; LLVM IR from chirag-singhal/Coding-Interview-101 :: Miscellaneous/Labs/Lab1/AssignmentFiles (seqListOps)

; 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.SeqList = type { i32, i32 }
%struct.Job = type { i32, i32, i32, 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 @insert(i64, i64, i64) #1

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #2

; Function Attrs: nounwind uwtable
define dso_local void @insertelements(ptr noundef %0, i32 noundef %1, ptr noundef %2) #1 {
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  %6 = alloca ptr, align 8
  %7 = alloca i32, align 4
  %8 = alloca %struct.SeqList, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store i32 %1, ptr %5, align 4, !tbaa !9
  store ptr %2, ptr %6, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #3
  store i32 0, ptr %7, align 4, !tbaa !9
  br label %9

9:                                                ; preds = %43, %3
  %10 = load i32, ptr %7, align 4, !tbaa !9
  %11 = load i32, ptr %5, align 4, !tbaa !9
  %12 = icmp slt i32 %10, %11
  br i1 %12, label %14, label %13

13:                                               ; preds = %9
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #3
  br label %46

14:                                               ; preds = %9
  %15 = load ptr, ptr %6, align 8, !tbaa !5
  %16 = load ptr, ptr %4, align 8, !tbaa !5
  %17 = load i32, ptr %7, align 4, !tbaa !9
  %18 = sext i32 %17 to i64
  %19 = getelementptr inbounds %struct.Job, ptr %16, i64 %18
  %20 = getelementptr inbounds %struct.Job, ptr %19, i32 0, i32 1
  %21 = load i32, ptr %20, align 4, !tbaa !11
  %22 = zext i32 %21 to i64
  %23 = getelementptr inbounds %struct.SeqList, ptr %15, i64 %22
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #3
  %24 = load ptr, ptr %4, align 8, !tbaa !5
  %25 = load i32, ptr %7, align 4, !tbaa !9
  %26 = sext i32 %25 to i64
  %27 = getelementptr inbounds %struct.Job, ptr %24, i64 %26
  %28 = load ptr, ptr %6, align 8, !tbaa !5
  %29 = load ptr, ptr %4, align 8, !tbaa !5
  %30 = load i32, ptr %7, align 4, !tbaa !9
  %31 = sext i32 %30 to i64
  %32 = getelementptr inbounds %struct.Job, ptr %29, i64 %31
  %33 = getelementptr inbounds %struct.Job, ptr %32, i32 0, i32 1
  %34 = load i32, ptr %33, align 4, !tbaa !11
  %35 = zext i32 %34 to i64
  %36 = getelementptr inbounds %struct.SeqList, ptr %28, i64 %35
  %37 = getelementptr inbounds { i64, i64 }, ptr %27, i32 0, i32 0
  %38 = load i64, ptr %37, align 4
  %39 = getelementptr inbounds { i64, i64 }, ptr %27, i32 0, i32 1
  %40 = load i64, ptr %39, align 4
  %41 = load i64, ptr %36, align 4
  %42 = call i64 @insert(i64 %38, i64 %40, i64 %41)
  store i64 %42, ptr %8, align 4
  call void @llvm.memcpy.p0.p0.i64(ptr align 4 %23, ptr align 4 %8, i64 8, i1 false), !tbaa.struct !13
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #3
  br label %43

43:                                               ; preds = %14
  %44 = load i32, ptr %7, align 4, !tbaa !9
  %45 = add nsw i32 %44, 1
  store i32 %45, ptr %7, align 4, !tbaa !9
  br label %9, !llvm.loop !14

46:                                               ; preds = %13
  ret void
}

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 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
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/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{!12, !10, i64 4}
!12 = !{!"", !10, i64 0, !10, i64 4, !10, i64 8, !10, i64 12}
!13 = !{i64 0, i64 4, !9, i64 4, i64 4, !9}
!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"

%struct.Job = type { i32, i32, i32, i32 }
%struct.SeqList = type { i32, i32 }

; Function Attrs: nounwind uwtable
declare dso_local i64 @insert(i64, i64, i64) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local void @insertelements(ptr nocapture noundef readonly %0, i32 noundef %1, ptr nocapture noundef %2) local_unnamed_addr #0 {
  %4 = icmp sgt i32 %1, 0
  br i1 %4, label %.lr.ph.preheader, label %._crit_edge

.lr.ph.preheader:                                 ; preds = %3
  %wide.trip.count = zext nneg i32 %1 to i64
  br label %.lr.ph

._crit_edge:                                      ; preds = %.lr.ph, %3
  ret void

.lr.ph:                                           ; preds = %.lr.ph.preheader, %.lr.ph
  %indvars.iv = phi i64 [ 0, %.lr.ph.preheader ], [ %indvars.iv.next, %.lr.ph ]
  %5 = getelementptr inbounds %struct.Job, ptr %0, i64 %indvars.iv
  %6 = getelementptr inbounds i8, ptr %5, i64 4
  %7 = load i32, ptr %6, align 4, !tbaa !5
  %8 = zext i32 %7 to i64
  %9 = getelementptr inbounds %struct.SeqList, ptr %2, i64 %8
  %10 = load i64, ptr %5, align 4
  %11 = getelementptr inbounds i8, ptr %5, i64 8
  %12 = load i64, ptr %11, align 4
  %13 = load i64, ptr %9, align 4
  %14 = tail call i64 @insert(i64 %10, i64 %12, i64 %13)
  store i64 %14, ptr %9, align 4
  %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 !10
}

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 4}
!6 = !{!"", !7, i64 0, !7, i64 4, !7, i64 8, !7, i64 12}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = distinct !{!10, !11}
!11 = !{!"llvm.loop.mustprogress"}


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