; LLVM IR from cornell-zhang/rosetta :: BNN/cpp/minizip (ioapi_mem)

; 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.ourmemory_s = type { ptr, i64, i64, i64, 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: nounwind uwtable
define dso_local i64 @fread_mem_func(ptr noundef %0, ptr noundef %1, ptr noundef %2, i64 noundef %3) #1 {
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca i64, align 8
  %9 = alloca ptr, align 8
  store ptr %0, ptr %5, align 8, !tbaa !5
  store ptr %1, ptr %6, align 8, !tbaa !5
  store ptr %2, ptr %7, align 8, !tbaa !5
  store i64 %3, ptr %8, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #3
  %10 = load ptr, ptr %6, align 8, !tbaa !5
  store ptr %10, ptr %9, align 8, !tbaa !5
  %11 = load i64, ptr %8, align 8, !tbaa !9
  %12 = load ptr, ptr %9, align 8, !tbaa !5
  %13 = getelementptr inbounds %struct.ourmemory_s, ptr %12, i32 0, i32 1
  %14 = load i64, ptr %13, align 8, !tbaa !11
  %15 = load ptr, ptr %9, align 8, !tbaa !5
  %16 = getelementptr inbounds %struct.ourmemory_s, ptr %15, i32 0, i32 3
  %17 = load i64, ptr %16, align 8, !tbaa !14
  %18 = sub i64 %14, %17
  %19 = icmp ugt i64 %11, %18
  br i1 %19, label %20, label %28

20:                                               ; preds = %4
  %21 = load ptr, ptr %9, align 8, !tbaa !5
  %22 = getelementptr inbounds %struct.ourmemory_s, ptr %21, i32 0, i32 1
  %23 = load i64, ptr %22, align 8, !tbaa !11
  %24 = load ptr, ptr %9, align 8, !tbaa !5
  %25 = getelementptr inbounds %struct.ourmemory_s, ptr %24, i32 0, i32 3
  %26 = load i64, ptr %25, align 8, !tbaa !14
  %27 = sub i64 %23, %26
  store i64 %27, ptr %8, align 8, !tbaa !9
  br label %28

28:                                               ; preds = %20, %4
  %29 = load ptr, ptr %7, align 8, !tbaa !5
  %30 = load ptr, ptr %9, align 8, !tbaa !5
  %31 = getelementptr inbounds %struct.ourmemory_s, ptr %30, i32 0, i32 0
  %32 = load ptr, ptr %31, align 8, !tbaa !15
  %33 = load ptr, ptr %9, align 8, !tbaa !5
  %34 = getelementptr inbounds %struct.ourmemory_s, ptr %33, i32 0, i32 3
  %35 = load i64, ptr %34, align 8, !tbaa !14
  %36 = getelementptr inbounds i8, ptr %32, i64 %35
  %37 = load i64, ptr %8, align 8, !tbaa !9
  call void @llvm.memcpy.p0.p0.i64(ptr align 1 %29, ptr align 1 %36, i64 %37, i1 false)
  %38 = load i64, ptr %8, align 8, !tbaa !9
  %39 = load ptr, ptr %9, align 8, !tbaa !5
  %40 = getelementptr inbounds %struct.ourmemory_s, ptr %39, i32 0, i32 3
  %41 = load i64, ptr %40, align 8, !tbaa !14
  %42 = add i64 %41, %38
  store i64 %42, ptr %40, align 8, !tbaa !14
  %43 = load i64, ptr %8, align 8, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #3
  ret i64 %43
}

; 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) #2

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
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/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"long", !7, i64 0}
!11 = !{!12, !10, i64 8}
!12 = !{!"ourmemory_s", !6, i64 0, !10, i64 8, !10, i64 16, !10, i64 24, !13, i64 32}
!13 = !{!"int", !7, i64 0}
!14 = !{!12, !10, i64 24}
!15 = !{!12, !6, 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 nofree norecurse nosync nounwind willreturn memory(readwrite, inaccessiblemem: none) uwtable
define dso_local i64 @fread_mem_func(ptr nocapture noundef readnone %0, ptr nocapture noundef %1, ptr nocapture noundef writeonly %2, i64 noundef %3) local_unnamed_addr #0 {
  %5 = getelementptr inbounds i8, ptr %1, i64 8
  %6 = load i64, ptr %5, align 8, !tbaa !5
  %7 = getelementptr inbounds i8, ptr %1, i64 24
  %8 = load i64, ptr %7, align 8, !tbaa !12
  %9 = sub i64 %6, %8
  %spec.select = tail call i64 @llvm.umin.i64(i64 %9, i64 %3)
  %10 = load ptr, ptr %1, align 8, !tbaa !13
  %11 = getelementptr inbounds i8, ptr %10, i64 %8
  tail call void @llvm.memcpy.p0.p0.i64(ptr align 1 %2, ptr align 1 %11, i64 %spec.select, i1 false)
  %12 = load i64, ptr %7, align 8, !tbaa !12
  %13 = add i64 %12, %spec.select
  store i64 %13, ptr %7, align 8, !tbaa !12
  ret i64 %spec.select
}

; 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) #1

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare i64 @llvm.umin.i64(i64, i64) #2

attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn memory(readwrite, inaccessiblemem: none) 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 nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }

!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, !10, i64 8}
!6 = !{!"ourmemory_s", !7, i64 0, !10, i64 8, !10, i64 16, !10, i64 24, !11, i64 32}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"long", !8, i64 0}
!11 = !{!"int", !8, i64 0}
!12 = !{!6, !10, i64 24}
!13 = !{!6, !7, i64 0}


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