; LLVM IR from alibaba/GCanvas :: core/android/png/LodePngCoder.ll (ZN7gcanvas12LodePngCoder6EncodeEPKcPKhjj)

; 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"

; 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 uwtable
define dso_local noundef i32 @_ZN7gcanvas12LodePngCoder6EncodeEPKcPKhjj(ptr noundef nonnull align 8 dereferenceable(8) %0, ptr noundef %1, ptr noundef %2, i32 noundef %3, i32 noundef %4) unnamed_addr #1 align 2 {
  %6 = alloca i32, align 4
  %7 = alloca ptr, align 8
  %8 = alloca ptr, align 8
  %9 = alloca ptr, align 8
  %10 = alloca i32, align 4
  %11 = alloca i32, align 4
  %12 = alloca i32, align 4
  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 i32 %3, ptr %10, align 4, !tbaa !9
  store i32 %4, ptr %11, align 4, !tbaa !9
  %13 = load ptr, ptr %7, align 8
  %14 = load ptr, ptr %8, align 8, !tbaa !5
  %15 = icmp ne ptr %14, null
  br i1 %15, label %16, label %19

16:                                               ; preds = %5
  %17 = load ptr, ptr %9, align 8, !tbaa !5
  %18 = icmp ne ptr %17, null
  br i1 %18, label %20, label %19

19:                                               ; preds = %16, %5
  store i32 -1, ptr %6, align 4
  br label %31

20:                                               ; preds = %16
  call void @llvm.lifetime.start.p0(i64 4, ptr %12) #3
  %21 = load ptr, ptr %8, align 8, !tbaa !5
  %22 = load ptr, ptr %9, align 8, !tbaa !5
  %23 = load i32, ptr %10, align 4, !tbaa !9
  %24 = load i32, ptr %11, align 4, !tbaa !9
  %25 = call i32 @lodepng_encode32_file(ptr noundef %21, ptr noundef %22, i32 noundef %23, i32 noundef %24)
  store i32 %25, ptr %12, align 4, !tbaa !9
  %26 = load i32, ptr %12, align 4, !tbaa !9
  %27 = icmp ne i32 %26, 0
  br i1 %27, label %28, label %29

28:                                               ; preds = %20
  br label %29

29:                                               ; preds = %28, %20
  %30 = load i32, ptr %12, align 4, !tbaa !9
  store i32 %30, ptr %6, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %12) #3
  br label %31

31:                                               ; preds = %29, %19
  %32 = load i32, ptr %6, align 4
  ret i32 %32
}

declare i32 @lodepng_encode32_file(ptr noundef, ptr noundef, i32 noundef, i32 noundef) #2

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #2 = { "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}


; 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 i32 @_ZN7gcanvas12LodePngCoder6EncodeEPKcPKhjj(ptr nocapture noundef nonnull readnone align 8 dereferenceable(8) %0, ptr noundef %1, ptr noundef %2, i32 noundef %3, i32 noundef %4) unnamed_addr #0 align 2 {
  %6 = icmp ne ptr %1, null
  %7 = icmp ne ptr %2, null
  %or.cond = and i1 %6, %7
  br i1 %or.cond, label %8, label %10

8:                                                ; preds = %5
  %9 = tail call i32 @lodepng_encode32_file(ptr noundef nonnull %1, ptr noundef nonnull %2, i32 noundef %3, i32 noundef %4)
  br label %10

10:                                               ; preds = %5, %8
  %.0 = phi i32 [ %9, %8 ], [ -1, %5 ]
  ret i32 %.0
}

declare i32 @lodepng_encode32_file(ptr noundef, ptr noundef, i32 noundef, i32 noundef) local_unnamed_addr #1

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" }
attributes #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" }

!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)"}


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