; LLVM IR from FOSS-UCSC/FOSSALGO :: algorithms/ar-cochprb/c (coin_change_problem)

; 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"

@cont = external dso_local global i32, align 4
@__const.main.arr = external hidden unnamed_addr constant [3 x i32], align 4
@.str = external hidden unnamed_addr constant [27 x i8], align 1

; Function Attrs: nounwind uwtable
declare dso_local void @coin(i32 noundef, i32 noundef, i32 noundef, ptr noundef, i32 noundef) #0

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

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

; Function Attrs: nounwind uwtable
define dso_local i32 @main() #0 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca [3 x i32], align 4
  %6 = alloca i32, align 4
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #4
  store i32 8, ptr %2, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #4
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #4
  store i32 0, ptr %4, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 12, ptr %5) #4
  call void @llvm.memcpy.p0.p0.i64(ptr align 4 %5, ptr align 4 @__const.main.arr, i64 12, i1 false)
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #4
  store i32 3, ptr %6, align 4, !tbaa !5
  store i32 0, ptr %3, align 4, !tbaa !5
  br label %7

7:                                                ; preds = %17, %0
  %8 = load i32, ptr %3, align 4, !tbaa !5
  %9 = load i32, ptr %6, align 4, !tbaa !5
  %10 = icmp slt i32 %8, %9
  br i1 %10, label %11, label %20

11:                                               ; preds = %7
  %12 = load i32, ptr %2, align 4, !tbaa !5
  %13 = load i32, ptr %3, align 4, !tbaa !5
  %14 = load i32, ptr %4, align 4, !tbaa !5
  %15 = getelementptr inbounds [3 x i32], ptr %5, i64 0, i64 0
  %16 = load i32, ptr %6, align 4, !tbaa !5
  call void @coin(i32 noundef %12, i32 noundef %13, i32 noundef %14, ptr noundef %15, i32 noundef %16)
  br label %17

17:                                               ; preds = %11
  %18 = load i32, ptr %3, align 4, !tbaa !5
  %19 = add nsw i32 %18, 1
  store i32 %19, ptr %3, align 4, !tbaa !5
  br label %7, !llvm.loop !9

20:                                               ; preds = %7
  %21 = load i32, ptr @cont, align 4, !tbaa !5
  %22 = call i32 (ptr, ...) @printf(ptr noundef @.str, i32 noundef %21)
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #4
  call void @llvm.lifetime.end.p0(i64 12, ptr %5) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #4
  ret i32 0
}

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #2

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

attributes #0 = { 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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { nocallback nofree 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 = { 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/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"

@cont = external dso_local local_unnamed_addr global i32, align 4
@__const.main.arr = external hidden unnamed_addr constant [3 x i32], align 4
@.str = external hidden unnamed_addr constant [27 x i8], align 1

; Function Attrs: nounwind uwtable
declare dso_local void @coin(i32 noundef, i32 noundef, i32 noundef, ptr noundef, i32 noundef) local_unnamed_addr #0

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

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

; Function Attrs: nounwind uwtable
define dso_local noundef i32 @main() local_unnamed_addr #0 {
  %1 = alloca [3 x i32], align 4
  call void @llvm.lifetime.start.p0(i64 12, ptr nonnull %1) #4
  call void @llvm.memcpy.p0.p0.i64(ptr noundef nonnull align 4 dereferenceable(12) %1, ptr noundef nonnull align 4 dereferenceable(12) @__const.main.arr, i64 12, i1 false)
  call void @coin(i32 noundef 8, i32 noundef 0, i32 noundef 0, ptr noundef nonnull %1, i32 noundef 3)
  call void @coin(i32 noundef 8, i32 noundef 1, i32 noundef 0, ptr noundef nonnull %1, i32 noundef 3)
  call void @coin(i32 noundef 8, i32 noundef 2, i32 noundef 0, ptr noundef nonnull %1, i32 noundef 3)
  %2 = load i32, ptr @cont, align 4, !tbaa !5
  %3 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str, i32 noundef %2)
  call void @llvm.lifetime.end.p0(i64 12, ptr nonnull %1) #4
  ret i32 0
}

; Function Attrs: mustprogress nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #2

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

attributes #0 = { 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 = { mustprogress nocallback nofree 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 = { 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/C++ TBAA"}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,LoopRotatePass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass