; LLVM IR from xergioalex/analysisOfSortAlgorithms :: algorithms/c (benchmark)

; 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
declare dso_local void @swap(i32 noundef, i32 noundef, ptr noundef) #1

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

8:                                                ; preds = %40, %2
  %9 = load i32, ptr %5, align 4, !tbaa !5
  %10 = load i32, ptr %3, align 4, !tbaa !5
  %11 = icmp slt i32 %9, %10
  br i1 %11, label %12, label %43

12:                                               ; preds = %8
  %13 = load i32, ptr %5, align 4, !tbaa !5
  store i32 %13, ptr %6, align 4, !tbaa !5
  br label %14

14:                                               ; preds = %32, %12
  %15 = load i32, ptr %6, align 4, !tbaa !5
  %16 = icmp sgt i32 %15, 0
  br i1 %16, label %17, label %30

17:                                               ; preds = %14
  %18 = load ptr, ptr %4, align 8, !tbaa !9
  %19 = load i32, ptr %6, align 4, !tbaa !5
  %20 = sext i32 %19 to i64
  %21 = getelementptr inbounds i32, ptr %18, i64 %20
  %22 = load i32, ptr %21, align 4, !tbaa !5
  %23 = load ptr, ptr %4, align 8, !tbaa !9
  %24 = load i32, ptr %6, align 4, !tbaa !5
  %25 = sub nsw i32 %24, 1
  %26 = sext i32 %25 to i64
  %27 = getelementptr inbounds i32, ptr %23, i64 %26
  %28 = load i32, ptr %27, align 4, !tbaa !5
  %29 = icmp slt i32 %22, %28
  br label %30

30:                                               ; preds = %17, %14
  %31 = phi i1 [ false, %14 ], [ %29, %17 ]
  br i1 %31, label %32, label %39

32:                                               ; preds = %30
  %33 = load i32, ptr %6, align 4, !tbaa !5
  %34 = load i32, ptr %6, align 4, !tbaa !5
  %35 = sub nsw i32 %34, 1
  %36 = load ptr, ptr %4, align 8, !tbaa !9
  call void @swap(i32 noundef %33, i32 noundef %35, ptr noundef %36)
  %37 = load i32, ptr %6, align 4, !tbaa !5
  %38 = add nsw i32 %37, -1
  store i32 %38, ptr %6, align 4, !tbaa !5
  br label %14, !llvm.loop !11

39:                                               ; preds = %30
  br label %40

40:                                               ; preds = %39
  %41 = load i32, ptr %5, align 4, !tbaa !5
  %42 = add nsw i32 %41, 1
  store i32 %42, ptr %5, align 4, !tbaa !5
  br label %8, !llvm.loop !13

43:                                               ; preds = %8
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #2
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #2
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #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"}
!13 = distinct !{!13, !12}


; 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: nounwind uwtable
declare dso_local void @swap(i32 noundef, i32 noundef, ptr noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local void @insertionSort(i32 noundef %0, ptr noundef %1) local_unnamed_addr #0 {
  %3 = icmp sgt i32 %0, 1
  br i1 %3, label %.preheader, label %._crit_edge

.preheader:                                       ; preds = %2, %.critedge
  %.014 = phi i32 [ %15, %.critedge ], [ 1, %2 ]
  br label %4

4:                                                ; preds = %.preheader, %13
  %.01213 = phi i32 [ %.014, %.preheader ], [ %8, %13 ]
  %5 = zext nneg i32 %.01213 to i64
  %6 = getelementptr inbounds i32, ptr %1, i64 %5
  %7 = load i32, ptr %6, align 4, !tbaa !5
  %8 = add nsw i32 %.01213, -1
  %9 = zext nneg i32 %8 to i64
  %10 = getelementptr inbounds i32, ptr %1, i64 %9
  %11 = load i32, ptr %10, align 4, !tbaa !5
  %12 = icmp slt i32 %7, %11
  br i1 %12, label %13, label %.critedge

13:                                               ; preds = %4
  tail call void @swap(i32 noundef %.01213, i32 noundef %8, ptr noundef nonnull %1)
  %14 = icmp sgt i32 %.01213, 1
  br i1 %14, label %4, label %.critedge, !llvm.loop !9

.critedge:                                        ; preds = %4, %13
  %15 = add nuw nsw i32 %.014, 1
  %exitcond.not = icmp eq i32 %15, %0
  br i1 %exitcond.not, label %._crit_edge, label %.preheader, !llvm.loop !11

._crit_edge:                                      ; preds = %.critedge, %2
  ret void
}

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, !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"}
!11 = distinct !{!11, !10}


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