; LLVM IR from tangjz/acm-icpc :: codeforces/gym/100506F.ll (Z4dcmpd)

; 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 i32 @_Z4dcmpd(double noundef %0) #0 {
  %2 = alloca i32, align 4
  %3 = alloca double, align 8
  store double %0, ptr %3, align 8, !tbaa !5
  %4 = load double, ptr %3, align 8, !tbaa !5
  %5 = fcmp olt double -1.000000e-08, %4
  br i1 %5, label %6, label %10

6:                                                ; preds = %1
  %7 = load double, ptr %3, align 8, !tbaa !5
  %8 = fcmp olt double %7, 1.000000e-08
  br i1 %8, label %9, label %10

9:                                                ; preds = %6
  store i32 0, ptr %2, align 4
  br label %15

10:                                               ; preds = %6, %1
  %11 = load double, ptr %3, align 8, !tbaa !5
  %12 = fcmp olt double %11, 0.000000e+00
  %13 = zext i1 %12 to i64
  %14 = select i1 %12, i32 -1, i32 1
  store i32 %14, ptr %2, align 4
  br label %15

15:                                               ; preds = %10, %9
  %16 = load i32, ptr %2, align 4
  ret i32 %16
}

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" }

!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"}


; 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 norecurse nosync nounwind willreturn memory(none) uwtable
define dso_local noundef range(i32 -1, 2) i32 @_Z4dcmpd(double noundef %0) local_unnamed_addr #0 {
  %2 = tail call double @llvm.fabs.f64(double %0)
  %or.cond = fcmp olt double %2, 1.000000e-08
  %3 = fcmp olt double %0, 0.000000e+00
  %4 = select i1 %3, i32 -1, i32 1
  %.0 = select i1 %or.cond, i32 0, i32 %4
  ret i32 %.0
}

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

attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn memory(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" }
attributes #1 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }

!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,IPSCCPPass,InstCombinePass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass