; LLVM IR from JayXon/Leanify :: lib/mozjpeg (jmemnobs)

; 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.jpeg_common_struct = type { ptr, ptr, ptr, ptr, i32, i32 }
%struct.jpeg_memory_mgr = type { ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, i64, i64 }

; Function Attrs: nounwind uwtable
define dso_local i64 @jpeg_mem_available(ptr noundef %0, i64 noundef %1, i64 noundef %2, i64 noundef %3) #0 {
  %5 = alloca i64, align 8
  %6 = alloca ptr, align 8
  %7 = alloca i64, align 8
  %8 = alloca i64, align 8
  %9 = alloca i64, align 8
  store ptr %0, ptr %6, align 8, !tbaa !5
  store i64 %1, ptr %7, align 8, !tbaa !9
  store i64 %2, ptr %8, align 8, !tbaa !9
  store i64 %3, ptr %9, align 8, !tbaa !9
  %10 = load ptr, ptr %6, align 8, !tbaa !5
  %11 = getelementptr inbounds %struct.jpeg_common_struct, ptr %10, i32 0, i32 1
  %12 = load ptr, ptr %11, align 8, !tbaa !11
  %13 = getelementptr inbounds %struct.jpeg_memory_mgr, ptr %12, i32 0, i32 11
  %14 = load i64, ptr %13, align 8, !tbaa !14
  %15 = icmp ne i64 %14, 0
  br i1 %15, label %16, label %33

16:                                               ; preds = %4
  %17 = load ptr, ptr %6, align 8, !tbaa !5
  %18 = getelementptr inbounds %struct.jpeg_common_struct, ptr %17, i32 0, i32 1
  %19 = load ptr, ptr %18, align 8, !tbaa !11
  %20 = getelementptr inbounds %struct.jpeg_memory_mgr, ptr %19, i32 0, i32 11
  %21 = load i64, ptr %20, align 8, !tbaa !14
  %22 = load i64, ptr %9, align 8, !tbaa !9
  %23 = icmp ugt i64 %21, %22
  br i1 %23, label %24, label %32

24:                                               ; preds = %16
  %25 = load ptr, ptr %6, align 8, !tbaa !5
  %26 = getelementptr inbounds %struct.jpeg_common_struct, ptr %25, i32 0, i32 1
  %27 = load ptr, ptr %26, align 8, !tbaa !11
  %28 = getelementptr inbounds %struct.jpeg_memory_mgr, ptr %27, i32 0, i32 11
  %29 = load i64, ptr %28, align 8, !tbaa !14
  %30 = load i64, ptr %9, align 8, !tbaa !9
  %31 = sub i64 %29, %30
  store i64 %31, ptr %5, align 8
  br label %35

32:                                               ; preds = %16
  store i64 0, ptr %5, align 8
  br label %35

33:                                               ; preds = %4
  %34 = load i64, ptr %8, align 8, !tbaa !9
  store i64 %34, ptr %5, align 8
  br label %35

35:                                               ; preds = %33, %32, %24
  %36 = load i64, ptr %5, align 8
  ret i64 %36
}

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" }

!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, !6, i64 8}
!12 = !{!"jpeg_common_struct", !6, i64 0, !6, i64 8, !6, i64 16, !6, i64 24, !13, i64 32, !13, i64 36}
!13 = !{!"int", !7, i64 0}
!14 = !{!15, !10, i64 88}
!15 = !{!"jpeg_memory_mgr", !6, i64 0, !6, i64 8, !6, i64 16, !6, i64 24, !6, i64 32, !6, i64 40, !6, i64 48, !6, i64 56, !6, i64 64, !6, i64 72, !6, i64 80, !10, i64 88, !10, i64 96}


; 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(read, inaccessiblemem: none) uwtable
define dso_local i64 @jpeg_mem_available(ptr nocapture noundef readonly %0, i64 noundef %1, i64 noundef %2, i64 noundef %3) local_unnamed_addr #0 {
  %5 = getelementptr inbounds i8, ptr %0, i64 8
  %6 = load ptr, ptr %5, align 8, !tbaa !5
  %7 = getelementptr inbounds i8, ptr %6, i64 88
  %8 = load i64, ptr %7, align 8, !tbaa !11
  %.not = icmp eq i64 %8, 0
  %spec.select = tail call i64 @llvm.usub.sat.i64(i64 %8, i64 %3)
  %.0 = select i1 %.not, i64 %2, i64 %spec.select
  ret i64 %.0
}

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare i64 @llvm.usub.sat.i64(i64, i64) #1

attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn memory(read, 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 = { 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, !7, i64 8}
!6 = !{!"jpeg_common_struct", !7, i64 0, !7, i64 8, !7, i64 16, !7, i64 24, !10, i64 32, !10, i64 36}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"int", !8, i64 0}
!11 = !{!12, !13, i64 88}
!12 = !{!"jpeg_memory_mgr", !7, i64 0, !7, i64 8, !7, i64 16, !7, i64 24, !7, i64 32, !7, i64 40, !7, i64 48, !7, i64 56, !7, i64 64, !7, i64 72, !7, i64 80, !13, i64 88, !13, i64 96}
!13 = !{!"long", !8, i64 0}


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