; LLVM IR from kmilo17pet/qlibs :: qfp16 (qFP16_IPow)

; 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: nounwind uwtable
declare dso_local i32 @qFP16_Mul(i32 noundef, i32 noundef) #1

; Function Attrs: nounwind uwtable
define dso_local i32 @qFP16_IPow(i32 noundef %0, i32 noundef %1) #1 {
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  store i32 %0, ptr %3, align 4, !tbaa !5
  store i32 %1, ptr %4, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #2
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #2
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #2
  store i32 65536, ptr %5, align 4, !tbaa !5
  %8 = load i32, ptr %4, align 4, !tbaa !5
  %9 = ashr i32 %8, 16
  store i32 %9, ptr %6, align 4, !tbaa !5
  %10 = load i32, ptr %6, align 4, !tbaa !5
  %11 = icmp eq i32 0, %10
  br i1 %11, label %12, label %13

12:                                               ; preds = %2
  store i32 65536, ptr %5, align 4, !tbaa !5
  br label %36

13:                                               ; preds = %2
  %14 = load i32, ptr %6, align 4, !tbaa !5
  %15 = icmp eq i32 65536, %14
  br i1 %15, label %16, label %18

16:                                               ; preds = %13
  %17 = load i32, ptr %3, align 4, !tbaa !5
  store i32 %17, ptr %5, align 4, !tbaa !5
  br label %35

18:                                               ; preds = %13
  store i32 0, ptr %7, align 4, !tbaa !5
  br label %19

19:                                               ; preds = %31, %18
  %20 = load i32, ptr %7, align 4, !tbaa !5
  %21 = load i32, ptr %6, align 4, !tbaa !5
  %22 = icmp slt i32 %20, %21
  br i1 %22, label %23, label %34

23:                                               ; preds = %19
  %24 = load i32, ptr %3, align 4, !tbaa !5
  %25 = load i32, ptr %5, align 4, !tbaa !5
  %26 = call i32 @qFP16_Mul(i32 noundef %24, i32 noundef %25)
  store i32 %26, ptr %5, align 4, !tbaa !5
  %27 = load i32, ptr %5, align 4, !tbaa !5
  %28 = icmp eq i32 -2147483648, %27
  br i1 %28, label %29, label %30

29:                                               ; preds = %23
  br label %34

30:                                               ; preds = %23
  br label %31

31:                                               ; preds = %30
  %32 = load i32, ptr %7, align 4, !tbaa !5
  %33 = add nsw i32 %32, 1
  store i32 %33, ptr %7, align 4, !tbaa !5
  br label %19, !llvm.loop !9

34:                                               ; preds = %29, %19
  br label %35

35:                                               ; preds = %34, %16
  br label %36

36:                                               ; preds = %35, %12
  %37 = load i32, ptr %5, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #2
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #2
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #2
  ret i32 %37
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 = { 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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"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: nounwind uwtable
declare dso_local i32 @qFP16_Mul(i32 noundef, i32 noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local i32 @qFP16_IPow(i32 noundef %0, i32 noundef %1) local_unnamed_addr #0 {
  %3 = ashr i32 %1, 16
  %4 = icmp ugt i32 %1, 65535
  %5 = icmp sgt i32 %3, 0
  %or.cond = and i1 %4, %5
  br i1 %or.cond, label %.lr.ph, label %.loopexit

6:                                                ; preds = %.lr.ph
  %7 = add nuw nsw i32 %.016, 1
  %exitcond.not = icmp eq i32 %7, %3
  br i1 %exitcond.not, label %.loopexit, label %.lr.ph, !llvm.loop !5

.lr.ph:                                           ; preds = %2, %6
  %.016 = phi i32 [ %7, %6 ], [ 0, %2 ]
  %.01115 = phi i32 [ %8, %6 ], [ 65536, %2 ]
  %8 = tail call i32 @qFP16_Mul(i32 noundef %0, i32 noundef %.01115)
  %9 = icmp eq i32 %8, -2147483648
  br i1 %9, label %.loopexit, label %6

.loopexit:                                        ; preds = %6, %.lr.ph, %2
  %.1 = phi i32 [ 65536, %2 ], [ %8, %6 ], [ -2147483648, %.lr.ph ]
  ret i32 %.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" }

!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: EarlyCSEPass,GlobalOptPass,IPSCCPPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,SROAPass,SimplifyCFGPass,TailCallElimPass