; LLVM IR from Xingyu-Lin/softgym :: PyFlex/core/png.ll (Z7PngLoadPKcR8PngImage)

; 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.PngImage = type { i16, i16, ptr }

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @stbi_image_free(ptr noundef) #0

; Function Attrs: mustprogress uwtable
declare dso_local ptr @stbi_load(ptr noundef, ptr noundef, ptr noundef, ptr noundef, i32 noundef) #1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: mustprogress uwtable
define dso_local noundef zeroext i1 @_Z7PngLoadPKcR8PngImage(ptr noundef %0, ptr noundef nonnull align 8 dereferenceable(16) %1) #1 {
  %3 = alloca i1, align 1
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  %9 = alloca ptr, align 8
  %10 = alloca i32, align 4
  %11 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #6
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #6
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #6
  %12 = load ptr, ptr %4, align 8, !tbaa !5
  %13 = call ptr @stbi_load(ptr noundef %12, ptr noundef %6, ptr noundef %7, ptr noundef %8, i32 noundef 4)
  store ptr %13, ptr %9, align 8, !tbaa !5
  %14 = load ptr, ptr %9, align 8, !tbaa !5
  %15 = icmp ne ptr %14, null
  br i1 %15, label %16, label %46

16:                                               ; preds = %2
  call void @llvm.lifetime.start.p0(i64 4, ptr %10) #6
  %17 = load i32, ptr %6, align 4, !tbaa !9
  %18 = load i32, ptr %7, align 4, !tbaa !9
  %19 = mul nsw i32 %17, %18
  store i32 %19, ptr %10, align 4, !tbaa !9
  %20 = load i32, ptr %10, align 4, !tbaa !9
  %21 = sext i32 %20 to i64
  %22 = call { i64, i1 } @llvm.umul.with.overflow.i64(i64 %21, i64 4)
  %23 = extractvalue { i64, i1 } %22, 1
  %24 = extractvalue { i64, i1 } %22, 0
  %25 = select i1 %23, i64 -1, i64 %24
  %26 = call noalias noundef nonnull ptr @_Znam(i64 noundef %25) #7
  %27 = load ptr, ptr %5, align 8, !tbaa !5
  %28 = getelementptr inbounds %struct.PngImage, ptr %27, i32 0, i32 2
  store ptr %26, ptr %28, align 8, !tbaa !11
  %29 = load ptr, ptr %5, align 8, !tbaa !5
  %30 = getelementptr inbounds %struct.PngImage, ptr %29, i32 0, i32 2
  %31 = load ptr, ptr %30, align 8, !tbaa !11
  %32 = load ptr, ptr %9, align 8, !tbaa !5
  %33 = load i32, ptr %10, align 4, !tbaa !9
  %34 = sext i32 %33 to i64
  %35 = mul i64 %34, 1
  %36 = mul i64 %35, 4
  call void @llvm.memcpy.p0.p0.i64(ptr align 4 %31, ptr align 1 %32, i64 %36, i1 false)
  %37 = load i32, ptr %6, align 4, !tbaa !9
  %38 = trunc i32 %37 to i16
  %39 = load ptr, ptr %5, align 8, !tbaa !5
  %40 = getelementptr inbounds %struct.PngImage, ptr %39, i32 0, i32 0
  store i16 %38, ptr %40, align 8, !tbaa !14
  %41 = load i32, ptr %7, align 4, !tbaa !9
  %42 = trunc i32 %41 to i16
  %43 = load ptr, ptr %5, align 8, !tbaa !5
  %44 = getelementptr inbounds %struct.PngImage, ptr %43, i32 0, i32 1
  store i16 %42, ptr %44, align 2, !tbaa !15
  %45 = load ptr, ptr %9, align 8, !tbaa !5
  call void @stbi_image_free(ptr noundef %45)
  store i1 true, ptr %3, align 1
  store i32 1, ptr %11, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #6
  br label %47

46:                                               ; preds = %2
  store i1 false, ptr %3, align 1
  store i32 1, ptr %11, align 4
  br label %47

47:                                               ; preds = %46, %16
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #6
  %48 = load i1, ptr %3, align 1
  ret i1 %48
}

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare { i64, i1 } @llvm.umul.with.overflow.i64(i64, i64) #3

; Function Attrs: nobuiltin allocsize(0)
declare noundef nonnull ptr @_Znam(i64 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 = { 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 #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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #3 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #4 = { nobuiltin 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 #5 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #6 = { nounwind }
attributes #7 = { builtin allocsize(0) }

!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}
!11 = !{!12, !6, i64 8}
!12 = !{!"_ZTS8PngImage", !13, i64 0, !13, i64 2, !6, i64 8}
!13 = !{!"short", !7, i64 0}
!14 = !{!12, !13, i64 0}
!15 = !{!12, !13, i64 2}


; 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 nounwind uwtable
declare dso_local void @stbi_image_free(ptr noundef) local_unnamed_addr #0

; Function Attrs: mustprogress uwtable
declare dso_local ptr @stbi_load(ptr noundef, ptr noundef, ptr noundef, ptr noundef, i32 noundef) local_unnamed_addr #1

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: mustprogress uwtable
define dso_local noundef zeroext i1 @_Z7PngLoadPKcR8PngImage(ptr noundef %0, ptr nocapture noundef nonnull writeonly align 8 dereferenceable(16) %1) local_unnamed_addr #1 {
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %3) #5
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %4) #5
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %5) #5
  %6 = call ptr @stbi_load(ptr noundef %0, ptr noundef nonnull %3, ptr noundef nonnull %4, ptr noundef nonnull %5, i32 noundef 4)
  %.not = icmp ne ptr %6, null
  br i1 %.not, label %7, label %20

7:                                                ; preds = %2
  %8 = load i32, ptr %3, align 4, !tbaa !5
  %9 = load i32, ptr %4, align 4, !tbaa !5
  %10 = mul nsw i32 %9, %8
  %11 = sext i32 %10 to i64
  %12 = icmp slt i32 %10, 0
  %13 = shl nsw i64 %11, 2
  %14 = select i1 %12, i64 -1, i64 %13
  %15 = call noalias noundef nonnull ptr @_Znam(i64 noundef %14) #6
  %16 = getelementptr inbounds i8, ptr %1, i64 8
  store ptr %15, ptr %16, align 8, !tbaa !9
  call void @llvm.memcpy.p0.p0.i64(ptr nonnull align 4 %15, ptr nonnull align 1 %6, i64 %13, i1 false)
  %17 = trunc i32 %8 to i16
  store i16 %17, ptr %1, align 8, !tbaa !13
  %18 = trunc i32 %9 to i16
  %19 = getelementptr inbounds i8, ptr %1, i64 2
  store i16 %18, ptr %19, align 2, !tbaa !14
  call void @stbi_image_free(ptr noundef nonnull %6)
  br label %20

20:                                               ; preds = %2, %7
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %5) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %4) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %3) #5
  ret i1 %.not
}

; Function Attrs: nobuiltin allocsize(0)
declare noundef nonnull ptr @_Znam(i64 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 = { 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 #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 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #3 = { nobuiltin 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 #4 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #5 = { nounwind }
attributes #6 = { builtin allocsize(0) }

!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, !12, i64 8}
!10 = !{!"_ZTS8PngImage", !11, i64 0, !11, i64 2, !12, i64 8}
!11 = !{!"short", !7, i64 0}
!12 = !{!"any pointer", !7, i64 0}
!13 = !{!10, !11, i64 0}
!14 = !{!10, !11, i64 2}


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