; LLVM IR from buzz-lang/Buzz :: src/buzz (buzzparser)

; 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.strarray_data_s = type { ptr, i16 }

; Function Attrs: nounwind uwtable
define dso_local i32 @string_cmp(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 = load ptr, ptr %6, align 8, !tbaa !5
  %8 = getelementptr inbounds %struct.strarray_data_s, ptr %7, i32 0, i32 1
  %9 = load i16, ptr %8, align 8, !tbaa !9
  %10 = zext i16 %9 to i32
  %11 = load ptr, ptr %5, align 8, !tbaa !5
  %12 = load ptr, ptr %11, align 8, !tbaa !5
  %13 = getelementptr inbounds %struct.strarray_data_s, ptr %12, i32 0, i32 1
  %14 = load i16, ptr %13, align 8, !tbaa !9
  %15 = zext i16 %14 to i32
  %16 = icmp slt i32 %10, %15
  br i1 %16, label %17, label %18

17:                                               ; preds = %2
  store i32 -1, ptr %3, align 4
  br label %32

18:                                               ; preds = %2
  %19 = load ptr, ptr %4, align 8, !tbaa !5
  %20 = load ptr, ptr %19, align 8, !tbaa !5
  %21 = getelementptr inbounds %struct.strarray_data_s, ptr %20, i32 0, i32 1
  %22 = load i16, ptr %21, align 8, !tbaa !9
  %23 = zext i16 %22 to i32
  %24 = load ptr, ptr %5, align 8, !tbaa !5
  %25 = load ptr, ptr %24, align 8, !tbaa !5
  %26 = getelementptr inbounds %struct.strarray_data_s, ptr %25, i32 0, i32 1
  %27 = load i16, ptr %26, align 8, !tbaa !9
  %28 = zext i16 %27 to i32
  %29 = icmp sgt i32 %23, %28
  br i1 %29, label %30, label %31

30:                                               ; preds = %18
  store i32 1, ptr %3, align 4
  br label %32

31:                                               ; preds = %18
  store i32 0, ptr %3, align 4
  br label %32

32:                                               ; preds = %31, %30, %17
  %33 = load i32, ptr %3, align 4
  ret i32 %33
}

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" }

!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 8}
!10 = !{!"strarray_data_s", !6, i64 0, !11, i64 8}
!11 = !{!"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 norecurse nosync nounwind willreturn memory(read, inaccessiblemem: none) uwtable
define dso_local range(i32 -1, 2) i32 @string_cmp(ptr nocapture noundef readonly %0, ptr nocapture noundef readonly %1) local_unnamed_addr #0 {
  %3 = load ptr, ptr %0, align 8, !tbaa !5
  %4 = getelementptr inbounds i8, ptr %3, i64 8
  %5 = load i16, ptr %4, align 8, !tbaa !9
  %6 = load ptr, ptr %1, align 8, !tbaa !5
  %7 = getelementptr inbounds i8, ptr %6, i64 8
  %8 = load i16, ptr %7, align 8, !tbaa !9
  %9 = icmp ult i16 %5, %8
  %10 = icmp ugt i16 %5, %8
  %. = zext i1 %10 to i32
  %.0 = select i1 %9, i32 -1, i32 %.
  ret i32 %.0
}

attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn memory(read, inaccessiblemem: none) 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" }

!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 8}
!10 = !{!"strarray_data_s", !6, i64 0, !11, i64 8}
!11 = !{!"short", !7, i64 0}


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