; LLVM IR from EyalAr/lwip :: src/lib/gif (gifalloc)

; 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.ColorMapObject = type { i32, i32, i8, ptr }

; Function Attrs: nounwind uwtable
declare dso_local i32 @GifBitSize(i32 noundef) #0

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nounwind uwtable
define dso_local ptr @GifMakeMapObject(i32 noundef %0, ptr noundef %1) #0 {
  %3 = alloca ptr, align 8
  %4 = alloca i32, align 4
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca i32, align 4
  store i32 %0, ptr %4, align 4, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #6
  %8 = load i32, ptr %4, align 4, !tbaa !5
  %9 = load i32, ptr %4, align 4, !tbaa !5
  %10 = call i32 @GifBitSize(i32 noundef %9)
  %11 = shl i32 1, %10
  %12 = icmp ne i32 %8, %11
  br i1 %12, label %13, label %14

13:                                               ; preds = %2
  store ptr null, ptr %3, align 8
  store i32 1, ptr %7, align 4
  br label %53

14:                                               ; preds = %2
  %15 = call noalias ptr @malloc(i64 noundef 24) #7
  store ptr %15, ptr %6, align 8, !tbaa !9
  %16 = load ptr, ptr %6, align 8, !tbaa !9
  %17 = icmp eq ptr %16, null
  br i1 %17, label %18, label %19

18:                                               ; preds = %14
  store ptr null, ptr %3, align 8
  store i32 1, ptr %7, align 4
  br label %53

19:                                               ; preds = %14
  %20 = load i32, ptr %4, align 4, !tbaa !5
  %21 = sext i32 %20 to i64
  %22 = call noalias ptr @calloc(i64 noundef %21, i64 noundef 3) #8
  %23 = load ptr, ptr %6, align 8, !tbaa !9
  %24 = getelementptr inbounds %struct.ColorMapObject, ptr %23, i32 0, i32 3
  store ptr %22, ptr %24, align 8, !tbaa !11
  %25 = load ptr, ptr %6, align 8, !tbaa !9
  %26 = getelementptr inbounds %struct.ColorMapObject, ptr %25, i32 0, i32 3
  %27 = load ptr, ptr %26, align 8, !tbaa !11
  %28 = icmp eq ptr %27, null
  br i1 %28, label %29, label %31

29:                                               ; preds = %19
  %30 = load ptr, ptr %6, align 8, !tbaa !9
  call void @free(ptr noundef %30) #6
  store ptr null, ptr %3, align 8
  store i32 1, ptr %7, align 4
  br label %53

31:                                               ; preds = %19
  %32 = load i32, ptr %4, align 4, !tbaa !5
  %33 = load ptr, ptr %6, align 8, !tbaa !9
  %34 = getelementptr inbounds %struct.ColorMapObject, ptr %33, i32 0, i32 0
  store i32 %32, ptr %34, align 8, !tbaa !14
  %35 = load i32, ptr %4, align 4, !tbaa !5
  %36 = call i32 @GifBitSize(i32 noundef %35)
  %37 = load ptr, ptr %6, align 8, !tbaa !9
  %38 = getelementptr inbounds %struct.ColorMapObject, ptr %37, i32 0, i32 1
  store i32 %36, ptr %38, align 4, !tbaa !15
  %39 = load ptr, ptr %6, align 8, !tbaa !9
  %40 = getelementptr inbounds %struct.ColorMapObject, ptr %39, i32 0, i32 2
  store i8 0, ptr %40, align 8, !tbaa !16
  %41 = load ptr, ptr %5, align 8, !tbaa !9
  %42 = icmp ne ptr %41, null
  br i1 %42, label %43, label %51

43:                                               ; preds = %31
  %44 = load ptr, ptr %6, align 8, !tbaa !9
  %45 = getelementptr inbounds %struct.ColorMapObject, ptr %44, i32 0, i32 3
  %46 = load ptr, ptr %45, align 8, !tbaa !11
  %47 = load ptr, ptr %5, align 8, !tbaa !9
  %48 = load i32, ptr %4, align 4, !tbaa !5
  %49 = sext i32 %48 to i64
  %50 = mul i64 %49, 3
  call void @llvm.memcpy.p0.p0.i64(ptr align 1 %46, ptr align 1 %47, i64 %50, i1 false)
  br label %51

51:                                               ; preds = %43, %31
  %52 = load ptr, ptr %6, align 8, !tbaa !9
  store ptr %52, ptr %3, align 8
  store i32 1, ptr %7, align 4
  br label %53

53:                                               ; preds = %51, %29, %18, %13
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #6
  %54 = load ptr, ptr %3, align 8
  ret ptr %54
}

; Function Attrs: nounwind allocsize(0)
declare noalias ptr @malloc(i64 noundef) #2

; Function Attrs: nounwind allocsize(0,1)
declare noalias ptr @calloc(i64 noundef, i64 noundef) #3

; Function Attrs: nounwind
declare void @free(ptr noundef) #4

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #5

attributes #0 = { 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 #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { nounwind allocsize(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 allocsize(0,1) "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 #4 = { nounwind "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 #5 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #6 = { nounwind }
attributes #7 = { nounwind allocsize(0) }
attributes #8 = { nounwind allocsize(0,1) }

!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/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"any pointer", !7, i64 0}
!11 = !{!12, !10, i64 16}
!12 = !{!"ColorMapObject", !6, i64 0, !6, i64 4, !13, i64 8, !10, i64 16}
!13 = !{!"_Bool", !7, i64 0}
!14 = !{!12, !6, i64 0}
!15 = !{!12, !6, i64 4}
!16 = !{!12, !13, i64 8}


; 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: nounwind uwtable
declare dso_local i32 @GifBitSize(i32 noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local noalias noundef ptr @GifMakeMapObject(i32 noundef %0, ptr noundef readonly %1) local_unnamed_addr #0 {
  %3 = tail call i32 @GifBitSize(i32 noundef %0)
  %4 = shl nuw i32 1, %3
  %.not = icmp eq i32 %4, %0
  br i1 %.not, label %5, label %20

5:                                                ; preds = %2
  %6 = tail call noalias dereferenceable_or_null(24) ptr @malloc(i64 noundef 24) #5
  %7 = icmp eq ptr %6, null
  br i1 %7, label %20, label %8

8:                                                ; preds = %5
  %9 = sext i32 %0 to i64
  %10 = tail call noalias ptr @calloc(i64 noundef %9, i64 noundef 3) #6
  %11 = getelementptr inbounds i8, ptr %6, i64 16
  store ptr %10, ptr %11, align 8, !tbaa !5
  %12 = icmp eq ptr %10, null
  br i1 %12, label %13, label %14

13:                                               ; preds = %8
  tail call void @free(ptr noundef nonnull %6) #7
  br label %20

14:                                               ; preds = %8
  store i32 %0, ptr %6, align 8, !tbaa !12
  %15 = tail call i32 @GifBitSize(i32 noundef %0)
  %16 = getelementptr inbounds i8, ptr %6, i64 4
  store i32 %15, ptr %16, align 4, !tbaa !13
  %17 = getelementptr inbounds i8, ptr %6, i64 8
  store i8 0, ptr %17, align 8, !tbaa !14
  %.not20 = icmp eq ptr %1, null
  br i1 %.not20, label %20, label %18

18:                                               ; preds = %14
  %19 = mul nsw i64 %9, 3
  tail call void @llvm.memcpy.p0.p0.i64(ptr nonnull align 1 %10, ptr nonnull align 1 %1, i64 %19, i1 false)
  br label %20

20:                                               ; preds = %14, %18, %5, %2, %13
  %.0 = phi ptr [ null, %13 ], [ null, %2 ], [ null, %5 ], [ %6, %18 ], [ %6, %14 ]
  ret ptr %.0
}

; Function Attrs: mustprogress nofree nounwind willreturn allockind("alloc,uninitialized") allocsize(0) memory(inaccessiblemem: readwrite)
declare noalias noundef ptr @malloc(i64 noundef) local_unnamed_addr #1

; Function Attrs: mustprogress nofree nounwind willreturn allockind("alloc,zeroed") allocsize(0,1) memory(inaccessiblemem: readwrite)
declare noalias noundef ptr @calloc(i64 noundef, i64 noundef) local_unnamed_addr #2

; Function Attrs: mustprogress nounwind willreturn allockind("free") memory(argmem: readwrite, inaccessiblemem: readwrite)
declare void @free(ptr allocptr nocapture noundef) local_unnamed_addr #3

; Function Attrs: mustprogress nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #4

attributes #0 = { 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 #1 = { mustprogress nofree nounwind willreturn allockind("alloc,uninitialized") allocsize(0) memory(inaccessiblemem: readwrite) "alloc-family"="malloc" "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 nofree nounwind willreturn allockind("alloc,zeroed") allocsize(0,1) memory(inaccessiblemem: readwrite) "alloc-family"="malloc" "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 = { mustprogress nounwind willreturn allockind("free") memory(argmem: readwrite, inaccessiblemem: readwrite) "alloc-family"="malloc" "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 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #5 = { nounwind allocsize(0) }
attributes #6 = { nounwind allocsize(0,1) }
attributes #7 = { 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, !11, i64 16}
!6 = !{!"ColorMapObject", !7, i64 0, !7, i64 4, !10, i64 8, !11, i64 16}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"_Bool", !8, i64 0}
!11 = !{!"any pointer", !8, i64 0}
!12 = !{!6, !7, i64 0}
!13 = !{!6, !7, i64 4}
!14 = !{!6, !10, i64 8}


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