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

; 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"

%"class.__sanitizer::BlockingMutex" = type { [10 x i64], i64 }

@.str.2 = external hidden unnamed_addr constant [108 x i8], align 1
@.str.5 = external hidden unnamed_addr constant [20 x i8], align 1

; 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: nocallback nofree nosync nounwind willreturn memory(none)
declare i64 @llvm.expect.i64(i64, i64) #1

; Function Attrs: noreturn
declare void @_ZN11__sanitizer11CheckFailedEPKciS1_yy(ptr noundef, i32 noundef, ptr noundef, i64 noundef, i64 noundef) #2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN11__sanitizer13BlockingMutex4LockEv(ptr noundef nonnull align 8 dereferenceable(88) %0) #3 align 2 {
  %2 = alloca ptr, align 8
  %3 = alloca i64, align 8
  %4 = alloca i64, align 8
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  store ptr %0, ptr %2, align 8, !tbaa !5
  %7 = load ptr, ptr %2, align 8
  br label %8

8:                                                ; preds = %1
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #6
  %9 = getelementptr inbounds %"class.__sanitizer::BlockingMutex", ptr %7, i32 0, i32 1
  %10 = load i64, ptr %9, align 8, !tbaa !9
  store i64 %10, ptr %3, align 8, !tbaa !12
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #6
  store i64 0, ptr %4, align 8, !tbaa !12
  %11 = load i64, ptr %3, align 8, !tbaa !12
  %12 = load i64, ptr %4, align 8, !tbaa !12
  %13 = icmp eq i64 %11, %12
  %14 = xor i1 %13, true
  %15 = xor i1 %14, true
  %16 = xor i1 %15, true
  %17 = zext i1 %16 to i64
  %18 = call i64 @llvm.expect.i64(i64 %17, i64 0)
  %19 = icmp ne i64 %18, 0
  br i1 %19, label %20, label %23

20:                                               ; preds = %8
  %21 = load i64, ptr %3, align 8, !tbaa !12
  %22 = load i64, ptr %4, align 8, !tbaa !12
  call void @_ZN11__sanitizer11CheckFailedEPKciS1_yy(ptr noundef @.str.2, i32 noundef 523, ptr noundef @.str.5, i64 noundef %21, i64 noundef %22) #7
  unreachable

23:                                               ; preds = %8
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #6
  br label %24

24:                                               ; preds = %23
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #6
  %25 = getelementptr inbounds %"class.__sanitizer::BlockingMutex", ptr %7, i32 0, i32 0
  store ptr %25, ptr %5, align 8, !tbaa !5
  %26 = load ptr, ptr %5, align 8, !tbaa !5
  %27 = call noundef i32 @_ZN11__sanitizer15atomic_exchangeINS_15atomic_uint32_tEEENT_4TypeEPVS2_S3_NS_12memory_orderE(ptr noundef %26, i32 noundef 1, i32 noundef 4)
  %28 = icmp eq i32 %27, 0
  br i1 %28, label %29, label %30

29:                                               ; preds = %24
  store i32 1, ptr %6, align 4
  br label %40

30:                                               ; preds = %24
  br label %31

31:                                               ; preds = %35, %30
  %32 = load ptr, ptr %5, align 8, !tbaa !5
  %33 = call noundef i32 @_ZN11__sanitizer15atomic_exchangeINS_15atomic_uint32_tEEENT_4TypeEPVS2_S3_NS_12memory_orderE(ptr noundef %32, i32 noundef 2, i32 noundef 4)
  %34 = icmp ne i32 %33, 0
  br i1 %34, label %35, label %39

35:                                               ; preds = %31
  %36 = load ptr, ptr %5, align 8, !tbaa !5
  %37 = ptrtoint ptr %36 to i64
  %38 = call noundef i64 @_ZN11__sanitizerL16internal_syscallImiNS_10MutexStateEiiiEEmyT_T0_T1_T2_T3_T4_(i64 noundef 202, i64 noundef %37, i32 noundef 0, i32 noundef 2, i32 noundef 0, i32 noundef 0, i32 noundef 0)
  br label %31, !llvm.loop !14

39:                                               ; preds = %31
  store i32 0, ptr %6, align 4
  br label %40

40:                                               ; preds = %39, %29
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #6
  %41 = load i32, ptr %6, align 4
  switch i32 %41, label %43 [
    i32 0, label %42
    i32 1, label %42
  ]

42:                                               ; preds = %40, %40
  ret void

43:                                               ; preds = %40
  unreachable
}

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef i32 @_ZN11__sanitizer15atomic_exchangeINS_15atomic_uint32_tEEENT_4TypeEPVS2_S3_NS_12memory_orderE(ptr noundef, i32 noundef, i32 noundef) #4

; Function Attrs: mustprogress nounwind uwtable
declare hidden noundef i64 @_ZN11__sanitizerL16internal_syscallImiNS_10MutexStateEiiiEEmyT_T0_T1_T2_T3_T4_(i64 noundef, i64 noundef, i32 noundef, i32 noundef, i32 noundef, i32 noundef, i32 noundef) #5

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { nocallback nofree nosync nounwind willreturn memory(none) }
attributes #2 = { noreturn "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 = { 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 #4 = { inlinehint mustprogress 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 #5 = { mustprogress 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 #6 = { nounwind }
attributes #7 = { noreturn }

!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++ TBAA"}
!9 = !{!10, !11, i64 80}
!10 = !{!"_ZTSN11__sanitizer13BlockingMutexE", !7, i64 0, !11, i64 80}
!11 = !{!"long", !7, i64 0}
!12 = !{!13, !13, i64 0}
!13 = !{!"long long", !7, i64 0}
!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"

@.str.2 = external hidden unnamed_addr constant [108 x i8], align 1
@.str.5 = external hidden unnamed_addr constant [20 x i8], align 1

; Function Attrs: noreturn
declare void @_ZN11__sanitizer11CheckFailedEPKciS1_yy(ptr noundef, i32 noundef, ptr noundef, i64 noundef, i64 noundef) local_unnamed_addr #0

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN11__sanitizer13BlockingMutex4LockEv(ptr noundef nonnull align 8 dereferenceable(88) %0) local_unnamed_addr #1 align 2 {
  %2 = getelementptr inbounds i8, ptr %0, i64 80
  %3 = load i64, ptr %2, align 8, !tbaa !5
  %.not = icmp eq i64 %3, 0
  br i1 %.not, label %5, label %4, !prof !10

4:                                                ; preds = %1
  tail call void @_ZN11__sanitizer11CheckFailedEPKciS1_yy(ptr noundef nonnull @.str.2, i32 noundef 523, ptr noundef nonnull @.str.5, i64 noundef %3, i64 noundef 0) #4
  unreachable

5:                                                ; preds = %1
  %6 = tail call noundef i32 @_ZN11__sanitizer15atomic_exchangeINS_15atomic_uint32_tEEENT_4TypeEPVS2_S3_NS_12memory_orderE(ptr noundef nonnull %0, i32 noundef 1, i32 noundef 4)
  %7 = icmp eq i32 %6, 0
  br i1 %7, label %.loopexit, label %.preheader

.preheader:                                       ; preds = %5
  %8 = tail call noundef i32 @_ZN11__sanitizer15atomic_exchangeINS_15atomic_uint32_tEEENT_4TypeEPVS2_S3_NS_12memory_orderE(ptr noundef nonnull %0, i32 noundef 2, i32 noundef 4)
  %.not78 = icmp eq i32 %8, 0
  br i1 %.not78, label %.loopexit, label %.lr.ph

.lr.ph:                                           ; preds = %.preheader
  %9 = ptrtoint ptr %0 to i64
  br label %10

10:                                               ; preds = %.lr.ph, %10
  %11 = tail call noundef i64 @_ZN11__sanitizerL16internal_syscallImiNS_10MutexStateEiiiEEmyT_T0_T1_T2_T3_T4_(i64 noundef 202, i64 noundef %9, i32 noundef 0, i32 noundef 2, i32 noundef 0, i32 noundef 0, i32 noundef 0)
  %12 = tail call noundef i32 @_ZN11__sanitizer15atomic_exchangeINS_15atomic_uint32_tEEENT_4TypeEPVS2_S3_NS_12memory_orderE(ptr noundef nonnull %0, i32 noundef 2, i32 noundef 4)
  %.not7 = icmp eq i32 %12, 0
  br i1 %.not7, label %.loopexit, label %10, !llvm.loop !11

.loopexit:                                        ; preds = %10, %.preheader, %5
  ret void
}

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef i32 @_ZN11__sanitizer15atomic_exchangeINS_15atomic_uint32_tEEENT_4TypeEPVS2_S3_NS_12memory_orderE(ptr noundef, i32 noundef, i32 noundef) local_unnamed_addr #2

; Function Attrs: mustprogress nounwind uwtable
declare hidden noundef i64 @_ZN11__sanitizerL16internal_syscallImiNS_10MutexStateEiiiEEmyT_T0_T1_T2_T3_T4_(i64 noundef, i64 noundef, i32 noundef, i32 noundef, i32 noundef, i32 noundef, i32 noundef) local_unnamed_addr #3

attributes #0 = { noreturn "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 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 = { inlinehint mustprogress 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 #3 = { mustprogress 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 = { noreturn }

!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, !9, i64 80}
!6 = !{!"_ZTSN11__sanitizer13BlockingMutexE", !7, i64 0, !9, i64 80}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!"long", !7, i64 0}
!10 = !{!"branch_weights", !"expected", i32 2000, i32 1}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}


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