; LLVM IR from div-bargali/Data-Structures-and-Algorithms :: C++/Algorithms/Mathematical/Square_root.ll (Z13sqrtIteratived)

; 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: mustprogress nounwind uwtable
define dso_local noundef double @_Z13sqrtIteratived(double noundef %0) #0 {
  %2 = alloca double, align 8
  %3 = alloca double, align 8
  %4 = alloca i32, align 4
  store double %0, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #3
  %5 = load double, ptr %2, align 8, !tbaa !5
  %6 = load double, ptr %2, align 8, !tbaa !5
  %7 = call double @log10(double noundef %6) #3
  %8 = call double @pow(double noundef 3.000000e-01, double noundef %7) #3
  %9 = fmul double %5, %8
  store double %9, ptr %3, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #3
  store i32 0, ptr %4, align 4, !tbaa !9
  br label %10

10:                                               ; preds = %21, %1
  %11 = load i32, ptr %4, align 4, !tbaa !9
  %12 = icmp slt i32 %11, 5
  br i1 %12, label %14, label %13

13:                                               ; preds = %10
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #3
  br label %24

14:                                               ; preds = %10
  %15 = load double, ptr %3, align 8, !tbaa !5
  %16 = load double, ptr %2, align 8, !tbaa !5
  %17 = load double, ptr %3, align 8, !tbaa !5
  %18 = fdiv double %16, %17
  %19 = fadd double %15, %18
  %20 = fmul double %19, 5.000000e-01
  store double %20, ptr %3, align 8, !tbaa !5
  br label %21

21:                                               ; preds = %14
  %22 = load i32, ptr %4, align 4, !tbaa !9
  %23 = add nsw i32 %22, 1
  store i32 %23, ptr %4, align 4, !tbaa !9
  br label %10, !llvm.loop !11

24:                                               ; preds = %13
  %25 = load double, ptr %3, align 8, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #3
  ret double %25
}

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

; Function Attrs: nounwind
declare double @pow(double noundef, double noundef) #2

; Function Attrs: nounwind
declare double @log10(double 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 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 "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 = !{!"double", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple 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 nounwind willreturn memory(write) uwtable
define dso_local noundef double @_Z13sqrtIteratived(double noundef %0) local_unnamed_addr #0 {
  %2 = tail call double @log10(double noundef %0) #2
  %3 = tail call double @pow(double noundef 3.000000e-01, double noundef %2) #2
  %4 = fmul double %3, %0
  %5 = fdiv double %0, %4
  %6 = fadd double %4, %5
  %7 = fmul double %6, 5.000000e-01
  %8 = fdiv double %0, %7
  %9 = fadd double %7, %8
  %10 = fmul double %9, 5.000000e-01
  %11 = fdiv double %0, %10
  %12 = fadd double %10, %11
  %13 = fmul double %12, 5.000000e-01
  %14 = fdiv double %0, %13
  %15 = fadd double %13, %14
  %16 = fmul double %15, 5.000000e-01
  %17 = fdiv double %0, %16
  %18 = fadd double %16, %17
  %19 = fmul double %18, 5.000000e-01
  ret double %19
}

; Function Attrs: mustprogress nofree nounwind willreturn memory(write)
declare double @pow(double noundef, double noundef) local_unnamed_addr #1

; Function Attrs: mustprogress nofree nounwind willreturn memory(write)
declare double @log10(double noundef) local_unnamed_addr #1

attributes #0 = { mustprogress nofree nounwind willreturn memory(write) 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 = { mustprogress nofree nounwind willreturn memory(write) "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)"}


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