; LLVM IR from HiroIshida/tinyfk :: urdf_parser/tinyxml (tinyxmlparser)

; 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 noundef zeroext i1 @_ZNKSt9basic_iosIcSt11char_traitsIcEE4goodEv(ptr noundef nonnull align 8 dereferenceable(264)) #1 align 2

declare noundef i32 @_ZNSi4peekEv(ptr noundef nonnull align 8 dereferenceable(16)) #2

declare noundef i32 @_ZNSi3getEv(ptr noundef nonnull align 8 dereferenceable(16)) #2

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEpLEc(ptr noundef nonnull align 8 dereferenceable(32), i8 noundef signext) #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef zeroext i1 @_ZN9TiXmlBase8StreamToEPSiiPNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef %0, i32 noundef %1, ptr noundef %2) #1 align 2 {
  %4 = alloca i1, align 1
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca ptr, align 8
  %8 = alloca i32, align 4
  %9 = alloca i32, align 4
  store ptr %0, ptr %5, align 8, !tbaa !5
  store i32 %1, ptr %6, align 4, !tbaa !9
  store ptr %2, ptr %7, align 8, !tbaa !5
  br label %10

10:                                               ; preds = %37, %3
  %11 = load ptr, ptr %5, align 8, !tbaa !5
  %12 = load ptr, ptr %11, align 8, !tbaa !11
  %13 = getelementptr i8, ptr %12, i64 -24
  %14 = load i64, ptr %13, align 8
  %15 = getelementptr inbounds i8, ptr %11, i64 %14
  %16 = call noundef zeroext i1 @_ZNKSt9basic_iosIcSt11char_traitsIcEE4goodEv(ptr noundef nonnull align 8 dereferenceable(264) %15)
  br i1 %16, label %17, label %38

17:                                               ; preds = %10
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #3
  %18 = load ptr, ptr %5, align 8, !tbaa !5
  %19 = call noundef i32 @_ZNSi4peekEv(ptr noundef nonnull align 8 dereferenceable(16) %18)
  store i32 %19, ptr %8, align 4, !tbaa !9
  %20 = load i32, ptr %8, align 4, !tbaa !9
  %21 = load i32, ptr %6, align 4, !tbaa !9
  %22 = icmp eq i32 %20, %21
  br i1 %22, label %23, label %24

23:                                               ; preds = %17
  store i1 true, ptr %4, align 1
  store i32 1, ptr %9, align 4
  br label %35

24:                                               ; preds = %17
  %25 = load i32, ptr %8, align 4, !tbaa !9
  %26 = icmp sle i32 %25, 0
  br i1 %26, label %27, label %28

27:                                               ; preds = %24
  store i1 false, ptr %4, align 1
  store i32 1, ptr %9, align 4
  br label %35

28:                                               ; preds = %24
  %29 = load ptr, ptr %5, align 8, !tbaa !5
  %30 = call noundef i32 @_ZNSi3getEv(ptr noundef nonnull align 8 dereferenceable(16) %29)
  %31 = load i32, ptr %8, align 4, !tbaa !9
  %32 = trunc i32 %31 to i8
  %33 = load ptr, ptr %7, align 8, !tbaa !5
  %34 = call noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEpLEc(ptr noundef nonnull align 8 dereferenceable(32) %33, i8 noundef signext %32)
  store i32 0, ptr %9, align 4
  br label %35

35:                                               ; preds = %28, %27, %23
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #3
  %36 = load i32, ptr %9, align 4
  switch i32 %36, label %41 [
    i32 0, label %37
    i32 1, label %39
  ]

37:                                               ; preds = %35
  br label %10, !llvm.loop !13

38:                                               ; preds = %10
  store i1 false, ptr %4, align 1
  br label %39

39:                                               ; preds = %38, %35
  %40 = load i1, ptr %4, align 1
  ret i1 %40

41:                                               ; preds = %35
  unreachable
}

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, !12, i64 0}
!12 = !{!"vtable pointer", !8, 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 noundef zeroext i1 @_ZNKSt9basic_iosIcSt11char_traitsIcEE4goodEv(ptr noundef nonnull align 8 dereferenceable(264)) local_unnamed_addr #0 align 2

declare noundef i32 @_ZNSi4peekEv(ptr noundef nonnull align 8 dereferenceable(16)) local_unnamed_addr #1

declare noundef i32 @_ZNSi3getEv(ptr noundef nonnull align 8 dereferenceable(16)) local_unnamed_addr #1

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEpLEc(ptr noundef nonnull align 8 dereferenceable(32), i8 noundef signext) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef zeroext i1 @_ZN9TiXmlBase8StreamToEPSiiPNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef %0, i32 noundef %1, ptr noundef %2) local_unnamed_addr #0 align 2 {
  %4 = load ptr, ptr %0, align 8, !tbaa !5
  %5 = getelementptr i8, ptr %4, i64 -24
  %6 = load i64, ptr %5, align 8
  %7 = getelementptr inbounds i8, ptr %0, i64 %6
  %8 = tail call noundef zeroext i1 @_ZNKSt9basic_iosIcSt11char_traitsIcEE4goodEv(ptr noundef nonnull align 8 dereferenceable(264) %7)
  br i1 %8, label %.lr.ph, label %.thread

.lr.ph:                                           ; preds = %3, %12
  %9 = tail call noundef i32 @_ZNSi4peekEv(ptr noundef nonnull align 8 dereferenceable(16) %0)
  %10 = icmp eq i32 %9, %1
  %11 = icmp slt i32 %9, 1
  %or.cond = or i1 %10, %11
  br i1 %or.cond, label %.thread, label %12

12:                                               ; preds = %.lr.ph
  %13 = tail call noundef i32 @_ZNSi3getEv(ptr noundef nonnull align 8 dereferenceable(16) %0)
  %14 = trunc i32 %9 to i8
  %15 = tail call noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEpLEc(ptr noundef nonnull align 8 dereferenceable(32) %2, i8 noundef signext %14)
  %16 = load ptr, ptr %0, align 8, !tbaa !5
  %17 = getelementptr i8, ptr %16, i64 -24
  %18 = load i64, ptr %17, align 8
  %19 = getelementptr inbounds i8, ptr %0, i64 %18
  %20 = tail call noundef zeroext i1 @_ZNKSt9basic_iosIcSt11char_traitsIcEE4goodEv(ptr noundef nonnull align 8 dereferenceable(264) %19)
  br i1 %20, label %.lr.ph, label %.thread

.thread:                                          ; preds = %12, %.lr.ph, %3
  %.2 = phi i1 [ false, %3 ], [ %10, %.lr.ph ], [ %10, %12 ]
  ret i1 %.2
}

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 = !{!"vtable pointer", !7, i64 0}
!7 = !{!"Simple C++ TBAA"}


; Effective O3 passes: CorrelatedValuePropagationPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,SROAPass,SimplifyCFGPass,TailCallElimPass