; LLVM IR from paroj/gltut :: glsdk/glutil/source (Shader)

; 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::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<const char *, std::allocator<const char *>>::_Vector_impl" }
%"struct.std::_Vector_base<const char *, std::allocator<const char *>>::_Vector_impl" = type { %"struct.std::_Vector_base<const char *, std::allocator<const char *>>::_Vector_impl_data" }
%"struct.std::_Vector_base<const char *, std::allocator<const char *>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.refs::array_ref" = type { ptr, i64 }

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

declare i32 @__gxx_personality_v0(...)

; 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 dso_local void @_ZNSt6vectorIPKcSaIS1_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIPKcSaIS1_EE7reserveEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(32) ptr @_ZNKSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIPKcSaIS1_EE9push_backEOS1_(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 8 dereferenceable(8)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare noundef ptr @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE5c_strEv(ptr noundef nonnull align 8 dereferenceable(32)) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIPKcSaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef i32 @_ZN6glutil20MakeSeparableProgramEjN4refs9array_refIPKcEE(i32 noundef, ptr, i64) #2

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_ZN6glutil20MakeSeparableProgramEjRKSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS6_EE(i32 noundef %0, ptr noundef nonnull align 8 dereferenceable(24) %1) #2 personality ptr @__gxx_personality_v0 {
  %3 = alloca i32, align 4
  %4 = alloca ptr, align 8
  %5 = alloca %"class.std::vector", align 8
  %6 = alloca ptr, align 8
  %7 = alloca i32, align 4
  %8 = alloca i64, align 8
  %9 = alloca ptr, align 8
  %10 = alloca %"class.refs::array_ref", align 8
  store i32 %0, ptr %3, align 4, !tbaa !5
  store ptr %1, ptr %4, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 24, ptr %5) #3
  call void @_ZNSt6vectorIPKcSaIS1_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24) %5) #3
  %11 = load ptr, ptr %4, align 8, !tbaa !9
  %12 = call noundef i64 @_ZNKSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %11) #3
  invoke void @_ZNSt6vectorIPKcSaIS1_EE7reserveEm(ptr noundef nonnull align 8 dereferenceable(24) %5, i64 noundef %12)
          to label %13 unwind label %20

13:                                               ; preds = %2
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #3
  store i64 0, ptr %8, align 8, !tbaa !11
  br label %14

14:                                               ; preds = %30, %13
  %15 = load i64, ptr %8, align 8, !tbaa !11
  %16 = load ptr, ptr %4, align 8, !tbaa !9
  %17 = call noundef i64 @_ZNKSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %16) #3
  %18 = icmp ult i64 %15, %17
  br i1 %18, label %24, label %19

19:                                               ; preds = %14
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #3
  br label %37

20:                                               ; preds = %39, %37, %2
  %21 = landingpad { ptr, i32 }
          cleanup
  %22 = extractvalue { ptr, i32 } %21, 0
  store ptr %22, ptr %6, align 8
  %23 = extractvalue { ptr, i32 } %21, 1
  store i32 %23, ptr %7, align 4
  br label %46

24:                                               ; preds = %14
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #3
  %25 = load ptr, ptr %4, align 8, !tbaa !9
  %26 = load i64, ptr %8, align 8, !tbaa !11
  %27 = call noundef nonnull align 8 dereferenceable(32) ptr @_ZNKSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %25, i64 noundef %26) #3
  %28 = call noundef ptr @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE5c_strEv(ptr noundef nonnull align 8 dereferenceable(32) %27) #3
  store ptr %28, ptr %9, align 8, !tbaa !9
  invoke void @_ZNSt6vectorIPKcSaIS1_EE9push_backEOS1_(ptr noundef nonnull align 8 dereferenceable(24) %5, ptr noundef nonnull align 8 dereferenceable(8) %9)
          to label %29 unwind label %33

29:                                               ; preds = %24
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #3
  br label %30

30:                                               ; preds = %29
  %31 = load i64, ptr %8, align 8, !tbaa !11
  %32 = add i64 %31, 1
  store i64 %32, ptr %8, align 8, !tbaa !11
  br label %14, !llvm.loop !13

33:                                               ; preds = %24
  %34 = landingpad { ptr, i32 }
          cleanup
  %35 = extractvalue { ptr, i32 } %34, 0
  store ptr %35, ptr %6, align 8
  %36 = extractvalue { ptr, i32 } %34, 1
  store i32 %36, ptr %7, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #3
  br label %46

37:                                               ; preds = %19
  %38 = load i32, ptr %3, align 4, !tbaa !5
  invoke void @_ZN4refs9array_refIPKcEC2ERKSt6vectorIS2_SaIS2_EE(ptr noundef nonnull align 8 dereferenceable(16) %10, ptr noundef nonnull align 8 dereferenceable(24) %5)
          to label %39 unwind label %20

39:                                               ; preds = %37
  %40 = getelementptr inbounds { ptr, i64 }, ptr %10, i32 0, i32 0
  %41 = load ptr, ptr %40, align 8
  %42 = getelementptr inbounds { ptr, i64 }, ptr %10, i32 0, i32 1
  %43 = load i64, ptr %42, align 8
  %44 = invoke noundef i32 @_ZN6glutil20MakeSeparableProgramEjN4refs9array_refIPKcEE(i32 noundef %38, ptr %41, i64 %43)
          to label %45 unwind label %20

45:                                               ; preds = %39
  call void @_ZNSt6vectorIPKcSaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %5) #3
  call void @llvm.lifetime.end.p0(i64 24, ptr %5) #3
  ret i32 %44

46:                                               ; preds = %33, %20
  call void @_ZNSt6vectorIPKcSaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %5) #3
  call void @llvm.lifetime.end.p0(i64 24, ptr %5) #3
  br label %47

47:                                               ; preds = %46
  %48 = load ptr, ptr %6, align 8
  %49 = load i32, ptr %7, align 4
  %50 = insertvalue { ptr, i32 } poison, ptr %48, 0
  %51 = insertvalue { ptr, i32 } %50, i32 %49, 1
  resume { ptr, i32 } %51
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN4refs9array_refIPKcEC2ERKSt6vectorIS2_SaIS2_EE(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(24)) 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 = { 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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"any pointer", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"long", !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"

%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<const char *, std::allocator<const char *>>::_Vector_impl" }
%"struct.std::_Vector_base<const char *, std::allocator<const char *>>::_Vector_impl" = type { %"struct.std::_Vector_base<const char *, std::allocator<const char *>>::_Vector_impl_data" }
%"struct.std::_Vector_base<const char *, std::allocator<const char *>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.refs::array_ref" = type { ptr, i64 }

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

declare i32 @__gxx_personality_v0(...)

; 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 dso_local void @_ZNSt6vectorIPKcSaIS1_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIPKcSaIS1_EE7reserveEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(32) ptr @_ZNKSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIPKcSaIS1_EE9push_backEOS1_(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare noundef ptr @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE5c_strEv(ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIPKcSaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef i32 @_ZN6glutil20MakeSeparableProgramEjN4refs9array_refIPKcEE(i32 noundef, ptr, i64) local_unnamed_addr #2

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_ZN6glutil20MakeSeparableProgramEjRKSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS6_EE(i32 noundef %0, ptr noundef nonnull align 8 dereferenceable(24) %1) local_unnamed_addr #2 personality ptr @__gxx_personality_v0 {
  %3 = alloca %"class.std::vector", align 8
  %4 = alloca ptr, align 8
  %5 = alloca %"class.refs::array_ref", align 8
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %3) #3
  call void @_ZNSt6vectorIPKcSaIS1_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #3
  %6 = call noundef i64 @_ZNKSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %1) #3
  invoke void @_ZNSt6vectorIPKcSaIS1_EE7reserveEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %6)
          to label %.preheader unwind label %12

.preheader:                                       ; preds = %2
  %7 = call noundef i64 @_ZNKSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %1) #3
  %.not = icmp eq i64 %7, 0
  br i1 %.not, label %._crit_edge, label %.lr.ph

._crit_edge:                                      ; preds = %16, %.preheader
  call void @_ZN4refs9array_refIPKcEC2ERKSt6vectorIS2_SaIS2_EE(ptr noundef nonnull align 8 dereferenceable(16) %5, ptr noundef nonnull align 8 dereferenceable(24) %3)
  %8 = load ptr, ptr %5, align 8
  %9 = getelementptr inbounds i8, ptr %5, i64 8
  %10 = load i64, ptr %9, align 8
  %11 = invoke noundef i32 @_ZN6glutil20MakeSeparableProgramEjN4refs9array_refIPKcEE(i32 noundef %0, ptr %8, i64 %10)
          to label %22 unwind label %12

12:                                               ; preds = %._crit_edge, %2
  %13 = landingpad { ptr, i32 }
          cleanup
  br label %23

.lr.ph:                                           ; preds = %.preheader, %16
  %.011 = phi i64 [ %17, %16 ], [ 0, %.preheader ]
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #3
  %14 = call noundef nonnull align 8 dereferenceable(32) ptr @_ZNKSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %1, i64 noundef %.011) #3
  %15 = call noundef ptr @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE5c_strEv(ptr noundef nonnull align 8 dereferenceable(32) %14) #3
  store ptr %15, ptr %4, align 8, !tbaa !5
  invoke void @_ZNSt6vectorIPKcSaIS1_EE9push_backEOS1_(ptr noundef nonnull align 8 dereferenceable(24) %3, ptr noundef nonnull align 8 dereferenceable(8) %4)
          to label %16 unwind label %20

16:                                               ; preds = %.lr.ph
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #3
  %17 = add nuw i64 %.011, 1
  %18 = call noundef i64 @_ZNKSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS5_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %1) #3
  %19 = icmp ult i64 %17, %18
  br i1 %19, label %.lr.ph, label %._crit_edge, !llvm.loop !9

20:                                               ; preds = %.lr.ph
  %21 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #3
  br label %23

22:                                               ; preds = %._crit_edge
  call void @_ZNSt6vectorIPKcSaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #3
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %3) #3
  ret i32 %11

23:                                               ; preds = %20, %12
  %.pn = phi { ptr, i32 } [ %21, %20 ], [ %13, %12 ]
  call void @_ZNSt6vectorIPKcSaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #3
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %3) #3
  resume { ptr, i32 } %.pn
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN4refs9array_refIPKcEC2ERKSt6vectorIS2_SaIS2_EE(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(24)) 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 = { 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 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,SROAPass,SimplifyCFGPass