; LLVM IR from keroro824/HashingDeepLearning :: SLIDE/LSH.ll (ZN3LSH11retrieveRawEPi)

; 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"

%class.LSH = type { ptr, i32, i32, i32, ptr }
%class.Bucket = type <{ ptr, i32, i32, i32, [4 x i8] }>

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare { i64, i1 } @llvm.umul.with.overflow.i64(i64, i64) #0

; Function Attrs: nobuiltin allocsize(0)
declare noundef nonnull ptr @_Znam(i64 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: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: mustprogress uwtable
define dso_local noundef ptr @_ZN3LSH11retrieveRawEPi(ptr noundef nonnull align 8 dereferenceable(32) %0, ptr noundef %1) #3 align 2 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  store ptr %0, ptr %3, align 8, !tbaa !5
  store ptr %1, ptr %4, align 8, !tbaa !5
  %7 = load ptr, ptr %3, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #5
  %8 = getelementptr inbounds %class.LSH, ptr %7, i32 0, i32 2
  %9 = load i32, ptr %8, align 4, !tbaa !9
  %10 = sext i32 %9 to i64
  %11 = call { i64, i1 } @llvm.umul.with.overflow.i64(i64 %10, i64 8)
  %12 = extractvalue { i64, i1 } %11, 1
  %13 = extractvalue { i64, i1 } %11, 0
  %14 = select i1 %12, i64 -1, i64 %13
  %15 = call noalias noundef nonnull ptr @_Znam(i64 noundef %14) #6
  store ptr %15, ptr %5, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #5
  store i32 0, ptr %6, align 4, !tbaa !12
  br label %16

16:                                               ; preds = %41, %2
  %17 = load i32, ptr %6, align 4, !tbaa !12
  %18 = getelementptr inbounds %class.LSH, ptr %7, i32 0, i32 2
  %19 = load i32, ptr %18, align 4, !tbaa !9
  %20 = icmp slt i32 %17, %19
  br i1 %20, label %22, label %21

21:                                               ; preds = %16
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #5
  br label %44

22:                                               ; preds = %16
  %23 = getelementptr inbounds %class.LSH, ptr %7, i32 0, i32 0
  %24 = load ptr, ptr %23, align 8, !tbaa !13
  %25 = load i32, ptr %6, align 4, !tbaa !12
  %26 = sext i32 %25 to i64
  %27 = getelementptr inbounds ptr, ptr %24, i64 %26
  %28 = load ptr, ptr %27, align 8, !tbaa !5
  %29 = load ptr, ptr %4, align 8, !tbaa !5
  %30 = load i32, ptr %6, align 4, !tbaa !12
  %31 = sext i32 %30 to i64
  %32 = getelementptr inbounds i32, ptr %29, i64 %31
  %33 = load i32, ptr %32, align 4, !tbaa !12
  %34 = sext i32 %33 to i64
  %35 = getelementptr inbounds %class.Bucket, ptr %28, i64 %34
  %36 = call noundef ptr @_ZN6Bucket6getAllEv(ptr noundef nonnull align 8 dereferenceable(20) %35)
  %37 = load ptr, ptr %5, align 8, !tbaa !5
  %38 = load i32, ptr %6, align 4, !tbaa !12
  %39 = sext i32 %38 to i64
  %40 = getelementptr inbounds ptr, ptr %37, i64 %39
  store ptr %36, ptr %40, align 8, !tbaa !5
  br label %41

41:                                               ; preds = %22
  %42 = load i32, ptr %6, align 4, !tbaa !12
  %43 = add nsw i32 %42, 1
  store i32 %43, ptr %6, align 4, !tbaa !12
  br label %16, !llvm.loop !14

44:                                               ; preds = %21
  %45 = load ptr, ptr %5, align 8, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #5
  ret ptr %45
}

declare noundef ptr @_ZN6Bucket6getAllEv(ptr noundef nonnull align 8 dereferenceable(20)) #4

attributes #0 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #1 = { nobuiltin allocsize(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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #3 = { mustprogress 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 #4 = { "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 #5 = { nounwind }
attributes #6 = { builtin allocsize(0) }

!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++ TBAA"}
!9 = !{!10, !11, i64 12}
!10 = !{!"_ZTS3LSH", !6, i64 0, !11, i64 8, !11, i64 12, !11, i64 16, !6, i64 24}
!11 = !{!"int", !7, i64 0}
!12 = !{!11, !11, i64 0}
!13 = !{!10, !6, i64 0}
!14 = distinct !{!14, !15}
!15 = !{!"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"

%class.Bucket = type <{ ptr, i32, i32, i32, [4 x i8] }>

; Function Attrs: nobuiltin allocsize(0)
declare noundef nonnull ptr @_Znam(i64 noundef) local_unnamed_addr #0

; Function Attrs: mustprogress uwtable
define dso_local noalias noundef nonnull ptr @_ZN3LSH11retrieveRawEPi(ptr nocapture noundef nonnull readonly align 8 dereferenceable(32) %0, ptr nocapture noundef readonly %1) local_unnamed_addr #1 align 2 {
  %3 = getelementptr inbounds i8, ptr %0, i64 12
  %4 = load i32, ptr %3, align 4, !tbaa !5
  %5 = sext i32 %4 to i64
  %6 = icmp slt i32 %4, 0
  %7 = shl nsw i64 %5, 3
  %8 = select i1 %6, i64 -1, i64 %7
  %9 = tail call noalias noundef nonnull ptr @_Znam(i64 noundef %8) #3
  %10 = icmp sgt i32 %4, 0
  br i1 %10, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %.lr.ph, %2
  ret ptr %9

.lr.ph:                                           ; preds = %2, %.lr.ph
  %indvars.iv = phi i64 [ %indvars.iv.next, %.lr.ph ], [ 0, %2 ]
  %11 = load ptr, ptr %0, align 8, !tbaa !11
  %12 = getelementptr inbounds ptr, ptr %11, i64 %indvars.iv
  %13 = load ptr, ptr %12, align 8, !tbaa !12
  %14 = getelementptr inbounds i32, ptr %1, i64 %indvars.iv
  %15 = load i32, ptr %14, align 4, !tbaa !13
  %16 = sext i32 %15 to i64
  %17 = getelementptr inbounds %class.Bucket, ptr %13, i64 %16
  %18 = tail call noundef ptr @_ZN6Bucket6getAllEv(ptr noundef nonnull align 8 dereferenceable(20) %17)
  %19 = getelementptr inbounds ptr, ptr %9, i64 %indvars.iv
  store ptr %18, ptr %19, align 8, !tbaa !12
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %20 = load i32, ptr %3, align 4, !tbaa !5
  %21 = sext i32 %20 to i64
  %22 = icmp slt i64 %indvars.iv.next, %21
  br i1 %22, label %.lr.ph, label %._crit_edge, !llvm.loop !14
}

declare noundef ptr @_ZN6Bucket6getAllEv(ptr noundef nonnull align 8 dereferenceable(20)) local_unnamed_addr #2

attributes #0 = { nobuiltin allocsize(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 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 = { "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 = { builtin allocsize(0) }

!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, !10, i64 12}
!6 = !{!"_ZTS3LSH", !7, i64 0, !10, i64 8, !10, i64 12, !10, i64 16, !7, i64 24}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"int", !8, i64 0}
!11 = !{!6, !7, i64 0}
!12 = !{!7, !7, i64 0}
!13 = !{!10, !10, i64 0}
!14 = distinct !{!14, !15}
!15 = !{!"llvm.loop.mustprogress"}


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