; LLVM IR from mahanzavari/ARBAB :: src (hashmap)

; 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.HashMap = type { [10 x ptr] }
%struct.HashMapNode = type { [32 x i8], ptr, ptr }

; Function Attrs: nounwind uwtable
declare dso_local i32 @hash(ptr 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 willreturn memory(read)
declare i32 @strcmp(ptr noundef, ptr noundef) #2

; Function Attrs: nounwind uwtable
define dso_local void @hashmap_remove(ptr noundef %0, ptr noundef %1) #0 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca i32, align 4
  store ptr %0, ptr %3, align 8, !tbaa !5
  store ptr %1, ptr %4, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #4
  %9 = load ptr, ptr %4, align 8, !tbaa !5
  %10 = call i32 @hash(ptr noundef %9)
  store i32 %10, ptr %5, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #4
  %11 = load ptr, ptr %3, align 8, !tbaa !5
  %12 = getelementptr inbounds %struct.HashMap, ptr %11, i32 0, i32 0
  %13 = load i32, ptr %5, align 4, !tbaa !9
  %14 = zext i32 %13 to i64
  %15 = getelementptr inbounds [10 x ptr], ptr %12, i64 0, i64 %14
  %16 = load ptr, ptr %15, align 8, !tbaa !5
  store ptr %16, ptr %6, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #4
  store ptr null, ptr %7, align 8, !tbaa !5
  br label %17

17:                                               ; preds = %47, %2
  %18 = load ptr, ptr %6, align 8, !tbaa !5
  %19 = icmp ne ptr %18, null
  br i1 %19, label %20, label %52

20:                                               ; preds = %17
  %21 = load ptr, ptr %6, align 8, !tbaa !5
  %22 = getelementptr inbounds %struct.HashMapNode, ptr %21, i32 0, i32 0
  %23 = getelementptr inbounds [32 x i8], ptr %22, i64 0, i64 0
  %24 = load ptr, ptr %4, align 8, !tbaa !5
  %25 = call i32 @strcmp(ptr noundef %23, ptr noundef %24) #5
  %26 = icmp eq i32 %25, 0
  br i1 %26, label %27, label %47

27:                                               ; preds = %20
  %28 = load ptr, ptr %7, align 8, !tbaa !5
  %29 = icmp eq ptr %28, null
  br i1 %29, label %30, label %39

30:                                               ; preds = %27
  %31 = load ptr, ptr %6, align 8, !tbaa !5
  %32 = getelementptr inbounds %struct.HashMapNode, ptr %31, i32 0, i32 2
  %33 = load ptr, ptr %32, align 8, !tbaa !11
  %34 = load ptr, ptr %3, align 8, !tbaa !5
  %35 = getelementptr inbounds %struct.HashMap, ptr %34, i32 0, i32 0
  %36 = load i32, ptr %5, align 4, !tbaa !9
  %37 = zext i32 %36 to i64
  %38 = getelementptr inbounds [10 x ptr], ptr %35, i64 0, i64 %37
  store ptr %33, ptr %38, align 8, !tbaa !5
  br label %45

39:                                               ; preds = %27
  %40 = load ptr, ptr %6, align 8, !tbaa !5
  %41 = getelementptr inbounds %struct.HashMapNode, ptr %40, i32 0, i32 2
  %42 = load ptr, ptr %41, align 8, !tbaa !11
  %43 = load ptr, ptr %7, align 8, !tbaa !5
  %44 = getelementptr inbounds %struct.HashMapNode, ptr %43, i32 0, i32 2
  store ptr %42, ptr %44, align 8, !tbaa !11
  br label %45

45:                                               ; preds = %39, %30
  %46 = load ptr, ptr %6, align 8, !tbaa !5
  call void @free(ptr noundef %46) #4
  store i32 1, ptr %8, align 4
  br label %53

47:                                               ; preds = %20
  %48 = load ptr, ptr %6, align 8, !tbaa !5
  store ptr %48, ptr %7, align 8, !tbaa !5
  %49 = load ptr, ptr %6, align 8, !tbaa !5
  %50 = getelementptr inbounds %struct.HashMapNode, ptr %49, i32 0, i32 2
  %51 = load ptr, ptr %50, align 8, !tbaa !11
  store ptr %51, ptr %6, align 8, !tbaa !5
  br label %17, !llvm.loop !13

52:                                               ; preds = %17
  store i32 0, ptr %8, align 4
  br label %53

53:                                               ; preds = %52, %45
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #4
  %54 = load i32, ptr %8, align 4
  switch i32 %54, label %56 [
    i32 0, label %55
    i32 1, label %55
  ]

55:                                               ; preds = %53, %53
  ret void

56:                                               ; preds = %53
  unreachable
}

; Function Attrs: nounwind
declare void @free(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 = { nounwind willreturn memory(read) "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 = { 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 }
attributes #5 = { nounwind willreturn memory(read) }

!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, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{!12, !6, i64 40}
!12 = !{!"HashMapNode", !7, i64 0, !6, i64 32, !6, i64 40}
!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"

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

; Function Attrs: mustprogress nofree nounwind willreturn memory(argmem: read)
declare i32 @strcmp(ptr nocapture noundef, ptr nocapture noundef) local_unnamed_addr #1

; Function Attrs: nounwind uwtable
define dso_local void @hashmap_remove(ptr nocapture noundef %0, ptr noundef %1) local_unnamed_addr #0 {
  %3 = tail call i32 @hash(ptr noundef %1)
  %4 = zext i32 %3 to i64
  %5 = getelementptr inbounds [10 x ptr], ptr %0, i64 0, i64 %4
  %.01417 = load ptr, ptr %5, align 8, !tbaa !5
  %.not18 = icmp eq ptr %.01417, null
  br i1 %.not18, label %.loopexit, label %.lr.ph.preheader

.lr.ph.preheader:                                 ; preds = %2
  %6 = tail call i32 @strcmp(ptr noundef nonnull dereferenceable(1) %.01417, ptr noundef nonnull dereferenceable(1) %1) #3
  %7 = icmp eq i32 %6, 0
  br i1 %7, label %.lr.ph._crit_edge, label %.lr.ph28

.lr.ph:                                           ; preds = %.lr.ph28
  %8 = tail call i32 @strcmp(ptr noundef nonnull dereferenceable(1) %.014, ptr noundef nonnull dereferenceable(1) %1) #3
  %9 = icmp eq i32 %8, 0
  br i1 %9, label %.lr.ph._crit_edge, label %.lr.ph28, !llvm.loop !9

.lr.ph._crit_edge:                                ; preds = %.lr.ph, %.lr.ph.preheader
  %.01420.lcssa = phi ptr [ %.01417, %.lr.ph.preheader ], [ %.014, %.lr.ph ]
  %.019.lcssa = phi ptr [ null, %.lr.ph.preheader ], [ %.0142027, %.lr.ph ]
  %10 = icmp eq ptr %.019.lcssa, null
  %11 = getelementptr inbounds i8, ptr %.01420.lcssa, i64 40
  %12 = load ptr, ptr %11, align 8, !tbaa !11
  %13 = getelementptr inbounds i8, ptr %.019.lcssa, i64 40
  %.sink = select i1 %10, ptr %5, ptr %13
  store ptr %12, ptr %.sink, align 8, !tbaa !5
  tail call void @free(ptr noundef nonnull %.01420.lcssa) #4
  br label %.loopexit

.lr.ph28:                                         ; preds = %.lr.ph.preheader, %.lr.ph
  %.0142027 = phi ptr [ %.014, %.lr.ph ], [ %.01417, %.lr.ph.preheader ]
  %14 = getelementptr inbounds i8, ptr %.0142027, i64 40
  %.014 = load ptr, ptr %14, align 8, !tbaa !5
  %.not = icmp eq ptr %.014, null
  br i1 %.not, label %.loopexit, label %.lr.ph, !llvm.loop !9

.loopexit:                                        ; preds = %.lr.ph28, %2, %.lr.ph._crit_edge
  ret void
}

; Function Attrs: mustprogress nounwind willreturn allockind("free") memory(argmem: readwrite, inaccessiblemem: readwrite)
declare void @free(ptr allocptr nocapture noundef) local_unnamed_addr #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 = { mustprogress nofree nounwind willreturn memory(argmem: read) "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 nounwind willreturn allockind("free") memory(argmem: readwrite, inaccessiblemem: readwrite) "alloc-family"="malloc" "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 = { nounwind willreturn memory(read) }
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 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}
!11 = !{!12, !6, i64 40}
!12 = !{!"HashMapNode", !7, i64 0, !6, i64 32, !6, i64 40}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GVNPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass