; LLVM IR from InsightSoftwareConsortium/ITK :: Modules/ThirdParty/MINC/src/libminc/nifti (nifti1_io)

; 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.nifti_global_options = type { i32, i32, i32 }

@stderr = external global ptr, align 8
@g_opts = external hidden global %struct.nifti_global_options, align 4
@.str.379 = external hidden unnamed_addr constant [30 x i8], align 1
@.str.380 = external hidden unnamed_addr constant [26 x i8], align 1

; 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: nounwind
declare i32 @fprintf(ptr noundef, ptr noundef, ...) #1

; Function Attrs: nounwind uwtable
define dso_local i32 @nifti_nim_is_valid(ptr noundef %0, i32 noundef %1) #2 {
  %3 = alloca i32, align 4
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store i32 %1, ptr %5, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #3
  store i32 0, ptr %6, align 4, !tbaa !9
  %8 = load ptr, ptr %4, align 8, !tbaa !5
  %9 = icmp ne ptr %8, null
  br i1 %9, label %13, label %10

10:                                               ; preds = %2
  %11 = load ptr, ptr @stderr, align 8, !tbaa !5
  %12 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %11, ptr noundef @.str.379) #3
  store i32 0, ptr %3, align 4
  store i32 1, ptr %7, align 4
  br label %36

13:                                               ; preds = %2
  %14 = load i32, ptr @g_opts, align 4, !tbaa !11
  %15 = icmp sgt i32 %14, 2
  br i1 %15, label %16, label %19

16:                                               ; preds = %13
  %17 = load ptr, ptr @stderr, align 8, !tbaa !5
  %18 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %17, ptr noundef @.str.380) #3
  br label %19

19:                                               ; preds = %16, %13
  %20 = load ptr, ptr %4, align 8, !tbaa !5
  %21 = load i32, ptr %5, align 4, !tbaa !9
  %22 = call i32 @nifti_nim_has_valid_dims(ptr noundef %20, i32 noundef %21)
  %23 = icmp ne i32 %22, 0
  br i1 %23, label %31, label %24

24:                                               ; preds = %19
  %25 = load i32, ptr %5, align 4, !tbaa !9
  %26 = icmp ne i32 %25, 0
  br i1 %26, label %28, label %27

27:                                               ; preds = %24
  store i32 0, ptr %3, align 4
  store i32 1, ptr %7, align 4
  br label %36

28:                                               ; preds = %24
  %29 = load i32, ptr %6, align 4, !tbaa !9
  %30 = add nsw i32 %29, 1
  store i32 %30, ptr %6, align 4, !tbaa !9
  br label %31

31:                                               ; preds = %28, %19
  %32 = load i32, ptr %6, align 4, !tbaa !9
  %33 = icmp sgt i32 %32, 0
  br i1 %33, label %34, label %35

34:                                               ; preds = %31
  store i32 0, ptr %3, align 4
  store i32 1, ptr %7, align 4
  br label %36

35:                                               ; preds = %31
  store i32 1, ptr %3, align 4
  store i32 1, ptr %7, align 4
  br label %36

36:                                               ; preds = %35, %34, %27, %10
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #3
  %37 = load i32, ptr %3, align 4
  ret i32 %37
}

; Function Attrs: nounwind uwtable
declare dso_local i32 @nifti_nim_has_valid_dims(ptr noundef, i32 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 = { 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, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{!12, !10, i64 0}
!12 = !{!"", !10, i64 0, !10, i64 4, !10, i64 8}


; 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.nifti_global_options = type { i32, i32, i32 }

@stderr = external local_unnamed_addr global ptr, align 8
@g_opts = external hidden local_unnamed_addr global %struct.nifti_global_options, align 4
@.str.379 = external hidden unnamed_addr constant [30 x i8], align 1
@.str.380 = external hidden unnamed_addr constant [26 x i8], align 1

; Function Attrs: nofree nounwind
declare noundef i32 @fprintf(ptr nocapture noundef, ptr nocapture noundef readonly, ...) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local range(i32 0, 2) i32 @nifti_nim_is_valid(ptr noundef %0, i32 noundef %1) local_unnamed_addr #1 {
  %.not = icmp eq ptr %0, null
  br i1 %.not, label %3, label %6

3:                                                ; preds = %2
  %4 = load ptr, ptr @stderr, align 8, !tbaa !5
  %5 = tail call i32 (ptr, ptr, ...) @fprintf(ptr noundef %4, ptr noundef nonnull @.str.379) #2
  br label %14

6:                                                ; preds = %2
  %7 = load i32, ptr @g_opts, align 4, !tbaa !9
  %8 = icmp sgt i32 %7, 2
  br i1 %8, label %9, label %12

9:                                                ; preds = %6
  %10 = load ptr, ptr @stderr, align 8, !tbaa !5
  %11 = tail call i32 (ptr, ptr, ...) @fprintf(ptr noundef %10, ptr noundef nonnull @.str.380) #2
  br label %12

12:                                               ; preds = %9, %6
  %13 = tail call i32 @nifti_nim_has_valid_dims(ptr noundef nonnull %0, i32 noundef %1)
  %.not8 = icmp ne i32 %13, 0
  %. = zext i1 %.not8 to i32
  br label %14

14:                                               ; preds = %12, %3
  %.06 = phi i32 [ 0, %3 ], [ %., %12 ]
  ret i32 %.06
}

; Function Attrs: nounwind uwtable
declare dso_local i32 @nifti_nim_has_valid_dims(ptr noundef, i32 noundef) local_unnamed_addr #1

attributes #0 = { nofree 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 #1 = { 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 = { cold 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, !11, i64 0}
!10 = !{!"", !11, i64 0, !11, i64 4, !11, i64 8}
!11 = !{!"int", !7, i64 0}


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