; LLVM IR from caryll/otfcc :: lib/libcff (charstring-il)

; 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.cff_CharstringIL = type { i32, i32, ptr }
%struct.cff_CharstringInstruction = type { i32, i32, %union.anon }
%union.anon = type { double }

; 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
declare dso_local zeroext i1 @instruction_eq(ptr noundef, ptr noundef) #1

; Function Attrs: nounwind uwtable
define dso_local zeroext i1 @cff_ilEqual(ptr noundef %0, ptr noundef %1) #1 {
  %3 = alloca i1, align 1
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  %8 = load ptr, ptr %4, align 8, !tbaa !5
  %9 = icmp ne ptr %8, null
  br i1 %9, label %10, label %13

10:                                               ; preds = %2
  %11 = load ptr, ptr %5, align 8, !tbaa !5
  %12 = icmp ne ptr %11, null
  br i1 %12, label %14, label %13

13:                                               ; preds = %10, %2
  store i1 false, ptr %3, align 1
  br label %53

14:                                               ; preds = %10
  %15 = load ptr, ptr %4, align 8, !tbaa !5
  %16 = getelementptr inbounds %struct.cff_CharstringIL, ptr %15, i32 0, i32 0
  %17 = load i32, ptr %16, align 8, !tbaa !9
  %18 = load ptr, ptr %5, align 8, !tbaa !5
  %19 = getelementptr inbounds %struct.cff_CharstringIL, ptr %18, i32 0, i32 0
  %20 = load i32, ptr %19, align 8, !tbaa !9
  %21 = icmp ne i32 %17, %20
  br i1 %21, label %22, label %23

22:                                               ; preds = %14
  store i1 false, ptr %3, align 1
  br label %53

23:                                               ; preds = %14
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #2
  store i32 0, ptr %6, align 4, !tbaa !12
  br label %24

24:                                               ; preds = %47, %23
  %25 = load i32, ptr %6, align 4, !tbaa !12
  %26 = load ptr, ptr %4, align 8, !tbaa !5
  %27 = getelementptr inbounds %struct.cff_CharstringIL, ptr %26, i32 0, i32 0
  %28 = load i32, ptr %27, align 8, !tbaa !9
  %29 = icmp ult i32 %25, %28
  br i1 %29, label %31, label %30

30:                                               ; preds = %24
  store i32 2, ptr %7, align 4
  br label %50

31:                                               ; preds = %24
  %32 = load ptr, ptr %4, align 8, !tbaa !5
  %33 = getelementptr inbounds %struct.cff_CharstringIL, ptr %32, i32 0, i32 2
  %34 = load ptr, ptr %33, align 8, !tbaa !13
  %35 = load i32, ptr %6, align 4, !tbaa !12
  %36 = zext i32 %35 to i64
  %37 = getelementptr inbounds %struct.cff_CharstringInstruction, ptr %34, i64 %36
  %38 = load ptr, ptr %5, align 8, !tbaa !5
  %39 = getelementptr inbounds %struct.cff_CharstringIL, ptr %38, i32 0, i32 2
  %40 = load ptr, ptr %39, align 8, !tbaa !13
  %41 = load i32, ptr %6, align 4, !tbaa !12
  %42 = zext i32 %41 to i64
  %43 = getelementptr inbounds %struct.cff_CharstringInstruction, ptr %40, i64 %42
  %44 = call zeroext i1 @instruction_eq(ptr noundef %37, ptr noundef %43)
  br i1 %44, label %46, label %45

45:                                               ; preds = %31
  store i1 false, ptr %3, align 1
  store i32 1, ptr %7, align 4
  br label %50

46:                                               ; preds = %31
  br label %47

47:                                               ; preds = %46
  %48 = load i32, ptr %6, align 4, !tbaa !12
  %49 = add i32 %48, 1
  store i32 %49, ptr %6, align 4, !tbaa !12
  br label %24, !llvm.loop !14

50:                                               ; preds = %45, %30
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #2
  %51 = load i32, ptr %7, align 4
  switch i32 %51, label %55 [
    i32 2, label %52
    i32 1, label %53
  ]

52:                                               ; preds = %50
  store i1 true, ptr %3, align 1
  br label %53

53:                                               ; preds = %52, %50, %22, %13
  %54 = load i1, ptr %3, align 1
  ret i1 %54

55:                                               ; preds = %50
  unreachable
}

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 }

!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, !6, i64 8}
!11 = !{!"int", !7, i64 0}
!12 = !{!11, !11, i64 0}
!13 = !{!10, !6, i64 8}
!14 = distinct !{!14, !15}
!15 = !{!"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.cff_CharstringInstruction = type { i32, i32, %union.anon }
%union.anon = type { double }

; Function Attrs: nounwind uwtable
declare dso_local zeroext i1 @instruction_eq(ptr noundef, ptr noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local noundef zeroext i1 @cff_ilEqual(ptr noundef readonly %0, ptr noundef readonly %1) local_unnamed_addr #0 {
  %3 = icmp ne ptr %0, null
  %4 = icmp ne ptr %1, null
  %or.cond = and i1 %3, %4
  br i1 %or.cond, label %5, label %.loopexit

5:                                                ; preds = %2
  %6 = load i32, ptr %0, align 8, !tbaa !5
  %7 = load i32, ptr %1, align 8, !tbaa !5
  %.not = icmp eq i32 %6, %7
  br i1 %.not, label %.preheader, label %.loopexit

.preheader:                                       ; preds = %5
  %8 = icmp eq i32 %6, 0
  br i1 %8, label %.loopexit, label %.lr.ph

.lr.ph:                                           ; preds = %.preheader
  %9 = getelementptr inbounds i8, ptr %0, i64 8
  %10 = getelementptr inbounds i8, ptr %1, i64 8
  br label %14

11:                                               ; preds = %14
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %12 = load i32, ptr %0, align 8, !tbaa !5
  %13 = zext i32 %12 to i64
  %.not21 = icmp ult i64 %indvars.iv.next, %13
  br i1 %.not21, label %14, label %.loopexit, !llvm.loop !11

14:                                               ; preds = %.lr.ph, %11
  %indvars.iv = phi i64 [ 0, %.lr.ph ], [ %indvars.iv.next, %11 ]
  %15 = load ptr, ptr %9, align 8, !tbaa !13
  %16 = getelementptr inbounds %struct.cff_CharstringInstruction, ptr %15, i64 %indvars.iv
  %17 = load ptr, ptr %10, align 8, !tbaa !13
  %18 = getelementptr inbounds %struct.cff_CharstringInstruction, ptr %17, i64 %indvars.iv
  %19 = tail call zeroext i1 @instruction_eq(ptr noundef %16, ptr noundef %18)
  br i1 %19, label %11, label %.loopexit

.loopexit:                                        ; preds = %14, %11, %.preheader, %5, %2
  %.1 = phi i1 [ false, %2 ], [ false, %5 ], [ true, %.preheader ], [ %19, %11 ], [ %19, %14 ]
  ret i1 %.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" }

!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, !7, i64 0}
!6 = !{!"", !7, i64 0, !7, i64 4, !10, i64 8}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"any pointer", !8, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = !{!6, !10, i64 8}


; Effective O3 passes: ConstraintEliminationPass,CorrelatedValuePropagationPass,EarlyCSEPass,GVNPass,GlobalOptPass,IPSCCPPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LICMPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass