; LLVM IR from AnneLivia/Competitive-Programming :: Online Judges/URI/1155 (main)

; 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"

@.str = external hidden unnamed_addr constant [6 x i8], align 1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #0 {
  %1 = alloca i32, align 4
  %2 = alloca float, align 4
  %3 = alloca float, align 4
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #3
  store float 0.000000e+00, ptr %2, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #3
  store float 1.000000e+00, ptr %3, align 4, !tbaa !5
  br label %4

4:                                                ; preds = %7, %0
  %5 = load float, ptr %3, align 4, !tbaa !5
  %6 = fcmp ole float %5, 1.000000e+02
  br i1 %6, label %7, label %14

7:                                                ; preds = %4
  %8 = load float, ptr %3, align 4, !tbaa !5
  %9 = fdiv float 1.000000e+00, %8
  %10 = load float, ptr %2, align 4, !tbaa !5
  %11 = fadd float %9, %10
  store float %11, ptr %2, align 4, !tbaa !5
  %12 = load float, ptr %3, align 4, !tbaa !5
  %13 = fadd float %12, 1.000000e+00
  store float %13, ptr %3, align 4, !tbaa !5
  br label %4, !llvm.loop !9

14:                                               ; preds = %4
  %15 = load float, ptr %2, align 4, !tbaa !5
  %16 = fpext float %15 to double
  %17 = call i32 (ptr, ...) @printf(ptr noundef @.str, double noundef %16)
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #3
  ret i32 0
}

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

declare i32 @printf(ptr noundef, ...) #2

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

attributes #0 = { mustprogress norecurse 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 = { "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 #3 = { 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 = !{!"float", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple 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"

@.str = external hidden unnamed_addr constant [6 x i8], align 1

; Function Attrs: mustprogress nofree norecurse nounwind uwtable
define dso_local noundef i32 @main() local_unnamed_addr #0 {
  br label %1

1:                                                ; preds = %1, %0
  %.07.int = phi i32 [ 1, %0 ], [ %.int.4, %1 ]
  %.056 = phi float [ 0.000000e+00, %0 ], [ %11, %1 ]
  %indvar.conv = uitofp nneg i32 %.07.int to float
  %2 = fdiv float 1.000000e+00, %indvar.conv
  %3 = fadd float %.056, %2
  %.int = add nuw nsw i32 %.07.int, 1
  %indvar.conv.1 = uitofp nneg i32 %.int to float
  %4 = fdiv float 1.000000e+00, %indvar.conv.1
  %5 = fadd float %3, %4
  %.int.1 = add nuw nsw i32 %.07.int, 2
  %indvar.conv.2 = uitofp nneg i32 %.int.1 to float
  %6 = fdiv float 1.000000e+00, %indvar.conv.2
  %7 = fadd float %5, %6
  %.int.2 = add nuw nsw i32 %.07.int, 3
  %indvar.conv.3 = uitofp nneg i32 %.int.2 to float
  %8 = fdiv float 1.000000e+00, %indvar.conv.3
  %9 = fadd float %7, %8
  %.int.3 = add nuw nsw i32 %.07.int, 4
  %indvar.conv.4 = uitofp nneg i32 %.int.3 to float
  %10 = fdiv float 1.000000e+00, %indvar.conv.4
  %11 = fadd float %9, %10
  %.int.4 = add nuw nsw i32 %.07.int, 5
  %exitcond.4 = icmp eq i32 %.int.4, 101
  br i1 %exitcond.4, label %12, label %1, !llvm.loop !5

12:                                               ; preds = %1
  %13 = fpext float %11 to double
  %14 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str, double noundef %13)
  ret i32 0
}

; Function Attrs: nofree nounwind
declare noundef i32 @printf(ptr nocapture noundef readonly, ...) local_unnamed_addr #1

attributes #0 = { mustprogress nofree norecurse 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 = { nofree nounwind "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"}


; Effective O3 passes: GVNPass,GlobalOptPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,LCSSAPass,LoopRotatePass,LoopUnrollPass,PostOrderFunctionAttrsPass,ReassociatePass,SROAPass,TailCallElimPass