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

; 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, ptr, ptr, ptr, 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

; 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 @CPBandPrecFree(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 %24

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 3
  %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 4
  %17 = load ptr, ptr %16, align 8, !tbaa !13
  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 5
  %20 = load ptr, ptr %19, align 8, !tbaa !14
  call void @DestroyArray(ptr noundef %20)
  %21 = load ptr, ptr %2, align 8, !tbaa !5
  %22 = load ptr, ptr %21, align 8, !tbaa !5
  call void @free(ptr noundef %22) #4
  %23 = load ptr, ptr %2, align 8, !tbaa !5
  store ptr null, ptr %23, align 8, !tbaa !5
  store i32 0, ptr %4, align 4
  br label %24

24:                                               ; preds = %9, %8
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #4
  %25 = load i32, ptr %4, align 4
  switch i32 %25, label %27 [
    i32 0, label %26
    i32 1, label %26
  ]

26:                                               ; preds = %24, %24
  ret void

27:                                               ; preds = %24
  unreachable
}

declare void @DestroyArray(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 16}
!10 = !{!"", !11, i64 0, !11, i64 4, !11, i64 8, !6, i64 16, !6, i64 24, !6, i64 32, !12, i64 40, !6, i64 48}
!11 = !{!"int", !7, i64 0}
!12 = !{!"long", !7, i64 0}
!13 = !{!10, !6, i64 24}
!14 = !{!10, !6, i64 32}


; 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

; Function Attrs: nounwind uwtable
define dso_local void @CPBandPrecFree(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 %12, label %4

4:                                                ; preds = %1
  %5 = getelementptr inbounds i8, ptr %2, i64 16
  %6 = load ptr, ptr %5, align 8, !tbaa !9
  tail call void @DestroyMat(ptr noundef %6) #3
  %7 = getelementptr inbounds i8, ptr %2, i64 24
  %8 = load ptr, ptr %7, align 8, !tbaa !13
  tail call void @DestroyMat(ptr noundef %8) #3
  %9 = getelementptr inbounds i8, ptr %2, i64 32
  %10 = load ptr, ptr %9, align 8, !tbaa !14
  tail call void @DestroyArray(ptr noundef %10) #3
  %11 = load ptr, ptr %0, align 8, !tbaa !5
  tail call void @free(ptr noundef %11) #3
  store ptr null, ptr %0, align 8, !tbaa !5
  br label %12

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

declare void @DestroyArray(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 16}
!10 = !{!"", !11, i64 0, !11, i64 4, !11, i64 8, !6, i64 16, !6, i64 24, !6, i64 32, !12, i64 40, !6, i64 48}
!11 = !{!"int", !7, i64 0}
!12 = !{!"long", !7, i64 0}
!13 = !{!10, !6, i64 24}
!14 = !{!10, !6, i64 32}


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