; LLVM IR from bqi343/cp-notebook :: Implementations/content/geometry (13)/3D/death_conveyor.ll (Z4abs2RKSt5arrayIeLm4EE)

; 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: mustprogress nounwind uwtable
define dso_local noundef x86_fp80 @_Z4abs2RKSt5arrayIeLm4EE(ptr noundef nonnull align 16 dereferenceable(64) %0) #1 {
  %2 = alloca ptr, align 8
  %3 = alloca x86_fp80, align 16
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 16, ptr %3) #3
  store x86_fp80 0xK00000000000000000000, ptr %3, align 16, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #3
  %8 = load ptr, ptr %2, align 8, !tbaa !5
  store ptr %8, ptr %4, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #3
  %9 = load ptr, ptr %4, align 8, !tbaa !5
  %10 = call noundef ptr @_ZNKSt5arrayIeLm4EE5beginEv(ptr noundef nonnull align 16 dereferenceable(64) %9) #3
  store ptr %10, ptr %5, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #3
  %11 = load ptr, ptr %4, align 8, !tbaa !5
  %12 = call noundef ptr @_ZNKSt5arrayIeLm4EE3endEv(ptr noundef nonnull align 16 dereferenceable(64) %11) #3
  store ptr %12, ptr %6, align 8, !tbaa !5
  br label %13

13:                                               ; preds = %26, %1
  %14 = load ptr, ptr %5, align 8, !tbaa !5
  %15 = load ptr, ptr %6, align 8, !tbaa !5
  %16 = icmp ne ptr %14, %15
  br i1 %16, label %18, label %17

17:                                               ; preds = %13
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #3
  br label %29

18:                                               ; preds = %13
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #3
  %19 = load ptr, ptr %5, align 8, !tbaa !5
  store ptr %19, ptr %7, align 8, !tbaa !5
  %20 = load ptr, ptr %7, align 8, !tbaa !5
  %21 = load x86_fp80, ptr %20, align 16, !tbaa !9
  %22 = load ptr, ptr %7, align 8, !tbaa !5
  %23 = load x86_fp80, ptr %22, align 16, !tbaa !9
  %24 = load x86_fp80, ptr %3, align 16, !tbaa !9
  %25 = call x86_fp80 @llvm.fmuladd.f80(x86_fp80 %21, x86_fp80 %23, x86_fp80 %24)
  store x86_fp80 %25, ptr %3, align 16, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #3
  br label %26

26:                                               ; preds = %18
  %27 = load ptr, ptr %5, align 8, !tbaa !5
  %28 = getelementptr inbounds x86_fp80, ptr %27, i32 1
  store ptr %28, ptr %5, align 8, !tbaa !5
  br label %13

29:                                               ; preds = %17
  %30 = load x86_fp80, ptr %3, align 16, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 16, ptr %3) #3
  ret x86_fp80 %30
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZNKSt5arrayIeLm4EE5beginEv(ptr noundef nonnull align 16 dereferenceable(64)) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZNKSt5arrayIeLm4EE3endEv(ptr noundef nonnull align 16 dereferenceable(64)) #1 align 2

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare x86_fp80 @llvm.fmuladd.f80(x86_fp80, x86_fp80, x86_fp80) #2

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
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 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"long double", !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 nounwind uwtable
define dso_local noundef x86_fp80 @_Z4abs2RKSt5arrayIeLm4EE(ptr noundef nonnull align 16 dereferenceable(64) %0) local_unnamed_addr #0 {
  %2 = tail call noundef ptr @_ZNKSt5arrayIeLm4EE5beginEv(ptr noundef nonnull align 16 dereferenceable(64) %0) #2
  %3 = tail call noundef ptr @_ZNKSt5arrayIeLm4EE3endEv(ptr noundef nonnull align 16 dereferenceable(64) %0) #2
  %.not12 = icmp eq ptr %2, %3
  br i1 %.not12, label %._crit_edge, label %.lr.ph

._crit_edge:                                      ; preds = %.lr.ph, %1
  %.0.lcssa = phi x86_fp80 [ 0xK00000000000000000000, %1 ], [ %5, %.lr.ph ]
  ret x86_fp80 %.0.lcssa

.lr.ph:                                           ; preds = %1, %.lr.ph
  %.014 = phi x86_fp80 [ %5, %.lr.ph ], [ 0xK00000000000000000000, %1 ]
  %.01113 = phi ptr [ %6, %.lr.ph ], [ %2, %1 ]
  %4 = load x86_fp80, ptr %.01113, align 16, !tbaa !5
  %5 = tail call x86_fp80 @llvm.fmuladd.f80(x86_fp80 %4, x86_fp80 %4, x86_fp80 %.014)
  %6 = getelementptr inbounds i8, ptr %.01113, i64 16
  %.not = icmp eq ptr %6, %3
  br i1 %.not, label %._crit_edge, label %.lr.ph
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZNKSt5arrayIeLm4EE5beginEv(ptr noundef nonnull align 16 dereferenceable(64)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZNKSt5arrayIeLm4EE3endEv(ptr noundef nonnull align 16 dereferenceable(64)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare x86_fp80 @llvm.fmuladd.f80(x86_fp80, x86_fp80, x86_fp80) #1

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 = { mustprogress nocallback nofree nosync nounwind speculatable willreturn memory(none) }
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 double", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}


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