; LLVM IR from aap/librw :: src/anim.ll (ZN2rw20AnimInterpolatorInfo16unregisterInterpEPS0_)

; 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.rw::MemoryFunctions" = type { ptr, ptr, ptr, ptr, ptr }

@_ZN2rwL14interpInfoListE = external hidden global [10 x ptr], align 16
@_ZN2rw6Engine8memfuncsE = external global %"struct.rw::MemoryFunctions", align 8

; 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 uwtable
define dso_local void @_ZN2rw20AnimInterpolatorInfo16unregisterInterpEPS0_(ptr noundef %0) #1 align 2 {
  %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) #2
  store i32 0, ptr %3, align 4, !tbaa !9
  br label %5

5:                                                ; preds = %26, %1
  %6 = load i32, ptr %3, align 4, !tbaa !9
  %7 = icmp slt i32 %6, 10
  br i1 %7, label %9, label %8

8:                                                ; preds = %5
  store i32 2, ptr %4, align 4
  br label %29

9:                                                ; preds = %5
  %10 = load i32, ptr %3, align 4, !tbaa !9
  %11 = sext i32 %10 to i64
  %12 = getelementptr inbounds [10 x ptr], ptr @_ZN2rwL14interpInfoListE, i64 0, i64 %11
  %13 = load ptr, ptr %12, align 8, !tbaa !5
  %14 = load ptr, ptr %2, align 8, !tbaa !5
  %15 = icmp eq ptr %13, %14
  br i1 %15, label %16, label %25

16:                                               ; preds = %9
  %17 = load ptr, ptr getelementptr inbounds (%"struct.rw::MemoryFunctions", ptr @_ZN2rw6Engine8memfuncsE, i32 0, i32 2), align 8, !tbaa !11
  %18 = load i32, ptr %3, align 4, !tbaa !9
  %19 = sext i32 %18 to i64
  %20 = getelementptr inbounds [10 x ptr], ptr @_ZN2rwL14interpInfoListE, i64 0, i64 %19
  %21 = load ptr, ptr %20, align 8, !tbaa !5
  call void %17(ptr noundef %21)
  %22 = load i32, ptr %3, align 4, !tbaa !9
  %23 = sext i32 %22 to i64
  %24 = getelementptr inbounds [10 x ptr], ptr @_ZN2rwL14interpInfoListE, i64 0, i64 %23
  store ptr null, ptr %24, align 8, !tbaa !5
  store i32 1, ptr %4, align 4
  br label %29

25:                                               ; preds = %9
  br label %26

26:                                               ; preds = %25
  %27 = load i32, ptr %3, align 4, !tbaa !9
  %28 = add nsw i32 %27, 1
  store i32 %28, ptr %3, align 4, !tbaa !9
  br label %5, !llvm.loop !13

29:                                               ; preds = %16, %8
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #2
  %30 = load i32, ptr %4, align 4
  switch i32 %30, label %32 [
    i32 2, label %31
    i32 1, label %31
  ]

31:                                               ; preds = %29, %29
  ret void

32:                                               ; preds = %29
  unreachable
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #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 = !{!"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 16}
!12 = !{!"_ZTSN2rw15MemoryFunctionsE", !6, i64 0, !6, i64 8, !6, i64 16, !6, i64 24, !6, i64 32}
!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.rw::MemoryFunctions" = type { ptr, ptr, ptr, ptr, ptr }

@_ZN2rwL14interpInfoListE = external hidden local_unnamed_addr global [10 x ptr], align 16
@_ZN2rw6Engine8memfuncsE = external local_unnamed_addr global %"struct.rw::MemoryFunctions", align 8

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN2rw20AnimInterpolatorInfo16unregisterInterpEPS0_(ptr noundef readnone %0) local_unnamed_addr #0 align 2 {
  %2 = load ptr, ptr @_ZN2rwL14interpInfoListE, align 16, !tbaa !5
  %3 = icmp eq ptr %2, %0
  br i1 %3, label %31, label %4

4:                                                ; preds = %1
  %5 = load ptr, ptr getelementptr inbounds (i8, ptr @_ZN2rwL14interpInfoListE, i64 8), align 8, !tbaa !5
  %6 = icmp eq ptr %5, %0
  br i1 %6, label %31, label %7

7:                                                ; preds = %4
  %8 = load ptr, ptr getelementptr inbounds (i8, ptr @_ZN2rwL14interpInfoListE, i64 16), align 16, !tbaa !5
  %9 = icmp eq ptr %8, %0
  br i1 %9, label %31, label %10

10:                                               ; preds = %7
  %11 = load ptr, ptr getelementptr inbounds (i8, ptr @_ZN2rwL14interpInfoListE, i64 24), align 8, !tbaa !5
  %12 = icmp eq ptr %11, %0
  br i1 %12, label %31, label %13

13:                                               ; preds = %10
  %14 = load ptr, ptr getelementptr inbounds (i8, ptr @_ZN2rwL14interpInfoListE, i64 32), align 16, !tbaa !5
  %15 = icmp eq ptr %14, %0
  br i1 %15, label %31, label %16

16:                                               ; preds = %13
  %17 = load ptr, ptr getelementptr inbounds (i8, ptr @_ZN2rwL14interpInfoListE, i64 40), align 8, !tbaa !5
  %18 = icmp eq ptr %17, %0
  br i1 %18, label %31, label %19

19:                                               ; preds = %16
  %20 = load ptr, ptr getelementptr inbounds (i8, ptr @_ZN2rwL14interpInfoListE, i64 48), align 16, !tbaa !5
  %21 = icmp eq ptr %20, %0
  br i1 %21, label %31, label %22

22:                                               ; preds = %19
  %23 = load ptr, ptr getelementptr inbounds (i8, ptr @_ZN2rwL14interpInfoListE, i64 56), align 8, !tbaa !5
  %24 = icmp eq ptr %23, %0
  br i1 %24, label %31, label %25

25:                                               ; preds = %22
  %26 = load ptr, ptr getelementptr inbounds (i8, ptr @_ZN2rwL14interpInfoListE, i64 64), align 16, !tbaa !5
  %27 = icmp eq ptr %26, %0
  br i1 %27, label %31, label %28

28:                                               ; preds = %25
  %29 = load ptr, ptr getelementptr inbounds (i8, ptr @_ZN2rwL14interpInfoListE, i64 72), align 8, !tbaa !5
  %30 = icmp eq ptr %29, %0
  br i1 %30, label %31, label %.loopexit

31:                                               ; preds = %28, %25, %22, %19, %16, %13, %10, %7, %4, %1
  %.lcssa10 = phi i64 [ 0, %1 ], [ 1, %4 ], [ 2, %7 ], [ 3, %10 ], [ 4, %13 ], [ 5, %16 ], [ 6, %19 ], [ 7, %22 ], [ 8, %25 ], [ 9, %28 ]
  %.lcssa = phi ptr [ %2, %1 ], [ %5, %4 ], [ %8, %7 ], [ %11, %10 ], [ %14, %13 ], [ %17, %16 ], [ %20, %19 ], [ %23, %22 ], [ %26, %25 ], [ %29, %28 ]
  %32 = getelementptr inbounds [10 x ptr], ptr @_ZN2rwL14interpInfoListE, i64 0, i64 %.lcssa10
  %33 = load ptr, ptr getelementptr inbounds (i8, ptr @_ZN2rw6Engine8memfuncsE, i64 16), align 8, !tbaa !9
  tail call void %33(ptr noundef %.lcssa)
  store ptr null, ptr %32, align 8, !tbaa !5
  br label %.loopexit

.loopexit:                                        ; preds = %28, %31
  ret void
}

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" }

!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 16}
!10 = !{!"_ZTSN2rw15MemoryFunctionsE", !6, i64 0, !6, i64 8, !6, i64 16, !6, i64 24, !6, i64 32}


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