; LLVM IR from masyagin1998/GCI :: src/lexer (pos)

; 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.POS = type { ptr, i64, i64, i64, i64 }

; Function Attrs: inlinehint nounwind uwtable
declare dso_local i32 @pos_get_code(ptr noundef) #0

; Function Attrs: inlinehint nounwind uwtable
declare dso_local i32 @pos_is_digit(ptr noundef) #0

; Function Attrs: inlinehint nounwind uwtable
declare dso_local i32 @pos_is_letter(ptr noundef) #0

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nounwind uwtable
declare dso_local void @pos_next(ptr dead_on_unwind noalias writable sret(%struct.POS) align 8, ptr noundef) #3

; Function Attrs: nounwind uwtable
define dso_local i32 @pos_check_keyword(ptr noundef %0, ptr noundef %1, i64 noundef %2) #3 {
  %4 = alloca i32, align 4
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca i64, align 8
  %8 = alloca i64, align 8
  %9 = alloca %struct.POS, align 8
  %10 = alloca i32, align 4
  %11 = alloca %struct.POS, align 8
  store ptr %0, ptr %5, align 8, !tbaa !5
  store ptr %1, ptr %6, align 8, !tbaa !5
  store i64 %2, ptr %7, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #4
  store i64 0, ptr %8, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 40, ptr %9) #4
  %12 = load ptr, ptr %5, align 8, !tbaa !5
  call void @llvm.memcpy.p0.p0.i64(ptr align 8 %9, ptr align 8 %12, i64 40, i1 false), !tbaa.struct !11
  br label %13

13:                                               ; preds = %26, %3
  %14 = load i64, ptr %8, align 8, !tbaa !9
  %15 = load i64, ptr %7, align 8, !tbaa !9
  %16 = icmp ne i64 %14, %15
  br i1 %16, label %17, label %29

17:                                               ; preds = %13
  %18 = load ptr, ptr %6, align 8, !tbaa !5
  %19 = load i64, ptr %8, align 8, !tbaa !9
  %20 = getelementptr inbounds i8, ptr %18, i64 %19
  %21 = load i8, ptr %20, align 1, !tbaa !12
  %22 = sext i8 %21 to i32
  %23 = call i32 @pos_get_code(ptr noundef %9)
  %24 = icmp ne i32 %22, %23
  br i1 %24, label %25, label %26

25:                                               ; preds = %17
  store i32 0, ptr %4, align 4
  store i32 1, ptr %10, align 4
  br label %37

26:                                               ; preds = %17
  call void @llvm.lifetime.start.p0(i64 40, ptr %11) #4
  call void @pos_next(ptr dead_on_unwind writable sret(%struct.POS) align 8 %11, ptr noundef %9)
  call void @llvm.memcpy.p0.p0.i64(ptr align 8 %9, ptr align 8 %11, i64 40, i1 false), !tbaa.struct !11
  call void @llvm.lifetime.end.p0(i64 40, ptr %11) #4
  %27 = load i64, ptr %8, align 8, !tbaa !9
  %28 = add i64 %27, 1
  store i64 %28, ptr %8, align 8, !tbaa !9
  br label %13, !llvm.loop !13

29:                                               ; preds = %13
  %30 = call i32 @pos_is_letter(ptr noundef %9)
  %31 = icmp ne i32 %30, 0
  br i1 %31, label %36, label %32

32:                                               ; preds = %29
  %33 = call i32 @pos_is_digit(ptr noundef %9)
  %34 = icmp ne i32 %33, 0
  br i1 %34, label %36, label %35

35:                                               ; preds = %32
  store i32 1, ptr %4, align 4
  store i32 1, ptr %10, align 4
  br label %37

36:                                               ; preds = %32, %29
  store i32 0, ptr %4, align 4
  store i32 1, ptr %10, align 4
  br label %37

37:                                               ; preds = %36, %35, %25
  call void @llvm.lifetime.end.p0(i64 40, ptr %9) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #4
  %38 = load i32, ptr %4, align 4
  ret i32 %38
}

attributes #0 = { inlinehint 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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
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, !10, i64 0}
!10 = !{!"long", !7, i64 0}
!11 = !{i64 0, i64 8, !5, i64 8, i64 8, !9, i64 16, i64 8, !9, i64 24, i64 8, !9, i64 32, i64 8, !9}
!12 = !{!7, !7, i64 0}
!13 = distinct !{!13, !14}
!14 = !{!"llvm.loop.mustprogress"}


; 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.POS = type { ptr, i64, i64, i64, i64 }

; Function Attrs: inlinehint nounwind uwtable
declare dso_local i32 @pos_get_code(ptr noundef) local_unnamed_addr #0

; Function Attrs: inlinehint nounwind uwtable
declare dso_local i32 @pos_is_digit(ptr noundef) local_unnamed_addr #0

; Function Attrs: inlinehint nounwind uwtable
declare dso_local i32 @pos_is_letter(ptr noundef) local_unnamed_addr #0

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: mustprogress nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #2

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nounwind uwtable
declare dso_local void @pos_next(ptr dead_on_unwind noalias writable sret(%struct.POS) align 8, ptr noundef) local_unnamed_addr #3

; Function Attrs: nounwind uwtable
define dso_local range(i32 0, 2) i32 @pos_check_keyword(ptr nocapture noundef readonly %0, ptr nocapture noundef readonly %1, i64 noundef %2) local_unnamed_addr #3 {
  %4 = alloca %struct.POS, align 8
  %5 = alloca %struct.POS, align 8
  call void @llvm.lifetime.start.p0(i64 40, ptr nonnull %4) #4
  call void @llvm.memcpy.p0.p0.i64(ptr noundef nonnull align 8 dereferenceable(40) %4, ptr noundef nonnull align 8 dereferenceable(40) %0, i64 40, i1 false), !tbaa.struct !5
  %.not10 = icmp eq i64 %2, 0
  br i1 %.not10, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %3, %10
  %.011 = phi i64 [ %11, %10 ], [ 0, %3 ]
  %6 = getelementptr inbounds i8, ptr %1, i64 %.011
  %7 = load i8, ptr %6, align 1, !tbaa !12
  %8 = sext i8 %7 to i32
  %9 = call i32 @pos_get_code(ptr noundef nonnull %4)
  %.not9 = icmp eq i32 %9, %8
  br i1 %.not9, label %10, label %.loopexit

10:                                               ; preds = %.lr.ph
  call void @llvm.lifetime.start.p0(i64 40, ptr nonnull %5) #4
  call void @pos_next(ptr dead_on_unwind nonnull writable sret(%struct.POS) align 8 %5, ptr noundef nonnull %4)
  call void @llvm.memcpy.p0.p0.i64(ptr noundef nonnull align 8 dereferenceable(40) %4, ptr noundef nonnull align 8 dereferenceable(40) %5, i64 40, i1 false), !tbaa.struct !5
  call void @llvm.lifetime.end.p0(i64 40, ptr nonnull %5) #4
  %11 = add nuw i64 %.011, 1
  %.not = icmp eq i64 %11, %2
  br i1 %.not, label %._crit_edge, label %.lr.ph, !llvm.loop !13

._crit_edge:                                      ; preds = %10, %3
  %12 = call i32 @pos_is_letter(ptr noundef nonnull %4)
  %.not7 = icmp eq i32 %12, 0
  br i1 %.not7, label %13, label %15

13:                                               ; preds = %._crit_edge
  %14 = call i32 @pos_is_digit(ptr noundef nonnull %4)
  %.not8 = icmp eq i32 %14, 0
  br i1 %.not8, label %.loopexit, label %15

15:                                               ; preds = %13, %._crit_edge
  br label %.loopexit

.loopexit:                                        ; preds = %.lr.ph, %13, %15
  %.06 = phi i32 [ 0, %15 ], [ 1, %13 ], [ 0, %.lr.ph ]
  call void @llvm.lifetime.end.p0(i64 40, ptr nonnull %4) #4
  ret i32 %.06
}

attributes #0 = { inlinehint 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 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: readwrite) }
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 = !{i64 0, i64 8, !6, i64 8, i64 8, !10, i64 16, i64 8, !10, i64 24, i64 8, !10, i64 32, i64 8, !10}
!6 = !{!7, !7, i64 0}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!11, !11, i64 0}
!11 = !{!"long", !8, i64 0}
!12 = !{!8, !8, i64 0}
!13 = distinct !{!13, !14}
!14 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: GlobalOptPass,IPSCCPPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass