; LLVM IR from jermp/2i_bench :: external/CRoaring/src/containers (bitset)

; 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"

%struct.bitset_container_s = type { i32, ptr }

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: inlinehint nounwind uwtable
declare hidden i32 @hamming(i64 noundef) #1

; Function Attrs: nounwind uwtable
define dso_local i32 @bitset_container_xor_justcard(ptr noundef %0, ptr noundef %1) #2 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca i32, align 4
  %8 = alloca i64, align 8
  %9 = alloca i64, align 8
  %10 = alloca i64, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  store ptr %1, ptr %4, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #3
  %11 = load ptr, ptr %3, align 8, !tbaa !5
  %12 = getelementptr inbounds %struct.bitset_container_s, ptr %11, i32 0, i32 1
  %13 = load ptr, ptr %12, align 8, !tbaa !9
  store ptr %13, ptr %5, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #3
  %14 = load ptr, ptr %4, align 8, !tbaa !5
  %15 = getelementptr inbounds %struct.bitset_container_s, ptr %14, i32 0, i32 1
  %16 = load ptr, ptr %15, align 8, !tbaa !9
  store ptr %16, ptr %6, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #3
  store i32 0, ptr %7, align 4, !tbaa !12
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #3
  store i64 0, ptr %8, align 8, !tbaa !13
  br label %17

17:                                               ; preds = %50, %2
  %18 = load i64, ptr %8, align 8, !tbaa !13
  %19 = icmp ult i64 %18, 1024
  br i1 %19, label %21, label %20

20:                                               ; preds = %17
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #3
  br label %53

21:                                               ; preds = %17
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #3
  %22 = load ptr, ptr %5, align 8, !tbaa !5
  %23 = load i64, ptr %8, align 8, !tbaa !13
  %24 = getelementptr inbounds i64, ptr %22, i64 %23
  %25 = load i64, ptr %24, align 8, !tbaa !13
  %26 = load ptr, ptr %6, align 8, !tbaa !5
  %27 = load i64, ptr %8, align 8, !tbaa !13
  %28 = getelementptr inbounds i64, ptr %26, i64 %27
  %29 = load i64, ptr %28, align 8, !tbaa !13
  %30 = xor i64 %25, %29
  store i64 %30, ptr %9, align 8, !tbaa !13
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #3
  %31 = load ptr, ptr %5, align 8, !tbaa !5
  %32 = load i64, ptr %8, align 8, !tbaa !13
  %33 = add i64 %32, 1
  %34 = getelementptr inbounds i64, ptr %31, i64 %33
  %35 = load i64, ptr %34, align 8, !tbaa !13
  %36 = load ptr, ptr %6, align 8, !tbaa !5
  %37 = load i64, ptr %8, align 8, !tbaa !13
  %38 = add i64 %37, 1
  %39 = getelementptr inbounds i64, ptr %36, i64 %38
  %40 = load i64, ptr %39, align 8, !tbaa !13
  %41 = xor i64 %35, %40
  store i64 %41, ptr %10, align 8, !tbaa !13
  %42 = load i64, ptr %9, align 8, !tbaa !13
  %43 = call i32 @hamming(i64 noundef %42)
  %44 = load i32, ptr %7, align 4, !tbaa !12
  %45 = add nsw i32 %44, %43
  store i32 %45, ptr %7, align 4, !tbaa !12
  %46 = load i64, ptr %10, align 8, !tbaa !13
  %47 = call i32 @hamming(i64 noundef %46)
  %48 = load i32, ptr %7, align 4, !tbaa !12
  %49 = add nsw i32 %48, %47
  store i32 %49, ptr %7, align 4, !tbaa !12
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #3
  br label %50

50:                                               ; preds = %21
  %51 = load i64, ptr %8, align 8, !tbaa !13
  %52 = add i64 %51, 2
  store i64 %52, ptr %8, align 8, !tbaa !13
  br label %17, !llvm.loop !15

53:                                               ; preds = %20
  %54 = load i32, ptr %7, align 4, !tbaa !12
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #3
  ret i32 %54
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { inlinehint nounwind 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 #2 = { nounwind 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 #3 = { nounwind }

!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/C++ TBAA"}
!9 = !{!10, !6, i64 8}
!10 = !{!"bitset_container_s", !11, i64 0, !6, i64 8}
!11 = !{!"int", !7, i64 0}
!12 = !{!11, !11, i64 0}
!13 = !{!14, !14, i64 0}
!14 = !{!"long", !7, i64 0}
!15 = distinct !{!15, !16}
!16 = !{!"llvm.loop.mustprogress"}


; 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: inlinehint nounwind uwtable
declare hidden i32 @hamming(i64 noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local i32 @bitset_container_xor_justcard(ptr nocapture noundef readonly %0, ptr nocapture noundef readonly %1) local_unnamed_addr #1 {
  %3 = getelementptr inbounds i8, ptr %0, i64 8
  %4 = load ptr, ptr %3, align 8, !tbaa !5
  %5 = getelementptr inbounds i8, ptr %1, i64 8
  %6 = load ptr, ptr %5, align 8, !tbaa !5
  br label %8

7:                                                ; preds = %8
  ret i32 %23

8:                                                ; preds = %2, %8
  %.018 = phi i32 [ 0, %2 ], [ %23, %8 ]
  %.01617 = phi i64 [ 0, %2 ], [ %24, %8 ]
  %9 = getelementptr inbounds i64, ptr %4, i64 %.01617
  %10 = load i64, ptr %9, align 8, !tbaa !11
  %11 = getelementptr inbounds i64, ptr %6, i64 %.01617
  %12 = load i64, ptr %11, align 8, !tbaa !11
  %13 = xor i64 %12, %10
  %14 = or disjoint i64 %.01617, 1
  %15 = getelementptr inbounds i64, ptr %4, i64 %14
  %16 = load i64, ptr %15, align 8, !tbaa !11
  %17 = getelementptr inbounds i64, ptr %6, i64 %14
  %18 = load i64, ptr %17, align 8, !tbaa !11
  %19 = xor i64 %18, %16
  %20 = tail call i32 @hamming(i64 noundef %13)
  %21 = add nsw i32 %20, %.018
  %22 = tail call i32 @hamming(i64 noundef %19)
  %23 = add nsw i32 %21, %22
  %24 = add nuw nsw i64 %.01617, 2
  %25 = icmp ult i64 %.01617, 1022
  br i1 %25, label %8, label %7, !llvm.loop !13
}

attributes #0 = { inlinehint nounwind 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 = { nounwind 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, !10, i64 8}
!6 = !{!"bitset_container_s", !7, i64 0, !10, i64 8}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"any pointer", !8, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"long", !8, i64 0}
!13 = distinct !{!13, !14}
!14 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,LCSSAPass,LoopRotatePass,LoopUnrollPass,PostOrderFunctionAttrsPass,ReassociatePass,SROAPass,SimplifyCFGPass,TailCallElimPass