; LLVM IR from bitbank2/PNGdec :: examples/png_comparison (lodepng)

; 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.__gnu_cxx::__normal_iterator.3" = type { ptr }
%"class.__gnu_cxx::__normal_iterator" = type { ptr }
%struct.LodePNGState = type { %struct.LodePNGDecoderSettings, %struct.LodePNGEncoderSettings, %struct.LodePNGColorMode, %struct.LodePNGInfo, i32 }
%struct.LodePNGDecoderSettings = type { %struct.LodePNGDecompressSettings, i32, i32, i32, i32, i32, i32, i64, i64 }
%struct.LodePNGDecompressSettings = type { i32, i32, i64, ptr, ptr, ptr }
%struct.LodePNGEncoderSettings = type { %struct.LodePNGCompressSettings, i32, i32, i32, ptr, i32, i32, i32 }
%struct.LodePNGCompressSettings = type { i32, i32, i32, i32, i32, i32, ptr, ptr, ptr }
%struct.LodePNGColorMode = type { i32, i32, ptr, i64, i32, i32, i32, i32 }
%struct.LodePNGInfo = type { i32, i32, i32, %struct.LodePNGColorMode, i32, i32, i32, i32, i64, ptr, ptr, i64, ptr, ptr, ptr, ptr, i32, %struct.LodePNGTime, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, ptr, ptr, i32, i32, i32, i32, i32, i32, [3 x ptr], [3 x i64] }
%struct.LodePNGTime = type { i32, i32, i32, i32, i32, i32 }

; 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 hidden void @_ZL12lodepng_freePv(ptr noundef) #1

; Function Attrs: mustprogress uwtable
declare dso_local noundef i64 @_Z20lodepng_get_raw_sizejjPK16LodePNGColorMode(i32 noundef, i32 noundef, ptr noundef) #2

; Function Attrs: mustprogress uwtable
declare dso_local noundef i32 @_Z14lodepng_decodePPhPjS1_P12LodePNGStatePKhm(ptr noundef, ptr noundef, ptr noundef, ptr noundef, ptr noundef, i64 noundef) #2

; Function Attrs: mustprogress uwtable
declare dso_local ptr @_ZNSt6vectorIhSaIhEE6insertIPhvEEN9__gnu_cxx17__normal_iteratorIS3_S1_EENS5_IPKhS1_EET_SA_(ptr noundef nonnull align 8 dereferenceable(24), ptr, ptr noundef, ptr noundef) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorIhSaIhEE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN9__gnu_cxx17__normal_iteratorIPKhSt6vectorIhSaIhEEEC2IPhvEERKNS0_IT_S5_EE(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_ZN7lodepng6decodeERSt6vectorIhSaIhEERjS4_RNS_5StateEPKhm(ptr noundef nonnull align 8 dereferenceable(24) %0, ptr noundef nonnull align 4 dereferenceable(4) %1, ptr noundef nonnull align 4 dereferenceable(4) %2, ptr noundef nonnull align 8 dereferenceable(544) %3, ptr noundef %4, i64 noundef %5) #2 {
  %7 = alloca ptr, align 8
  %8 = alloca ptr, align 8
  %9 = alloca ptr, align 8
  %10 = alloca ptr, align 8
  %11 = alloca ptr, align 8
  %12 = alloca i64, align 8
  %13 = alloca ptr, align 8
  %14 = alloca i32, align 4
  %15 = alloca i64, align 8
  %16 = alloca %"class.__gnu_cxx::__normal_iterator.3", align 8
  %17 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %18 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  store ptr %0, ptr %7, align 8, !tbaa !5
  store ptr %1, ptr %8, align 8, !tbaa !5
  store ptr %2, ptr %9, align 8, !tbaa !5
  store ptr %3, ptr %10, align 8, !tbaa !5
  store ptr %4, ptr %11, align 8, !tbaa !5
  store i64 %5, ptr %12, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %13) #3
  store ptr null, ptr %13, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %14) #3
  %19 = load ptr, ptr %8, align 8, !tbaa !5
  %20 = load ptr, ptr %9, align 8, !tbaa !5
  %21 = load ptr, ptr %10, align 8, !tbaa !5
  %22 = load ptr, ptr %11, align 8, !tbaa !5
  %23 = load i64, ptr %12, align 8, !tbaa !9
  %24 = call noundef i32 @_Z14lodepng_decodePPhPjS1_P12LodePNGStatePKhm(ptr noundef %13, ptr noundef %19, ptr noundef %20, ptr noundef %21, ptr noundef %22, i64 noundef %23)
  store i32 %24, ptr %14, align 4, !tbaa !11
  %25 = load ptr, ptr %13, align 8, !tbaa !5
  %26 = icmp ne ptr %25, null
  br i1 %26, label %27, label %50

27:                                               ; preds = %6
  %28 = load i32, ptr %14, align 4, !tbaa !11
  %29 = icmp ne i32 %28, 0
  br i1 %29, label %50, label %30

30:                                               ; preds = %27
  call void @llvm.lifetime.start.p0(i64 8, ptr %15) #3
  %31 = load ptr, ptr %8, align 8, !tbaa !5
  %32 = load i32, ptr %31, align 4, !tbaa !11
  %33 = load ptr, ptr %9, align 8, !tbaa !5
  %34 = load i32, ptr %33, align 4, !tbaa !11
  %35 = load ptr, ptr %10, align 8, !tbaa !5
  %36 = getelementptr inbounds %struct.LodePNGState, ptr %35, i32 0, i32 2
  %37 = call noundef i64 @_Z20lodepng_get_raw_sizejjPK16LodePNGColorMode(i32 noundef %32, i32 noundef %34, ptr noundef %36)
  store i64 %37, ptr %15, align 8, !tbaa !9
  %38 = load ptr, ptr %7, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %17) #3
  %39 = load ptr, ptr %7, align 8, !tbaa !5
  %40 = call ptr @_ZNSt6vectorIhSaIhEE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %39) #3
  %41 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %17, i32 0, i32 0
  store ptr %40, ptr %41, align 8
  call void @_ZN9__gnu_cxx17__normal_iteratorIPKhSt6vectorIhSaIhEEEC2IPhvEERKNS0_IT_S5_EE(ptr noundef nonnull align 8 dereferenceable(8) %16, ptr noundef nonnull align 8 dereferenceable(8) %17) #3
  %42 = load ptr, ptr %13, align 8, !tbaa !5
  %43 = load ptr, ptr %13, align 8, !tbaa !5
  %44 = load i64, ptr %15, align 8, !tbaa !9
  %45 = getelementptr inbounds i8, ptr %43, i64 %44
  %46 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator.3", ptr %16, i32 0, i32 0
  %47 = load ptr, ptr %46, align 8
  %48 = call ptr @_ZNSt6vectorIhSaIhEE6insertIPhvEEN9__gnu_cxx17__normal_iteratorIS3_S1_EENS5_IPKhS1_EET_SA_(ptr noundef nonnull align 8 dereferenceable(24) %38, ptr %47, ptr noundef %42, ptr noundef %45)
  %49 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %18, i32 0, i32 0
  store ptr %48, ptr %49, align 8
  call void @llvm.lifetime.end.p0(i64 8, ptr %17) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %15) #3
  br label %50

50:                                               ; preds = %30, %27, %6
  %51 = load ptr, ptr %13, align 8, !tbaa !5
  call void @_ZL12lodepng_freePv(ptr noundef %51)
  %52 = load i32, ptr %14, align 4, !tbaa !11
  call void @llvm.lifetime.end.p0(i64 4, ptr %14) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %13) #3
  ret i32 %52
}

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 = !{!"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}


; 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.__gnu_cxx::__normal_iterator.3" = type { ptr }
%"class.__gnu_cxx::__normal_iterator" = type { ptr }

; 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 hidden void @_ZL12lodepng_freePv(ptr noundef) local_unnamed_addr #1

; Function Attrs: mustprogress uwtable
declare dso_local noundef i64 @_Z20lodepng_get_raw_sizejjPK16LodePNGColorMode(i32 noundef, i32 noundef, ptr noundef) local_unnamed_addr #2

; Function Attrs: mustprogress uwtable
declare dso_local noundef i32 @_Z14lodepng_decodePPhPjS1_P12LodePNGStatePKhm(ptr noundef, ptr noundef, ptr noundef, ptr noundef, ptr noundef, i64 noundef) local_unnamed_addr #2

; Function Attrs: mustprogress uwtable
declare dso_local ptr @_ZNSt6vectorIhSaIhEE6insertIPhvEEN9__gnu_cxx17__normal_iteratorIS3_S1_EENS5_IPKhS1_EET_SA_(ptr noundef nonnull align 8 dereferenceable(24), ptr, ptr noundef, ptr noundef) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorIhSaIhEE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN9__gnu_cxx17__normal_iteratorIPKhSt6vectorIhSaIhEEEC2IPhvEERKNS0_IT_S5_EE(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_ZN7lodepng6decodeERSt6vectorIhSaIhEERjS4_RNS_5StateEPKhm(ptr noundef nonnull align 8 dereferenceable(24) %0, ptr noundef nonnull align 4 dereferenceable(4) %1, ptr noundef nonnull align 4 dereferenceable(4) %2, ptr noundef nonnull align 8 dereferenceable(544) %3, ptr noundef %4, i64 noundef %5) local_unnamed_addr #2 {
  %7 = alloca ptr, align 8
  %8 = alloca %"class.__gnu_cxx::__normal_iterator.3", align 8
  %9 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %7) #3
  store ptr null, ptr %7, align 8, !tbaa !5
  %10 = call noundef i32 @_Z14lodepng_decodePPhPjS1_P12LodePNGStatePKhm(ptr noundef nonnull %7, ptr noundef nonnull %1, ptr noundef nonnull %2, ptr noundef nonnull %3, ptr noundef %4, i64 noundef %5)
  %11 = load ptr, ptr %7, align 8, !tbaa !5
  %12 = icmp eq ptr %11, null
  %13 = icmp ne i32 %10, 0
  %or.cond = or i1 %13, %12
  br i1 %or.cond, label %24, label %14

14:                                               ; preds = %6
  %15 = load i32, ptr %1, align 4, !tbaa !9
  %16 = load i32, ptr %2, align 4, !tbaa !9
  %17 = getelementptr inbounds i8, ptr %3, i64 168
  %18 = call noundef i64 @_Z20lodepng_get_raw_sizejjPK16LodePNGColorMode(i32 noundef %15, i32 noundef %16, ptr noundef nonnull %17)
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %9) #3
  %19 = call ptr @_ZNSt6vectorIhSaIhEE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %0) #3
  store ptr %19, ptr %9, align 8
  call void @_ZN9__gnu_cxx17__normal_iteratorIPKhSt6vectorIhSaIhEEEC2IPhvEERKNS0_IT_S5_EE(ptr noundef nonnull align 8 dereferenceable(8) %8, ptr noundef nonnull align 8 dereferenceable(8) %9) #3
  %20 = load ptr, ptr %7, align 8, !tbaa !5
  %21 = getelementptr inbounds i8, ptr %20, i64 %18
  %22 = load ptr, ptr %8, align 8
  %23 = call ptr @_ZNSt6vectorIhSaIhEE6insertIPhvEEN9__gnu_cxx17__normal_iteratorIS3_S1_EENS5_IPKhS1_EET_SA_(ptr noundef nonnull align 8 dereferenceable(24) %0, ptr %22, ptr noundef %20, ptr noundef %21)
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %9) #3
  %.pre = load ptr, ptr %7, align 8, !tbaa !5
  br label %24

24:                                               ; preds = %14, %6
  %25 = phi ptr [ %.pre, %14 ], [ %11, %6 ]
  call void @_ZL12lodepng_freePv(ptr noundef %25)
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %7) #3
  ret i32 %10
}

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 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,ReassociatePass,SROAPass,SimplifyCFGPass