; LLVM IR from codee-com/open-catalog :: Checks/PWR001 (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"

@A = external dso_local global [100 x i32], align 16

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

2:                                                ; preds = %11, %0
  %3 = load i32, ptr %1, align 4, !tbaa !5
  %4 = icmp slt i32 %3, 100
  br i1 %4, label %6, label %5

5:                                                ; preds = %2
  call void @llvm.lifetime.end.p0(i64 4, ptr %1) #2
  br label %14

6:                                                ; preds = %2
  %7 = load i32, ptr %1, align 4, !tbaa !5
  %8 = load i32, ptr %1, align 4, !tbaa !5
  %9 = sext i32 %8 to i64
  %10 = getelementptr inbounds [100 x i32], ptr @A, i64 0, i64 %9
  store i32 %7, ptr %10, align 4, !tbaa !5
  br label %11

11:                                               ; preds = %6
  %12 = load i32, ptr %1, align 4, !tbaa !5
  %13 = add nsw i32 %12, 1
  store i32 %13, ptr %1, align 4, !tbaa !5
  br label %2, !llvm.loop !9

14:                                               ; preds = %5
  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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"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"

@A = external dso_local local_unnamed_addr global [100 x i32], align 16

; Function Attrs: nofree norecurse nosync nounwind memory(write, argmem: none, inaccessiblemem: none) uwtable
define dso_local void @init() local_unnamed_addr #0 {
vector.ph:
  store <4 x i32> <i32 0, i32 1, i32 2, i32 3>, ptr @A, align 16, !tbaa !5
  store <4 x i32> <i32 4, i32 5, i32 6, i32 7>, ptr getelementptr inbounds (i8, ptr @A, i64 16), align 16, !tbaa !5
  store <4 x i32> <i32 8, i32 9, i32 10, i32 11>, ptr getelementptr inbounds (i8, ptr @A, i64 32), align 16, !tbaa !5
  store <4 x i32> <i32 12, i32 13, i32 14, i32 15>, ptr getelementptr inbounds (i8, ptr @A, i64 48), align 16, !tbaa !5
  store <4 x i32> <i32 16, i32 17, i32 18, i32 19>, ptr getelementptr inbounds (i8, ptr @A, i64 64), align 16, !tbaa !5
  store <4 x i32> <i32 20, i32 21, i32 22, i32 23>, ptr getelementptr inbounds (i8, ptr @A, i64 80), align 16, !tbaa !5
  store <4 x i32> <i32 24, i32 25, i32 26, i32 27>, ptr getelementptr inbounds (i8, ptr @A, i64 96), align 16, !tbaa !5
  store <4 x i32> <i32 28, i32 29, i32 30, i32 31>, ptr getelementptr inbounds (i8, ptr @A, i64 112), align 16, !tbaa !5
  store <4 x i32> <i32 32, i32 33, i32 34, i32 35>, ptr getelementptr inbounds (i8, ptr @A, i64 128), align 16, !tbaa !5
  store <4 x i32> <i32 36, i32 37, i32 38, i32 39>, ptr getelementptr inbounds (i8, ptr @A, i64 144), align 16, !tbaa !5
  store <4 x i32> <i32 40, i32 41, i32 42, i32 43>, ptr getelementptr inbounds (i8, ptr @A, i64 160), align 16, !tbaa !5
  store <4 x i32> <i32 44, i32 45, i32 46, i32 47>, ptr getelementptr inbounds (i8, ptr @A, i64 176), align 16, !tbaa !5
  store <4 x i32> <i32 48, i32 49, i32 50, i32 51>, ptr getelementptr inbounds (i8, ptr @A, i64 192), align 16, !tbaa !5
  store <4 x i32> <i32 52, i32 53, i32 54, i32 55>, ptr getelementptr inbounds (i8, ptr @A, i64 208), align 16, !tbaa !5
  store <4 x i32> <i32 56, i32 57, i32 58, i32 59>, ptr getelementptr inbounds (i8, ptr @A, i64 224), align 16, !tbaa !5
  store <4 x i32> <i32 60, i32 61, i32 62, i32 63>, ptr getelementptr inbounds (i8, ptr @A, i64 240), align 16, !tbaa !5
  store <4 x i32> <i32 64, i32 65, i32 66, i32 67>, ptr getelementptr inbounds (i8, ptr @A, i64 256), align 16, !tbaa !5
  store <4 x i32> <i32 68, i32 69, i32 70, i32 71>, ptr getelementptr inbounds (i8, ptr @A, i64 272), align 16, !tbaa !5
  store <4 x i32> <i32 72, i32 73, i32 74, i32 75>, ptr getelementptr inbounds (i8, ptr @A, i64 288), align 16, !tbaa !5
  store <4 x i32> <i32 76, i32 77, i32 78, i32 79>, ptr getelementptr inbounds (i8, ptr @A, i64 304), align 16, !tbaa !5
  store <4 x i32> <i32 80, i32 81, i32 82, i32 83>, ptr getelementptr inbounds (i8, ptr @A, i64 320), align 16, !tbaa !5
  store <4 x i32> <i32 84, i32 85, i32 86, i32 87>, ptr getelementptr inbounds (i8, ptr @A, i64 336), align 16, !tbaa !5
  store <4 x i32> <i32 88, i32 89, i32 90, i32 91>, ptr getelementptr inbounds (i8, ptr @A, i64 352), align 16, !tbaa !5
  store <4 x i32> <i32 92, i32 93, i32 94, i32 95>, ptr getelementptr inbounds (i8, ptr @A, i64 368), align 16, !tbaa !5
  store i32 96, ptr getelementptr inbounds (i8, ptr @A, i64 384), align 16, !tbaa !5
  store i32 97, ptr getelementptr inbounds (i8, ptr @A, i64 388), align 4, !tbaa !5
  store i32 98, ptr getelementptr inbounds (i8, ptr @A, i64 392), align 8, !tbaa !5
  store i32 99, ptr getelementptr inbounds (i8, ptr @A, i64 396), align 4, !tbaa !5
  ret void
}

attributes #0 = { nofree norecurse nosync nounwind memory(write, argmem: none, 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 = !{!6, !6, i64 0}
!6 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}


; Effective O3 passes: GlobalOptPass,IndVarSimplifyPass,InferAlignmentPass,InferFunctionAttrsPass,InstCombinePass,LoopLoadEliminationPass,LoopRotatePass,LoopUnrollPass,LoopVectorizePass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass