelementptr i64, i64* %args, i64 3
  %3 = bitcast i64* %a_mem_addr to double**
  %a_mem7 = load double*, double** %3, align 8
  %scevgep = getelementptr double, double* %a_mem7, i64 %2
  br label %loop

loop:                                             ; preds = %loop, %entry
  %loop_var = phi i64 [ 0, %entry ], [ %"loop_var+1", %loop ]
  %scevgep8 = getelementptr double, double* %scevgep, i64 %loop_var
  %a = load double, double* %scevgep8, align 8
  %4 = fcmp olt double %a, 1.000000e+03
  %5 = sext i1 %4 to i8
  %.udiv = lshr i64 %loop_var, 3
  %6 = getelementptr inbounds i8, i8* %cond_mem56, i64 %.udiv
  %7 = load i8, i8* %6, align 1, !tbaa !2
  %8 = xor i8 %7, %5
  %.urem = and i64 %loop_var, 7
  %9 = getelementptr inbounds [8 x i8], [8 x i8]* @_ZN5arrow7BitUtilL8kBitmaskE, i64 0, i64 %.urem
  %10 = load i8, i8* %9, align 1, !tbaa !2
  %11 = and i8 %8, %10
  %12 = xor i8 %11, %7
  store i8 %12, i8* %6, align 1, !tbaa !2
  %"loop_var+1" = add nuw nsw i64 %loop_var, 1
  %"loop_var < nrec" = icmp slt i64 %"loop_var+1", %nrecords
  br i1 %"loop_var < nrec", label %loop, label %exit

exit:                                             ; preds = %loop
  ret i32 0
}

attributes #0 = { norecurse nounwind }

!llvm.ident = !{!0, !0, !0, !0, !0, !0, !0, !0, !0, !0, !0}
!llvm.module.flags = !{!1}

!0 = !{!"clang version 7.0.0 (tags/RELEASE_700/final)"}
!1 = !{i32 1, !"wchar_size", i32 4}
!2 = !{!3, !3, i64 0}
!3 = !{!"omnipotent char", !4, i64 0}
!4 = !{!"Simple C++ TBAA"}