; LLVM IR from rociodellasala/TP3_SO :: Kernel (heap)

; 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.s_heapPage = type { ptr, i32, i32, ptr }

@.str.13 = external hidden unnamed_addr constant [9 x i8], align 1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

declare ptr @allocPage(i32 noundef, ptr noundef) #1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nounwind uwtable
define dso_local ptr @createHeapPage() #2 {
  %1 = alloca i32, align 4
  %2 = alloca ptr, align 8
  %3 = alloca ptr, align 8
  %4 = alloca [60 x i8], align 16
  %5 = alloca %struct.s_heapPage, align 8
  %6 = alloca ptr, align 8
  call void @llvm.lifetime.start.p0(i64 4, ptr %1) #5
  call void @llvm.lifetime.start.p0(i64 8, ptr %2) #5
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #5
  %7 = call i32 (...) @getCurrentPid()
  %8 = call ptr @getProcessNameFromPid(i32 noundef %7)
  store ptr %8, ptr %3, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 60, ptr %4) #5
  call void @llvm.memset.p0.i64(ptr align 16 %4, i8 0, i64 60, i1 false)
  call void @llvm.lifetime.start.p0(i64 24, ptr %5) #5
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #5
  %9 = getelementptr inbounds [60 x i8], ptr %4, i64 0, i64 0
  %10 = load ptr, ptr %3, align 8, !tbaa !5
  %11 = call i32 (...) @getCurrentPid()
  call void @getNodeInfo(ptr noundef %9, ptr noundef %10, i32 noundef %11, ptr noundef @.str.13)
  %12 = getelementptr inbounds [60 x i8], ptr %4, i64 0, i64 0
  %13 = call ptr @allocPage(i32 noundef 4096, ptr noundef %12)
  %14 = getelementptr inbounds %struct.s_heapPage, ptr %5, i32 0, i32 0
  store ptr %13, ptr %14, align 8, !tbaa !9
  %15 = getelementptr inbounds %struct.s_heapPage, ptr %5, i32 0, i32 1
  store i32 0, ptr %15, align 8, !tbaa !12
  %16 = getelementptr inbounds %struct.s_heapPage, ptr %5, i32 0, i32 3
  store ptr null, ptr %16, align 8, !tbaa !13
  %17 = getelementptr inbounds %struct.s_heapPage, ptr %5, i32 0, i32 2
  store i32 4096, ptr %17, align 4, !tbaa !14
  store ptr %5, ptr %6, align 8, !tbaa !5
  store i32 24, ptr %1, align 4, !tbaa !15
  %18 = load i32, ptr %1, align 4, !tbaa !15
  %19 = call ptr @findAvaiableHeapKernelPage(i32 noundef %18)
  store ptr %19, ptr %2, align 8, !tbaa !5
  %20 = load ptr, ptr %2, align 8, !tbaa !5
  %21 = load ptr, ptr %6, align 8, !tbaa !5
  %22 = load i32, ptr %1, align 4, !tbaa !15
  %23 = sext i32 %22 to i64
  call void @llvm.memcpy.p0.p0.i64(ptr align 1 %20, ptr align 8 %21, i64 %23, i1 false)
  store ptr %20, ptr %6, align 8, !tbaa !5
  %24 = load ptr, ptr %6, align 8, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #5
  call void @llvm.lifetime.end.p0(i64 24, ptr %5) #5
  call void @llvm.lifetime.end.p0(i64 60, ptr %4) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %1) #5
  ret ptr %24
}

declare ptr @getProcessNameFromPid(i32 noundef) #1

declare i32 @getCurrentPid(...) #1

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #3

declare void @getNodeInfo(ptr noundef, ptr noundef, i32 noundef, ptr noundef) #1

; Function Attrs: nounwind uwtable
declare dso_local ptr @findAvaiableHeapKernelPage(i32 noundef) #2

; 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) #4

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { "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 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 #3 = { nocallback nofree nounwind willreturn memory(argmem: write) }
attributes #4 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
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 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !6, i64 0}
!10 = !{!"s_heapPage", !6, i64 0, !11, i64 8, !11, i64 12, !6, i64 16}
!11 = !{!"int", !7, i64 0}
!12 = !{!10, !11, i64 8}
!13 = !{!10, !6, i64 16}
!14 = !{!10, !11, i64 12}
!15 = !{!11, !11, i64 0}


; 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.13 = external hidden unnamed_addr constant [9 x i8], align 1

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

declare ptr @allocPage(i32 noundef, ptr noundef) local_unnamed_addr #1

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nounwind uwtable
define dso_local noundef ptr @createHeapPage() local_unnamed_addr #2 {
  %1 = alloca [60 x i8], align 16
  %2 = tail call i32 (...) @getCurrentPid() #4
  %3 = tail call ptr @getProcessNameFromPid(i32 noundef %2) #4
  call void @llvm.lifetime.start.p0(i64 60, ptr nonnull %1) #4
  call void @llvm.memset.p0.i64(ptr noundef nonnull align 16 dereferenceable(60) %1, i8 0, i64 60, i1 false)
  %4 = tail call i32 (...) @getCurrentPid() #4
  call void @getNodeInfo(ptr noundef nonnull %1, ptr noundef %3, i32 noundef %4, ptr noundef nonnull @.str.13) #4
  %5 = call ptr @allocPage(i32 noundef 4096, ptr noundef nonnull %1) #4
  %6 = call ptr @findAvaiableHeapKernelPage(i32 noundef 24)
  store ptr %5, ptr %6, align 1
  %.sroa.4.0..sroa_idx = getelementptr inbounds i8, ptr %6, i64 8
  store i32 0, ptr %.sroa.4.0..sroa_idx, align 1
  %.sroa.5.0..sroa_idx = getelementptr inbounds i8, ptr %6, i64 12
  store i32 4096, ptr %.sroa.5.0..sroa_idx, align 1
  %.sroa.6.0..sroa_idx = getelementptr inbounds i8, ptr %6, i64 16
  store ptr null, ptr %.sroa.6.0..sroa_idx, align 1
  call void @llvm.lifetime.end.p0(i64 60, ptr nonnull %1) #4
  ret ptr %6
}

declare ptr @getProcessNameFromPid(i32 noundef) local_unnamed_addr #1

declare i32 @getCurrentPid(...) local_unnamed_addr #1

; Function Attrs: mustprogress nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #3

declare void @getNodeInfo(ptr noundef, ptr noundef, i32 noundef, ptr noundef) local_unnamed_addr #1

; Function Attrs: nounwind uwtable
declare dso_local ptr @findAvaiableHeapKernelPage(i32 noundef) local_unnamed_addr #2

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { "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 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 #3 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: write) }
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)"}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,SROAPass,TailCallElimPass