; LLVM IR from codee-com/open-catalog :: Checks/PWR023 (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 i32 @example(ptr noundef %0, ptr noundef %1) #0 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  store ptr %0, ptr %3, align 8, !tbaa !5
  store ptr %1, ptr %4, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #2
  store i32 0, ptr %5, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #2
  store i32 0, ptr %6, align 4, !tbaa !9
  br label %7

7:                                                ; preds = %23, %2
  %8 = load i32, ptr %6, align 4, !tbaa !9
  %9 = icmp slt i32 %8, 10
  br i1 %9, label %11, label %10

10:                                               ; preds = %7
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #2
  br label %26

11:                                               ; preds = %7
  %12 = load ptr, ptr %3, align 8, !tbaa !5
  %13 = load i32, ptr %6, align 4, !tbaa !9
  %14 = sext i32 %13 to i64
  %15 = getelementptr inbounds i32, ptr %12, i64 %14
  %16 = load i32, ptr %15, align 4, !tbaa !9
  %17 = load i32, ptr %5, align 4, !tbaa !9
  %18 = add nsw i32 %17, %16
  store i32 %18, ptr %5, align 4, !tbaa !9
  %19 = load ptr, ptr %4, align 8, !tbaa !5
  %20 = load i32, ptr %6, align 4, !tbaa !9
  %21 = sext i32 %20 to i64
  %22 = getelementptr inbounds i32, ptr %19, i64 %21
  store i32 2, ptr %22, align 4, !tbaa !9
  br label %23

23:                                               ; preds = %11
  %24 = load i32, ptr %6, align 4, !tbaa !9
  %25 = add nsw i32 %24, 1
  store i32 %25, ptr %6, align 4, !tbaa !9
  br label %7, !llvm.loop !11

26:                                               ; preds = %10
  %27 = load i32, ptr %5, align 4, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #2
  ret i32 %27
}

; 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"}


; 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: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) uwtable
define dso_local i32 @example(ptr nocapture noundef readonly %0, ptr nocapture noundef writeonly %1) local_unnamed_addr #0 {
  %3 = getelementptr inbounds i8, ptr %0, i64 4
  %4 = getelementptr inbounds i8, ptr %1, i64 4
  %5 = getelementptr inbounds i8, ptr %0, i64 8
  %6 = getelementptr inbounds i8, ptr %1, i64 8
  %7 = getelementptr inbounds i8, ptr %0, i64 12
  %8 = getelementptr inbounds i8, ptr %1, i64 12
  %9 = getelementptr inbounds i8, ptr %0, i64 16
  %10 = getelementptr inbounds i8, ptr %1, i64 16
  %11 = getelementptr inbounds i8, ptr %0, i64 20
  %12 = getelementptr inbounds i8, ptr %1, i64 20
  %13 = getelementptr inbounds i8, ptr %0, i64 24
  %14 = getelementptr inbounds i8, ptr %1, i64 24
  %15 = getelementptr inbounds i8, ptr %0, i64 28
  %16 = load i32, ptr %0, align 4, !tbaa !5
  store i32 2, ptr %1, align 4, !tbaa !5
  %17 = load i32, ptr %3, align 4, !tbaa !5
  store i32 2, ptr %4, align 4, !tbaa !5
  %18 = load i32, ptr %5, align 4, !tbaa !5
  store i32 2, ptr %6, align 4, !tbaa !5
  %19 = load i32, ptr %7, align 4, !tbaa !5
  store i32 2, ptr %8, align 4, !tbaa !5
  %20 = load i32, ptr %9, align 4, !tbaa !5
  store i32 2, ptr %10, align 4, !tbaa !5
  %21 = load i32, ptr %11, align 4, !tbaa !5
  store i32 2, ptr %12, align 4, !tbaa !5
  %22 = load i32, ptr %13, align 4, !tbaa !5
  store i32 2, ptr %14, align 4, !tbaa !5
  %23 = load i32, ptr %15, align 4, !tbaa !5
  %24 = getelementptr inbounds i8, ptr %1, i64 28
  store i32 2, ptr %24, align 4, !tbaa !5
  %25 = getelementptr inbounds i8, ptr %0, i64 32
  %26 = load i32, ptr %25, align 4, !tbaa !5
  %27 = getelementptr inbounds i8, ptr %1, i64 32
  store i32 2, ptr %27, align 4, !tbaa !5
  %28 = getelementptr inbounds i8, ptr %0, i64 36
  %29 = load i32, ptr %28, align 4, !tbaa !5
  %30 = insertelement <8 x i32> poison, i32 %16, i64 0
  %31 = insertelement <8 x i32> %30, i32 %17, i64 1
  %32 = insertelement <8 x i32> %31, i32 %18, i64 2
  %33 = insertelement <8 x i32> %32, i32 %19, i64 3
  %34 = insertelement <8 x i32> %33, i32 %20, i64 4
  %35 = insertelement <8 x i32> %34, i32 %21, i64 5
  %36 = insertelement <8 x i32> %35, i32 %22, i64 6
  %37 = insertelement <8 x i32> %36, i32 %23, i64 7
  %38 = tail call i32 @llvm.vector.reduce.add.v8i32(<8 x i32> %37)
  %op.rdx = add i32 %38, %26
  %op.rdx11 = add i32 %op.rdx, %29
  %39 = getelementptr inbounds i8, ptr %1, i64 36
  store i32 2, ptr %39, align 4, !tbaa !5
  ret i32 %op.rdx11
}

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare i32 @llvm.vector.reduce.add.v8i32(<8 x i32>) #1

attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn 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" }
attributes #1 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }

!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"}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,LCSSAPass,LoopRotatePass,PostOrderFunctionAttrsPass,ReassociatePass,SLPVectorizerPass,SROAPass,SimplifyCFGPass,TailCallElimPass