; LLVM IR from AlgoGenesis/C :: hashmap (Implementation)

; 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 { i32, ptr }
%struct.Node = type { i32, i32, ptr }

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

; 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
declare dso_local i32 @hashFunction(i32 noundef, i32 noundef) #1

; Function Attrs: nounwind uwtable
define dso_local i32 @search(ptr noundef %0, i32 noundef %1) #1 {
  %3 = alloca i32, align 4
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = alloca ptr, align 8
  %8 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store i32 %1, ptr %5, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #2
  %9 = load i32, ptr %5, align 4, !tbaa !9
  %10 = load ptr, ptr %4, align 8, !tbaa !5
  %11 = getelementptr inbounds %struct.HashMap, ptr %10, i32 0, i32 0
  %12 = load i32, ptr %11, align 8, !tbaa !11
  %13 = call i32 @hashFunction(i32 noundef %9, i32 noundef %12)
  store i32 %13, ptr %6, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #2
  %14 = load ptr, ptr %4, align 8, !tbaa !5
  %15 = getelementptr inbounds %struct.HashMap, ptr %14, i32 0, i32 1
  %16 = load ptr, ptr %15, align 8, !tbaa !13
  %17 = load i32, ptr %6, align 4, !tbaa !9
  %18 = sext i32 %17 to i64
  %19 = getelementptr inbounds ptr, ptr %16, i64 %18
  %20 = load ptr, ptr %19, align 8, !tbaa !5
  store ptr %20, ptr %7, align 8, !tbaa !5
  br label %21

21:                                               ; preds = %34, %2
  %22 = load ptr, ptr %7, align 8, !tbaa !5
  %23 = icmp ne ptr %22, null
  br i1 %23, label %24, label %38

24:                                               ; preds = %21
  %25 = load ptr, ptr %7, align 8, !tbaa !5
  %26 = getelementptr inbounds %struct.Node, ptr %25, i32 0, i32 0
  %27 = load i32, ptr %26, align 8, !tbaa !14
  %28 = load i32, ptr %5, align 4, !tbaa !9
  %29 = icmp eq i32 %27, %28
  br i1 %29, label %30, label %34

30:                                               ; preds = %24
  %31 = load ptr, ptr %7, align 8, !tbaa !5
  %32 = getelementptr inbounds %struct.Node, ptr %31, i32 0, i32 1
  %33 = load i32, ptr %32, align 4, !tbaa !16
  store i32 %33, ptr %3, align 4
  store i32 1, ptr %8, align 4
  br label %39

34:                                               ; preds = %24
  %35 = load ptr, ptr %7, align 8, !tbaa !5
  %36 = getelementptr inbounds %struct.Node, ptr %35, i32 0, i32 2
  %37 = load ptr, ptr %36, align 8, !tbaa !17
  store ptr %37, ptr %7, align 8, !tbaa !5
  br label %21, !llvm.loop !18

38:                                               ; preds = %21
  store i32 -1, ptr %3, align 4
  store i32 1, ptr %8, align 4
  br label %39

39:                                               ; preds = %38, %30
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #2
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #2
  %40 = load i32, ptr %3, align 4
  ret i32 %40
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #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, !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, !10, i64 0}
!12 = !{!"HashMap", !10, i64 0, !6, i64 8}
!13 = !{!12, !6, i64 8}
!14 = !{!15, !10, i64 0}
!15 = !{!"Node", !10, i64 0, !10, i64 4, !6, i64 8}
!16 = !{!15, !10, i64 4}
!17 = !{!15, !6, i64 8}
!18 = distinct !{!18, !19}
!19 = !{!"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 @hashFunction(i32 noundef, i32 noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local i32 @search(ptr nocapture noundef readonly %0, i32 noundef %1) local_unnamed_addr #0 {
  %3 = load i32, ptr %0, align 8, !tbaa !5
  %4 = tail call i32 @hashFunction(i32 noundef %1, i32 noundef %3)
  %5 = getelementptr inbounds i8, ptr %0, i64 8
  %6 = load ptr, ptr %5, align 8, !tbaa !11
  %7 = sext i32 %4 to i64
  %8 = getelementptr inbounds ptr, ptr %6, i64 %7
  %.011 = load ptr, ptr %8, align 8, !tbaa !12
  %.not12 = icmp eq ptr %.011, null
  br i1 %.not12, label %.loopexit, label %.lr.ph

.lr.ph:                                           ; preds = %2, %14
  %.013 = phi ptr [ %.0, %14 ], [ %.011, %2 ]
  %9 = load i32, ptr %.013, align 8, !tbaa !13
  %10 = icmp eq i32 %9, %1
  br i1 %10, label %11, label %14

11:                                               ; preds = %.lr.ph
  %12 = getelementptr inbounds i8, ptr %.013, i64 4
  %13 = load i32, ptr %12, align 4, !tbaa !15
  br label %.loopexit

14:                                               ; preds = %.lr.ph
  %15 = getelementptr inbounds i8, ptr %.013, i64 8
  %.0 = load ptr, ptr %15, align 8, !tbaa !12
  %.not = icmp eq ptr %.0, null
  br i1 %.not, label %.loopexit, label %.lr.ph, !llvm.loop !16

.loopexit:                                        ; preds = %14, %2, %11
  %.09 = phi i32 [ %13, %11 ], [ -1, %2 ], [ -1, %14 ]
  ret i32 %.09
}

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" }

!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 = !{!"HashMap", !7, i64 0, !10, i64 8}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"any pointer", !8, i64 0}
!11 = !{!6, !10, i64 8}
!12 = !{!10, !10, i64 0}
!13 = !{!14, !7, i64 0}
!14 = !{!"Node", !7, i64 0, !7, i64 4, !10, i64 8}
!15 = !{!14, !7, i64 4}
!16 = distinct !{!16, !17}
!17 = !{!"llvm.loop.mustprogress"}


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