; LLVM IR from simbody/simbody :: SimTKmath/Integrators/src/CPodes/sundials/src/cpodes (cpodes_bbdpre)

; 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.anon = type { i32, i32, i32, i32, double, ptr, ptr, ptr, ptr, ptr, ptr, ptr, i32, i64, i64, i64, ptr }

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nounwind
declare void @free(ptr noundef) #1

declare void @DestroyMat(ptr noundef) #2

declare void @DestroyArray(ptr noundef) #2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nounwind uwtable
define dso_local void @CPBBDPrecFree(ptr noundef %0) #3 {
  %2 = alloca ptr, align 8
  %3 = alloca ptr, align 8
  %4 = alloca i32, align 4
  store ptr %0, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #4
  %5 = load ptr, ptr %2, align 8, !tbaa !5
  %6 = load ptr, ptr %5, align 8, !tbaa !5
  %7 = icmp eq ptr %6, null
  br i1 %7, label %8, label %9

8:                                                ; preds = %1
  store i32 1, ptr %4, align 4
  br label %27

9:                                                ; preds = %1
  %10 = load ptr, ptr %2, align 8, !tbaa !5
  %11 = load ptr, ptr %10, align 8, !tbaa !5
  store ptr %11, ptr %3, align 8, !tbaa !5
  %12 = load ptr, ptr %3, align 8, !tbaa !5
  %13 = getelementptr inbounds %struct.anon, ptr %12, i32 0, i32 9
  %14 = load ptr, ptr %13, align 8, !tbaa !9
  call void @DestroyMat(ptr noundef %14)
  %15 = load ptr, ptr %3, align 8, !tbaa !5
  %16 = getelementptr inbounds %struct.anon, ptr %15, i32 0, i32 10
  %17 = load ptr, ptr %16, align 8, !tbaa !14
  call void @DestroyMat(ptr noundef %17)
  %18 = load ptr, ptr %3, align 8, !tbaa !5
  %19 = getelementptr inbounds %struct.anon, ptr %18, i32 0, i32 11
  %20 = load ptr, ptr %19, align 8, !tbaa !15
  call void @DestroyArray(ptr noundef %20)
  %21 = load ptr, ptr %3, align 8, !tbaa !5
  %22 = getelementptr inbounds %struct.anon, ptr %21, i32 0, i32 8
  %23 = load ptr, ptr %22, align 8, !tbaa !16
  call void @N_VDestroy(ptr noundef %23)
  %24 = load ptr, ptr %2, align 8, !tbaa !5
  %25 = load ptr, ptr %24, align 8, !tbaa !5
  call void @free(ptr noundef %25) #4
  %26 = load ptr, ptr %2, align 8, !tbaa !5
  store ptr null, ptr %26, align 8, !tbaa !5
  store i32 0, ptr %4, align 4
  br label %27

27:                                               ; preds = %9, %8
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #4
  %28 = load i32, ptr %4, align 4
  switch i32 %28, label %30 [
    i32 0, label %29
    i32 1, label %29
  ]

29:                                               ; preds = %27, %27
  ret void

30:                                               ; preds = %27
  unreachable
}

declare void @N_VDestroy(ptr noundef) #2

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #2 = { "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 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/C++ TBAA"}
!9 = !{!10, !6, i64 56}
!10 = !{!"", !11, i64 0, !11, i64 4, !11, i64 8, !11, i64 12, !12, i64 16, !6, i64 24, !6, i64 32, !6, i64 40, !6, i64 48, !6, i64 56, !6, i64 64, !6, i64 72, !11, i64 80, !13, i64 88, !13, i64 96, !13, i64 104, !6, i64 112}
!11 = !{!"int", !7, i64 0}
!12 = !{!"double", !7, i64 0}
!13 = !{!"long", !7, i64 0}
!14 = !{!10, !6, i64 64}
!15 = !{!10, !6, i64 72}
!16 = !{!10, !6, i64 48}


; 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 willreturn allockind("free") memory(argmem: readwrite, inaccessiblemem: readwrite)
declare void @free(ptr allocptr nocapture noundef) local_unnamed_addr #0

declare void @DestroyMat(ptr noundef) local_unnamed_addr #1

declare void @DestroyArray(ptr noundef) local_unnamed_addr #1

; Function Attrs: nounwind uwtable
define dso_local void @CPBBDPrecFree(ptr nocapture noundef %0) local_unnamed_addr #2 {
  %2 = load ptr, ptr %0, align 8, !tbaa !5
  %3 = icmp eq ptr %2, null
  br i1 %3, label %14, label %4

4:                                                ; preds = %1
  %5 = getelementptr inbounds i8, ptr %2, i64 56
  %6 = load ptr, ptr %5, align 8, !tbaa !9
  tail call void @DestroyMat(ptr noundef %6) #3
  %7 = getelementptr inbounds i8, ptr %2, i64 64
  %8 = load ptr, ptr %7, align 8, !tbaa !14
  tail call void @DestroyMat(ptr noundef %8) #3
  %9 = getelementptr inbounds i8, ptr %2, i64 72
  %10 = load ptr, ptr %9, align 8, !tbaa !15
  tail call void @DestroyArray(ptr noundef %10) #3
  %11 = getelementptr inbounds i8, ptr %2, i64 48
  %12 = load ptr, ptr %11, align 8, !tbaa !16
  tail call void @N_VDestroy(ptr noundef %12) #3
  %13 = load ptr, ptr %0, align 8, !tbaa !5
  tail call void @free(ptr noundef %13) #3
  store ptr null, ptr %0, align 8, !tbaa !5
  br label %14

14:                                               ; preds = %1, %4
  ret void
}

declare void @N_VDestroy(ptr noundef) local_unnamed_addr #1

attributes #0 = { 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 #1 = { "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 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/C++ TBAA"}
!9 = !{!10, !6, i64 56}
!10 = !{!"", !11, i64 0, !11, i64 4, !11, i64 8, !11, i64 12, !12, i64 16, !6, i64 24, !6, i64 32, !6, i64 40, !6, i64 48, !6, i64 56, !6, i64 64, !6, i64 72, !11, i64 80, !13, i64 88, !13, i64 96, !13, i64 104, !6, i64 112}
!11 = !{!"int", !7, i64 0}
!12 = !{!"double", !7, i64 0}
!13 = !{!"long", !7, i64 0}
!14 = !{!10, !6, i64 64}
!15 = !{!10, !6, i64 72}
!16 = !{!10, !6, i64 48}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass