; LLVM IR from b00dle/libpcc :: src/BitVec.ll (ZN6BitVecC2Emmm8BitCountS0_S0_)

; Unoptimized IR (clang -disable-llvm-passes):
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

%class.BitVec = type { ptr, ptr, ptr }

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN6BitVecC2Emmm8BitCountS0_S0_(ptr noundef nonnull align 8 dereferenceable(24) %0, i64 noundef %1, i64 noundef %2, i64 noundef %3, i32 noundef %4, i32 noundef %5, i32 noundef %6) unnamed_addr #0 align 2 {
  %8 = alloca ptr, align 8
  %9 = alloca i64, align 8
  %10 = alloca i64, align 8
  %11 = alloca i64, align 8
  %12 = alloca i32, align 4
  %13 = alloca i32, align 4
  %14 = alloca i32, align 4
  store ptr %0, ptr %8, align 8, !tbaa !5
  store i64 %1, ptr %9, align 8, !tbaa !9
  store i64 %2, ptr %10, align 8, !tbaa !9
  store i64 %3, ptr %11, align 8, !tbaa !9
  store i32 %4, ptr %12, align 4, !tbaa !11
  store i32 %5, ptr %13, align 4, !tbaa !11
  store i32 %6, ptr %14, align 4, !tbaa !11
  %15 = load ptr, ptr %8, align 8
  %16 = getelementptr inbounds %class.BitVec, ptr %15, i32 0, i32 0
  store ptr null, ptr %16, align 8, !tbaa !13
  %17 = getelementptr inbounds %class.BitVec, ptr %15, i32 0, i32 1
  store ptr null, ptr %17, align 8, !tbaa !15
  %18 = getelementptr inbounds %class.BitVec, ptr %15, i32 0, i32 2
  store ptr null, ptr %18, align 8, !tbaa !16
  %19 = load i32, ptr %12, align 4, !tbaa !11
  %20 = load i64, ptr %9, align 8, !tbaa !9
  call void @_ZN6BitVec5initXE8BitCountm(ptr noundef nonnull align 8 dereferenceable(24) %15, i32 noundef %19, i64 noundef %20)
  %21 = load i32, ptr %13, align 4, !tbaa !11
  %22 = load i64, ptr %10, align 8, !tbaa !9
  call void @_ZN6BitVec5initYE8BitCountm(ptr noundef nonnull align 8 dereferenceable(24) %15, i32 noundef %21, i64 noundef %22)
  %23 = load i32, ptr %14, align 4, !tbaa !11
  %24 = load i64, ptr %11, align 8, !tbaa !9
  call void @_ZN6BitVec5initZE8BitCountm(ptr noundef nonnull align 8 dereferenceable(24) %15, i32 noundef %23, i64 noundef %24)
  ret void
}

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN6BitVec5initXE8BitCountm(ptr noundef nonnull align 8 dereferenceable(24), i32 noundef, i64 noundef) #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN6BitVec5initYE8BitCountm(ptr noundef nonnull align 8 dereferenceable(24), i32 noundef, i64 noundef) #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN6BitVec5initZE8BitCountm(ptr noundef nonnull align 8 dereferenceable(24), i32 noundef, i64 noundef) #0 align 2

attributes #0 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }

!llvm.module.flags = !{!0, !1, !2, !3}
!llvm.ident = !{!4}

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"long", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"_ZTS8BitCount", !7, i64 0}
!13 = !{!14, !6, i64 0}
!14 = !{!"_ZTS6BitVec", !6, i64 0, !6, i64 8, !6, i64 16}
!15 = !{!14, !6, i64 8}
!16 = !{!14, !6, i64 16}


; Optimized IR (opt -passes='default<O3>'):
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN6BitVecC2Emmm8BitCountS0_S0_(ptr noundef nonnull align 8 dereferenceable(24) %0, i64 noundef %1, i64 noundef %2, i64 noundef %3, i32 noundef %4, i32 noundef %5, i32 noundef %6) unnamed_addr #0 align 2 {
  tail call void @llvm.memset.p0.i64(ptr noundef nonnull align 8 dereferenceable(24) %0, i8 0, i64 24, i1 false)
  tail call void @_ZN6BitVec5initXE8BitCountm(ptr noundef nonnull align 8 dereferenceable(24) %0, i32 noundef %4, i64 noundef %1)
  tail call void @_ZN6BitVec5initYE8BitCountm(ptr noundef nonnull align 8 dereferenceable(24) %0, i32 noundef %5, i64 noundef %2)
  tail call void @_ZN6BitVec5initZE8BitCountm(ptr noundef nonnull align 8 dereferenceable(24) %0, i32 noundef %6, i64 noundef %3)
  ret void
}

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN6BitVec5initXE8BitCountm(ptr noundef nonnull align 8 dereferenceable(24), i32 noundef, i64 noundef) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN6BitVec5initYE8BitCountm(ptr noundef nonnull align 8 dereferenceable(24), i32 noundef, i64 noundef) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN6BitVec5initZE8BitCountm(ptr noundef nonnull align 8 dereferenceable(24), i32 noundef, i64 noundef) local_unnamed_addr #0 align 2

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #1

attributes #0 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { nocallback nofree nounwind willreturn memory(argmem: write) }

!llvm.module.flags = !{!0, !1, !2, !3}
!llvm.ident = !{!4}

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,InstCombinePass,MemCpyOptPass,SROAPass,TailCallElimPass