; LLVM IR from Dev-XYS/Algorithms :: High-Precision(Integer).ll (ZN4lintmiES_)

; 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.lint = type { i32, i32, ptr, 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: mustprogress uwtable
define dso_local void @_ZN4lintmiES_(ptr dead_on_unwind noalias writable sret(%class.lint) align 8 %0, ptr noundef nonnull align 8 dereferenceable(24) %1, ptr noundef byval(%class.lint) align 8 %2) #1 align 2 {
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  store ptr %1, ptr %4, align 8, !tbaa !5
  %7 = load ptr, ptr %4, align 8
  %8 = getelementptr inbounds %class.lint, ptr %7, i32 0, i32 0
  %9 = load i32, ptr %8, align 8, !tbaa !9
  call void @_ZN4lintC1Ei(ptr noundef nonnull align 8 dereferenceable(24) %0, i32 noundef %9)
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #2
  store i32 0, ptr %5, align 4, !tbaa !12
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #2
  store i32 0, ptr %6, align 4, !tbaa !12
  br label %10

10:                                               ; preds = %44, %3
  %11 = load i32, ptr %6, align 4, !tbaa !12
  %12 = getelementptr inbounds %class.lint, ptr %7, i32 0, i32 1
  %13 = load i32, ptr %12, align 4, !tbaa !13
  %14 = icmp slt i32 %11, %13
  br i1 %14, label %16, label %15

15:                                               ; preds = %10
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #2
  br label %47

16:                                               ; preds = %10
  %17 = getelementptr inbounds %class.lint, ptr %7, i32 0, i32 2
  %18 = load ptr, ptr %17, align 8, !tbaa !14
  %19 = load i32, ptr %6, align 4, !tbaa !12
  %20 = sext i32 %19 to i64
  %21 = getelementptr inbounds i32, ptr %18, i64 %20
  %22 = load i32, ptr %21, align 4, !tbaa !12
  %23 = getelementptr inbounds %class.lint, ptr %2, i32 0, i32 2
  %24 = load ptr, ptr %23, align 8, !tbaa !14
  %25 = load i32, ptr %6, align 4, !tbaa !12
  %26 = sext i32 %25 to i64
  %27 = getelementptr inbounds i32, ptr %24, i64 %26
  %28 = load i32, ptr %27, align 4, !tbaa !12
  %29 = sub nsw i32 %22, %28
  %30 = load i32, ptr %5, align 4, !tbaa !12
  %31 = add nsw i32 %30, %29
  store i32 %31, ptr %5, align 4, !tbaa !12
  %32 = load i32, ptr %5, align 4, !tbaa !12
  %33 = add nsw i32 %32, 10000
  %34 = srem i32 %33, 10000
  %35 = getelementptr inbounds %class.lint, ptr %0, i32 0, i32 2
  %36 = load ptr, ptr %35, align 8, !tbaa !14
  %37 = load i32, ptr %6, align 4, !tbaa !12
  %38 = sext i32 %37 to i64
  %39 = getelementptr inbounds i32, ptr %36, i64 %38
  store i32 %34, ptr %39, align 4, !tbaa !12
  %40 = load i32, ptr %5, align 4, !tbaa !12
  %41 = icmp slt i32 %40, 0
  %42 = zext i1 %41 to i64
  %43 = select i1 %41, i32 -1, i32 0
  store i32 %43, ptr %5, align 4, !tbaa !12
  br label %44

44:                                               ; preds = %16
  %45 = load i32, ptr %6, align 4, !tbaa !12
  %46 = add nsw i32 %45, 1
  store i32 %46, ptr %6, align 4, !tbaa !12
  br label %10, !llvm.loop !15

47:                                               ; preds = %15
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #2
  ret void
}

declare void @_ZN4lintC1Ei(ptr, i32)

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #2 = { 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++ TBAA"}
!9 = !{!10, !11, i64 0}
!10 = !{!"_ZTS4lint", !11, i64 0, !11, i64 4, !6, i64 8, !6, i64 16}
!11 = !{!"int", !7, i64 0}
!12 = !{!11, !11, i64 0}
!13 = !{!10, !11, i64 4}
!14 = !{!10, !6, i64 8}
!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"

%class.lint = type { i32, i32, ptr, ptr }

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN4lintmiES_(ptr dead_on_unwind noalias writable sret(%class.lint) align 8 %0, ptr nocapture noundef nonnull readonly align 8 dereferenceable(24) %1, ptr nocapture noundef readonly byval(%class.lint) align 8 %2) local_unnamed_addr #0 align 2 {
  %4 = load i32, ptr %1, align 8, !tbaa !5
  tail call void @_ZN4lintC1Ei(ptr noundef nonnull align 8 dereferenceable(24) %0, i32 noundef %4)
  %5 = getelementptr inbounds i8, ptr %1, i64 4
  %6 = load i32, ptr %5, align 4, !tbaa !11
  %7 = icmp sgt i32 %6, 0
  br i1 %7, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %3
  %8 = getelementptr inbounds i8, ptr %1, i64 8
  %9 = load ptr, ptr %8, align 8, !tbaa !12
  %10 = getelementptr inbounds i8, ptr %2, i64 8
  %11 = load ptr, ptr %10, align 8, !tbaa !12
  %12 = getelementptr inbounds i8, ptr %0, i64 8
  %13 = load ptr, ptr %12, align 8, !tbaa !12
  br label %14

._crit_edge:                                      ; preds = %14, %3
  ret void

14:                                               ; preds = %.lr.ph, %14
  %indvars.iv = phi i64 [ 0, %.lr.ph ], [ %indvars.iv.next, %14 ]
  %.089 = phi i32 [ 0, %.lr.ph ], [ %.lobit, %14 ]
  %15 = getelementptr inbounds i32, ptr %9, i64 %indvars.iv
  %16 = load i32, ptr %15, align 4, !tbaa !13
  %17 = getelementptr inbounds i32, ptr %11, i64 %indvars.iv
  %18 = load i32, ptr %17, align 4, !tbaa !13
  %19 = sub nsw i32 %16, %18
  %20 = add nsw i32 %19, %.089
  %21 = add nsw i32 %20, 10000
  %22 = srem i32 %21, 10000
  %23 = getelementptr inbounds i32, ptr %13, i64 %indvars.iv
  store i32 %22, ptr %23, align 4, !tbaa !13
  %.lobit = ashr i32 %20, 31
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %24 = load i32, ptr %5, align 4, !tbaa !11
  %25 = sext i32 %24 to i64
  %26 = icmp slt i64 %indvars.iv.next, %25
  br i1 %26, label %14, label %._crit_edge, !llvm.loop !14
}

declare void @_ZN4lintC1Ei(ptr, i32) local_unnamed_addr

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, !7, i64 0}
!6 = !{!"_ZTS4lint", !7, i64 0, !7, i64 4, !10, i64 8, !10, i64 16}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"any pointer", !8, i64 0}
!11 = !{!6, !7, i64 4}
!12 = !{!6, !10, i64 8}
!13 = !{!7, !7, i64 0}
!14 = distinct !{!14, !15}
!15 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LICMPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,ReassociatePass,SROAPass,SimplifyCFGPass,TailCallElimPass