; LLVM IR from SourangshuGhosh/Fluid-Simulation-for-Computer-Graphics :: src (trianglemesh)

; 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.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] }
%"class.std::__cxx11::basic_istringstream" = type { %"class.std::basic_istream.base", %"class.std::__cxx11::basic_stringbuf", %"class.std::basic_ios" }
%"class.std::basic_istream.base" = type { ptr, i64 }
%"class.std::__cxx11::basic_stringbuf" = type { %"class.std::basic_streambuf", i32, %"class.std::__cxx11::basic_string" }
%"class.std::basic_streambuf" = type { ptr, ptr, ptr, ptr, ptr, ptr, ptr, %"class.std::locale" }
%"class.std::locale" = type { ptr }
%"class.std::basic_ios" = type { %"class.std::ios_base", ptr, i8, i8, ptr, ptr, ptr, ptr }
%"class.std::ios_base" = type { ptr, i64, i64, i32, i32, i32, ptr, %"struct.std::ios_base::_Words", [8 x %"struct.std::ios_base::_Words"], i32, ptr, %"class.std::locale" }
%"struct.std::ios_base::_Words" = type { ptr, i64 }

declare i32 @__gxx_personality_v0(...)

; 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 nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4findERKS4_m(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32), i64 noundef) #1 align 2

; Function Attrs: mustprogress uwtable
declare void @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6substrEmm(ptr dead_on_unwind noalias writable sret(%"class.std::__cxx11::basic_string") align 8, ptr noundef nonnull align 8 dereferenceable(32), i64 noundef, i64 noundef) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32)) #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef zeroext i1 @_ZN12TriangleMesh28_getElementNumberInPlyHeaderERNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES6_Pi(ptr noundef nonnull align 8 dereferenceable(232) %0, ptr noundef nonnull align 8 dereferenceable(32) %1, ptr noundef nonnull align 8 dereferenceable(32) %2, ptr noundef %3) #2 align 2 personality ptr @__gxx_personality_v0 {
  %5 = alloca i1, align 1
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca ptr, align 8
  %9 = alloca ptr, align 8
  %10 = alloca i64, align 8
  %11 = alloca i32, align 4
  %12 = alloca i32, align 4
  %13 = alloca i32, align 4
  %14 = alloca i8, align 1
  %15 = alloca i32, align 4
  %16 = alloca %"class.std::__cxx11::basic_string", align 8
  %17 = alloca %"class.std::__cxx11::basic_istringstream", align 8
  %18 = alloca ptr, align 8
  %19 = alloca i32, align 4
  store ptr %0, ptr %6, align 8, !tbaa !5
  store ptr %1, ptr %7, align 8, !tbaa !5
  store ptr %2, ptr %8, align 8, !tbaa !5
  store ptr %3, ptr %9, align 8, !tbaa !5
  %20 = load ptr, ptr %6, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #4
  %21 = load ptr, ptr %7, align 8, !tbaa !5
  %22 = load ptr, ptr %8, align 8, !tbaa !5
  %23 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4findERKS4_m(ptr noundef nonnull align 8 dereferenceable(32) %21, ptr noundef nonnull align 8 dereferenceable(32) %22, i64 noundef 0) #4
  store i64 %23, ptr %10, align 8, !tbaa !9
  %24 = load i64, ptr %10, align 8, !tbaa !9
  %25 = icmp eq i64 %24, -1
  br i1 %25, label %26, label %27

26:                                               ; preds = %4
  store i1 false, ptr %5, align 1
  store i32 1, ptr %11, align 4
  br label %94

27:                                               ; preds = %4
  call void @llvm.lifetime.start.p0(i64 4, ptr %12) #4
  %28 = load i64, ptr %10, align 8, !tbaa !9
  %29 = trunc i64 %28 to i32
  %30 = load ptr, ptr %8, align 8, !tbaa !5
  %31 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %30) #4
  %32 = trunc i64 %31 to i32
  %33 = add nsw i32 %29, %32
  store i32 %33, ptr %12, align 4, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 4, ptr %13) #4
  store i32 0, ptr %13, align 4, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 1, ptr %14) #4
  store i8 0, ptr %14, align 1, !tbaa !13
  call void @llvm.lifetime.start.p0(i64 4, ptr %15) #4
  %34 = load i32, ptr %12, align 4, !tbaa !11
  store i32 %34, ptr %15, align 4, !tbaa !11
  br label %35

35:                                               ; preds = %54, %27
  %36 = load i32, ptr %15, align 4, !tbaa !11
  %37 = zext i32 %36 to i64
  %38 = load ptr, ptr %7, align 8, !tbaa !5
  %39 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %38) #4
  %40 = icmp ult i64 %37, %39
  br i1 %40, label %42, label %41

41:                                               ; preds = %35
  store i32 2, ptr %11, align 4
  br label %57

42:                                               ; preds = %35
  %43 = load ptr, ptr %7, align 8, !tbaa !5
  %44 = load i32, ptr %15, align 4, !tbaa !11
  %45 = zext i32 %44 to i64
  %46 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %43, i64 noundef %45)
  %47 = load i8, ptr %46, align 1, !tbaa !15
  %48 = sext i8 %47 to i32
  %49 = icmp eq i32 %48, 10
  br i1 %49, label %50, label %53

50:                                               ; preds = %42
  %51 = load i32, ptr %15, align 4, !tbaa !11
  %52 = sub i32 %51, 1
  store i32 %52, ptr %13, align 4, !tbaa !11
  store i8 1, ptr %14, align 1, !tbaa !13
  store i32 2, ptr %11, align 4
  br label %57

53:                                               ; preds = %42
  br label %54

54:                                               ; preds = %53
  %55 = load i32, ptr %15, align 4, !tbaa !11
  %56 = add i32 %55, 1
  store i32 %56, ptr %15, align 4, !tbaa !11
  br label %35, !llvm.loop !16

57:                                               ; preds = %50, %41
  call void @llvm.lifetime.end.p0(i64 4, ptr %15) #4
  br label %58

58:                                               ; preds = %57
  %59 = load i8, ptr %14, align 1, !tbaa !13, !range !18, !noundef !19
  %60 = trunc i8 %59 to i1
  br i1 %60, label %62, label %61

61:                                               ; preds = %58
  store i1 false, ptr %5, align 1
  store i32 1, ptr %11, align 4
  br label %93

62:                                               ; preds = %58
  call void @llvm.lifetime.start.p0(i64 32, ptr %16) #4
  %63 = load ptr, ptr %7, align 8, !tbaa !5
  %64 = load i32, ptr %12, align 4, !tbaa !11
  %65 = sext i32 %64 to i64
  %66 = load i32, ptr %13, align 4, !tbaa !11
  %67 = load i32, ptr %12, align 4, !tbaa !11
  %68 = sub nsw i32 %66, %67
  %69 = add nsw i32 %68, 1
  %70 = sext i32 %69 to i64
  call void @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6substrEmm(ptr dead_on_unwind writable sret(%"class.std::__cxx11::basic_string") align 8 %16, ptr noundef nonnull align 8 dereferenceable(32) %63, i64 noundef %65, i64 noundef %70)
  call void @llvm.lifetime.start.p0(i64 384, ptr %17) #4
  invoke void @_ZNSt7__cxx1119basic_istringstreamIcSt11char_traitsIcESaIcEEC1ERKNS_12basic_stringIcS2_S3_EESt13_Ios_Openmode(ptr noundef nonnull align 8 dereferenceable(120) %17, ptr noundef nonnull align 8 dereferenceable(32) %16, i32 noundef 8)
          to label %71 unwind label %82

71:                                               ; preds = %62
  %72 = load ptr, ptr %9, align 8, !tbaa !5
  %73 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %17, ptr noundef nonnull align 4 dereferenceable(4) %72)
          to label %74 unwind label %86

74:                                               ; preds = %71
  %75 = load ptr, ptr %17, align 8, !tbaa !20
  %76 = getelementptr i8, ptr %75, i64 -24
  %77 = load i64, ptr %76, align 8
  %78 = getelementptr inbounds i8, ptr %17, i64 %77
  %79 = invoke noundef zeroext i1 @_ZNKSt9basic_iosIcSt11char_traitsIcEE4failEv(ptr noundef nonnull align 8 dereferenceable(264) %78)
          to label %80 unwind label %86

80:                                               ; preds = %74
  br i1 %79, label %81, label %90

81:                                               ; preds = %80
  store i1 false, ptr %5, align 1
  store i32 1, ptr %11, align 4
  br label %91

82:                                               ; preds = %62
  %83 = landingpad { ptr, i32 }
          cleanup
  %84 = extractvalue { ptr, i32 } %83, 0
  store ptr %84, ptr %18, align 8
  %85 = extractvalue { ptr, i32 } %83, 1
  store i32 %85, ptr %19, align 4
  br label %92

86:                                               ; preds = %74, %71
  %87 = landingpad { ptr, i32 }
          cleanup
  %88 = extractvalue { ptr, i32 } %87, 0
  store ptr %88, ptr %18, align 8
  %89 = extractvalue { ptr, i32 } %87, 1
  store i32 %89, ptr %19, align 4
  call void @_ZNSt7__cxx1119basic_istringstreamIcSt11char_traitsIcESaIcEED1Ev(ptr noundef nonnull align 8 dereferenceable(120) %17) #4
  br label %92

90:                                               ; preds = %80
  store i1 true, ptr %5, align 1
  store i32 1, ptr %11, align 4
  br label %91

91:                                               ; preds = %90, %81
  call void @_ZNSt7__cxx1119basic_istringstreamIcSt11char_traitsIcESaIcEED1Ev(ptr noundef nonnull align 8 dereferenceable(120) %17) #4
  call void @llvm.lifetime.end.p0(i64 384, ptr %17) #4
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %16) #4
  call void @llvm.lifetime.end.p0(i64 32, ptr %16) #4
  br label %93

92:                                               ; preds = %86, %82
  call void @llvm.lifetime.end.p0(i64 384, ptr %17) #4
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %16) #4
  call void @llvm.lifetime.end.p0(i64 32, ptr %16) #4
  call void @llvm.lifetime.end.p0(i64 1, ptr %14) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %13) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %12) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #4
  br label %96

93:                                               ; preds = %91, %61
  call void @llvm.lifetime.end.p0(i64 1, ptr %14) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %13) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %12) #4
  br label %94

94:                                               ; preds = %93, %26
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #4
  %95 = load i1, ptr %5, align 1
  ret i1 %95

96:                                               ; preds = %92
  %97 = load ptr, ptr %18, align 8
  %98 = load i32, ptr %19, align 4
  %99 = insertvalue { ptr, i32 } poison, ptr %97, 0
  %100 = insertvalue { ptr, i32 } %99, i32 %98, 1
  resume { ptr, i32 } %100
}

; Function Attrs: mustprogress nounwind uwtable
declare noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32), i64 noundef) #1 align 2

; Function Attrs: mustprogress uwtable
declare void @_ZNSt7__cxx1119basic_istringstreamIcSt11char_traitsIcESaIcEEC1ERKNS_12basic_stringIcS2_S3_EESt13_Ios_Openmode(ptr noundef nonnull align 8 dereferenceable(120), ptr noundef nonnull align 8 dereferenceable(32), i32 noundef) unnamed_addr #2 align 2

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 4 dereferenceable(4)) #3

; Function Attrs: mustprogress uwtable
declare noundef zeroext i1 @_ZNKSt9basic_iosIcSt11char_traitsIcEE4failEv(ptr noundef nonnull align 8 dereferenceable(264)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1119basic_istringstreamIcSt11char_traitsIcESaIcEED1Ev(ptr noundef nonnull align 8 dereferenceable(120)) unnamed_addr #1 align 2

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #2 = { 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 #3 = { "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 = !{!"long", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"int", !7, i64 0}
!13 = !{!14, !14, i64 0}
!14 = !{!"bool", !7, i64 0}
!15 = !{!7, !7, i64 0}
!16 = distinct !{!16, !17}
!17 = !{!"llvm.loop.mustprogress"}
!18 = !{i8 0, i8 2}
!19 = !{}
!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"

%"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] }
%"class.std::__cxx11::basic_istringstream" = type { %"class.std::basic_istream.base", %"class.std::__cxx11::basic_stringbuf", %"class.std::basic_ios" }
%"class.std::basic_istream.base" = type { ptr, i64 }
%"class.std::__cxx11::basic_stringbuf" = type { %"class.std::basic_streambuf", i32, %"class.std::__cxx11::basic_string" }
%"class.std::basic_streambuf" = type { ptr, ptr, ptr, ptr, ptr, ptr, ptr, %"class.std::locale" }
%"class.std::locale" = type { ptr }
%"class.std::basic_ios" = type { %"class.std::ios_base", ptr, i8, i8, ptr, ptr, ptr, ptr }
%"class.std::ios_base" = type { ptr, i64, i64, i32, i32, i32, ptr, %"struct.std::ios_base::_Words", [8 x %"struct.std::ios_base::_Words"], i32, ptr, %"class.std::locale" }
%"struct.std::ios_base::_Words" = type { ptr, i64 }

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4findERKS4_m(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32), i64 noundef) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare void @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6substrEmm(ptr dead_on_unwind noalias writable sret(%"class.std::__cxx11::basic_string") align 8, ptr noundef nonnull align 8 dereferenceable(32), i64 noundef, i64 noundef) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef zeroext i1 @_ZN12TriangleMesh28_getElementNumberInPlyHeaderERNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES6_Pi(ptr nocapture noundef nonnull readnone align 8 dereferenceable(232) %0, ptr noundef nonnull align 8 dereferenceable(32) %1, ptr noundef nonnull align 8 dereferenceable(32) %2, ptr noundef %3) local_unnamed_addr #2 align 2 personality ptr @__gxx_personality_v0 {
  %5 = alloca %"class.std::__cxx11::basic_string", align 8
  %6 = alloca %"class.std::__cxx11::basic_istringstream", align 8
  %7 = tail call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4findERKS4_m(ptr noundef nonnull align 8 dereferenceable(32) %1, ptr noundef nonnull align 8 dereferenceable(32) %2, i64 noundef 0) #4
  %8 = icmp eq i64 %7, -1
  br i1 %8, label %.loopexit, label %9

9:                                                ; preds = %4
  %10 = trunc i64 %7 to i32
  %11 = tail call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %2) #4
  %12 = trunc i64 %11 to i32
  %13 = add nsw i32 %12, %10
  %14 = zext i32 %13 to i64
  %15 = tail call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %1) #4
  %16 = icmp ugt i64 %15, %14
  br i1 %16, label %.lr.ph, label %.loopexit

.lr.ph:                                           ; preds = %9, %21
  %17 = phi i64 [ %23, %21 ], [ %14, %9 ]
  %.02232 = phi i32 [ %22, %21 ], [ %13, %9 ]
  %18 = tail call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef %17)
  %19 = load i8, ptr %18, align 1, !tbaa !5
  %20 = icmp eq i8 %19, 10
  br i1 %20, label %26, label %21

21:                                               ; preds = %.lr.ph
  %22 = add i32 %.02232, 1
  %23 = zext i32 %22 to i64
  %24 = tail call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %1) #4
  %25 = icmp ugt i64 %24, %23
  br i1 %25, label %.lr.ph, label %.loopexit, !llvm.loop !8

26:                                               ; preds = %.lr.ph
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %5) #4
  %27 = sext i32 %13 to i64
  %28 = sub i32 %.02232, %13
  %29 = sext i32 %28 to i64
  call void @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6substrEmm(ptr dead_on_unwind nonnull writable sret(%"class.std::__cxx11::basic_string") align 8 %5, ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef %27, i64 noundef %29)
  call void @llvm.lifetime.start.p0(i64 384, ptr nonnull %6) #4
  invoke void @_ZNSt7__cxx1119basic_istringstreamIcSt11char_traitsIcESaIcEEC1ERKNS_12basic_stringIcS2_S3_EESt13_Ios_Openmode(ptr noundef nonnull align 8 dereferenceable(120) %6, ptr noundef nonnull align 8 dereferenceable(32) %5, i32 noundef 8)
          to label %30 unwind label %38

30:                                               ; preds = %26
  %31 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %6, ptr noundef nonnull align 4 dereferenceable(4) %3)
          to label %32 unwind label %40

32:                                               ; preds = %30
  %33 = load ptr, ptr %6, align 8, !tbaa !10
  %34 = getelementptr i8, ptr %33, i64 -24
  %35 = load i64, ptr %34, align 8
  %36 = getelementptr inbounds i8, ptr %6, i64 %35
  %37 = invoke noundef zeroext i1 @_ZNKSt9basic_iosIcSt11char_traitsIcEE4failEv(ptr noundef nonnull align 8 dereferenceable(264) %36)
          to label %42 unwind label %40

38:                                               ; preds = %26
  %39 = landingpad { ptr, i32 }
          cleanup
  br label %43

40:                                               ; preds = %32, %30
  %41 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt7__cxx1119basic_istringstreamIcSt11char_traitsIcESaIcEED1Ev(ptr noundef nonnull align 8 dereferenceable(120) %6) #4
  br label %43

42:                                               ; preds = %32
  %.025 = xor i1 %37, true
  call void @_ZNSt7__cxx1119basic_istringstreamIcSt11char_traitsIcESaIcEED1Ev(ptr noundef nonnull align 8 dereferenceable(120) %6) #4
  call void @llvm.lifetime.end.p0(i64 384, ptr nonnull %6) #4
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %5) #4
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %5) #4
  br label %.loopexit

43:                                               ; preds = %40, %38
  %.pn = phi { ptr, i32 } [ %41, %40 ], [ %39, %38 ]
  call void @llvm.lifetime.end.p0(i64 384, ptr nonnull %6) #4
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %5) #4
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %5) #4
  resume { ptr, i32 } %.pn

.loopexit:                                        ; preds = %21, %9, %42, %4
  %.2 = phi i1 [ false, %4 ], [ %.025, %42 ], [ false, %9 ], [ false, %21 ]
  ret i1 %.2
}

; Function Attrs: mustprogress nounwind uwtable
declare noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32), i64 noundef) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare void @_ZNSt7__cxx1119basic_istringstreamIcSt11char_traitsIcESaIcEEC1ERKNS_12basic_stringIcS2_S3_EESt13_Ios_Openmode(ptr noundef nonnull align 8 dereferenceable(120), ptr noundef nonnull align 8 dereferenceable(32), i32 noundef) unnamed_addr #2 align 2

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #3

; Function Attrs: mustprogress uwtable
declare noundef zeroext i1 @_ZNKSt9basic_iosIcSt11char_traitsIcEE4failEv(ptr noundef nonnull align 8 dereferenceable(264)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1119basic_istringstreamIcSt11char_traitsIcESaIcEED1Ev(ptr noundef nonnull align 8 dereferenceable(120)) unnamed_addr #1 align 2

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #2 = { 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 #3 = { "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 = !{!"omnipotent char", !7, i64 0}
!7 = !{!"Simple C++ TBAA"}
!8 = distinct !{!8, !9}
!9 = !{!"llvm.loop.mustprogress"}
!10 = !{!11, !11, i64 0}
!11 = !{!"vtable pointer", !7, i64 0}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,ReassociatePass,SROAPass,SimplifyCFGPass,TailCallElimPass