; LLVM IR from Morpho-lang/morpho :: src/support/lex.ll (lex_tokendefnwithtokencmp)

; 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.token = type { i32, ptr, i32, i32, i32 }
%struct.tokendefn = type { ptr, i32, ptr }

; 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 uwtable
define dso_local i32 @_lex_tokendefnwithtokencmp(ptr noundef %0, ptr noundef %1) #1 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca i32, align 4
  store ptr %0, ptr %3, align 8, !tbaa !5
  store ptr %1, ptr %4, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #3
  %8 = load ptr, ptr %3, align 8, !tbaa !5
  store ptr %8, ptr %5, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #3
  %9 = load ptr, ptr %4, align 8, !tbaa !5
  store ptr %9, ptr %6, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #3
  %10 = load ptr, ptr %5, align 8, !tbaa !5
  %11 = getelementptr inbounds %struct.token, ptr %10, i32 0, i32 1
  %12 = load ptr, ptr %11, align 8, !tbaa !9
  %13 = load ptr, ptr %6, align 8, !tbaa !5
  %14 = getelementptr inbounds %struct.tokendefn, ptr %13, i32 0, i32 0
  %15 = load ptr, ptr %14, align 8, !tbaa !12
  %16 = load ptr, ptr %5, align 8, !tbaa !5
  %17 = getelementptr inbounds %struct.token, ptr %16, i32 0, i32 2
  %18 = load i32, ptr %17, align 8, !tbaa !14
  %19 = zext i32 %18 to i64
  %20 = call i32 @strncmp(ptr noundef %12, ptr noundef %15, i64 noundef %19) #4
  store i32 %20, ptr %7, align 4, !tbaa !15
  %21 = load i32, ptr %7, align 4, !tbaa !15
  %22 = icmp eq i32 %21, 0
  br i1 %22, label %23, label %47

23:                                               ; preds = %2
  %24 = load ptr, ptr %6, align 8, !tbaa !5
  %25 = getelementptr inbounds %struct.tokendefn, ptr %24, i32 0, i32 0
  %26 = load ptr, ptr %25, align 8, !tbaa !12
  %27 = load ptr, ptr %5, align 8, !tbaa !5
  %28 = getelementptr inbounds %struct.token, ptr %27, i32 0, i32 2
  %29 = load i32, ptr %28, align 8, !tbaa !14
  %30 = zext i32 %29 to i64
  %31 = getelementptr inbounds i8, ptr %26, i64 %30
  %32 = load i8, ptr %31, align 1, !tbaa !16
  %33 = sext i8 %32 to i32
  %34 = icmp ne i32 %33, 0
  br i1 %34, label %35, label %47

35:                                               ; preds = %23
  %36 = load ptr, ptr %6, align 8, !tbaa !5
  %37 = getelementptr inbounds %struct.tokendefn, ptr %36, i32 0, i32 0
  %38 = load ptr, ptr %37, align 8, !tbaa !12
  %39 = load ptr, ptr %5, align 8, !tbaa !5
  %40 = getelementptr inbounds %struct.token, ptr %39, i32 0, i32 2
  %41 = load i32, ptr %40, align 8, !tbaa !14
  %42 = zext i32 %41 to i64
  %43 = getelementptr inbounds i8, ptr %38, i64 %42
  %44 = load i8, ptr %43, align 1, !tbaa !16
  %45 = sext i8 %44 to i32
  %46 = sub nsw i32 0, %45
  store i32 %46, ptr %7, align 4, !tbaa !15
  br label %47

47:                                               ; preds = %35, %23, %2
  %48 = load i32, ptr %7, align 4, !tbaa !15
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #3
  ret i32 %48
}

; Function Attrs: nounwind willreturn memory(read)
declare i32 @strncmp(ptr noundef, ptr noundef, i64 noundef) #2

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = { 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 #3 = { nounwind }
attributes #4 = { 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, !6, i64 8}
!10 = !{!"", !11, i64 0, !6, i64 8, !11, i64 16, !11, i64 20, !11, i64 24}
!11 = !{!"int", !7, i64 0}
!12 = !{!13, !6, i64 0}
!13 = !{!"", !6, i64 0, !11, i64 8, !6, i64 16}
!14 = !{!10, !11, i64 16}
!15 = !{!11, !11, i64 0}
!16 = !{!7, !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(read, inaccessiblemem: none) uwtable
define dso_local i32 @_lex_tokendefnwithtokencmp(ptr nocapture noundef readonly %0, ptr nocapture noundef readonly %1) local_unnamed_addr #0 {
  %3 = getelementptr inbounds i8, ptr %0, i64 8
  %4 = load ptr, ptr %3, align 8, !tbaa !5
  %5 = load ptr, ptr %1, align 8, !tbaa !11
  %6 = getelementptr inbounds i8, ptr %0, i64 16
  %7 = load i32, ptr %6, align 8, !tbaa !13
  %8 = zext i32 %7 to i64
  %9 = tail call i32 @strncmp(ptr noundef %4, ptr noundef %5, i64 noundef %8) #2
  %10 = icmp eq i32 %9, 0
  br i1 %10, label %11, label %17

11:                                               ; preds = %2
  %12 = getelementptr inbounds i8, ptr %5, i64 %8
  %13 = load i8, ptr %12, align 1, !tbaa !14
  %.not = icmp eq i8 %13, 0
  br i1 %.not, label %17, label %14

14:                                               ; preds = %11
  %15 = sext i8 %13 to i32
  %16 = sub nsw i32 0, %15
  br label %17

17:                                               ; preds = %14, %11, %2
  %.0 = phi i32 [ %16, %14 ], [ 0, %11 ], [ %9, %2 ]
  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(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" }
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, !10, i64 8}
!6 = !{!"", !7, i64 0, !10, i64 8, !7, i64 16, !7, i64 20, !7, i64 24}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"any pointer", !8, i64 0}
!11 = !{!12, !10, i64 0}
!12 = !{!"", !10, i64 0, !7, i64 8, !10, i64 16}
!13 = !{!6, !7, i64 16}
!14 = !{!8, !8, i64 0}


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