; LLVM IR from codemistic/Data-Structures-and-Algorithms :: CPP/Dynamic Programming/Rod-Cutting.ll (Z10cutRodUtilRSt6vectorIiSaIiEEiiRS_IS1_SaIS1_EE)

; 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 @_Z10cutRodUtilRSt6vectorIiSaIiEEiiRS_IS1_SaIS1_EE(ptr noundef nonnull align 8 dereferenceable(24) %0, i32 noundef %1, i32 noundef %2, ptr noundef nonnull align 8 dereferenceable(24) %3) #0 {
  %5 = alloca i32, align 4
  %6 = alloca ptr, align 8
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  %9 = alloca ptr, align 8
  %10 = alloca i32, align 4
  %11 = alloca i32, align 4
  %12 = alloca i32, align 4
  store ptr %0, ptr %6, align 8, !tbaa !5
  store i32 %1, ptr %7, align 4, !tbaa !9
  store i32 %2, ptr %8, align 4, !tbaa !9
  store ptr %3, ptr %9, align 8, !tbaa !5
  %13 = load i32, ptr %7, align 4, !tbaa !9
  %14 = icmp eq i32 %13, 0
  br i1 %14, label %15, label %21

15:                                               ; preds = %4
  %16 = load i32, ptr %8, align 4, !tbaa !9
  %17 = load ptr, ptr %6, align 8, !tbaa !5
  %18 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %17, i64 noundef 0) #4
  %19 = load i32, ptr %18, align 4, !tbaa !9
  %20 = mul nsw i32 %16, %19
  store i32 %20, ptr %5, align 4
  br label %77

21:                                               ; preds = %4
  %22 = load ptr, ptr %9, align 8, !tbaa !5
  %23 = load i32, ptr %7, align 4, !tbaa !9
  %24 = sext i32 %23 to i64
  %25 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %22, i64 noundef %24) #4
  %26 = load i32, ptr %8, align 4, !tbaa !9
  %27 = sext i32 %26 to i64
  %28 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %25, i64 noundef %27) #4
  %29 = load i32, ptr %28, align 4, !tbaa !9
  %30 = icmp ne i32 %29, -1
  br i1 %30, label %31, label %40

31:                                               ; preds = %21
  %32 = load ptr, ptr %9, align 8, !tbaa !5
  %33 = load i32, ptr %7, align 4, !tbaa !9
  %34 = sext i32 %33 to i64
  %35 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %32, i64 noundef %34) #4
  %36 = load i32, ptr %8, align 4, !tbaa !9
  %37 = sext i32 %36 to i64
  %38 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %35, i64 noundef %37) #4
  %39 = load i32, ptr %38, align 4, !tbaa !9
  store i32 %39, ptr %5, align 4
  br label %77

40:                                               ; preds = %21
  call void @llvm.lifetime.start.p0(i64 4, ptr %10) #4
  %41 = load ptr, ptr %6, align 8, !tbaa !5
  %42 = load i32, ptr %7, align 4, !tbaa !9
  %43 = sub nsw i32 %42, 1
  %44 = load i32, ptr %8, align 4, !tbaa !9
  %45 = load ptr, ptr %9, align 8, !tbaa !5
  %46 = call noundef i32 @_Z10cutRodUtilRSt6vectorIiSaIiEEiiRS_IS1_SaIS1_EE(ptr noundef nonnull align 8 dereferenceable(24) %41, i32 noundef %43, i32 noundef %44, ptr noundef nonnull align 8 dereferenceable(24) %45)
  %47 = add nsw i32 0, %46
  store i32 %47, ptr %10, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %11) #4
  store i32 -2147483648, ptr %11, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %12) #4
  %48 = load i32, ptr %7, align 4, !tbaa !9
  %49 = add nsw i32 %48, 1
  store i32 %49, ptr %12, align 4, !tbaa !9
  %50 = load i32, ptr %12, align 4, !tbaa !9
  %51 = load i32, ptr %8, align 4, !tbaa !9
  %52 = icmp sle i32 %50, %51
  br i1 %52, label %53, label %67

53:                                               ; preds = %40
  %54 = load ptr, ptr %6, align 8, !tbaa !5
  %55 = load i32, ptr %7, align 4, !tbaa !9
  %56 = sext i32 %55 to i64
  %57 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %54, i64 noundef %56) #4
  %58 = load i32, ptr %57, align 4, !tbaa !9
  %59 = load ptr, ptr %6, align 8, !tbaa !5
  %60 = load i32, ptr %7, align 4, !tbaa !9
  %61 = load i32, ptr %8, align 4, !tbaa !9
  %62 = load i32, ptr %12, align 4, !tbaa !9
  %63 = sub nsw i32 %61, %62
  %64 = load ptr, ptr %9, align 8, !tbaa !5
  %65 = call noundef i32 @_Z10cutRodUtilRSt6vectorIiSaIiEEiiRS_IS1_SaIS1_EE(ptr noundef nonnull align 8 dereferenceable(24) %59, i32 noundef %60, i32 noundef %63, ptr noundef nonnull align 8 dereferenceable(24) %64)
  %66 = add nsw i32 %58, %65
  store i32 %66, ptr %11, align 4, !tbaa !9
  br label %67

67:                                               ; preds = %53, %40
  %68 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3maxIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4) %10, ptr noundef nonnull align 4 dereferenceable(4) %11)
  %69 = load i32, ptr %68, align 4, !tbaa !9
  %70 = load ptr, ptr %9, align 8, !tbaa !5
  %71 = load i32, ptr %7, align 4, !tbaa !9
  %72 = sext i32 %71 to i64
  %73 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %70, i64 noundef %72) #4
  %74 = load i32, ptr %8, align 4, !tbaa !9
  %75 = sext i32 %74 to i64
  %76 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %73, i64 noundef %75) #4
  store i32 %69, ptr %76, align 4, !tbaa !9
  store i32 %69, ptr %5, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %12) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #4
  br label %77

77:                                               ; preds = %67, %31, %15
  %78 = load i32, ptr %5, align 4
  ret i32 %78
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #1 align 2

; 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 @_ZSt3maxIiERKT_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

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 = { 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 #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}


; 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 i32 @_Z10cutRodUtilRSt6vectorIiSaIiEEiiRS_IS1_SaIS1_EE(ptr noundef nonnull align 8 dereferenceable(24) %0, i32 noundef %1, i32 noundef %2, ptr noundef nonnull align 8 dereferenceable(24) %3) local_unnamed_addr #0 {
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = icmp eq i32 %1, 0
  br i1 %7, label %8, label %12

8:                                                ; preds = %4
  %9 = tail call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %0, i64 noundef 0) #3
  %10 = load i32, ptr %9, align 4, !tbaa !5
  %11 = mul nsw i32 %10, %2
  br label %36

12:                                               ; preds = %4
  %13 = sext i32 %1 to i64
  %14 = tail call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %13) #3
  %15 = sext i32 %2 to i64
  %16 = tail call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %14, i64 noundef %15) #3
  %17 = load i32, ptr %16, align 4, !tbaa !5
  %.not = icmp eq i32 %17, -1
  br i1 %.not, label %22, label %18

18:                                               ; preds = %12
  %19 = tail call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %13) #3
  %20 = tail call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %19, i64 noundef %15) #3
  %21 = load i32, ptr %20, align 4, !tbaa !5
  br label %36

22:                                               ; preds = %12
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %5) #3
  %23 = add nsw i32 %1, -1
  %24 = tail call noundef i32 @_Z10cutRodUtilRSt6vectorIiSaIiEEiiRS_IS1_SaIS1_EE(ptr noundef nonnull align 8 dereferenceable(24) %0, i32 noundef %23, i32 noundef %2, ptr noundef nonnull align 8 dereferenceable(24) %3)
  store i32 %24, ptr %5, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %6) #3
  store i32 -2147483648, ptr %6, align 4, !tbaa !5
  %.not29.not = icmp slt i32 %1, %2
  br i1 %.not29.not, label %25, label %31

25:                                               ; preds = %22
  %.neg = xor i32 %1, -1
  %26 = tail call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %0, i64 noundef %13) #3
  %27 = load i32, ptr %26, align 4, !tbaa !5
  %28 = add i32 %.neg, %2
  %29 = tail call noundef i32 @_Z10cutRodUtilRSt6vectorIiSaIiEEiiRS_IS1_SaIS1_EE(ptr noundef nonnull align 8 dereferenceable(24) %0, i32 noundef %1, i32 noundef %28, ptr noundef nonnull align 8 dereferenceable(24) %3)
  %30 = add nsw i32 %29, %27
  store i32 %30, ptr %6, align 4, !tbaa !5
  br label %31

31:                                               ; preds = %25, %22
  %32 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3maxIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4) %5, ptr noundef nonnull align 4 dereferenceable(4) %6)
  %33 = load i32, ptr %32, align 4, !tbaa !5
  %34 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %13) #3
  %35 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %34, i64 noundef %15) #3
  store i32 %33, ptr %35, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %6) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %5) #3
  br label %36

36:                                               ; preds = %31, %18, %8
  %.0 = phi i32 [ %11, %8 ], [ %21, %18 ], [ %33, %31 ]
  ret i32 %.0
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3maxIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #2

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #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 memory(argmem: readwrite) }
attributes #2 = { 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 #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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,ReassociatePass,SROAPass,TailCallElimPass