; LLVM IR from xirc/cp-algorithm :: atcoder/abc195/B/main.ll (Z3maxiii)

; 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: 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 nounwind uwtable
define dso_local noundef i32 @_Z3maxiii(i32 noundef %0, i32 noundef %1, i32 noundef %2) #1 {
  %4 = alloca i32, align 4
  %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 %5, align 4, !tbaa !5
  store i32 %1, ptr %6, align 4, !tbaa !5
  store i32 %2, ptr %7, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #2
  store i32 1000000, ptr %8, align 4, !tbaa !5
  br label %10

10:                                               ; preds = %29, %3
  %11 = load i32, ptr %8, align 4, !tbaa !5
  %12 = icmp sge i32 %11, 1
  br i1 %12, label %14, label %13

13:                                               ; preds = %10
  store i32 2, ptr %9, align 4
  br label %32

14:                                               ; preds = %10
  %15 = load i32, ptr %5, align 4, !tbaa !5
  %16 = load i32, ptr %8, align 4, !tbaa !5
  %17 = mul nsw i32 %15, %16
  %18 = load i32, ptr %7, align 4, !tbaa !5
  %19 = icmp sle i32 %17, %18
  br i1 %19, label %20, label %28

20:                                               ; preds = %14
  %21 = load i32, ptr %6, align 4, !tbaa !5
  %22 = load i32, ptr %8, align 4, !tbaa !5
  %23 = mul nsw i32 %21, %22
  %24 = load i32, ptr %7, align 4, !tbaa !5
  %25 = icmp sge i32 %23, %24
  br i1 %25, label %26, label %28

26:                                               ; preds = %20
  %27 = load i32, ptr %8, align 4, !tbaa !5
  store i32 %27, ptr %4, align 4
  store i32 1, ptr %9, align 4
  br label %32

28:                                               ; preds = %20, %14
  br label %29

29:                                               ; preds = %28
  %30 = load i32, ptr %8, align 4, !tbaa !5
  %31 = add nsw i32 %30, -1
  store i32 %31, ptr %8, align 4, !tbaa !5
  br label %10, !llvm.loop !9

32:                                               ; preds = %26, %13
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #2
  %33 = load i32, ptr %9, align 4
  switch i32 %33, label %37 [
    i32 2, label %34
    i32 1, label %35
  ]

34:                                               ; preds = %32
  store i32 0, ptr %4, align 4
  br label %35

35:                                               ; preds = %34, %32
  %36 = load i32, ptr %4, align 4
  ret i32 %36

37:                                               ; preds = %32
  unreachable
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = { 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"}


; 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 i32 @_Z3maxiii(i32 noundef %0, i32 noundef %1, i32 noundef %2) local_unnamed_addr #0 {
  br label %4

4:                                                ; preds = %11, %3
  %.01115 = phi i32 [ 1000000, %3 ], [ %12, %11 ]
  %5 = mul nsw i32 %.01115, %0
  %.not = icmp sgt i32 %5, %2
  %6 = mul nsw i32 %.01115, %1
  %.not14 = icmp slt i32 %6, %2
  %or.cond = select i1 %.not, i1 true, i1 %.not14
  br i1 %or.cond, label %7, label %14

7:                                                ; preds = %4
  %8 = add nsw i32 %.01115, -1
  %9 = mul nsw i32 %8, %0
  %.not.1 = icmp sgt i32 %9, %2
  %10 = mul nsw i32 %8, %1
  %.not14.1 = icmp slt i32 %10, %2
  %or.cond.1 = select i1 %.not.1, i1 true, i1 %.not14.1
  br i1 %or.cond.1, label %11, label %14

11:                                               ; preds = %7
  %12 = add nsw i32 %.01115, -2
  %13 = icmp eq i32 %8, 1
  br i1 %13, label %14, label %4, !llvm.loop !5

14:                                               ; preds = %11, %7, %4
  %spec.select = phi i32 [ %.01115, %4 ], [ %8, %7 ], [ 0, %11 ]
  ret i32 %spec.select
}

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)"}
!5 = distinct !{!5, !6}
!6 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: CorrelatedValuePropagationPass,GlobalOptPass,IPSCCPPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,LoopRotatePass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass