; LLVM IR from openxrlab/xrsfm :: 3rdparty/apriltag/common (pjpeg)

; 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.pjpeg = type { i32, i32, i32, i32, ptr }
%struct.pjpeg_component = type { i32, i32, i32, ptr, i8, i8, i8, i8, i8, i8 }

; Function Attrs: nounwind uwtable
define dso_local void @pjpeg_destroy(ptr noundef %0) #0 {
  %2 = alloca ptr, align 8
  %3 = alloca i32, align 4
  store ptr %0, ptr %2, align 8, !tbaa !5
  %4 = load ptr, ptr %2, align 8, !tbaa !5
  %5 = icmp ne ptr %4, null
  br i1 %5, label %7, label %6

6:                                                ; preds = %1
  br label %32

7:                                                ; preds = %1
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #3
  store i32 0, ptr %3, align 4, !tbaa !9
  br label %8

8:                                                ; preds = %24, %7
  %9 = load i32, ptr %3, align 4, !tbaa !9
  %10 = load ptr, ptr %2, align 8, !tbaa !5
  %11 = getelementptr inbounds %struct.pjpeg, ptr %10, i32 0, i32 3
  %12 = load i32, ptr %11, align 4, !tbaa !11
  %13 = icmp slt i32 %9, %12
  br i1 %13, label %15, label %14

14:                                               ; preds = %8
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #3
  br label %27

15:                                               ; preds = %8
  %16 = load ptr, ptr %2, align 8, !tbaa !5
  %17 = getelementptr inbounds %struct.pjpeg, ptr %16, i32 0, i32 4
  %18 = load ptr, ptr %17, align 8, !tbaa !13
  %19 = load i32, ptr %3, align 4, !tbaa !9
  %20 = sext i32 %19 to i64
  %21 = getelementptr inbounds %struct.pjpeg_component, ptr %18, i64 %20
  %22 = getelementptr inbounds %struct.pjpeg_component, ptr %21, i32 0, i32 3
  %23 = load ptr, ptr %22, align 8, !tbaa !14
  call void @free(ptr noundef %23) #3
  br label %24

24:                                               ; preds = %15
  %25 = load i32, ptr %3, align 4, !tbaa !9
  %26 = add nsw i32 %25, 1
  store i32 %26, ptr %3, align 4, !tbaa !9
  br label %8, !llvm.loop !16

27:                                               ; preds = %14
  %28 = load ptr, ptr %2, align 8, !tbaa !5
  %29 = getelementptr inbounds %struct.pjpeg, ptr %28, i32 0, i32 4
  %30 = load ptr, ptr %29, align 8, !tbaa !13
  call void @free(ptr noundef %30) #3
  %31 = load ptr, ptr %2, align 8, !tbaa !5
  call void @free(ptr noundef %31) #3
  br label %32

32:                                               ; preds = %27, %6
  ret void
}

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

; Function Attrs: nounwind
declare void @free(ptr noundef) #2

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

attributes #0 = { 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 = { nounwind "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/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{!12, !10, i64 12}
!12 = !{!"pjpeg", !10, i64 0, !10, i64 4, !10, i64 8, !10, i64 12, !6, i64 16}
!13 = !{!12, !6, i64 16}
!14 = !{!15, !6, i64 16}
!15 = !{!"pjpeg_component", !10, i64 0, !10, i64 4, !10, i64 8, !6, i64 16, !7, i64 24, !7, i64 25, !7, i64 26, !7, i64 27, !7, i64 28, !7, i64 29}
!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"

%struct.pjpeg_component = type { i32, i32, i32, ptr, i8, i8, i8, i8, i8, i8 }

; Function Attrs: nounwind uwtable
define dso_local void @pjpeg_destroy(ptr noundef %0) local_unnamed_addr #0 {
  %.not = icmp eq ptr %0, null
  br i1 %.not, label %15, label %.preheader

.preheader:                                       ; preds = %1
  %2 = getelementptr inbounds i8, ptr %0, i64 12
  %3 = load i32, ptr %2, align 4, !tbaa !5
  %4 = icmp sgt i32 %3, 0
  br i1 %4, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %.preheader
  %5 = getelementptr inbounds i8, ptr %0, i64 16
  br label %8

._crit_edge:                                      ; preds = %8, %.preheader
  %6 = getelementptr inbounds i8, ptr %0, i64 16
  %7 = load ptr, ptr %6, align 8, !tbaa !11
  tail call void @free(ptr noundef %7) #2
  tail call void @free(ptr noundef nonnull %0) #2
  br label %15

8:                                                ; preds = %.lr.ph, %8
  %indvars.iv = phi i64 [ 0, %.lr.ph ], [ %indvars.iv.next, %8 ]
  %9 = load ptr, ptr %5, align 8, !tbaa !11
  %10 = getelementptr inbounds %struct.pjpeg_component, ptr %9, i64 %indvars.iv, i32 3
  %11 = load ptr, ptr %10, align 8, !tbaa !12
  tail call void @free(ptr noundef %11) #2
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %12 = load i32, ptr %2, align 4, !tbaa !5
  %13 = sext i32 %12 to i64
  %14 = icmp slt i64 %indvars.iv.next, %13
  br i1 %14, label %8, label %._crit_edge, !llvm.loop !14

15:                                               ; preds = %1, %._crit_edge
  ret void
}

; Function Attrs: mustprogress nounwind willreturn allockind("free") memory(argmem: readwrite, inaccessiblemem: readwrite)
declare void @free(ptr allocptr nocapture noundef) local_unnamed_addr #1

attributes #0 = { 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 willreturn allockind("free") memory(argmem: readwrite, inaccessiblemem: readwrite) "alloc-family"="malloc" "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, !7, i64 12}
!6 = !{!"pjpeg", !7, i64 0, !7, i64 4, !7, i64 8, !7, i64 12, !10, i64 16}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"any pointer", !8, i64 0}
!11 = !{!6, !10, i64 16}
!12 = !{!13, !10, i64 16}
!13 = !{!"pjpeg_component", !7, i64 0, !7, i64 4, !7, i64 8, !10, i64 16, !8, i64 24, !8, i64 25, !8, i64 26, !8, i64 27, !8, i64 28, !8, i64 29}
!14 = distinct !{!14, !15}
!15 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: CorrelatedValuePropagationPass,GlobalOptPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LICMPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,SROAPass,SimplifyCFGPass,TailCallElimPass