; LLVM IR from ShahjalalShohag/code-library :: Geometry/Geometry 2D.ll (Z13get_directionRSt6vectorI2PTSaIS0_EE)

; 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"

%struct.PT = type { double, double }

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i32 @_Z4signd(double noundef) #0

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN2PTC2ERKS_(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(16)) unnamed_addr #0 align 2

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

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef double @_Z5cross2PTS_(ptr noundef, ptr noundef) #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorI2PTSaIS0_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorI2PTSaIS0_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #0 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef zeroext i1 @_Z13get_directionRSt6vectorI2PTSaIS0_EE(ptr noundef nonnull align 8 dereferenceable(24) %0) #3 {
  %2 = alloca i1, align 1
  %3 = alloca ptr, align 8
  %4 = alloca double, align 8
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = alloca %struct.PT, align 8
  %8 = alloca %struct.PT, align 8
  %9 = alloca i32, align 4
  store ptr %0, ptr %3, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #4
  store double 0.000000e+00, ptr %4, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #4
  %10 = load ptr, ptr %3, align 8, !tbaa !5
  %11 = call noundef i64 @_ZNKSt6vectorI2PTSaIS0_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %10) #4
  %12 = trunc i64 %11 to i32
  store i32 %12, ptr %5, align 4, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #4
  store i32 0, ptr %6, align 4, !tbaa !11
  br label %13

13:                                               ; preds = %33, %1
  %14 = load i32, ptr %6, align 4, !tbaa !11
  %15 = load i32, ptr %5, align 4, !tbaa !11
  %16 = icmp slt i32 %14, %15
  br i1 %16, label %18, label %17

17:                                               ; preds = %13
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #4
  br label %36

18:                                               ; preds = %13
  %19 = load ptr, ptr %3, align 8, !tbaa !5
  %20 = load i32, ptr %6, align 4, !tbaa !11
  %21 = sext i32 %20 to i64
  %22 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorI2PTSaIS0_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %19, i64 noundef %21) #4
  call void @_ZN2PTC2ERKS_(ptr noundef nonnull align 8 dereferenceable(16) %7, ptr noundef nonnull align 8 dereferenceable(16) %22)
  %23 = load ptr, ptr %3, align 8, !tbaa !5
  %24 = load i32, ptr %6, align 4, !tbaa !11
  %25 = add nsw i32 %24, 1
  %26 = load i32, ptr %5, align 4, !tbaa !11
  %27 = srem i32 %25, %26
  %28 = sext i32 %27 to i64
  %29 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorI2PTSaIS0_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %23, i64 noundef %28) #4
  call void @_ZN2PTC2ERKS_(ptr noundef nonnull align 8 dereferenceable(16) %8, ptr noundef nonnull align 8 dereferenceable(16) %29)
  %30 = call noundef double @_Z5cross2PTS_(ptr noundef %7, ptr noundef %8)
  %31 = load double, ptr %4, align 8, !tbaa !9
  %32 = fadd double %31, %30
  store double %32, ptr %4, align 8, !tbaa !9
  br label %33

33:                                               ; preds = %18
  %34 = load i32, ptr %6, align 4, !tbaa !11
  %35 = add nsw i32 %34, 1
  store i32 %35, ptr %6, align 4, !tbaa !11
  br label %13, !llvm.loop !13

36:                                               ; preds = %17
  %37 = load double, ptr %4, align 8, !tbaa !9
  %38 = call noundef i32 @_Z4signd(double noundef %37)
  %39 = icmp sgt i32 %38, 0
  br i1 %39, label %40, label %41

40:                                               ; preds = %36
  store i1 true, ptr %2, align 1
  store i32 1, ptr %9, align 4
  br label %42

41:                                               ; preds = %36
  store i1 false, ptr %2, align 1
  store i32 1, ptr %9, align 4
  br label %42

42:                                               ; preds = %41, %40
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #4
  %43 = load i1, ptr %2, align 1
  ret i1 %43
}

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" }
attributes #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { inlinehint 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" }
attributes #3 = { 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 #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 = !{!"double", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"int", !7, i64 0}
!13 = distinct !{!13, !14}
!14 = !{!"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"

%struct.PT = type { double, double }

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i32 @_Z4signd(double noundef) local_unnamed_addr #0

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN2PTC2ERKS_(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(16)) unnamed_addr #0 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef double @_Z5cross2PTS_(ptr noundef, ptr noundef) local_unnamed_addr #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorI2PTSaIS0_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorI2PTSaIS0_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef zeroext i1 @_Z13get_directionRSt6vectorI2PTSaIS0_EE(ptr noundef nonnull align 8 dereferenceable(24) %0) local_unnamed_addr #0 {
  %2 = alloca %struct.PT, align 8
  %3 = alloca %struct.PT, align 8
  %4 = tail call noundef i64 @_ZNKSt6vectorI2PTSaIS0_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %0) #2
  %5 = trunc i64 %4 to i32
  %6 = icmp sgt i32 %5, 0
  br i1 %6, label %.lr.ph.preheader, label %._crit_edge

.lr.ph.preheader:                                 ; preds = %1
  %7 = and i64 %4, 2147483647
  br label %.lr.ph

._crit_edge:                                      ; preds = %.lr.ph, %1
  %.012.lcssa = phi double [ 0.000000e+00, %1 ], [ %16, %.lr.ph ]
  %8 = call noundef i32 @_Z4signd(double noundef %.012.lcssa)
  %9 = icmp sgt i32 %8, 0
  ret i1 %9

.lr.ph:                                           ; preds = %.lr.ph.preheader, %.lr.ph
  %indvars.iv = phi i64 [ 0, %.lr.ph.preheader ], [ %indvars.iv.next, %.lr.ph ]
  %.01214 = phi double [ 0.000000e+00, %.lr.ph.preheader ], [ %16, %.lr.ph ]
  %10 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorI2PTSaIS0_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %0, i64 noundef %indvars.iv) #2
  call void @_ZN2PTC2ERKS_(ptr noundef nonnull align 8 dereferenceable(16) %2, ptr noundef nonnull align 8 dereferenceable(16) %10)
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %11 = icmp eq i64 %indvars.iv.next, %7
  %12 = and i64 %indvars.iv.next, 4294967295
  %13 = select i1 %11, i64 0, i64 %12
  %14 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorI2PTSaIS0_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %0, i64 noundef %13) #2
  call void @_ZN2PTC2ERKS_(ptr noundef nonnull align 8 dereferenceable(16) %3, ptr noundef nonnull align 8 dereferenceable(16) %14)
  %15 = call noundef double @_Z5cross2PTS_(ptr noundef nonnull %2, ptr noundef nonnull %3)
  %16 = fadd double %.01214, %15
  %exitcond.not = icmp eq i64 %indvars.iv.next, %7
  br i1 %exitcond.not, label %._crit_edge, label %.lr.ph, !llvm.loop !5
}

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" }
attributes #1 = { inlinehint 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" }
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 = distinct !{!5, !6}
!6 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass