; LLVM IR from libtcod/libtcod :: src/libtcod (zip_c)

; 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.TCOD_Zip = type { ptr, i64, i32, i32, 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

declare ptr @TCOD_list_new() #1

declare i32 @TCOD_list_size(ptr noundef) #1

; Function Attrs: nounwind uwtable
define dso_local i32 @TCOD_zip_get_remaining_bytes(ptr noundef %0) #2 {
  %2 = alloca ptr, align 8
  %3 = alloca ptr, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #3
  %4 = load ptr, ptr %2, align 8, !tbaa !5
  store ptr %4, ptr %3, align 8, !tbaa !5
  %5 = load ptr, ptr %3, align 8, !tbaa !5
  %6 = getelementptr inbounds %struct.TCOD_Zip, ptr %5, i32 0, i32 0
  %7 = load ptr, ptr %6, align 8, !tbaa !9
  %8 = icmp ne ptr %7, null
  br i1 %8, label %13, label %9

9:                                                ; preds = %1
  %10 = call ptr @TCOD_list_new()
  %11 = load ptr, ptr %3, align 8, !tbaa !5
  %12 = getelementptr inbounds %struct.TCOD_Zip, ptr %11, i32 0, i32 0
  store ptr %10, ptr %12, align 8, !tbaa !9
  br label %13

13:                                               ; preds = %9, %1
  %14 = load ptr, ptr %3, align 8, !tbaa !5
  %15 = getelementptr inbounds %struct.TCOD_Zip, ptr %14, i32 0, i32 0
  %16 = load ptr, ptr %15, align 8, !tbaa !9
  %17 = call i32 @TCOD_list_size(ptr noundef %16)
  %18 = load ptr, ptr %3, align 8, !tbaa !5
  %19 = getelementptr inbounds %struct.TCOD_Zip, ptr %18, i32 0, i32 4
  %20 = load i32, ptr %19, align 8, !tbaa !13
  %21 = sub nsw i32 %17, %20
  %22 = sext i32 %21 to i64
  %23 = mul i64 %22, 8
  %24 = load ptr, ptr %3, align 8, !tbaa !5
  %25 = getelementptr inbounds %struct.TCOD_Zip, ptr %24, i32 0, i32 2
  %26 = load i32, ptr %25, align 8, !tbaa !14
  %27 = sext i32 %26 to i64
  %28 = add i64 %23, %27
  %29 = trunc i64 %28 to i32
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #3
  ret i32 %29
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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" }
attributes #2 = { 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 #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, !6, i64 0}
!10 = !{!"TCOD_Zip", !6, i64 0, !11, i64 8, !12, i64 16, !12, i64 20, !12, i64 24}
!11 = !{!"long", !7, i64 0}
!12 = !{!"int", !7, i64 0}
!13 = !{!10, !12, i64 24}
!14 = !{!10, !12, i64 16}


; 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"

declare ptr @TCOD_list_new() local_unnamed_addr #0

declare i32 @TCOD_list_size(ptr noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local i32 @TCOD_zip_get_remaining_bytes(ptr nocapture noundef %0) local_unnamed_addr #1 {
  %2 = load ptr, ptr %0, align 8, !tbaa !5
  %.not = icmp eq ptr %2, null
  br i1 %.not, label %3, label %5

3:                                                ; preds = %1
  %4 = tail call ptr @TCOD_list_new() #2
  store ptr %4, ptr %0, align 8, !tbaa !5
  br label %5

5:                                                ; preds = %3, %1
  %6 = phi ptr [ %4, %3 ], [ %2, %1 ]
  %7 = tail call i32 @TCOD_list_size(ptr noundef %6) #2
  %8 = getelementptr inbounds i8, ptr %0, i64 24
  %9 = load i32, ptr %8, align 8, !tbaa !12
  %10 = sub nsw i32 %7, %9
  %11 = shl i32 %10, 3
  %12 = getelementptr inbounds i8, ptr %0, i64 16
  %13 = load i32, ptr %12, align 8, !tbaa !13
  %14 = add i32 %11, %13
  ret i32 %14
}

attributes #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 = { 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 = { 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, !7, i64 0}
!6 = !{!"TCOD_Zip", !7, i64 0, !10, i64 8, !11, i64 16, !11, i64 20, !11, i64 24}
!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, !11, i64 24}
!13 = !{!6, !11, i64 16}


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