; LLVM IR from xboot/libcg :: src (xft)

; 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
define dso_local i64 @XCG_FT_DivFix(i64 noundef %0, i64 noundef %1) #1 {
  %3 = alloca i64, align 8
  %4 = alloca i64, align 8
  %5 = alloca i32, align 4
  %6 = alloca i64, align 8
  store i64 %0, ptr %3, align 8, !tbaa !5
  store i64 %1, ptr %4, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #2
  store i32 1, ptr %5, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #2
  br label %7

7:                                                ; preds = %2
  %8 = load i64, ptr %3, align 8, !tbaa !5
  %9 = icmp slt i64 %8, 0
  br i1 %9, label %10, label %15

10:                                               ; preds = %7
  %11 = load i64, ptr %3, align 8, !tbaa !5
  %12 = sub nsw i64 0, %11
  store i64 %12, ptr %3, align 8, !tbaa !5
  %13 = load i32, ptr %5, align 4, !tbaa !9
  %14 = sub nsw i32 0, %13
  store i32 %14, ptr %5, align 4, !tbaa !9
  br label %15

15:                                               ; preds = %10, %7
  br label %16

16:                                               ; preds = %15
  br label %17

17:                                               ; preds = %16
  br label %18

18:                                               ; preds = %17
  %19 = load i64, ptr %4, align 8, !tbaa !5
  %20 = icmp slt i64 %19, 0
  br i1 %20, label %21, label %26

21:                                               ; preds = %18
  %22 = load i64, ptr %4, align 8, !tbaa !5
  %23 = sub nsw i64 0, %22
  store i64 %23, ptr %4, align 8, !tbaa !5
  %24 = load i32, ptr %5, align 4, !tbaa !9
  %25 = sub nsw i32 0, %24
  store i32 %25, ptr %5, align 4, !tbaa !9
  br label %26

26:                                               ; preds = %21, %18
  br label %27

27:                                               ; preds = %26
  br label %28

28:                                               ; preds = %27
  %29 = load i64, ptr %4, align 8, !tbaa !5
  %30 = icmp sgt i64 %29, 0
  br i1 %30, label %31, label %39

31:                                               ; preds = %28
  %32 = load i64, ptr %3, align 8, !tbaa !5
  %33 = shl i64 %32, 16
  %34 = load i64, ptr %4, align 8, !tbaa !5
  %35 = ashr i64 %34, 1
  %36 = add i64 %33, %35
  %37 = load i64, ptr %4, align 8, !tbaa !5
  %38 = udiv i64 %36, %37
  br label %40

39:                                               ; preds = %28
  br label %40

40:                                               ; preds = %39, %31
  %41 = phi i64 [ %38, %31 ], [ 2147483647, %39 ]
  store i64 %41, ptr %6, align 8, !tbaa !5
  %42 = load i32, ptr %5, align 4, !tbaa !9
  %43 = icmp slt i32 %42, 0
  br i1 %43, label %44, label %47

44:                                               ; preds = %40
  %45 = load i64, ptr %6, align 8, !tbaa !5
  %46 = sub nsw i64 0, %45
  br label %49

47:                                               ; preds = %40
  %48 = load i64, ptr %6, align 8, !tbaa !5
  br label %49

49:                                               ; preds = %47, %44
  %50 = phi i64 [ %46, %44 ], [ %48, %47 ]
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #2
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #2
  ret i64 %50
}

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 = !{!"long", !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 i64 @XCG_FT_DivFix(i64 noundef %0, i64 noundef %1) local_unnamed_addr #0 {
  %.not = icmp eq i64 %1, 0
  br i1 %.not, label %8, label %3

3:                                                ; preds = %2
  %.014 = tail call i64 @llvm.abs.i64(i64 %1, i1 true)
  %spec.select19 = tail call i64 @llvm.abs.i64(i64 %0, i1 true)
  %4 = shl i64 %spec.select19, 16
  %5 = lshr i64 %.014, 1
  %6 = add i64 %5, %4
  %7 = udiv i64 %6, %.014
  br label %8

8:                                                ; preds = %2, %3
  %9 = phi i64 [ %7, %3 ], [ 2147483647, %2 ]
  %10 = xor i64 %1, %0
  %11 = icmp slt i64 %10, 0
  %12 = sub nsw i64 0, %9
  %13 = select i1 %11, i64 %12, i64 %9
  ret i64 %13
}

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare i64 @llvm.abs.i64(i64, i1 immarg) #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,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,ReassociatePass,SROAPass,SimplifyCFGPass,TailCallElimPass