; LLVM IR from mtsamis/box2d-optimized :: src/collision/b2_broad_phase.ll (ZN14b2IntHashTable3GetEP9b2Fixture)

; 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.b2IntHashTable = type <{ ptr, i32, [4 x i8] }>
%struct.b2MapNode = type { i32, i32, ptr }

; 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: inlinehint mustprogress nounwind uwtable
declare dso_local noundef i32 @_Z4hashj(i32 noundef) #1

; Function Attrs: mustprogress uwtable
define dso_local noundef ptr @_ZN14b2IntHashTable3GetEP9b2Fixture(ptr noundef nonnull align 8 dereferenceable(12) %0, ptr noundef %1) #2 align 2 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  %6 = alloca ptr, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  store ptr %1, ptr %4, align 8, !tbaa !5
  %7 = load ptr, ptr %3, align 8
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #3
  %8 = load ptr, ptr %4, align 8, !tbaa !5
  %9 = call noundef i32 @_ZN9b2Fixture5GetIdEv(ptr noundef nonnull align 8 dereferenceable(84) %8)
  store i32 %9, ptr %5, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #3
  %10 = getelementptr inbounds %class.b2IntHashTable, ptr %7, i32 0, i32 0
  %11 = load ptr, ptr %10, align 8, !tbaa !11
  %12 = load i32, ptr %5, align 4, !tbaa !9
  %13 = call noundef i32 @_Z4hashj(i32 noundef %12)
  %14 = getelementptr inbounds %class.b2IntHashTable, ptr %7, i32 0, i32 1
  %15 = load i32, ptr %14, align 8, !tbaa !13
  %16 = sub nsw i32 %15, 1
  %17 = and i32 %13, %16
  %18 = zext i32 %17 to i64
  %19 = getelementptr inbounds ptr, ptr %11, i64 %18
  store ptr %19, ptr %6, align 8, !tbaa !5
  br label %20

20:                                               ; preds = %33, %2
  %21 = load ptr, ptr %6, align 8, !tbaa !5
  %22 = load ptr, ptr %21, align 8, !tbaa !5
  %23 = icmp ne ptr %22, null
  br i1 %23, label %24, label %31

24:                                               ; preds = %20
  %25 = load ptr, ptr %6, align 8, !tbaa !5
  %26 = load ptr, ptr %25, align 8, !tbaa !5
  %27 = getelementptr inbounds %struct.b2MapNode, ptr %26, i32 0, i32 0
  %28 = load i32, ptr %27, align 8, !tbaa !14
  %29 = load i32, ptr %5, align 4, !tbaa !9
  %30 = icmp ne i32 %28, %29
  br label %31

31:                                               ; preds = %24, %20
  %32 = phi i1 [ false, %20 ], [ %30, %24 ]
  br i1 %32, label %33, label %37

33:                                               ; preds = %31
  %34 = load ptr, ptr %6, align 8, !tbaa !5
  %35 = load ptr, ptr %34, align 8, !tbaa !5
  %36 = getelementptr inbounds %struct.b2MapNode, ptr %35, i32 0, i32 2
  store ptr %36, ptr %6, align 8, !tbaa !5
  br label %20, !llvm.loop !16

37:                                               ; preds = %31
  %38 = load ptr, ptr %6, align 8, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #3
  ret ptr %38
}

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef i32 @_ZN9b2Fixture5GetIdEv(ptr noundef nonnull align 8 dereferenceable(84)) #1 align 2

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = { 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 = { 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 = !{!12, !6, i64 0}
!12 = !{!"_ZTS14b2IntHashTable", !6, i64 0, !10, i64 8}
!13 = !{!12, !10, i64 8}
!14 = !{!15, !10, i64 0}
!15 = !{!"_ZTS9b2MapNode", !10, i64 0, !10, i64 4, !6, i64 8}
!16 = distinct !{!16, !17}
!17 = !{!"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: inlinehint mustprogress nounwind uwtable
declare dso_local noundef i32 @_Z4hashj(i32 noundef) local_unnamed_addr #0

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef ptr @_ZN14b2IntHashTable3GetEP9b2Fixture(ptr nocapture noundef nonnull readonly align 8 dereferenceable(12) %0, ptr noundef nonnull %1) local_unnamed_addr #1 align 2 {
  %3 = tail call noundef i32 @_ZN9b2Fixture5GetIdEv(ptr noundef nonnull align 8 dereferenceable(84) %1)
  %4 = load ptr, ptr %0, align 8, !tbaa !5
  %5 = tail call noundef i32 @_Z4hashj(i32 noundef %3)
  %6 = getelementptr inbounds i8, ptr %0, i64 8
  %7 = load i32, ptr %6, align 8, !tbaa !11
  %8 = add nsw i32 %7, -1
  %9 = and i32 %8, %5
  %10 = zext i32 %9 to i64
  %11 = getelementptr inbounds ptr, ptr %4, i64 %10
  %12 = load ptr, ptr %11, align 8, !tbaa !12
  %.not9 = icmp eq ptr %12, null
  br i1 %.not9, label %.critedge, label %.lr.ph.preheader

.lr.ph.preheader:                                 ; preds = %2
  %13 = load i32, ptr %12, align 8, !tbaa !13
  %.not813 = icmp eq i32 %13, %3
  br i1 %.not813, label %.critedge, label %.lr.ph14

.lr.ph14:                                         ; preds = %.lr.ph.preheader, %.lr.ph
  %14 = phi ptr [ %16, %.lr.ph ], [ %12, %.lr.ph.preheader ]
  %15 = getelementptr inbounds i8, ptr %14, i64 8
  %16 = load ptr, ptr %15, align 8, !tbaa !12
  %.not = icmp eq ptr %16, null
  br i1 %.not, label %.critedge.loopexit, label %.lr.ph, !llvm.loop !15

.lr.ph:                                           ; preds = %.lr.ph14
  %17 = load i32, ptr %16, align 8, !tbaa !13
  %.not8 = icmp eq i32 %17, %3
  br i1 %.not8, label %.critedge.loopexit, label %.lr.ph14, !llvm.loop !15

.critedge.loopexit:                               ; preds = %.lr.ph, %.lr.ph14
  %18 = getelementptr inbounds i8, ptr %14, i64 8
  br label %.critedge

.critedge:                                        ; preds = %.critedge.loopexit, %.lr.ph.preheader, %2
  %.0.lcssa = phi ptr [ %11, %2 ], [ %11, %.lr.ph.preheader ], [ %18, %.critedge.loopexit ]
  ret ptr %.0.lcssa
}

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef i32 @_ZN9b2Fixture5GetIdEv(ptr noundef nonnull align 8 dereferenceable(84)) local_unnamed_addr #0 align 2

attributes #0 = { 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 #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" }

!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, !7, i64 0}
!6 = !{!"_ZTS14b2IntHashTable", !7, i64 0, !10, i64 8}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"int", !8, i64 0}
!11 = !{!6, !10, i64 8}
!12 = !{!7, !7, i64 0}
!13 = !{!14, !10, i64 0}
!14 = !{!"_ZTS9b2MapNode", !10, i64 0, !10, i64 4, !7, i64 8}
!15 = distinct !{!15, !16}
!16 = !{!"llvm.loop.mustprogress"}


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