; LLVM IR from codee-com/open-catalog :: Checks/PWR010 (example)

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

6:                                                ; preds = %28, %1
  %7 = load i32, ptr %3, align 4, !tbaa !9
  %8 = icmp slt i32 %7, 100
  br i1 %8, label %10, label %9

9:                                                ; preds = %6
  store i32 2, ptr %4, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #2
  br label %31

10:                                               ; preds = %6
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #2
  store i32 0, ptr %5, align 4, !tbaa !9
  br label %11

11:                                               ; preds = %24, %10
  %12 = load i32, ptr %5, align 4, !tbaa !9
  %13 = icmp slt i32 %12, 100
  br i1 %13, label %15, label %14

14:                                               ; preds = %11
  store i32 5, ptr %4, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #2
  br label %27

15:                                               ; preds = %11
  %16 = load ptr, ptr %2, align 8, !tbaa !5
  %17 = load i32, ptr %5, align 4, !tbaa !9
  %18 = sext i32 %17 to i64
  %19 = getelementptr inbounds ptr, ptr %16, i64 %18
  %20 = load ptr, ptr %19, align 8, !tbaa !5
  %21 = load i32, ptr %3, align 4, !tbaa !9
  %22 = sext i32 %21 to i64
  %23 = getelementptr inbounds i32, ptr %20, i64 %22
  store i32 0, ptr %23, align 4, !tbaa !9
  br label %24

24:                                               ; preds = %15
  %25 = load i32, ptr %5, align 4, !tbaa !9
  %26 = add nsw i32 %25, 1
  store i32 %26, ptr %5, align 4, !tbaa !9
  br label %11, !llvm.loop !11

27:                                               ; preds = %14
  br label %28

28:                                               ; preds = %27
  %29 = load i32, ptr %3, align 4, !tbaa !9
  %30 = add nsw i32 %29, 1
  store i32 %30, ptr %3, align 4, !tbaa !9
  br label %6, !llvm.loop !13

31:                                               ; preds = %9
  ret void
}

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

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

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" }
attributes #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = !{!"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 = 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: nofree norecurse nosync nounwind memory(write, argmem: readwrite, inaccessiblemem: none) uwtable
define dso_local void @example(ptr nocapture noundef readonly %0) local_unnamed_addr #0 {
  %invariant.gep = getelementptr inbounds i8, ptr %0, i64 8
  %invariant.gep14 = getelementptr inbounds i8, ptr %0, i64 16
  %invariant.gep16 = getelementptr inbounds i8, ptr %0, i64 24
  %invariant.gep18 = getelementptr inbounds i8, ptr %0, i64 32
  br label %.preheader

.preheader:                                       ; preds = %1, %3
  %indvars.iv10 = phi i64 [ 0, %1 ], [ %indvars.iv.next11, %3 ]
  br label %4

2:                                                ; preds = %3
  ret void

3:                                                ; preds = %4
  %indvars.iv.next11 = add nuw nsw i64 %indvars.iv10, 1
  %exitcond13.not = icmp eq i64 %indvars.iv.next11, 100
  br i1 %exitcond13.not, label %2, label %.preheader, !llvm.loop !5

4:                                                ; preds = %4, %.preheader
  %indvars.iv = phi i64 [ 0, %.preheader ], [ %indvars.iv.next.4, %4 ]
  %5 = getelementptr inbounds ptr, ptr %0, i64 %indvars.iv
  %6 = load ptr, ptr %5, align 8, !tbaa !7
  %7 = getelementptr inbounds i32, ptr %6, i64 %indvars.iv10
  store i32 0, ptr %7, align 4, !tbaa !11
  %gep = getelementptr inbounds ptr, ptr %invariant.gep, i64 %indvars.iv
  %8 = load ptr, ptr %gep, align 8, !tbaa !7
  %9 = getelementptr inbounds i32, ptr %8, i64 %indvars.iv10
  store i32 0, ptr %9, align 4, !tbaa !11
  %gep15 = getelementptr inbounds ptr, ptr %invariant.gep14, i64 %indvars.iv
  %10 = load ptr, ptr %gep15, align 8, !tbaa !7
  %11 = getelementptr inbounds i32, ptr %10, i64 %indvars.iv10
  store i32 0, ptr %11, align 4, !tbaa !11
  %gep17 = getelementptr inbounds ptr, ptr %invariant.gep16, i64 %indvars.iv
  %12 = load ptr, ptr %gep17, align 8, !tbaa !7
  %13 = getelementptr inbounds i32, ptr %12, i64 %indvars.iv10
  store i32 0, ptr %13, align 4, !tbaa !11
  %gep19 = getelementptr inbounds ptr, ptr %invariant.gep18, i64 %indvars.iv
  %14 = load ptr, ptr %gep19, align 8, !tbaa !7
  %15 = getelementptr inbounds i32, ptr %14, i64 %indvars.iv10
  store i32 0, ptr %15, align 4, !tbaa !11
  %indvars.iv.next.4 = add nuw nsw i64 %indvars.iv, 5
  %exitcond.not.4 = icmp eq i64 %indvars.iv.next.4, 100
  br i1 %exitcond.not.4, label %3, label %4, !llvm.loop !13
}

attributes #0 = { nofree norecurse nosync nounwind memory(write, argmem: readwrite, inaccessiblemem: none) 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"}
!7 = !{!8, !8, i64 0}
!8 = !{!"any pointer", !9, i64 0}
!9 = !{!"omnipotent char", !10, i64 0}
!10 = !{!"Simple C/C++ TBAA"}
!11 = !{!12, !12, i64 0}
!12 = !{!"int", !9, i64 0}
!13 = distinct !{!13, !6}


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