; LLVM IR from caryll/otfcc :: lib/vf (region)

; 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.vq_Region = type { i16, [0 x %struct.vq_AxisSpan] }
%struct.vq_AxisSpan = type { double, double, double }

; Function Attrs: nounwind uwtable
define dso_local i32 @vq_compareRegion(ptr noundef %0, ptr noundef %1) #0 {
  %3 = alloca i32, align 4
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  %6 = load ptr, ptr %4, align 8, !tbaa !5
  %7 = getelementptr inbounds %struct.vq_Region, ptr %6, i32 0, i32 0
  %8 = load i16, ptr %7, align 8, !tbaa !9
  %9 = zext i16 %8 to i32
  %10 = load ptr, ptr %5, align 8, !tbaa !5
  %11 = getelementptr inbounds %struct.vq_Region, ptr %10, i32 0, i32 0
  %12 = load i16, ptr %11, align 8, !tbaa !9
  %13 = zext i16 %12 to i32
  %14 = icmp slt i32 %9, %13
  br i1 %14, label %15, label %16

15:                                               ; preds = %2
  store i32 -1, ptr %3, align 4
  br label %37

16:                                               ; preds = %2
  %17 = load ptr, ptr %4, align 8, !tbaa !5
  %18 = getelementptr inbounds %struct.vq_Region, ptr %17, i32 0, i32 0
  %19 = load i16, ptr %18, align 8, !tbaa !9
  %20 = zext i16 %19 to i32
  %21 = load ptr, ptr %5, align 8, !tbaa !5
  %22 = getelementptr inbounds %struct.vq_Region, ptr %21, i32 0, i32 0
  %23 = load i16, ptr %22, align 8, !tbaa !9
  %24 = zext i16 %23 to i32
  %25 = icmp sgt i32 %20, %24
  br i1 %25, label %26, label %27

26:                                               ; preds = %16
  store i32 1, ptr %3, align 4
  br label %37

27:                                               ; preds = %16
  %28 = load ptr, ptr %4, align 8, !tbaa !5
  %29 = load ptr, ptr %5, align 8, !tbaa !5
  %30 = load ptr, ptr %4, align 8, !tbaa !5
  %31 = getelementptr inbounds %struct.vq_Region, ptr %30, i32 0, i32 0
  %32 = load i16, ptr %31, align 8, !tbaa !9
  %33 = zext i16 %32 to i64
  %34 = mul i64 24, %33
  %35 = add i64 8, %34
  %36 = call i32 @strncmp(ptr noundef %28, ptr noundef %29, i64 noundef %35) #2
  store i32 %36, ptr %3, align 4
  br label %37

37:                                               ; preds = %27, %26, %15
  %38 = load i32, ptr %3, align 4
  ret i32 %38
}

; Function Attrs: nounwind willreturn memory(read)
declare i32 @strncmp(ptr noundef, ptr noundef, i64 noundef) #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 = { nounwind willreturn memory(read) "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 willreturn memory(read) }

!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 = !{!"short", !7, i64 0}


; 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 nofree nounwind willreturn memory(argmem: read) uwtable
define dso_local i32 @vq_compareRegion(ptr nocapture noundef readonly %0, ptr nocapture noundef readonly %1) local_unnamed_addr #0 {
  %3 = load i16, ptr %0, align 8, !tbaa !5
  %4 = load i16, ptr %1, align 8, !tbaa !5
  %5 = icmp ult i16 %3, %4
  br i1 %5, label %13, label %6

6:                                                ; preds = %2
  %7 = icmp ugt i16 %3, %4
  br i1 %7, label %13, label %8

8:                                                ; preds = %6
  %9 = zext i16 %3 to i64
  %10 = mul nuw nsw i64 %9, 24
  %11 = add nuw nsw i64 %10, 8
  %12 = tail call i32 @strncmp(ptr noundef nonnull dereferenceable(1) %0, ptr noundef nonnull dereferenceable(1) %1, i64 noundef %11) #2
  br label %13

13:                                               ; preds = %6, %2, %8
  %.0 = phi i32 [ %12, %8 ], [ -1, %2 ], [ 1, %6 ]
  ret i32 %.0
}

; Function Attrs: mustprogress nofree nounwind willreturn memory(argmem: read)
declare i32 @strncmp(ptr nocapture noundef, ptr nocapture noundef, i64 noundef) local_unnamed_addr #1

attributes #0 = { mustprogress nofree nounwind willreturn memory(argmem: read) 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 nofree nounwind willreturn memory(argmem: read) "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 willreturn memory(read) }

!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 = !{!"short", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}


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