; LLVM IR from jrouwe/JoltPhysics :: Jolt/Geometry/ConvexHullBuilder.ll (ZN3JPH17ConvexHullBuilder4FaceD2Ev)

; 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"

%"class.JPH::ConvexHullBuilder::Face" = type <{ %"class.JPH::Vec3", %"class.JPH::Vec3", %"class.JPH::Array", ptr, float, i8, [11 x i8] }>
%"class.JPH::Vec3" = type { %union.anon }
%union.anon = type { <4 x float> }
%"class.JPH::Array" = type { i64, i64, ptr }
%"class.JPH::ConvexHullBuilder::Edge" = type <{ ptr, ptr, ptr, i32, [4 x i8] }>

; 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 void @_ZN3JPH17ConvexHullBuilder4FaceD2Ev(ptr noundef nonnull align 16 dereferenceable(69) %0) unnamed_addr #1 align 2 {
  %2 = alloca ptr, align 8
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  %5 = load ptr, ptr %2, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #4
  %6 = getelementptr inbounds %"class.JPH::ConvexHullBuilder::Face", ptr %5, i32 0, i32 3
  %7 = load ptr, ptr %6, align 8, !tbaa !9
  store ptr %7, ptr %3, align 8, !tbaa !5
  %8 = load ptr, ptr %3, align 8, !tbaa !5
  %9 = icmp ne ptr %8, null
  br i1 %9, label %10, label %26

10:                                               ; preds = %1
  br label %11

11:                                               ; preds = %20, %10
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #4
  %12 = load ptr, ptr %3, align 8, !tbaa !5
  %13 = getelementptr inbounds %"class.JPH::ConvexHullBuilder::Edge", ptr %12, i32 0, i32 1
  %14 = load ptr, ptr %13, align 8, !tbaa !16
  store ptr %14, ptr %4, align 8, !tbaa !5
  %15 = load ptr, ptr %3, align 8, !tbaa !5
  %16 = icmp eq ptr %15, null
  br i1 %16, label %18, label %17

17:                                               ; preds = %11
  call void @_ZN3JPH17ConvexHullBuilder4EdgedlEPv(ptr noundef %15) #4
  br label %18

18:                                               ; preds = %17, %11
  %19 = load ptr, ptr %4, align 8, !tbaa !5
  store ptr %19, ptr %3, align 8, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #4
  br label %20

20:                                               ; preds = %18
  %21 = load ptr, ptr %3, align 8, !tbaa !5
  %22 = getelementptr inbounds %"class.JPH::ConvexHullBuilder::Face", ptr %5, i32 0, i32 3
  %23 = load ptr, ptr %22, align 8, !tbaa !9
  %24 = icmp ne ptr %21, %23
  br i1 %24, label %11, label %25, !llvm.loop !19

25:                                               ; preds = %20
  br label %26

26:                                               ; preds = %25, %1
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #4
  %27 = getelementptr inbounds %"class.JPH::ConvexHullBuilder::Face", ptr %5, i32 0, i32 2
  call void @_ZN3JPH5ArrayIiNS_12STLAllocatorIiEEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %27) #4
  ret void
}

; Function Attrs: alwaysinline mustprogress nounwind uwtable
declare dso_local void @_ZN3JPH17ConvexHullBuilder4EdgedlEPv(ptr noundef) #2 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZN3JPH5ArrayIiNS_12STLAllocatorIiEEED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #3 align 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 = { alwaysinline 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 = { 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 #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, !6, i64 56}
!10 = !{!"_ZTSN3JPH17ConvexHullBuilder4FaceE", !11, i64 0, !11, i64 16, !12, i64 32, !6, i64 56, !14, i64 64, !15, i64 68}
!11 = !{!"_ZTSN3JPH4Vec3E", !7, i64 0}
!12 = !{!"_ZTSN3JPH5ArrayIiNS_12STLAllocatorIiEEEE", !13, i64 0, !13, i64 8, !6, i64 16}
!13 = !{!"long", !7, i64 0}
!14 = !{!"float", !7, i64 0}
!15 = !{!"bool", !7, i64 0}
!16 = !{!17, !6, i64 8}
!17 = !{!"_ZTSN3JPH17ConvexHullBuilder4EdgeE", !6, i64 0, !6, i64 8, !6, i64 16, !18, i64 24}
!18 = !{!"int", !7, i64 0}
!19 = distinct !{!19, !20}
!20 = !{!"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: mustprogress nounwind uwtable
define dso_local void @_ZN3JPH17ConvexHullBuilder4FaceD2Ev(ptr noundef nonnull align 16 dereferenceable(69) %0) unnamed_addr #0 align 2 {
  %2 = getelementptr inbounds i8, ptr %0, i64 56
  %3 = load ptr, ptr %2, align 8, !tbaa !5
  %.not = icmp eq ptr %3, null
  br i1 %.not, label %.loopexit, label %.preheader

.preheader:                                       ; preds = %1, %.preheader
  %.0 = phi ptr [ %5, %.preheader ], [ %3, %1 ]
  %4 = getelementptr inbounds i8, ptr %.0, i64 8
  %5 = load ptr, ptr %4, align 8, !tbaa !15
  tail call void @_ZN3JPH17ConvexHullBuilder4EdgedlEPv(ptr noundef nonnull %.0) #3
  %6 = load ptr, ptr %2, align 8, !tbaa !5
  %.not8 = icmp eq ptr %5, %6
  br i1 %.not8, label %.loopexit, label %.preheader, !llvm.loop !18

.loopexit:                                        ; preds = %.preheader, %1
  %7 = getelementptr inbounds i8, ptr %0, i64 32
  tail call void @_ZN3JPH5ArrayIiNS_12STLAllocatorIiEEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %7) #3
  ret void
}

; Function Attrs: alwaysinline mustprogress nounwind uwtable
declare dso_local void @_ZN3JPH17ConvexHullBuilder4EdgedlEPv(ptr noundef) local_unnamed_addr #1 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZN3JPH5ArrayIiNS_12STLAllocatorIiEEED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 align 2

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 = { alwaysinline 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 = { 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 = { 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, !12, i64 56}
!6 = !{!"_ZTSN3JPH17ConvexHullBuilder4FaceE", !7, i64 0, !7, i64 16, !10, i64 32, !12, i64 56, !13, i64 64, !14, i64 68}
!7 = !{!"_ZTSN3JPH4Vec3E", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"_ZTSN3JPH5ArrayIiNS_12STLAllocatorIiEEEE", !11, i64 0, !11, i64 8, !12, i64 16}
!11 = !{!"long", !8, i64 0}
!12 = !{!"any pointer", !8, i64 0}
!13 = !{!"float", !8, i64 0}
!14 = !{!"bool", !8, i64 0}
!15 = !{!16, !12, i64 8}
!16 = !{!"_ZTSN3JPH17ConvexHullBuilder4EdgeE", !12, i64 0, !12, i64 8, !12, i64 16, !17, i64 24}
!17 = !{!"int", !8, i64 0}
!18 = distinct !{!18, !19}
!19 = !{!"llvm.loop.mustprogress"}


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