; LLVM IR from div-bargali/Data-Structures-and-Algorithms :: C++/Algorithms/Dynamic-Programming/Minimum Number of Jumps.ll (Z5jumpsPii)

; 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"

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_Z5jumpsPii(ptr noundef %0, i32 noundef %1) #0 {
  %3 = alloca i32, align 4
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  %6 = alloca ptr, align 8
  %7 = alloca i64, align 8
  %8 = alloca i32, align 4
  %9 = alloca i32, align 4
  %10 = alloca i32, align 4
  %11 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store i32 %1, ptr %5, align 4, !tbaa !9
  %12 = load ptr, ptr %4, align 8, !tbaa !5
  %13 = getelementptr inbounds i32, ptr %12, i64 0
  %14 = load i32, ptr %13, align 4, !tbaa !9
  %15 = icmp eq i32 %14, 0
  br i1 %15, label %16, label %17

16:                                               ; preds = %2
  store i32 -1, ptr %3, align 4
  br label %86

17:                                               ; preds = %2
  %18 = load i32, ptr %5, align 4, !tbaa !9
  %19 = zext i32 %18 to i64
  %20 = call ptr @llvm.stacksave.p0()
  store ptr %20, ptr %6, align 8
  %21 = alloca i32, i64 %19, align 16
  store i64 %19, ptr %7, align 8
  %22 = getelementptr inbounds i32, ptr %21, i64 0
  store i32 0, ptr %22, align 16, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #4
  store i32 1, ptr %8, align 4, !tbaa !9
  br label %23

23:                                               ; preds = %66, %17
  %24 = load i32, ptr %8, align 4, !tbaa !9
  %25 = load i32, ptr %5, align 4, !tbaa !9
  %26 = icmp slt i32 %24, %25
  br i1 %26, label %28, label %27

27:                                               ; preds = %23
  store i32 2, ptr %9, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #4
  br label %69

28:                                               ; preds = %23
  %29 = load i32, ptr %8, align 4, !tbaa !9
  %30 = sext i32 %29 to i64
  %31 = getelementptr inbounds i32, ptr %21, i64 %30
  store i32 2147483647, ptr %31, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %10) #4
  store i32 0, ptr %10, align 4, !tbaa !9
  br label %32

32:                                               ; preds = %62, %28
  %33 = load i32, ptr %10, align 4, !tbaa !9
  %34 = load i32, ptr %8, align 4, !tbaa !9
  %35 = icmp slt i32 %33, %34
  br i1 %35, label %37, label %36

36:                                               ; preds = %32
  store i32 5, ptr %9, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #4
  br label %65

37:                                               ; preds = %32
  %38 = load i32, ptr %8, align 4, !tbaa !9
  %39 = load ptr, ptr %4, align 8, !tbaa !5
  %40 = load i32, ptr %10, align 4, !tbaa !9
  %41 = sext i32 %40 to i64
  %42 = getelementptr inbounds i32, ptr %39, i64 %41
  %43 = load i32, ptr %42, align 4, !tbaa !9
  %44 = load i32, ptr %10, align 4, !tbaa !9
  %45 = add nsw i32 %43, %44
  %46 = icmp sle i32 %38, %45
  br i1 %46, label %47, label %61

47:                                               ; preds = %37
  %48 = load i32, ptr %8, align 4, !tbaa !9
  %49 = sext i32 %48 to i64
  %50 = getelementptr inbounds i32, ptr %21, i64 %49
  call void @llvm.lifetime.start.p0(i64 4, ptr %11) #4
  %51 = load i32, ptr %10, align 4, !tbaa !9
  %52 = sext i32 %51 to i64
  %53 = getelementptr inbounds i32, ptr %21, i64 %52
  %54 = load i32, ptr %53, align 4, !tbaa !9
  %55 = add nsw i32 %54, 1
  store i32 %55, ptr %11, align 4, !tbaa !9
  %56 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3minIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4) %50, ptr noundef nonnull align 4 dereferenceable(4) %11)
  %57 = load i32, ptr %56, align 4, !tbaa !9
  %58 = load i32, ptr %8, align 4, !tbaa !9
  %59 = sext i32 %58 to i64
  %60 = getelementptr inbounds i32, ptr %21, i64 %59
  store i32 %57, ptr %60, align 4, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #4
  br label %61

61:                                               ; preds = %47, %37
  br label %62

62:                                               ; preds = %61
  %63 = load i32, ptr %10, align 4, !tbaa !9
  %64 = add nsw i32 %63, 1
  store i32 %64, ptr %10, align 4, !tbaa !9
  br label %32, !llvm.loop !11

65:                                               ; preds = %36
  br label %66

66:                                               ; preds = %65
  %67 = load i32, ptr %8, align 4, !tbaa !9
  %68 = add nsw i32 %67, 1
  store i32 %68, ptr %8, align 4, !tbaa !9
  br label %23, !llvm.loop !13

69:                                               ; preds = %27
  %70 = load i32, ptr %5, align 4, !tbaa !9
  %71 = sub nsw i32 %70, 1
  %72 = sext i32 %71 to i64
  %73 = getelementptr inbounds i32, ptr %21, i64 %72
  %74 = load i32, ptr %73, align 4, !tbaa !9
  %75 = icmp eq i32 %74, 2147483647
  br i1 %75, label %76, label %77

76:                                               ; preds = %69
  br label %83

77:                                               ; preds = %69
  %78 = load i32, ptr %5, align 4, !tbaa !9
  %79 = sub nsw i32 %78, 1
  %80 = sext i32 %79 to i64
  %81 = getelementptr inbounds i32, ptr %21, i64 %80
  %82 = load i32, ptr %81, align 4, !tbaa !9
  br label %83

83:                                               ; preds = %77, %76
  %84 = phi i32 [ -1, %76 ], [ %82, %77 ]
  store i32 %84, ptr %3, align 4
  store i32 1, ptr %9, align 4
  %85 = load ptr, ptr %6, align 8
  call void @llvm.stackrestore.p0(ptr %85)
  br label %86

86:                                               ; preds = %83, %16
  %87 = load i32, ptr %3, align 4
  ret i32 %87
}

; Function Attrs: nocallback nofree nosync nounwind willreturn
declare ptr @llvm.stacksave.p0() #1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3minIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) #3

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: nocallback nofree nosync nounwind willreturn
declare void @llvm.stackrestore.p0(ptr) #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 nosync nounwind willreturn }
attributes #2 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #3 = { inlinehint mustprogress 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 #4 = { 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, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = distinct !{!13, !12}


; 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 nounwind uwtable
define dso_local noundef range(i32 -2147483648, 2147483647) i32 @_Z5jumpsPii(ptr nocapture noundef readonly %0, i32 noundef %1) local_unnamed_addr #0 {
  %3 = alloca i32, align 4
  %4 = load i32, ptr %0, align 4, !tbaa !5
  %5 = icmp eq i32 %4, 0
  br i1 %5, label %31, label %6

6:                                                ; preds = %2
  %7 = zext i32 %1 to i64
  %8 = tail call ptr @llvm.stacksave.p0()
  %9 = alloca i32, i64 %7, align 16
  store i32 0, ptr %9, align 16, !tbaa !5
  %10 = icmp sgt i32 %1, 1
  br i1 %10, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %17, %6
  %11 = sext i32 %1 to i64
  %12 = getelementptr i32, ptr %9, i64 %11
  %13 = getelementptr i8, ptr %12, i64 -4
  %14 = load i32, ptr %13, align 4, !tbaa !5
  %15 = icmp eq i32 %14, 2147483647
  %spec.select = select i1 %15, i32 -1, i32 %14
  call void @llvm.stackrestore.p0(ptr %8)
  br label %31

.lr.ph:                                           ; preds = %6, %17
  %indvars.iv26 = phi i64 [ %indvars.iv.next27, %17 ], [ 1, %6 ]
  %16 = getelementptr inbounds i32, ptr %9, i64 %indvars.iv26
  store i32 2147483647, ptr %16, align 4, !tbaa !5
  br label %18

17:                                               ; preds = %30
  %indvars.iv.next27 = add nuw nsw i64 %indvars.iv26, 1
  %exitcond30.not = icmp eq i64 %indvars.iv.next27, %7
  br i1 %exitcond30.not, label %._crit_edge, label %.lr.ph, !llvm.loop !9

18:                                               ; preds = %.lr.ph, %30
  %indvars.iv = phi i64 [ 0, %.lr.ph ], [ %indvars.iv.next, %30 ]
  %19 = getelementptr inbounds i32, ptr %0, i64 %indvars.iv
  %20 = load i32, ptr %19, align 4, !tbaa !5
  %21 = trunc nuw nsw i64 %indvars.iv to i32
  %22 = add nsw i32 %20, %21
  %23 = sext i32 %22 to i64
  %.not = icmp sgt i64 %indvars.iv26, %23
  br i1 %.not, label %30, label %24

24:                                               ; preds = %18
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %3) #4
  %25 = getelementptr inbounds i32, ptr %9, i64 %indvars.iv
  %26 = load i32, ptr %25, align 4, !tbaa !5
  %27 = add nsw i32 %26, 1
  store i32 %27, ptr %3, align 4, !tbaa !5
  %28 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3minIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4) %16, ptr noundef nonnull align 4 dereferenceable(4) %3)
  %29 = load i32, ptr %28, align 4, !tbaa !5
  store i32 %29, ptr %16, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %3) #4
  br label %30

30:                                               ; preds = %18, %24
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %exitcond.not = icmp eq i64 %indvars.iv.next, %indvars.iv26
  br i1 %exitcond.not, label %17, label %18, !llvm.loop !11

31:                                               ; preds = %2, %._crit_edge
  %.020 = phi i32 [ %spec.select, %._crit_edge ], [ -1, %2 ]
  ret i32 %.020
}

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn
declare ptr @llvm.stacksave.p0() #1

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3minIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #3

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn
declare void @llvm.stackrestore.p0(ptr) #1

attributes #0 = { mustprogress 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 = { mustprogress nocallback nofree nosync nounwind willreturn }
attributes #2 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #3 = { inlinehint mustprogress 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 #4 = { 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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}
!11 = distinct !{!11, !10}


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