; LLVM IR from pranjalwalia/Competitive-programming :: CodeChef/contests/LONG/JAN20/breaking_bricks.ll (Z4funciiii)

; 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 nounwind uwtable
define dso_local noundef i32 @_Z4funciiii(i32 noundef %0, i32 noundef %1, i32 noundef %2, i32 noundef %3) #0 {
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  %9 = alloca i32, align 4
  store i32 %0, ptr %6, align 4, !tbaa !5
  store i32 %1, ptr %7, align 4, !tbaa !5
  store i32 %2, ptr %8, align 4, !tbaa !5
  store i32 %3, ptr %9, align 4, !tbaa !5
  %10 = load i32, ptr %6, align 4, !tbaa !5
  %11 = load i32, ptr %7, align 4, !tbaa !5
  %12 = add nsw i32 %10, %11
  %13 = load i32, ptr %8, align 4, !tbaa !5
  %14 = add nsw i32 %12, %13
  %15 = load i32, ptr %9, align 4, !tbaa !5
  %16 = icmp sle i32 %14, %15
  br i1 %16, label %17, label %18

17:                                               ; preds = %4
  store i32 1, ptr %5, align 4
  br label %45

18:                                               ; preds = %4
  %19 = load i32, ptr %6, align 4, !tbaa !5
  %20 = load i32, ptr %7, align 4, !tbaa !5
  %21 = add nsw i32 %19, %20
  %22 = load i32, ptr %9, align 4, !tbaa !5
  %23 = icmp sle i32 %21, %22
  br i1 %23, label %30, label %24

24:                                               ; preds = %18
  %25 = load i32, ptr %7, align 4, !tbaa !5
  %26 = load i32, ptr %8, align 4, !tbaa !5
  %27 = add nsw i32 %25, %26
  %28 = load i32, ptr %9, align 4, !tbaa !5
  %29 = icmp sle i32 %27, %28
  br i1 %29, label %30, label %31

30:                                               ; preds = %24, %18
  store i32 2, ptr %5, align 4
  br label %45

31:                                               ; preds = %24
  %32 = load i32, ptr %6, align 4, !tbaa !5
  %33 = load i32, ptr %7, align 4, !tbaa !5
  %34 = add nsw i32 %32, %33
  %35 = load i32, ptr %9, align 4, !tbaa !5
  %36 = icmp sgt i32 %34, %35
  br i1 %36, label %37, label %44

37:                                               ; preds = %31
  %38 = load i32, ptr %7, align 4, !tbaa !5
  %39 = load i32, ptr %8, align 4, !tbaa !5
  %40 = add nsw i32 %38, %39
  %41 = load i32, ptr %9, align 4, !tbaa !5
  %42 = icmp sgt i32 %40, %41
  br i1 %42, label %43, label %44

43:                                               ; preds = %37
  store i32 3, ptr %5, align 4
  br label %45

44:                                               ; preds = %37, %31
  unreachable

45:                                               ; preds = %43, %30, %17
  %46 = load i32, ptr %5, align 4
  ret i32 %46
}

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" }

!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"}


; 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 nofree norecurse nosync nounwind willreturn memory(none) uwtable
define dso_local noundef range(i32 1, 4) i32 @_Z4funciiii(i32 noundef %0, i32 noundef %1, i32 noundef %2, i32 noundef %3) local_unnamed_addr #0 {
  %5 = add nsw i32 %1, %0
  %6 = add nsw i32 %5, %2
  %.not = icmp sgt i32 %6, %3
  br i1 %.not, label %7, label %9

7:                                                ; preds = %4
  %.not19 = icmp sgt i32 %5, %3
  %8 = add nsw i32 %2, %1
  %.not20 = icmp sgt i32 %8, %3
  %or.cond = select i1 %.not19, i1 %.not20, i1 false
  %spec.select = select i1 %or.cond, i32 3, i32 2
  br label %9

9:                                                ; preds = %7, %4
  %.0 = phi i32 [ 1, %4 ], [ %spec.select, %7 ]
  ret i32 %.0
}

attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn memory(none) 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)"}


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