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

; 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: 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: mustprogress uwtable
declare dso_local noundef i32 @_ZN11__sanitizer17GetNamedMappingFdEPKcm(ptr noundef, i64 noundef) #1

declare noundef i64 @_ZN11__sanitizer13internal_mmapEPvmiiiy(ptr noundef, i64 noundef, i32 noundef, i32 noundef, i32 noundef, i64 noundef) #2

; Function Attrs: mustprogress uwtable
define dso_local noundef ptr @_ZN11__sanitizer17MmapFixedNoAccessEmmPKc(i64 noundef %0, i64 noundef %1, ptr noundef %2) #1 {
  %4 = alloca i64, align 8
  %5 = alloca i64, align 8
  %6 = alloca ptr, align 8
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  store i64 %0, ptr %4, align 8, !tbaa !5
  store i64 %1, ptr %5, align 8, !tbaa !5
  store ptr %2, ptr %6, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #3
  %9 = load ptr, ptr %6, align 8, !tbaa !9
  %10 = icmp ne ptr %9, null
  br i1 %10, label %11, label %15

11:                                               ; preds = %3
  %12 = load ptr, ptr %6, align 8, !tbaa !9
  %13 = load i64, ptr %5, align 8, !tbaa !5
  %14 = call noundef i32 @_ZN11__sanitizer17GetNamedMappingFdEPKcm(ptr noundef %12, i64 noundef %13)
  br label %16

15:                                               ; preds = %3
  br label %16

16:                                               ; preds = %15, %11
  %17 = phi i32 [ %14, %11 ], [ -1, %15 ]
  store i32 %17, ptr %7, align 4, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #3
  store i32 16402, ptr %8, align 4, !tbaa !11
  %18 = load i32, ptr %7, align 4, !tbaa !11
  %19 = icmp eq i32 %18, -1
  br i1 %19, label %20, label %23

20:                                               ; preds = %16
  %21 = load i32, ptr %8, align 4, !tbaa !11
  %22 = or i32 %21, 32
  store i32 %22, ptr %8, align 4, !tbaa !11
  br label %23

23:                                               ; preds = %20, %16
  %24 = load i64, ptr %4, align 8, !tbaa !5
  %25 = inttoptr i64 %24 to ptr
  %26 = load i64, ptr %5, align 8, !tbaa !5
  %27 = load i32, ptr %8, align 4, !tbaa !11
  %28 = load i32, ptr %7, align 4, !tbaa !11
  %29 = call noundef i64 @_ZN11__sanitizer13internal_mmapEPvmiiiy(ptr noundef %25, i64 noundef %26, i32 noundef 0, i32 noundef %27, i32 noundef %28, i64 noundef 0)
  %30 = inttoptr i64 %29 to ptr
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #3
  ret ptr %30
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = { "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 = !{!"long", !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 = !{!"int", !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 uwtable
declare dso_local noundef i32 @_ZN11__sanitizer17GetNamedMappingFdEPKcm(ptr noundef, i64 noundef) local_unnamed_addr #0

declare noundef i64 @_ZN11__sanitizer13internal_mmapEPvmiiiy(ptr noundef, i64 noundef, i32 noundef, i32 noundef, i32 noundef, i64 noundef) local_unnamed_addr #1

; Function Attrs: mustprogress uwtable
define dso_local noundef ptr @_ZN11__sanitizer17MmapFixedNoAccessEmmPKc(i64 noundef %0, i64 noundef %1, ptr noundef %2) local_unnamed_addr #0 {
  %.not = icmp eq ptr %2, null
  br i1 %.not, label %.thread, label %4

4:                                                ; preds = %3
  %5 = tail call noundef i32 @_ZN11__sanitizer17GetNamedMappingFdEPKcm(ptr noundef nonnull %2, i64 noundef %1)
  %6 = icmp eq i32 %5, -1
  %spec.select9 = select i1 %6, i32 16434, i32 16402
  br label %.thread

.thread:                                          ; preds = %4, %3
  %7 = phi i32 [ -1, %3 ], [ %5, %4 ]
  %8 = phi i32 [ 16434, %3 ], [ %spec.select9, %4 ]
  %9 = inttoptr i64 %0 to ptr
  %10 = tail call noundef i64 @_ZN11__sanitizer13internal_mmapEPvmiiiy(ptr noundef %9, i64 noundef %1, i32 noundef 0, i32 noundef %8, i32 noundef %7, i64 noundef 0)
  %11 = inttoptr i64 %10 to ptr
  ret ptr %11
}

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 = { "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)"}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,SROAPass,SimplifyCFGPass,TailCallElimPass