; LLVM IR from kmilo17pet/qlibs :: qffmath (qFFMath_FPClassify)

; 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 i32 @qFFMath_FPClassify(float noundef %0) #0 {
  %2 = alloca float, align 4
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  store float %0, ptr %2, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #3
  store i32 0, ptr %3, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #3
  call void @llvm.memcpy.p0.p0.i64(ptr align 4 %3, ptr align 4 %2, i64 4, i1 false)
  %5 = load i32, ptr %3, align 4, !tbaa !9
  %6 = and i32 %5, 2147483647
  store i32 %6, ptr %3, align 4, !tbaa !9
  %7 = load i32, ptr %3, align 4, !tbaa !9
  %8 = icmp eq i32 0, %7
  br i1 %8, label %9, label %10

9:                                                ; preds = %1
  store i32 0, ptr %4, align 4, !tbaa !9
  br label %26

10:                                               ; preds = %1
  %11 = load i32, ptr %3, align 4, !tbaa !9
  %12 = icmp ult i32 %11, 8388608
  br i1 %12, label %13, label %14

13:                                               ; preds = %10
  store i32 1, ptr %4, align 4, !tbaa !9
  br label %25

14:                                               ; preds = %10
  %15 = load i32, ptr %3, align 4, !tbaa !9
  %16 = icmp ult i32 %15, 2139095040
  br i1 %16, label %17, label %18

17:                                               ; preds = %14
  store i32 2, ptr %4, align 4, !tbaa !9
  br label %24

18:                                               ; preds = %14
  %19 = load i32, ptr %3, align 4, !tbaa !9
  %20 = icmp eq i32 2139095040, %19
  br i1 %20, label %21, label %22

21:                                               ; preds = %18
  store i32 3, ptr %4, align 4, !tbaa !9
  br label %23

22:                                               ; preds = %18
  store i32 4, ptr %4, align 4, !tbaa !9
  br label %23

23:                                               ; preds = %22, %21
  br label %24

24:                                               ; preds = %23, %17
  br label %25

25:                                               ; preds = %24, %13
  br label %26

26:                                               ; preds = %25, %9
  %27 = load i32, ptr %4, align 4, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #3
  ret i32 %27
}

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

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #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 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
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/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 norecurse nosync nounwind willreturn memory(none) uwtable
define dso_local range(i32 0, 5) i32 @qFFMath_FPClassify(float noundef %0) local_unnamed_addr #0 {
  %2 = tail call float @llvm.fabs.f32(float %0)
  %3 = bitcast float %2 to i32
  %4 = icmp eq i32 %3, 0
  br i1 %4, label %11, label %5

5:                                                ; preds = %1
  %6 = icmp ult i32 %3, 8388608
  br i1 %6, label %11, label %7

7:                                                ; preds = %5
  %8 = icmp ult i32 %3, 2139095040
  br i1 %8, label %11, label %9

9:                                                ; preds = %7
  %10 = icmp eq i32 %3, 2139095040
  %. = select i1 %10, i32 3, i32 4
  br label %11

11:                                               ; preds = %9, %7, %5, %1
  %.0 = phi i32 [ 0, %1 ], [ 1, %5 ], [ 2, %7 ], [ %., %9 ]
  ret i32 %.0
}

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare float @llvm.fabs.f32(float) #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: GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass