; LLVM IR from aap/pdp6 :: emu (dt)

; 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.Device = type { ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr }
%struct.Dx555 = type { %struct.Device, ptr, i32, i32, i32, i32, ptr, ptr, ptr, i32 }

@dx_ident = external dso_local global ptr, align 8
@dxproto = external hidden global %struct.Device, align 8

; 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 ptr @makedx(i32 noundef %0, ptr noundef %1) #1 {
  %3 = alloca i32, align 4
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  store i32 %0, ptr %3, align 4, !tbaa !5
  store ptr %1, ptr %4, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #5
  %6 = call noalias ptr @malloc(i64 noundef 120) #6
  store ptr %6, ptr %5, align 8, !tbaa !9
  %7 = load ptr, ptr %5, align 8, !tbaa !9
  call void @llvm.memset.p0.i64(ptr align 8 %7, i8 0, i64 120, i1 false)
  %8 = load ptr, ptr %5, align 8, !tbaa !9
  %9 = getelementptr inbounds %struct.Dx555, ptr %8, i32 0, i32 0
  call void @llvm.memcpy.p0.p0.i64(ptr align 8 %9, ptr align 8 @dxproto, i64 64, i1 false), !tbaa.struct !11
  %10 = load ptr, ptr @dx_ident, align 8, !tbaa !9
  %11 = load ptr, ptr %5, align 8, !tbaa !9
  %12 = getelementptr inbounds %struct.Dx555, ptr %11, i32 0, i32 0
  %13 = getelementptr inbounds %struct.Device, ptr %12, i32 0, i32 1
  store ptr %10, ptr %13, align 8, !tbaa !12
  %14 = load ptr, ptr %5, align 8, !tbaa !9
  %15 = getelementptr inbounds %struct.Dx555, ptr %14, i32 0, i32 5
  store i32 -1, ptr %15, align 4, !tbaa !15
  %16 = call noalias ptr @malloc(i64 noundef 988288) #6
  %17 = load ptr, ptr %5, align 8, !tbaa !9
  %18 = getelementptr inbounds %struct.Dx555, ptr %17, i32 0, i32 6
  store ptr %16, ptr %18, align 8, !tbaa !16
  %19 = load ptr, ptr %5, align 8, !tbaa !9
  call void @resetdx(ptr noundef %19)
  %20 = load ptr, ptr %5, align 8, !tbaa !9
  %21 = getelementptr inbounds %struct.Dx555, ptr %20, i32 0, i32 0
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #5
  ret ptr %21
}

; Function Attrs: nounwind allocsize(0)
declare noalias ptr @malloc(i64 noundef) #2

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #3

; 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) #4

; Function Attrs: nounwind uwtable
declare hidden void @resetdx(ptr noundef) #1

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 = { nounwind 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 #3 = { nocallback nofree nounwind willreturn memory(argmem: write) }
attributes #4 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #5 = { nounwind }
attributes #6 = { nounwind 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/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"any pointer", !7, i64 0}
!11 = !{i64 0, i64 8, !9, i64 8, i64 8, !9, i64 16, i64 8, !9, i64 24, i64 8, !9, i64 32, i64 8, !9, i64 40, i64 8, !9, i64 48, i64 8, !9, i64 56, i64 8, !9}
!12 = !{!13, !10, i64 8}
!13 = !{!"Dx555", !14, i64 0, !10, i64 64, !6, i64 72, !6, i64 76, !6, i64 80, !6, i64 84, !10, i64 88, !10, i64 96, !10, i64 104, !6, i64 112}
!14 = !{!"Device", !10, i64 0, !10, i64 8, !10, i64 16, !10, i64 24, !10, i64 32, !10, i64 40, !10, i64 48, !10, i64 56}
!15 = !{!13, !6, i64 84}
!16 = !{!13, !10, i64 88}


; 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"

%struct.Device = type { ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr }

@dx_ident = external dso_local local_unnamed_addr global ptr, align 8
@dxproto = external hidden local_unnamed_addr global %struct.Device, align 8

; Function Attrs: nounwind uwtable
define dso_local noundef ptr @makedx(i32 noundef %0, ptr nocapture noundef readnone %1) local_unnamed_addr #0 {
  %3 = tail call noalias dereferenceable_or_null(120) ptr @malloc(i64 noundef 120) #4
  %4 = getelementptr i8, ptr %3, i64 64
  tail call void @llvm.memset.p0.i64(ptr noundef nonnull align 8 dereferenceable(56) %4, i8 0, i64 56, i1 false)
  tail call void @llvm.memcpy.p0.p0.i64(ptr noundef nonnull align 8 dereferenceable(64) %3, ptr noundef nonnull align 8 dereferenceable(64) @dxproto, i64 64, i1 false), !tbaa.struct !5
  %5 = load ptr, ptr @dx_ident, align 8, !tbaa !6
  %6 = getelementptr inbounds i8, ptr %3, i64 8
  store ptr %5, ptr %6, align 8, !tbaa !10
  %7 = getelementptr inbounds i8, ptr %3, i64 84
  store i32 -1, ptr %7, align 4, !tbaa !14
  %8 = tail call noalias dereferenceable_or_null(988288) ptr @malloc(i64 noundef 988288) #4
  %9 = getelementptr inbounds i8, ptr %3, i64 88
  store ptr %8, ptr %9, align 8, !tbaa !15
  tail call void @resetdx(ptr noundef %3)
  ret ptr %3
}

; Function Attrs: mustprogress nofree nounwind willreturn allockind("alloc,uninitialized") allocsize(0) memory(inaccessiblemem: readwrite)
declare noalias noundef ptr @malloc(i64 noundef) local_unnamed_addr #1

; Function Attrs: mustprogress nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #2

; 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) #3

; Function Attrs: nounwind uwtable
declare hidden void @resetdx(ptr noundef) local_unnamed_addr #0

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" }
attributes #1 = { mustprogress nofree nounwind willreturn allockind("alloc,uninitialized") allocsize(0) memory(inaccessiblemem: readwrite) "alloc-family"="malloc" "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 nounwind willreturn memory(argmem: write) }
attributes #3 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #4 = { nounwind 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 = !{i64 0, i64 8, !6, i64 8, i64 8, !6, i64 16, i64 8, !6, i64 24, i64 8, !6, i64 32, i64 8, !6, i64 40, i64 8, !6, i64 48, i64 8, !6, i64 56, i64 8, !6}
!6 = !{!7, !7, i64 0}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!11, !7, i64 8}
!11 = !{!"Dx555", !12, i64 0, !7, i64 64, !13, i64 72, !13, i64 76, !13, i64 80, !13, i64 84, !7, i64 88, !7, i64 96, !7, i64 104, !13, i64 112}
!12 = !{!"Device", !7, i64 0, !7, i64 8, !7, i64 16, !7, i64 24, !7, i64 32, !7, i64 40, !7, i64 48, !7, i64 56}
!13 = !{!"int", !8, i64 0}
!14 = !{!11, !13, i64 84}
!15 = !{!11, !7, i64 88}


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