; LLVM IR from AlgoGenesis/C :: Deadlock avoidance algorithm/Wait and Die Algorithm (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.Transaction = type { i32, i32 }

@transactions = external dso_local global [5 x %struct.Transaction], align 16

; Function Attrs: nounwind uwtable
define dso_local void @initialize_transactions() #0 {
  %1 = alloca i32, align 4
  %2 = call i64 @time(ptr noundef null) #3
  %3 = trunc i64 %2 to i32
  call void @srand(i32 noundef %3) #3
  call void @llvm.lifetime.start.p0(i64 4, ptr %1) #3
  store i32 0, ptr %1, align 4, !tbaa !5
  br label %4

4:                                                ; preds = %21, %0
  %5 = load i32, ptr %1, align 4, !tbaa !5
  %6 = icmp slt i32 %5, 5
  br i1 %6, label %8, label %7

7:                                                ; preds = %4
  call void @llvm.lifetime.end.p0(i64 4, ptr %1) #3
  br label %24

8:                                                ; preds = %4
  %9 = load i32, ptr %1, align 4, !tbaa !5
  %10 = add nsw i32 %9, 1
  %11 = load i32, ptr %1, align 4, !tbaa !5
  %12 = sext i32 %11 to i64
  %13 = getelementptr inbounds [5 x %struct.Transaction], ptr @transactions, i64 0, i64 %12
  %14 = getelementptr inbounds %struct.Transaction, ptr %13, i32 0, i32 0
  store i32 %10, ptr %14, align 8, !tbaa !9
  %15 = call i32 @rand() #3
  %16 = srem i32 %15, 100
  %17 = load i32, ptr %1, align 4, !tbaa !5
  %18 = sext i32 %17 to i64
  %19 = getelementptr inbounds [5 x %struct.Transaction], ptr @transactions, i64 0, i64 %18
  %20 = getelementptr inbounds %struct.Transaction, ptr %19, i32 0, i32 1
  store i32 %16, ptr %20, align 4, !tbaa !11
  br label %21

21:                                               ; preds = %8
  %22 = load i32, ptr %1, align 4, !tbaa !5
  %23 = add nsw i32 %22, 1
  store i32 %23, ptr %1, align 4, !tbaa !5
  br label %4, !llvm.loop !12

24:                                               ; preds = %7
  ret void
}

; 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

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

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 = { 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 = { 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}
!11 = !{!10, !6, i64 4}
!12 = distinct !{!12, !13}
!13 = !{!"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.Transaction = type { i32, i32 }

@transactions = external dso_local local_unnamed_addr global [5 x %struct.Transaction], align 16

; Function Attrs: nounwind uwtable
define dso_local void @initialize_transactions() local_unnamed_addr #0 {
  %1 = tail call i64 @time(ptr noundef null) #2
  %2 = trunc i64 %1 to i32
  tail call void @srand(i32 noundef %2) #2
  store i32 1, ptr @transactions, align 16, !tbaa !5
  %3 = tail call i32 @rand() #2
  %4 = srem i32 %3, 100
  store i32 %4, ptr getelementptr inbounds (i8, ptr @transactions, i64 4), align 4, !tbaa !10
  store i32 2, ptr getelementptr inbounds (i8, ptr @transactions, i64 8), align 8, !tbaa !5
  %5 = tail call i32 @rand() #2
  %6 = srem i32 %5, 100
  store i32 %6, ptr getelementptr inbounds (i8, ptr @transactions, i64 12), align 4, !tbaa !10
  store i32 3, ptr getelementptr inbounds (i8, ptr @transactions, i64 16), align 16, !tbaa !5
  %7 = tail call i32 @rand() #2
  %8 = srem i32 %7, 100
  store i32 %8, ptr getelementptr inbounds (i8, ptr @transactions, i64 20), align 4, !tbaa !10
  store i32 4, ptr getelementptr inbounds (i8, ptr @transactions, i64 24), align 8, !tbaa !5
  %9 = tail call i32 @rand() #2
  %10 = srem i32 %9, 100
  store i32 %10, ptr getelementptr inbounds (i8, ptr @transactions, i64 28), align 4, !tbaa !10
  store i32 5, ptr getelementptr inbounds (i8, ptr @transactions, i64 32), align 16, !tbaa !5
  %11 = tail call i32 @rand() #2
  %12 = srem i32 %11, 100
  store i32 %12, ptr getelementptr inbounds (i8, ptr @transactions, i64 36), align 4, !tbaa !10
  ret void
}

; 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: nounwind
declare i32 @rand() local_unnamed_addr #1

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 = { 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 = { 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 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!6, !7, i64 4}


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