; 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
define dso_local noundef zeroext i1 @_ZN9TiXmlBase16StreamWhiteSpaceEPSiPNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef %0, ptr noundef %1) #1 align 2 {
  %3 = alloca i1, align 1
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  br label %8

8:                                                ; preds = %33, %2
  %9 = load ptr, ptr %4, align 8, !tbaa !5
  %10 = load ptr, ptr %9, align 8, !tbaa !9
  %11 = getelementptr i8, ptr %10, i64 -24
  %12 = load i64, ptr %11, align 8
  %13 = getelementptr inbounds i8, ptr %9, i64 %12
  %14 = call noundef zeroext i1 @_ZNKSt9basic_iosIcSt11char_traitsIcEE4goodEv(ptr noundef nonnull align 8 dereferenceable(264) %13)
  br i1 %14, label %16, label %15

15:                                               ; preds = %8
  store i1 false, ptr %3, align 1
  br label %34

16:                                               ; preds = %8
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #4
  %17 = load ptr, ptr %4, align 8, !tbaa !5
  %18 = call noundef i32 @_ZNSi4peekEv(ptr noundef nonnull align 8 dereferenceable(16) %17)
  store i32 %18, ptr %6, align 4, !tbaa !11
  %19 = load i32, ptr %6, align 4, !tbaa !11
  %20 = call noundef zeroext i1 @_ZN9TiXmlBase12IsWhiteSpaceEi(i32 noundef %19)
  br i1 %20, label %21, label %24

21:                                               ; preds = %16
  %22 = load i32, ptr %6, align 4, !tbaa !11
  %23 = icmp sle i32 %22, 0
  br i1 %23, label %24, label %25

24:                                               ; preds = %21, %16
  store i1 true, ptr %3, align 1
  store i32 1, ptr %7, align 4
  br label %31

25:                                               ; preds = %21
  %26 = load ptr, ptr %4, align 8, !tbaa !5
  %27 = call noundef i32 @_ZNSi3getEv(ptr noundef nonnull align 8 dereferenceable(16) %26)
  %28 = trunc i32 %27 to i8
  %29 = load ptr, ptr %5, align 8, !tbaa !5
  %30 = call noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEpLEc(ptr noundef nonnull align 8 dereferenceable(32) %29, i8 noundef signext %28)
  store i32 0, ptr %7, align 4
  br label %31

31:                                               ; preds = %25, %24
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #4
  %32 = load i32, ptr %7, align 4
  switch i32 %32, label %36 [
    i32 0, label %33
    i32 1, label %34
  ]

33:                                               ; preds = %31
  br label %8, !llvm.loop !13

34:                                               ; preds = %31, %15
  %35 = load i1, ptr %3, align 1
  ret i1 %35

36:                                               ; preds = %31
  unreachable
}

; 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

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZN9TiXmlBase12IsWhiteSpaceEi(i32 noundef) #3 align 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

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 = { 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 #4 = { 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 = !{!"vtable pointer", !8, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"int", !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
define dso_local noundef zeroext i1 @_ZN9TiXmlBase16StreamWhiteSpaceEPSiPNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef %0, ptr noundef %1) local_unnamed_addr #0 align 2 {
  %3 = load ptr, ptr %0, align 8, !tbaa !5
  %4 = getelementptr i8, ptr %3, i64 -24
  %5 = load i64, ptr %4, align 8
  %6 = getelementptr inbounds i8, ptr %0, i64 %5
  %7 = tail call noundef zeroext i1 @_ZNKSt9basic_iosIcSt11char_traitsIcEE4goodEv(ptr noundef nonnull align 8 dereferenceable(264) %6)
  br i1 %7, label %.lr.ph, label %.thread

.lr.ph:                                           ; preds = %2, %11
  %8 = tail call noundef i32 @_ZNSi4peekEv(ptr noundef nonnull align 8 dereferenceable(16) %0)
  %9 = tail call noundef zeroext i1 @_ZN9TiXmlBase12IsWhiteSpaceEi(i32 noundef %8)
  %10 = icmp sgt i32 %8, 0
  %or.cond.not = and i1 %10, %9
  br i1 %or.cond.not, label %11, label %.thread.loopexit

11:                                               ; preds = %.lr.ph
  %12 = tail call noundef i32 @_ZNSi3getEv(ptr noundef nonnull align 8 dereferenceable(16) %0)
  %13 = trunc i32 %12 to i8
  %14 = tail call noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEpLEc(ptr noundef nonnull align 8 dereferenceable(32) %1, i8 noundef signext %13)
  %15 = load ptr, ptr %0, align 8, !tbaa !5
  %16 = getelementptr i8, ptr %15, i64 -24
  %17 = load i64, ptr %16, align 8
  %18 = getelementptr inbounds i8, ptr %0, i64 %17
  %19 = tail call noundef zeroext i1 @_ZNKSt9basic_iosIcSt11char_traitsIcEE4goodEv(ptr noundef nonnull align 8 dereferenceable(264) %18)
  br i1 %19, label %.lr.ph, label %.thread.loopexit

.thread.loopexit:                                 ; preds = %.lr.ph, %11
  %.lcssa.ph = xor i1 %or.cond.not, true
  br label %.thread

.thread:                                          ; preds = %.thread.loopexit, %2
  %.lcssa = phi i1 [ false, %2 ], [ %.lcssa.ph, %.thread.loopexit ]
  ret i1 %.lcssa
}

; 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

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZN9TiXmlBase12IsWhiteSpaceEi(i32 noundef) local_unnamed_addr #2 align 2

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

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" }
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" }

!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: EarlyCSEPass,GVNPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,SROAPass,SimplifyCFGPass,TailCallElimPass