; LLVM IR from QAQdev/mini-sql-engine :: src/page/index_roots_page.ll (ZN14IndexRootsPage6InsertEji)

; 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.IndexRootsPage = type { i32, [0 x %"struct.std::pair"] }
%"struct.std::pair" = type { i32, i32 }

; Function Attrs: mustprogress uwtable
define dso_local noundef zeroext i1 @_ZN14IndexRootsPage6InsertEji(ptr noundef nonnull align 4 dereferenceable(4) %0, i32 noundef %1, i32 noundef %2) #0 align 2 {
  %4 = alloca i1, align 1
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  %9 = alloca i32, align 4
  store ptr %0, ptr %5, align 8, !tbaa !5
  store i32 %1, ptr %6, align 4, !tbaa !9
  store i32 %2, ptr %7, align 4, !tbaa !9
  %10 = load ptr, ptr %5, align 8
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #3
  %11 = load i32, ptr %6, align 4, !tbaa !9
  %12 = call noundef i32 @_ZN14IndexRootsPage9FindIndexEj(ptr noundef nonnull align 4 dereferenceable(4) %10, i32 noundef %11)
  store i32 %12, ptr %8, align 4, !tbaa !9
  %13 = load i32, ptr %8, align 4, !tbaa !9
  %14 = icmp ne i32 %13, -1
  br i1 %14, label %15, label %16

15:                                               ; preds = %3
  store i1 false, ptr %4, align 1
  store i32 1, ptr %9, align 4
  br label %34

16:                                               ; preds = %3
  %17 = load i32, ptr %6, align 4, !tbaa !9
  %18 = getelementptr inbounds %class.IndexRootsPage, ptr %10, i32 0, i32 1
  %19 = getelementptr inbounds %class.IndexRootsPage, ptr %10, i32 0, i32 0
  %20 = load i32, ptr %19, align 4, !tbaa !11
  %21 = sext i32 %20 to i64
  %22 = getelementptr inbounds [0 x %"struct.std::pair"], ptr %18, i64 0, i64 %21
  %23 = getelementptr inbounds %"struct.std::pair", ptr %22, i32 0, i32 0
  store i32 %17, ptr %23, align 4, !tbaa !13
  %24 = load i32, ptr %7, align 4, !tbaa !9
  %25 = getelementptr inbounds %class.IndexRootsPage, ptr %10, i32 0, i32 1
  %26 = getelementptr inbounds %class.IndexRootsPage, ptr %10, i32 0, i32 0
  %27 = load i32, ptr %26, align 4, !tbaa !11
  %28 = sext i32 %27 to i64
  %29 = getelementptr inbounds [0 x %"struct.std::pair"], ptr %25, i64 0, i64 %28
  %30 = getelementptr inbounds %"struct.std::pair", ptr %29, i32 0, i32 1
  store i32 %24, ptr %30, align 4, !tbaa !15
  %31 = getelementptr inbounds %class.IndexRootsPage, ptr %10, i32 0, i32 0
  %32 = load i32, ptr %31, align 4, !tbaa !11
  %33 = add nsw i32 %32, 1
  store i32 %33, ptr %31, align 4, !tbaa !11
  store i1 true, ptr %4, align 1
  store i32 1, ptr %9, align 4
  br label %34

34:                                               ; preds = %16, %15
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #3
  %35 = load i1, ptr %4, align 1
  ret i1 %35
}

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i32 @_ZN14IndexRootsPage9FindIndexEj(ptr noundef nonnull align 4 dereferenceable(4), i32 noundef) #2 align 2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

attributes #0 = { 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 #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { mustprogress 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 = { 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++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{!12, !10, i64 0}
!12 = !{!"_ZTS14IndexRootsPage", !10, i64 0, !7, i64 4}
!13 = !{!14, !10, i64 0}
!14 = !{!"_ZTSSt4pairIjiE", !10, i64 0, !10, i64 4}
!15 = !{!14, !10, i64 4}


; 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.std::pair" = type { i32, i32 }

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef zeroext i1 @_ZN14IndexRootsPage6InsertEji(ptr noundef nonnull align 4 dereferenceable(4) %0, i32 noundef %1, i32 noundef %2) local_unnamed_addr #0 align 2 {
  %4 = tail call noundef i32 @_ZN14IndexRootsPage9FindIndexEj(ptr noundef nonnull align 4 dereferenceable(4) %0, i32 noundef %1)
  %.not = icmp eq i32 %4, -1
  br i1 %.not, label %5, label %12

5:                                                ; preds = %3
  %6 = getelementptr inbounds i8, ptr %0, i64 4
  %7 = load i32, ptr %0, align 4, !tbaa !5
  %8 = sext i32 %7 to i64
  %9 = getelementptr inbounds [0 x %"struct.std::pair"], ptr %6, i64 0, i64 %8
  store i32 %1, ptr %9, align 4, !tbaa !10
  %10 = getelementptr inbounds [0 x %"struct.std::pair"], ptr %6, i64 0, i64 %8, i32 1
  store i32 %2, ptr %10, align 4, !tbaa !12
  %11 = add nsw i32 %7, 1
  store i32 %11, ptr %0, align 4, !tbaa !5
  br label %12

12:                                               ; preds = %3, %5
  ret i1 %.not
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i32 @_ZN14IndexRootsPage9FindIndexEj(ptr noundef nonnull align 4 dereferenceable(4), i32 noundef) local_unnamed_addr #0 align 2

attributes #0 = { mustprogress 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 = !{!"_ZTS14IndexRootsPage", !7, i64 0, !8, i64 4}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!11, !7, i64 0}
!11 = !{!"_ZTSSt4pairIjiE", !7, i64 0, !7, i64 4}
!12 = !{!11, !7, i64 4}


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