; LLVM IR from clunietp/libgmsd :: test (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"

; Function Attrs: nounwind uwtable
define dso_local double @round_to(double noundef %0, i32 noundef %1) #0 {
  %3 = alloca double, align 8
  %4 = alloca i32, align 4
  %5 = alloca double, align 8
  %6 = alloca double, align 8
  store double %0, ptr %3, align 8, !tbaa !5
  store i32 %1, ptr %4, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #3
  %7 = load i32, ptr %4, align 4, !tbaa !9
  %8 = uitofp i32 %7 to double
  %9 = call double @pow(double noundef 1.000000e+01, double noundef %8) #3
  store double %9, ptr %5, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #3
  %10 = load double, ptr %3, align 8, !tbaa !5
  %11 = load double, ptr %5, align 8, !tbaa !5
  %12 = fmul double %10, %11
  store double %12, ptr %6, align 8, !tbaa !5
  %13 = load double, ptr %6, align 8, !tbaa !5
  %14 = load double, ptr %6, align 8, !tbaa !5
  %15 = fptosi double %14 to i32
  %16 = sitofp i32 %15 to double
  %17 = fsub double %13, %16
  %18 = fcmp oge double %17, 5.000000e-01
  br i1 %18, label %19, label %27

19:                                               ; preds = %2
  %20 = load double, ptr %6, align 8, !tbaa !5
  %21 = fptosi double %20 to i32
  %22 = load double, ptr %3, align 8, !tbaa !5
  %23 = fcmp ogt double %22, 0.000000e+00
  %24 = zext i1 %23 to i64
  %25 = select i1 %23, i32 1, i32 -1
  %26 = add nsw i32 %21, %25
  br label %30

27:                                               ; preds = %2
  %28 = load double, ptr %6, align 8, !tbaa !5
  %29 = fptosi double %28 to i32
  br label %30

30:                                               ; preds = %27, %19
  %31 = phi i32 [ %26, %19 ], [ %29, %27 ]
  %32 = sitofp i32 %31 to double
  %33 = load double, ptr %5, align 8, !tbaa !5
  %34 = fdiv double %32, %33
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #3
  ret double %34
}

; 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: 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 "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/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}


; 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 double @round_to(double noundef %0, i32 noundef %1) local_unnamed_addr #0 {
  %3 = uitofp i32 %1 to double
  %4 = tail call double @pow(double noundef 1.000000e+01, double noundef %3) #2
  %5 = fmul double %4, %0
  %6 = fptosi double %5 to i32
  %7 = sitofp i32 %6 to double
  %8 = fsub double %5, %7
  %9 = fcmp ult double %8, 5.000000e-01
  %10 = fcmp ogt double %0, 0.000000e+00
  %11 = select i1 %10, i32 1, i32 -1
  %12 = select i1 %9, i32 0, i32 %11
  %13 = add nsw i32 %12, %6
  %14 = sitofp i32 %13 to double
  %15 = fdiv double %14, %4
  ret double %15
}

; Function Attrs: mustprogress nofree nounwind willreturn memory(write)
declare double @pow(double noundef, 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: EarlyCSEPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,ReassociatePass,SROAPass,SimplifyCFGPass,TailCallElimPass