; LLVM IR from MikeMirzayanov/testlib :: checkers/acmp.ll (ZN8InStream3eofEv)

; 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"

%struct.InStream = type { ptr, i32, %"class.std::__cxx11::basic_string", i32, i8, i8, i8, i32, %"class.std::__cxx11::basic_string", i32, i64, i64, i64 }
%"class.std::__cxx11::basic_string" = type { %"struct.std::__cxx11::basic_string<char>::_Alloc_hider", i64, %union.anon }
%"struct.std::__cxx11::basic_string<char>::_Alloc_hider" = type { ptr }
%union.anon = type { i64, [8 x i8] }

; Function Attrs: mustprogress uwtable
define dso_local noundef zeroext i1 @_ZN8InStream3eofEv(ptr noundef nonnull align 8 dereferenceable(128) %0) #0 align 2 {
  %2 = alloca i1, align 1
  %3 = alloca ptr, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  %4 = load ptr, ptr %3, align 8
  %5 = getelementptr inbounds %struct.InStream, ptr %4, i32 0, i32 6
  %6 = load i8, ptr %5, align 2, !tbaa !9, !range !17, !noundef !18
  %7 = trunc i8 %6 to i1
  br i1 %7, label %13, label %8

8:                                                ; preds = %1
  %9 = getelementptr inbounds %struct.InStream, ptr %4, i32 0, i32 0
  %10 = load ptr, ptr %9, align 8, !tbaa !19
  %11 = icmp eq ptr null, %10
  br i1 %11, label %12, label %13

12:                                               ; preds = %8
  store i1 true, ptr %2, align 1
  br label %20

13:                                               ; preds = %8, %1
  %14 = getelementptr inbounds %struct.InStream, ptr %4, i32 0, i32 0
  %15 = load ptr, ptr %14, align 8, !tbaa !19
  %16 = load ptr, ptr %15, align 8, !tbaa !20
  %17 = getelementptr inbounds ptr, ptr %16, i64 7
  %18 = load ptr, ptr %17, align 8
  %19 = call noundef zeroext i1 %18(ptr noundef nonnull align 8 dereferenceable(8) %15)
  store i1 %19, ptr %2, align 1
  br label %20

20:                                               ; preds = %13, %12
  %21 = load i1, ptr %2, align 1
  ret i1 %21
}

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" }

!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, !16, i64 54}
!10 = !{!"_ZTS8InStream", !6, i64 0, !11, i64 8, !12, i64 16, !15, i64 48, !16, i64 52, !16, i64 53, !16, i64 54, !11, i64 56, !12, i64 64, !11, i64 96, !14, i64 104, !14, i64 112, !14, i64 120}
!11 = !{!"int", !7, i64 0}
!12 = !{!"_ZTSNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE", !13, i64 0, !14, i64 8, !7, i64 16}
!13 = !{!"_ZTSNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE12_Alloc_hiderE", !6, i64 0}
!14 = !{!"long", !7, i64 0}
!15 = !{!"_ZTS5TMode", !7, i64 0}
!16 = !{!"bool", !7, i64 0}
!17 = !{i8 0, i8 2}
!18 = !{}
!19 = !{!10, !6, i64 0}
!20 = !{!21, !21, i64 0}
!21 = !{!"vtable pointer", !8, 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
define dso_local noundef zeroext i1 @_ZN8InStream3eofEv(ptr nocapture noundef nonnull readonly align 8 dereferenceable(128) %0) local_unnamed_addr #0 align 2 {
  %2 = getelementptr inbounds i8, ptr %0, i64 54
  %3 = load i8, ptr %2, align 2, !tbaa !5, !range !16, !noundef !17
  %4 = trunc nuw i8 %3 to i1
  %5 = load ptr, ptr %0, align 8
  %6 = icmp ne ptr %5, null
  %or.cond.not = select i1 %4, i1 true, i1 %6
  br i1 %or.cond.not, label %7, label %12

7:                                                ; preds = %1
  %8 = load ptr, ptr %5, align 8, !tbaa !18
  %9 = getelementptr inbounds i8, ptr %8, i64 56
  %10 = load ptr, ptr %9, align 8
  %11 = tail call noundef zeroext i1 %10(ptr noundef nonnull align 8 dereferenceable(8) %5)
  br label %12

12:                                               ; preds = %1, %7
  %.0 = phi i1 [ %11, %7 ], [ true, %1 ]
  ret i1 %.0
}

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" }

!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, !15, i64 54}
!6 = !{!"_ZTS8InStream", !7, i64 0, !10, i64 8, !11, i64 16, !14, i64 48, !15, i64 52, !15, i64 53, !15, i64 54, !10, i64 56, !11, i64 64, !10, i64 96, !13, i64 104, !13, i64 112, !13, i64 120}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"int", !8, i64 0}
!11 = !{!"_ZTSNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE", !12, i64 0, !13, i64 8, !8, i64 16}
!12 = !{!"_ZTSNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE12_Alloc_hiderE", !7, i64 0}
!13 = !{!"long", !8, i64 0}
!14 = !{!"_ZTS5TMode", !8, i64 0}
!15 = !{!"bool", !8, i64 0}
!16 = !{i8 0, i8 2}
!17 = !{}
!18 = !{!19, !19, i64 0}
!19 = !{!"vtable pointer", !9, i64 0}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,IPSCCPPass,InstCombinePass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass