; LLVM IR from xtaci/algorithms :: src (random_select_demo)

; 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"

@.str = external hidden unnamed_addr constant [14 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [44 x i8], align 1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #0 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca [10 x i32], align 16
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  store i32 0, ptr %1, align 4
  %7 = call i64 @time(ptr noundef null) #5
  %8 = trunc i64 %7 to i32
  call void @srand(i32 noundef %8) #5
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #5
  store i32 10, ptr %2, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 40, ptr %3) #5
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #5
  store i32 0, ptr %4, align 4, !tbaa !5
  store i32 0, ptr %4, align 4, !tbaa !5
  br label %9

9:                                                ; preds = %18, %0
  %10 = load i32, ptr %4, align 4, !tbaa !5
  %11 = icmp slt i32 %10, 10
  br i1 %11, label %12, label %21

12:                                               ; preds = %9
  %13 = call i32 @rand() #5
  %14 = srem i32 %13, 100
  %15 = load i32, ptr %4, align 4, !tbaa !5
  %16 = sext i32 %15 to i64
  %17 = getelementptr inbounds [10 x i32], ptr %3, i64 0, i64 %16
  store i32 %14, ptr %17, align 4, !tbaa !5
  br label %18

18:                                               ; preds = %12
  %19 = load i32, ptr %4, align 4, !tbaa !5
  %20 = add nsw i32 %19, 1
  store i32 %20, ptr %4, align 4, !tbaa !5
  br label %9, !llvm.loop !9

21:                                               ; preds = %9
  %22 = call i32 (ptr, ...) @printf(ptr noundef @.str)
  call void @_ZN3algL9printlistIA10_iEEvRT_i(ptr noundef nonnull align 4 dereferenceable(40) %3, i32 noundef 10)
  %23 = call i64 @time(ptr noundef null) #5
  %24 = trunc i64 %23 to i32
  call void @srand(i32 noundef %24) #5
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #5
  %25 = call i32 @rand() #5
  %26 = srem i32 %25, 10
  %27 = add nsw i32 %26, 1
  store i32 %27, ptr %5, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #5
  %28 = getelementptr inbounds [10 x i32], ptr %3, i64 0, i64 0
  %29 = load i32, ptr %5, align 4, !tbaa !5
  %30 = call noundef i32 @_ZN3algL13random_selectIiEEiPT_iii(ptr noundef %28, i32 noundef 0, i32 noundef 9, i32 noundef %29)
  store i32 %30, ptr %6, align 4, !tbaa !5
  %31 = load i32, ptr %5, align 4, !tbaa !5
  %32 = load i32, ptr %6, align 4, !tbaa !5
  %33 = sext i32 %32 to i64
  %34 = getelementptr inbounds [10 x i32], ptr %3, i64 0, i64 %33
  %35 = load i32, ptr %34, align 4, !tbaa !5
  %36 = call i32 (ptr, ...) @printf(ptr noundef @.str.1, i32 noundef %31, i32 noundef %35)
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #5
  call void @llvm.lifetime.end.p0(i64 40, ptr %3) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #5
  ret i32 0
}

; Function Attrs: nounwind
declare void @srand(i32 noundef) #1

; Function Attrs: nounwind
declare i64 @time(ptr noundef) #1

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

; Function Attrs: nounwind
declare i32 @rand() #1

declare i32 @printf(ptr noundef, ...) #3

; Function Attrs: mustprogress uwtable
declare hidden void @_ZN3algL9printlistIA10_iEEvRT_i(ptr noundef nonnull align 4 dereferenceable(40), i32 noundef) #4

; Function Attrs: mustprogress uwtable
declare hidden noundef i32 @_ZN3algL13random_selectIiEEiPT_iii(ptr noundef, i32 noundef, i32 noundef, i32 noundef) #4

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

attributes #0 = { mustprogress norecurse 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 = { nounwind "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 = { "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 = { 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 #5 = { 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"

@.str = external hidden unnamed_addr constant [14 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [44 x i8], align 1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #0 {
  %1 = alloca [10 x i32], align 16
  %2 = tail call i64 @time(ptr noundef null) #5
  %3 = trunc i64 %2 to i32
  tail call void @srand(i32 noundef %3) #5
  call void @llvm.lifetime.start.p0(i64 40, ptr nonnull %1) #5
  %4 = tail call i32 @rand() #5
  %5 = srem i32 %4, 100
  store i32 %5, ptr %1, align 16, !tbaa !5
  %6 = tail call i32 @rand() #5
  %7 = srem i32 %6, 100
  %8 = getelementptr inbounds i8, ptr %1, i64 4
  store i32 %7, ptr %8, align 4, !tbaa !5
  %9 = tail call i32 @rand() #5
  %10 = srem i32 %9, 100
  %11 = getelementptr inbounds i8, ptr %1, i64 8
  store i32 %10, ptr %11, align 8, !tbaa !5
  %12 = tail call i32 @rand() #5
  %13 = srem i32 %12, 100
  %14 = getelementptr inbounds i8, ptr %1, i64 12
  store i32 %13, ptr %14, align 4, !tbaa !5
  %15 = tail call i32 @rand() #5
  %16 = srem i32 %15, 100
  %17 = getelementptr inbounds i8, ptr %1, i64 16
  store i32 %16, ptr %17, align 16, !tbaa !5
  %18 = tail call i32 @rand() #5
  %19 = srem i32 %18, 100
  %20 = getelementptr inbounds i8, ptr %1, i64 20
  store i32 %19, ptr %20, align 4, !tbaa !5
  %21 = tail call i32 @rand() #5
  %22 = srem i32 %21, 100
  %23 = getelementptr inbounds i8, ptr %1, i64 24
  store i32 %22, ptr %23, align 8, !tbaa !5
  %24 = tail call i32 @rand() #5
  %25 = srem i32 %24, 100
  %26 = getelementptr inbounds i8, ptr %1, i64 28
  store i32 %25, ptr %26, align 4, !tbaa !5
  %27 = tail call i32 @rand() #5
  %28 = srem i32 %27, 100
  %29 = getelementptr inbounds i8, ptr %1, i64 32
  store i32 %28, ptr %29, align 16, !tbaa !5
  %30 = tail call i32 @rand() #5
  %31 = srem i32 %30, 100
  %32 = getelementptr inbounds i8, ptr %1, i64 36
  store i32 %31, ptr %32, align 4, !tbaa !5
  %33 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str)
  call void @_ZN3algL9printlistIA10_iEEvRT_i(ptr noundef nonnull align 4 dereferenceable(40) %1, i32 noundef 10)
  %34 = call i64 @time(ptr noundef null) #5
  %35 = trunc i64 %34 to i32
  call void @srand(i32 noundef %35) #5
  %36 = call i32 @rand() #5
  %37 = srem i32 %36, 10
  %38 = add nsw i32 %37, 1
  %39 = call noundef i32 @_ZN3algL13random_selectIiEEiPT_iii(ptr noundef nonnull %1, i32 noundef 0, i32 noundef 9, i32 noundef %38)
  %40 = sext i32 %39 to i64
  %41 = getelementptr inbounds [10 x i32], ptr %1, i64 0, i64 %40
  %42 = load i32, ptr %41, align 4, !tbaa !5
  %43 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.1, i32 noundef %38, i32 noundef %42)
  call void @llvm.lifetime.end.p0(i64 40, ptr nonnull %1) #5
  ret i32 0
}

; Function Attrs: nounwind
declare void @srand(i32 noundef) local_unnamed_addr #1

; Function Attrs: nounwind
declare i64 @time(ptr noundef) local_unnamed_addr #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: nounwind
declare i32 @rand() local_unnamed_addr #1

; Function Attrs: nofree nounwind
declare noundef i32 @printf(ptr nocapture noundef readonly, ...) local_unnamed_addr #3

; Function Attrs: mustprogress uwtable
declare hidden void @_ZN3algL9printlistIA10_iEEvRT_i(ptr noundef nonnull align 4 dereferenceable(40), i32 noundef) local_unnamed_addr #4

; Function Attrs: mustprogress uwtable
declare hidden noundef i32 @_ZN3algL13random_selectIiEEiPT_iii(ptr noundef, i32 noundef, i32 noundef, i32 noundef) local_unnamed_addr #4

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

attributes #0 = { mustprogress norecurse 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 = { nounwind "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 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #3 = { nofree nounwind "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 = { 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 #5 = { 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,GVNPass,GlobalOptPass,IndVarSimplifyPass,InferAlignmentPass,InferFunctionAttrsPass,InstCombinePass,LoopRotatePass,SROAPass,SimplifyCFGPass,TailCallElimPass