; LLVM IR from recrsn/tinydb :: database (mem_offset)

; 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.field = type { [32 x i8], i64, i32 }

; 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 i64 @field_size(ptr noundef byval(%struct.field) align 8) #1

; Function Attrs: nounwind uwtable
declare dso_local i64 @row_size_2(i32 noundef, ptr noundef) #1

; Function Attrs: nounwind uwtable
define dso_local i64 @mem_offset(i32 noundef %0, ptr noundef %1, i64 noundef %2, i32 noundef %3) #1 {
  %5 = alloca i32, align 4
  %6 = alloca ptr, align 8
  %7 = alloca i64, align 8
  %8 = alloca i32, align 4
  %9 = alloca i64, align 8
  %10 = alloca i32, align 4
  store i32 %0, ptr %5, align 4, !tbaa !5
  store ptr %1, ptr %6, align 8, !tbaa !9
  store i64 %2, ptr %7, align 8, !tbaa !11
  store i32 %3, ptr %8, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #2
  %11 = load i64, ptr %7, align 8, !tbaa !11
  %12 = load i32, ptr %5, align 4, !tbaa !5
  %13 = load ptr, ptr %6, align 8, !tbaa !9
  %14 = call i64 @row_size_2(i32 noundef %12, ptr noundef %13)
  %15 = mul i64 %11, %14
  store i64 %15, ptr %9, align 8, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 4, ptr %10) #2
  store i32 0, ptr %10, align 4, !tbaa !5
  br label %16

16:                                               ; preds = %29, %4
  %17 = load i32, ptr %10, align 4, !tbaa !5
  %18 = load i32, ptr %8, align 4, !tbaa !5
  %19 = icmp slt i32 %17, %18
  br i1 %19, label %21, label %20

20:                                               ; preds = %16
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #2
  br label %32

21:                                               ; preds = %16
  %22 = load ptr, ptr %6, align 8, !tbaa !9
  %23 = load i32, ptr %10, align 4, !tbaa !5
  %24 = sext i32 %23 to i64
  %25 = getelementptr inbounds %struct.field, ptr %22, i64 %24
  %26 = call i64 @field_size(ptr noundef byval(%struct.field) align 8 %25)
  %27 = load i64, ptr %9, align 8, !tbaa !11
  %28 = add i64 %27, %26
  store i64 %28, ptr %9, align 8, !tbaa !11
  br label %29

29:                                               ; preds = %21
  %30 = load i32, ptr %10, align 4, !tbaa !5
  %31 = add nsw i32 %30, 1
  store i32 %31, ptr %10, align 4, !tbaa !5
  br label %16, !llvm.loop !13

32:                                               ; preds = %20
  %33 = load i64, ptr %9, align 8, !tbaa !11
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #2
  ret i64 %33
}

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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"any pointer", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"long", !7, i64 0}
!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"

%struct.field = type { [32 x i8], i64, i32 }

; Function Attrs: nounwind uwtable
declare dso_local i64 @field_size(ptr noundef byval(%struct.field) align 8) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
declare dso_local i64 @row_size_2(i32 noundef, ptr noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local i64 @mem_offset(i32 noundef %0, ptr noundef %1, i64 noundef %2, i32 noundef %3) local_unnamed_addr #0 {
  %5 = tail call i64 @row_size_2(i32 noundef %0, ptr noundef %1)
  %6 = mul i64 %5, %2
  %7 = icmp sgt i32 %3, 0
  br i1 %7, label %.lr.ph.preheader, label %._crit_edge

.lr.ph.preheader:                                 ; preds = %4
  %wide.trip.count = zext nneg i32 %3 to i64
  br label %.lr.ph

._crit_edge:                                      ; preds = %.lr.ph, %4
  %.09.lcssa = phi i64 [ %6, %4 ], [ %10, %.lr.ph ]
  ret i64 %.09.lcssa

.lr.ph:                                           ; preds = %.lr.ph.preheader, %.lr.ph
  %indvars.iv = phi i64 [ 0, %.lr.ph.preheader ], [ %indvars.iv.next, %.lr.ph ]
  %.0910 = phi i64 [ %6, %.lr.ph.preheader ], [ %10, %.lr.ph ]
  %8 = getelementptr inbounds %struct.field, ptr %1, i64 %indvars.iv
  %9 = tail call i64 @field_size(ptr noundef byval(%struct.field) align 8 %8)
  %10 = add i64 %9, %.0910
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %exitcond.not = icmp eq i64 %indvars.iv.next, %wide.trip.count
  br i1 %exitcond.not, label %._crit_edge, label %.lr.ph, !llvm.loop !5
}

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 = distinct !{!5, !6}
!6 = !{!"llvm.loop.mustprogress"}


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