; LLVM IR from AdrianWR/push_swap :: src (get_stack)

; 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"

; 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
define dso_local void @insert_sorted(i32 noundef %0, ptr noundef %1, i32 noundef %2) #1 {
  %4 = alloca i32, align 4
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  store i32 %0, ptr %4, align 4, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !9
  store i32 %2, ptr %6, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #2
  %8 = load i32, ptr %6, align 4, !tbaa !5
  store i32 %8, ptr %7, align 4, !tbaa !5
  br label %9

9:                                                ; preds = %23, %3
  %10 = load i32, ptr %7, align 4, !tbaa !5
  %11 = add nsw i32 %10, -1
  store i32 %11, ptr %7, align 4, !tbaa !5
  %12 = icmp sge i32 %11, 0
  br i1 %12, label %13, label %21

13:                                               ; preds = %9
  %14 = load ptr, ptr %5, align 8, !tbaa !9
  %15 = load i32, ptr %7, align 4, !tbaa !5
  %16 = sext i32 %15 to i64
  %17 = getelementptr inbounds i32, ptr %14, i64 %16
  %18 = load i32, ptr %17, align 4, !tbaa !5
  %19 = load i32, ptr %4, align 4, !tbaa !5
  %20 = icmp sgt i32 %18, %19
  br label %21

21:                                               ; preds = %13, %9
  %22 = phi i1 [ false, %9 ], [ %20, %13 ]
  br i1 %22, label %23, label %34

23:                                               ; preds = %21
  %24 = load ptr, ptr %5, align 8, !tbaa !9
  %25 = load i32, ptr %7, align 4, !tbaa !5
  %26 = sext i32 %25 to i64
  %27 = getelementptr inbounds i32, ptr %24, i64 %26
  %28 = load i32, ptr %27, align 4, !tbaa !5
  %29 = load ptr, ptr %5, align 8, !tbaa !9
  %30 = load i32, ptr %7, align 4, !tbaa !5
  %31 = add nsw i32 %30, 1
  %32 = sext i32 %31 to i64
  %33 = getelementptr inbounds i32, ptr %29, i64 %32
  store i32 %28, ptr %33, align 4, !tbaa !5
  br label %9, !llvm.loop !11

34:                                               ; preds = %21
  %35 = load i32, ptr %4, align 4, !tbaa !5
  %36 = load ptr, ptr %5, align 8, !tbaa !9
  %37 = load i32, ptr %7, align 4, !tbaa !5
  %38 = add nsw i32 %37, 1
  %39 = sext i32 %38 to i64
  %40 = getelementptr inbounds i32, ptr %36, i64 %39
  store i32 %35, ptr %40, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #2
  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 = { 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 = distinct !{!11, !12}
!12 = !{!"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: nofree norecurse nosync nounwind memory(argmem: readwrite) uwtable
define dso_local void @insert_sorted(i32 noundef %0, ptr nocapture noundef %1, i32 noundef %2) local_unnamed_addr #0 {
  %4 = icmp sgt i32 %2, 0
  br i1 %4, label %.lr.ph.preheader, label %.critedge

.lr.ph.preheader:                                 ; preds = %3
  %5 = zext nneg i32 %2 to i64
  br label %.lr.ph

.lr.ph:                                           ; preds = %.lr.ph.preheader, %9
  %indvars.iv = phi i64 [ %5, %.lr.ph.preheader ], [ %indvars.iv.next, %9 ]
  %indvars.iv.next = add nsw i64 %indvars.iv, -1
  %6 = getelementptr inbounds i32, ptr %1, i64 %indvars.iv.next
  %7 = load i32, ptr %6, align 4, !tbaa !5
  %8 = icmp sgt i32 %7, %0
  br i1 %8, label %9, label %.critedge.loopexit.split.loop.exit17

9:                                                ; preds = %.lr.ph
  %10 = getelementptr inbounds i32, ptr %1, i64 %indvars.iv
  store i32 %7, ptr %10, align 4, !tbaa !5
  %11 = icmp ugt i64 %indvars.iv, 1
  br i1 %11, label %.lr.ph, label %.critedge, !llvm.loop !9

.critedge.loopexit.split.loop.exit17:             ; preds = %.lr.ph
  %12 = trunc nuw nsw i64 %indvars.iv to i32
  br label %.critedge

.critedge:                                        ; preds = %9, %.critedge.loopexit.split.loop.exit17, %3
  %.0.lcssa = phi i32 [ %2, %3 ], [ %12, %.critedge.loopexit.split.loop.exit17 ], [ 0, %9 ]
  %13 = sext i32 %.0.lcssa to i64
  %14 = getelementptr inbounds i32, ptr %1, i64 %13
  store i32 %0, ptr %14, align 4, !tbaa !5
  ret void
}

attributes #0 = { nofree norecurse nosync nounwind memory(argmem: readwrite) 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, !6, i64 0}
!6 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GlobalOptPass,IPSCCPPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LICMPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass