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

; 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::FlagParser" = type { ptr, i32, ptr, i64 }
%"struct.__sanitizer::FlagParser::Flag" = type { ptr, ptr, ptr }

@.str = external hidden unnamed_addr constant [25 x i8], align 1
@_ZN11__sanitizer17SanitizerToolNameE = external global ptr, align 8
@.str.1 = external hidden unnamed_addr constant [12 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: mustprogress uwtable
define dso_local void @_ZN11__sanitizer10FlagParser21PrintFlagDescriptionsEv(ptr noundef nonnull align 8 dereferenceable(32) %0) #1 align 2 {
  %2 = alloca ptr, align 8
  %3 = alloca i32, align 4
  store ptr %0, ptr %2, align 8, !tbaa !5
  %4 = load ptr, ptr %2, align 8
  %5 = load ptr, ptr @_ZN11__sanitizer17SanitizerToolNameE, align 8, !tbaa !5
  call void (ptr, ...) @_ZN11__sanitizer6PrintfEPKcz(ptr noundef @.str, ptr noundef %5)
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #3
  store i32 0, ptr %3, align 4, !tbaa !9
  br label %6

6:                                                ; preds = %27, %1
  %7 = load i32, ptr %3, align 4, !tbaa !9
  %8 = getelementptr inbounds %"class.__sanitizer::FlagParser", ptr %4, i32 0, i32 1
  %9 = load i32, ptr %8, align 8, !tbaa !11
  %10 = icmp slt i32 %7, %9
  br i1 %10, label %12, label %11

11:                                               ; preds = %6
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #3
  br label %30

12:                                               ; preds = %6
  %13 = getelementptr inbounds %"class.__sanitizer::FlagParser", ptr %4, i32 0, i32 0
  %14 = load ptr, ptr %13, align 8, !tbaa !14
  %15 = load i32, ptr %3, align 4, !tbaa !9
  %16 = sext i32 %15 to i64
  %17 = getelementptr inbounds %"struct.__sanitizer::FlagParser::Flag", ptr %14, i64 %16
  %18 = getelementptr inbounds %"struct.__sanitizer::FlagParser::Flag", ptr %17, i32 0, i32 0
  %19 = load ptr, ptr %18, align 8, !tbaa !15
  %20 = getelementptr inbounds %"class.__sanitizer::FlagParser", ptr %4, i32 0, i32 0
  %21 = load ptr, ptr %20, align 8, !tbaa !14
  %22 = load i32, ptr %3, align 4, !tbaa !9
  %23 = sext i32 %22 to i64
  %24 = getelementptr inbounds %"struct.__sanitizer::FlagParser::Flag", ptr %21, i64 %23
  %25 = getelementptr inbounds %"struct.__sanitizer::FlagParser::Flag", ptr %24, i32 0, i32 1
  %26 = load ptr, ptr %25, align 8, !tbaa !17
  call void (ptr, ...) @_ZN11__sanitizer6PrintfEPKcz(ptr noundef @.str.1, ptr noundef %19, ptr noundef %26)
  br label %27

27:                                               ; preds = %12
  %28 = load i32, ptr %3, align 4, !tbaa !9
  %29 = add nsw i32 %28, 1
  store i32 %29, ptr %3, align 4, !tbaa !9
  br label %6, !llvm.loop !18

30:                                               ; preds = %11
  ret void
}

declare void @_ZN11__sanitizer6PrintfEPKcz(ptr noundef, ...) #2

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 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{!12, !10, i64 8}
!12 = !{!"_ZTSN11__sanitizer10FlagParserE", !6, i64 0, !10, i64 8, !6, i64 16, !13, i64 24}
!13 = !{!"long", !7, i64 0}
!14 = !{!12, !6, i64 0}
!15 = !{!16, !6, i64 0}
!16 = !{!"_ZTSN11__sanitizer10FlagParser4FlagE", !6, i64 0, !6, i64 8, !6, i64 16}
!17 = !{!16, !6, i64 8}
!18 = distinct !{!18, !19}
!19 = !{!"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.__sanitizer::FlagParser::Flag" = type { ptr, ptr, ptr }

@.str = external hidden unnamed_addr constant [25 x i8], align 1
@_ZN11__sanitizer17SanitizerToolNameE = external local_unnamed_addr global ptr, align 8
@.str.1 = external hidden unnamed_addr constant [12 x i8], align 1

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN11__sanitizer10FlagParser21PrintFlagDescriptionsEv(ptr nocapture noundef nonnull readonly align 8 dereferenceable(32) %0) local_unnamed_addr #0 align 2 {
  %2 = load ptr, ptr @_ZN11__sanitizer17SanitizerToolNameE, align 8, !tbaa !5
  tail call void (ptr, ...) @_ZN11__sanitizer6PrintfEPKcz(ptr noundef nonnull @.str, ptr noundef %2)
  %3 = getelementptr inbounds i8, ptr %0, i64 8
  %4 = load i32, ptr %3, align 8, !tbaa !9
  %5 = icmp sgt i32 %4, 0
  br i1 %5, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %.lr.ph, %1
  ret void

.lr.ph:                                           ; preds = %1, %.lr.ph
  %indvars.iv = phi i64 [ %indvars.iv.next, %.lr.ph ], [ 0, %1 ]
  %6 = load ptr, ptr %0, align 8, !tbaa !13
  %7 = getelementptr inbounds %"struct.__sanitizer::FlagParser::Flag", ptr %6, i64 %indvars.iv
  %8 = load ptr, ptr %7, align 8, !tbaa !14
  %9 = getelementptr inbounds i8, ptr %7, i64 8
  %10 = load ptr, ptr %9, align 8, !tbaa !16
  tail call void (ptr, ...) @_ZN11__sanitizer6PrintfEPKcz(ptr noundef nonnull @.str.1, ptr noundef %8, ptr noundef %10)
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %11 = load i32, ptr %3, align 8, !tbaa !9
  %12 = sext i32 %11 to i64
  %13 = icmp slt i64 %indvars.iv.next, %12
  br i1 %13, label %.lr.ph, label %._crit_edge, !llvm.loop !17
}

declare void @_ZN11__sanitizer6PrintfEPKcz(ptr noundef, ...) local_unnamed_addr #1

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)"}
!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 8}
!10 = !{!"_ZTSN11__sanitizer10FlagParserE", !6, i64 0, !11, i64 8, !6, i64 16, !12, i64 24}
!11 = !{!"int", !7, i64 0}
!12 = !{!"long", !7, i64 0}
!13 = !{!10, !6, i64 0}
!14 = !{!15, !6, i64 0}
!15 = !{!"_ZTSN11__sanitizer10FlagParser4FlagE", !6, i64 0, !6, i64 8, !6, i64 16}
!16 = !{!15, !6, i64 8}
!17 = distinct !{!17, !18}
!18 = !{!"llvm.loop.mustprogress"}


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