; LLVM IR from tommasocerruti/algolab-2024 :: src/week08/diet/solution.ll (Z12floor_to_intRKN4CGAL8QuotientINS_4GmpzEEE)

; 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 uwtable
define dso_local noundef i32 @_Z12floor_to_intRKN4CGAL8QuotientINS_4GmpzEEE(ptr noundef nonnull align 8 dereferenceable(16) %0) #0 {
  %2 = alloca ptr, align 8
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  store ptr %0, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #4
  %5 = load ptr, ptr %2, align 8, !tbaa !5
  %6 = call noundef double @_ZN4CGAL9to_doubleINS_8QuotientINS_4GmpzEEEEENS_22Real_embeddable_traitsIT_E9To_double11result_typeERKS5_(ptr noundef nonnull align 8 dereferenceable(16) %5)
  %7 = call double @llvm.floor.f64(double %6)
  %8 = fptosi double %7 to i32
  store i32 %8, ptr %3, align 4, !tbaa !9
  br label %9

9:                                                ; preds = %12, %1
  %10 = load ptr, ptr %2, align 8, !tbaa !5
  %11 = call noundef zeroext i1 @_ZN5boost14operators_implgtERKiRKN4CGAL8QuotientINS3_4GmpzEEE(ptr noundef nonnull align 4 dereferenceable(4) %3, ptr noundef nonnull align 8 dereferenceable(16) %10)
  br i1 %11, label %12, label %15

12:                                               ; preds = %9
  %13 = load i32, ptr %3, align 4, !tbaa !9
  %14 = sub nsw i32 %13, 1
  store i32 %14, ptr %3, align 4, !tbaa !9
  br label %9, !llvm.loop !11

15:                                               ; preds = %9
  br label %16

16:                                               ; preds = %21, %15
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #4
  %17 = load i32, ptr %3, align 4, !tbaa !9
  %18 = add nsw i32 %17, 1
  store i32 %18, ptr %4, align 4, !tbaa !9
  %19 = load ptr, ptr %2, align 8, !tbaa !5
  %20 = call noundef zeroext i1 @_ZN5boost14operators_implleERKiRKN4CGAL8QuotientINS3_4GmpzEEE(ptr noundef nonnull align 4 dereferenceable(4) %4, ptr noundef nonnull align 8 dereferenceable(16) %19)
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #4
  br i1 %20, label %21, label %24

21:                                               ; preds = %16
  %22 = load i32, ptr %3, align 4, !tbaa !9
  %23 = add nsw i32 %22, 1
  store i32 %23, ptr %3, align 4, !tbaa !9
  br label %16, !llvm.loop !13

24:                                               ; preds = %16
  %25 = load i32, ptr %3, align 4, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #4
  ret i32 %25
}

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

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local noundef double @_ZN4CGAL9to_doubleINS_8QuotientINS_4GmpzEEEEENS_22Real_embeddable_traitsIT_E9To_double11result_typeERKS5_(ptr noundef nonnull align 8 dereferenceable(16)) #2

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare double @llvm.floor.f64(double) #3

; Function Attrs: mustprogress uwtable
declare dso_local noundef zeroext i1 @_ZN5boost14operators_implgtERKiRKN4CGAL8QuotientINS3_4GmpzEEE(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 8 dereferenceable(16)) #0

; Function Attrs: mustprogress uwtable
declare dso_local noundef zeroext i1 @_ZN5boost14operators_implleERKiRKN4CGAL8QuotientINS3_4GmpzEEE(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 8 dereferenceable(16)) #0

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

attributes #0 = { mustprogress 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 = { inlinehint mustprogress 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 #3 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #4 = { 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 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = distinct !{!13, !12}


; 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 uwtable
define dso_local noundef i32 @_Z12floor_to_intRKN4CGAL8QuotientINS_4GmpzEEE(ptr noundef nonnull align 8 dereferenceable(16) %0) local_unnamed_addr #0 {
  %2 = alloca i32, align 4
  %3 = alloca i32, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %2) #4
  %4 = tail call noundef double @_ZN4CGAL9to_doubleINS_8QuotientINS_4GmpzEEEEENS_22Real_embeddable_traitsIT_E9To_double11result_typeERKS5_(ptr noundef nonnull align 8 dereferenceable(16) %0)
  %5 = tail call double @llvm.floor.f64(double %4)
  %6 = fptosi double %5 to i32
  store i32 %6, ptr %2, align 4, !tbaa !5
  %7 = call noundef zeroext i1 @_ZN5boost14operators_implgtERKiRKN4CGAL8QuotientINS3_4GmpzEEE(ptr noundef nonnull align 4 dereferenceable(4) %2, ptr noundef nonnull align 8 dereferenceable(16) %0)
  br i1 %7, label %.lr.ph, label %.preheader

.preheader:                                       ; preds = %.lr.ph, %1
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %3) #4
  %8 = load i32, ptr %2, align 4, !tbaa !5
  %9 = add nsw i32 %8, 1
  store i32 %9, ptr %3, align 4, !tbaa !5
  %10 = call noundef zeroext i1 @_ZN5boost14operators_implleERKiRKN4CGAL8QuotientINS3_4GmpzEEE(ptr noundef nonnull align 4 dereferenceable(4) %3, ptr noundef nonnull align 8 dereferenceable(16) %0)
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %3) #4
  br i1 %10, label %.lr.ph3, label %._crit_edge

.lr.ph:                                           ; preds = %1, %.lr.ph
  %11 = load i32, ptr %2, align 4, !tbaa !5
  %12 = add nsw i32 %11, -1
  store i32 %12, ptr %2, align 4, !tbaa !5
  %13 = call noundef zeroext i1 @_ZN5boost14operators_implgtERKiRKN4CGAL8QuotientINS3_4GmpzEEE(ptr noundef nonnull align 4 dereferenceable(4) %2, ptr noundef nonnull align 8 dereferenceable(16) %0)
  br i1 %13, label %.lr.ph, label %.preheader, !llvm.loop !9

.lr.ph3:                                          ; preds = %.preheader, %.lr.ph3
  %14 = load i32, ptr %2, align 4, !tbaa !5
  %15 = add nsw i32 %14, 1
  store i32 %15, ptr %2, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %3) #4
  %16 = add nsw i32 %14, 2
  store i32 %16, ptr %3, align 4, !tbaa !5
  %17 = call noundef zeroext i1 @_ZN5boost14operators_implleERKiRKN4CGAL8QuotientINS3_4GmpzEEE(ptr noundef nonnull align 4 dereferenceable(4) %3, ptr noundef nonnull align 8 dereferenceable(16) %0)
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %3) #4
  br i1 %17, label %.lr.ph3, label %._crit_edge, !llvm.loop !11

._crit_edge:                                      ; preds = %.lr.ph3, %.preheader
  %18 = load i32, ptr %2, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %2) #4
  ret i32 %18
}

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

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local noundef double @_ZN4CGAL9to_doubleINS_8QuotientINS_4GmpzEEEEENS_22Real_embeddable_traitsIT_E9To_double11result_typeERKS5_(ptr noundef nonnull align 8 dereferenceable(16)) local_unnamed_addr #2

; Function Attrs: mustprogress nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare double @llvm.floor.f64(double) #3

; Function Attrs: mustprogress uwtable
declare dso_local noundef zeroext i1 @_ZN5boost14operators_implgtERKiRKN4CGAL8QuotientINS3_4GmpzEEE(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 8 dereferenceable(16)) local_unnamed_addr #0

; Function Attrs: mustprogress uwtable
declare dso_local noundef zeroext i1 @_ZN5boost14operators_implleERKiRKN4CGAL8QuotientINS3_4GmpzEEE(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 8 dereferenceable(16)) local_unnamed_addr #0

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

attributes #0 = { mustprogress 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 nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { inlinehint mustprogress 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 #3 = { mustprogress nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #4 = { 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++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}
!11 = distinct !{!11, !10}


; Effective O3 passes: GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,SROAPass,SimplifyCFGPass,TailCallElimPass