; LLVM IR from AngoraFuzzer/Angora :: llvm_mode/dfsan_rt/dfsan (dfsan)

; 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"

; Function Attrs: mustprogress uwtable
declare dso_local i32 @__dfsan_union(i32 noundef, i32 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 nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local noundef ptr @_ZN7__dfsan10shadow_forEPv(ptr noundef) #2

; Function Attrs: mustprogress uwtable
define dso_local void @dfsan_add_label(i32 noundef %0, ptr noundef %1, i64 noundef %2) #0 {
  %4 = alloca i32, align 4
  %5 = alloca ptr, align 8
  %6 = alloca i64, align 8
  %7 = alloca ptr, align 8
  store i32 %0, ptr %4, align 4, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !9
  store i64 %2, ptr %6, align 8, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #3
  %8 = load ptr, ptr %5, align 8, !tbaa !9
  %9 = call noundef ptr @_ZN7__dfsan10shadow_forEPv(ptr noundef %8)
  store ptr %9, ptr %7, align 8, !tbaa !9
  br label %10

10:                                               ; preds = %26, %3
  %11 = load i64, ptr %6, align 8, !tbaa !11
  %12 = icmp ne i64 %11, 0
  br i1 %12, label %14, label %13

13:                                               ; preds = %10
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #3
  br label %31

14:                                               ; preds = %10
  %15 = load ptr, ptr %7, align 8, !tbaa !9
  %16 = load i32, ptr %15, align 4, !tbaa !5
  %17 = load i32, ptr %4, align 4, !tbaa !5
  %18 = icmp ne i32 %16, %17
  br i1 %18, label %19, label %25

19:                                               ; preds = %14
  %20 = load ptr, ptr %7, align 8, !tbaa !9
  %21 = load i32, ptr %20, align 4, !tbaa !5
  %22 = load i32, ptr %4, align 4, !tbaa !5
  %23 = call i32 @__dfsan_union(i32 noundef %21, i32 noundef %22)
  %24 = load ptr, ptr %7, align 8, !tbaa !9
  store i32 %23, ptr %24, align 4, !tbaa !5
  br label %25

25:                                               ; preds = %19, %14
  br label %26

26:                                               ; preds = %25
  %27 = load i64, ptr %6, align 8, !tbaa !11
  %28 = add i64 %27, -1
  store i64 %28, ptr %6, align 8, !tbaa !11
  %29 = load ptr, ptr %7, align 8, !tbaa !9
  %30 = getelementptr inbounds i32, ptr %29, i32 1
  store ptr %30, ptr %7, align 8, !tbaa !9
  br label %10, !llvm.loop !13

31:                                               ; preds = %13
  ret void
}

attributes #0 = { mustprogress 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 = { inlinehint mustprogress 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 #3 = { 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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"any pointer", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"long", !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"

; Function Attrs: mustprogress uwtable
declare dso_local i32 @__dfsan_union(i32 noundef, i32 noundef) local_unnamed_addr #0

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local noundef ptr @_ZN7__dfsan10shadow_forEPv(ptr noundef) local_unnamed_addr #1

; Function Attrs: mustprogress uwtable
define dso_local void @dfsan_add_label(i32 noundef %0, ptr noundef %1, i64 noundef %2) local_unnamed_addr #0 {
  %4 = tail call noundef ptr @_ZN7__dfsan10shadow_forEPv(ptr noundef %1)
  %.not12 = icmp eq i64 %2, 0
  br i1 %.not12, label %._crit_edge, label %.lr.ph

._crit_edge:                                      ; preds = %8, %3
  ret void

.lr.ph:                                           ; preds = %3, %8
  %.014 = phi ptr [ %10, %8 ], [ %4, %3 ]
  %.0813 = phi i64 [ %9, %8 ], [ %2, %3 ]
  %5 = load i32, ptr %.014, align 4, !tbaa !5
  %.not11 = icmp eq i32 %5, %0
  br i1 %.not11, label %8, label %6

6:                                                ; preds = %.lr.ph
  %7 = tail call i32 @__dfsan_union(i32 noundef %5, i32 noundef %0)
  store i32 %7, ptr %.014, align 4, !tbaa !5
  br label %8

8:                                                ; preds = %.lr.ph, %6
  %9 = add i64 %.0813, -1
  %10 = getelementptr inbounds i8, ptr %.014, i64 4
  %.not = icmp eq i64 %9, 0
  br i1 %.not, label %._crit_edge, label %.lr.ph, !llvm.loop !9
}

attributes #0 = { mustprogress 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 = { inlinehint mustprogress 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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,SROAPass,SimplifyCFGPass,TailCallElimPass