; LLVM IR from gvinciguerra/PGM-index :: tuner/tuner.ll (Z19guess_epsilon_spaceddddd)

; 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: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef double @_Z21target_space_functionddddd(double noundef, double noundef, double noundef, double noundef, double noundef) #1

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare double @llvm.maxnum.f64(double, double) #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef double @_Z32target_space_function_derivativeddddd(double noundef, double noundef, double noundef, double noundef, double noundef) #1

; Function Attrs: mustprogress uwtable
define dso_local noundef double @_Z19guess_epsilon_spaceddddd(double noundef %0, double noundef %1, double noundef %2, double noundef %3, double noundef %4) #3 {
  %6 = alloca double, align 8
  %7 = alloca double, align 8
  %8 = alloca double, align 8
  %9 = alloca double, align 8
  %10 = alloca double, align 8
  %11 = alloca double, align 8
  %12 = alloca double, align 8
  %13 = alloca i32, align 4
  store double %0, ptr %6, align 8, !tbaa !5
  store double %1, ptr %7, align 8, !tbaa !5
  store double %2, ptr %8, align 8, !tbaa !5
  store double %3, ptr %9, align 8, !tbaa !5
  store double %4, ptr %10, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %11) #5
  %14 = load double, ptr %6, align 8, !tbaa !5
  %15 = load double, ptr %7, align 8, !tbaa !5
  %16 = load double, ptr %8, align 8, !tbaa !5
  %17 = load double, ptr %9, align 8, !tbaa !5
  %18 = load double, ptr %10, align 8, !tbaa !5
  %19 = call noundef double @_Z21target_space_functionddddd(double noundef %14, double noundef %15, double noundef %16, double noundef %17, double noundef %18)
  store double %19, ptr %11, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %12) #5
  %20 = load double, ptr %6, align 8, !tbaa !5
  %21 = load double, ptr %7, align 8, !tbaa !5
  %22 = load double, ptr %8, align 8, !tbaa !5
  %23 = load double, ptr %9, align 8, !tbaa !5
  %24 = load double, ptr %10, align 8, !tbaa !5
  %25 = call noundef double @_Z32target_space_function_derivativeddddd(double noundef %20, double noundef %21, double noundef %22, double noundef %23, double noundef %24)
  store double %25, ptr %12, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %13) #5
  store i32 0, ptr %13, align 4, !tbaa !9
  br label %26

26:                                               ; preds = %38, %5
  %27 = load double, ptr %11, align 8, !tbaa !5
  %28 = load double, ptr %12, align 8, !tbaa !5
  %29 = fdiv double %27, %28
  %30 = call noundef double @_ZSt3absd(double noundef %29)
  %31 = fcmp oge double %30, 1.000000e-04
  br i1 %31, label %32, label %36

32:                                               ; preds = %26
  %33 = load i32, ptr %13, align 4, !tbaa !9
  %34 = add nsw i32 %33, 1
  store i32 %34, ptr %13, align 4, !tbaa !9
  %35 = icmp slt i32 %33, 100
  br label %36

36:                                               ; preds = %32, %26
  %37 = phi i1 [ false, %26 ], [ %35, %32 ]
  br i1 %37, label %38, label %56

38:                                               ; preds = %36
  %39 = load double, ptr %6, align 8, !tbaa !5
  %40 = load double, ptr %7, align 8, !tbaa !5
  %41 = load double, ptr %8, align 8, !tbaa !5
  %42 = load double, ptr %9, align 8, !tbaa !5
  %43 = load double, ptr %10, align 8, !tbaa !5
  %44 = call noundef double @_Z21target_space_functionddddd(double noundef %39, double noundef %40, double noundef %41, double noundef %42, double noundef %43)
  store double %44, ptr %11, align 8, !tbaa !5
  %45 = load double, ptr %6, align 8, !tbaa !5
  %46 = load double, ptr %7, align 8, !tbaa !5
  %47 = load double, ptr %8, align 8, !tbaa !5
  %48 = load double, ptr %9, align 8, !tbaa !5
  %49 = load double, ptr %10, align 8, !tbaa !5
  %50 = call noundef double @_Z32target_space_function_derivativeddddd(double noundef %45, double noundef %46, double noundef %47, double noundef %48, double noundef %49)
  store double %50, ptr %12, align 8, !tbaa !5
  %51 = load double, ptr %6, align 8, !tbaa !5
  %52 = load double, ptr %11, align 8, !tbaa !5
  %53 = load double, ptr %12, align 8, !tbaa !5
  %54 = fdiv double %52, %53
  %55 = fsub double %51, %54
  store double %55, ptr %6, align 8, !tbaa !5
  br label %26, !llvm.loop !11

56:                                               ; preds = %36
  %57 = load double, ptr %6, align 8, !tbaa !5
  %58 = call double @llvm.maxnum.f64(double 0.000000e+00, double %57)
  call void @llvm.lifetime.end.p0(i64 4, ptr %13) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %12) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #5
  ret double %58
}

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef double @_ZSt3absd(double noundef) #4

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #2 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #3 = { mustprogress 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 #4 = { inlinehint 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 #5 = { 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 nounwind uwtable
declare dso_local noundef double @_Z21target_space_functionddddd(double noundef, double noundef, double noundef, double noundef, double noundef) local_unnamed_addr #0

; Function Attrs: mustprogress nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare double @llvm.maxnum.f64(double, double) #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef double @_Z32target_space_function_derivativeddddd(double noundef, double noundef, double noundef, double noundef, double noundef) local_unnamed_addr #0

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef double @_Z19guess_epsilon_spaceddddd(double noundef %0, double noundef %1, double noundef %2, double noundef %3, double noundef %4) local_unnamed_addr #0 {
  %6 = tail call noundef double @_Z21target_space_functionddddd(double noundef %0, double noundef %1, double noundef %2, double noundef %3, double noundef %4)
  %7 = tail call noundef double @_Z32target_space_function_derivativeddddd(double noundef %0, double noundef %1, double noundef %2, double noundef %3, double noundef %4)
  %8 = fdiv double %6, %7
  %9 = tail call noundef double @_ZSt3absd(double noundef %8)
  %10 = fcmp ult double %9, 1.000000e-04
  br i1 %10, label %.critedge, label %.lr.ph

.lr.ph:                                           ; preds = %5, %.lr.ph
  %.030 = phi i32 [ %11, %.lr.ph ], [ 0, %5 ]
  %.02829 = phi double [ %15, %.lr.ph ], [ %0, %5 ]
  %11 = add nuw nsw i32 %.030, 1
  %12 = tail call noundef double @_Z21target_space_functionddddd(double noundef %.02829, double noundef %1, double noundef %2, double noundef %3, double noundef %4)
  %13 = tail call noundef double @_Z32target_space_function_derivativeddddd(double noundef %.02829, double noundef %1, double noundef %2, double noundef %3, double noundef %4)
  %14 = fdiv double %12, %13
  %15 = fsub double %.02829, %14
  %16 = tail call noundef double @_ZSt3absd(double noundef %14)
  %17 = fcmp oge double %16, 1.000000e-04
  %18 = icmp ult i32 %.030, 99
  %or.cond = select i1 %17, i1 %18, i1 false
  br i1 %or.cond, label %.lr.ph, label %.critedge, !llvm.loop !5

.critedge:                                        ; preds = %.lr.ph, %5
  %.028.lcssa = phi double [ %0, %5 ], [ %15, %.lr.ph ]
  %19 = tail call double @llvm.maxnum.f64(double %.028.lcssa, double 0.000000e+00)
  ret double %19
}

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef double @_ZSt3absd(double noundef) local_unnamed_addr #2

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 = { mustprogress nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #2 = { inlinehint 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" }

!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,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass