; LLVM IR from AlgoGenesis/C :: Miscellaneous Algorithms/Weighted Fair Queueing (WFQ) (program)

; 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"

%struct.Process = type { i32, i32, i32, float }

@__const.main.processes = external hidden unnamed_addr constant [3 x %struct.Process], align 16
@.str.1 = external hidden unnamed_addr constant [51 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [28 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [34 x i8], align 1

; Function Attrs: nounwind uwtable
declare dso_local void @weightedFairQueueing(ptr noundef, i32 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

declare i32 @printf(ptr noundef, ...) #2

; 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 [3 x %struct.Process], align 16
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 48, ptr %2) #4
  call void @llvm.memcpy.p0.p0.i64(ptr align 16 %2, ptr align 16 @__const.main.processes, i64 48, i1 false)
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #4
  store i32 2, ptr %3, align 4, !tbaa !5
  %5 = call i32 (ptr, ...) @printf(ptr noundef @.str.1)
  %6 = getelementptr inbounds [3 x %struct.Process], ptr %2, i64 0, i64 0
  %7 = load i32, ptr %3, align 4, !tbaa !5
  call void @weightedFairQueueing(ptr noundef %6, i32 noundef 3, i32 noundef %7)
  %8 = call i32 (ptr, ...) @printf(ptr noundef @.str.2)
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #4
  store i32 0, ptr %4, align 4, !tbaa !5
  br label %9

9:                                                ; preds = %26, %0
  %10 = load i32, ptr %4, align 4, !tbaa !5
  %11 = icmp slt i32 %10, 3
  br i1 %11, label %13, label %12

12:                                               ; preds = %9
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #4
  br label %29

13:                                               ; preds = %9
  %14 = load i32, ptr %4, align 4, !tbaa !5
  %15 = sext i32 %14 to i64
  %16 = getelementptr inbounds [3 x %struct.Process], ptr %2, i64 0, i64 %15
  %17 = getelementptr inbounds %struct.Process, ptr %16, i32 0, i32 0
  %18 = load i32, ptr %17, align 16, !tbaa !9
  %19 = load i32, ptr %4, align 4, !tbaa !5
  %20 = sext i32 %19 to i64
  %21 = getelementptr inbounds [3 x %struct.Process], ptr %2, i64 0, i64 %20
  %22 = getelementptr inbounds %struct.Process, ptr %21, i32 0, i32 3
  %23 = load float, ptr %22, align 4, !tbaa !12
  %24 = fpext float %23 to double
  %25 = call i32 (ptr, ...) @printf(ptr noundef @.str.3, i32 noundef %18, double noundef %24)
  br label %26

26:                                               ; preds = %13
  %27 = load i32, ptr %4, align 4, !tbaa !5
  %28 = add nsw i32 %27, 1
  store i32 %28, ptr %4, align 4, !tbaa !5
  br label %9, !llvm.loop !13

29:                                               ; preds = %12
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #4
  call void @llvm.lifetime.end.p0(i64 48, 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) #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 = { "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 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
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 = !{!10, !6, i64 0}
!10 = !{!"", !6, i64 0, !6, i64 4, !6, i64 8, !11, i64 12}
!11 = !{!"float", !7, i64 0}
!12 = !{!10, !11, i64 12}
!13 = distinct !{!13, !14}
!14 = !{!"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"

%struct.Process = type { i32, i32, i32, float }

@__const.main.processes = external hidden unnamed_addr constant [3 x %struct.Process], align 16
@.str.1 = external hidden unnamed_addr constant [51 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [28 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [34 x i8], align 1

; Function Attrs: nounwind uwtable
declare dso_local void @weightedFairQueueing(ptr noundef, i32 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: nofree nounwind
declare noundef i32 @printf(ptr nocapture noundef readonly, ...) 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

; Function Attrs: nounwind uwtable
define dso_local noundef i32 @main() local_unnamed_addr #0 {
  %1 = alloca [3 x %struct.Process], align 16
  call void @llvm.lifetime.start.p0(i64 48, ptr nonnull %1) #4
  call void @llvm.memcpy.p0.p0.i64(ptr noundef nonnull align 16 dereferenceable(48) %1, ptr noundef nonnull align 16 dereferenceable(48) @__const.main.processes, i64 48, i1 false)
  %2 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.1)
  call void @weightedFairQueueing(ptr noundef nonnull %1, i32 noundef 3, i32 noundef 2)
  %3 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.2)
  %4 = load i32, ptr %1, align 16, !tbaa !5
  %5 = getelementptr inbounds i8, ptr %1, i64 12
  %6 = load float, ptr %5, align 4, !tbaa !11
  %7 = fpext float %6 to double
  %8 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.3, i32 noundef %4, double noundef %7)
  %9 = getelementptr inbounds i8, ptr %1, i64 16
  %10 = load i32, ptr %9, align 16, !tbaa !5
  %11 = getelementptr inbounds i8, ptr %1, i64 28
  %12 = load float, ptr %11, align 4, !tbaa !11
  %13 = fpext float %12 to double
  %14 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.3, i32 noundef %10, double noundef %13)
  %15 = getelementptr inbounds i8, ptr %1, i64 32
  %16 = load i32, ptr %15, align 16, !tbaa !5
  %17 = getelementptr inbounds i8, ptr %1, i64 44
  %18 = load float, ptr %17, align 4, !tbaa !11
  %19 = fpext float %18 to double
  %20 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.3, i32 noundef %16, double noundef %19)
  call void @llvm.lifetime.end.p0(i64 48, 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) #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 = { 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 #3 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: readwrite) }
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, !7, i64 0}
!6 = !{!"", !7, i64 0, !7, i64 4, !7, i64 8, !10, i64 12}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"float", !8, i64 0}
!11 = !{!6, !10, i64 12}


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