; LLVM IR from tomoyasuzuki/kvmm :: uart (create_uart)

; 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.uart = type { i8, i8, i8, i8, i8, i8, i8, i8, i32, i32, ptr }

@uart = external dso_local global ptr, align 8

; Function Attrs: nounwind uwtable
define dso_local void @create_uart() #0 {
  %1 = call noalias ptr @malloc(i64 noundef 24) #2
  store ptr %1, ptr @uart, align 8, !tbaa !5
  %2 = load ptr, ptr @uart, align 8, !tbaa !5
  %3 = getelementptr inbounds %struct.uart, ptr %2, i32 0, i32 0
  store i8 0, ptr %3, align 8, !tbaa !9
  %4 = load ptr, ptr @uart, align 8, !tbaa !5
  %5 = getelementptr inbounds %struct.uart, ptr %4, i32 0, i32 1
  store i8 0, ptr %5, align 1, !tbaa !12
  %6 = load ptr, ptr @uart, align 8, !tbaa !5
  %7 = getelementptr inbounds %struct.uart, ptr %6, i32 0, i32 2
  store i8 0, ptr %7, align 2, !tbaa !13
  %8 = load ptr, ptr @uart, align 8, !tbaa !5
  %9 = getelementptr inbounds %struct.uart, ptr %8, i32 0, i32 3
  store i8 0, ptr %9, align 1, !tbaa !14
  %10 = load ptr, ptr @uart, align 8, !tbaa !5
  %11 = getelementptr inbounds %struct.uart, ptr %10, i32 0, i32 4
  store i8 0, ptr %11, align 4, !tbaa !15
  %12 = load ptr, ptr @uart, align 8, !tbaa !5
  %13 = getelementptr inbounds %struct.uart, ptr %12, i32 0, i32 5
  store i8 0, ptr %13, align 1, !tbaa !16
  %14 = load ptr, ptr @uart, align 8, !tbaa !5
  %15 = getelementptr inbounds %struct.uart, ptr %14, i32 0, i32 6
  store i8 0, ptr %15, align 2, !tbaa !17
  %16 = load ptr, ptr @uart, align 8, !tbaa !5
  %17 = getelementptr inbounds %struct.uart, ptr %16, i32 0, i32 7
  store i8 0, ptr %17, align 1, !tbaa !18
  %18 = load ptr, ptr @uart, align 8, !tbaa !5
  %19 = getelementptr inbounds %struct.uart, ptr %18, i32 0, i32 8
  store i32 0, ptr %19, align 8, !tbaa !19
  %20 = load ptr, ptr @uart, align 8, !tbaa !5
  %21 = getelementptr inbounds %struct.uart, ptr %20, i32 0, i32 9
  store i32 0, ptr %21, align 4, !tbaa !20
  %22 = call noalias ptr @malloc(i64 noundef 10) #2
  %23 = load ptr, ptr @uart, align 8, !tbaa !5
  %24 = getelementptr inbounds %struct.uart, ptr %23, i32 0, i32 10
  store ptr %22, ptr %24, align 8, !tbaa !21
  ret void
}

; Function Attrs: nounwind allocsize(0)
declare noalias ptr @malloc(i64 noundef) #1

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 = { 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 #2 = { 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 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !7, i64 0}
!10 = !{!"uart", !7, i64 0, !7, i64 1, !7, i64 2, !7, i64 3, !7, i64 4, !7, i64 5, !7, i64 6, !7, i64 7, !11, i64 8, !11, i64 12, !6, i64 16}
!11 = !{!"int", !7, i64 0}
!12 = !{!10, !7, i64 1}
!13 = !{!10, !7, i64 2}
!14 = !{!10, !7, i64 3}
!15 = !{!10, !7, i64 4}
!16 = !{!10, !7, i64 5}
!17 = !{!10, !7, i64 6}
!18 = !{!10, !7, i64 7}
!19 = !{!10, !11, i64 8}
!20 = !{!10, !11, i64 12}
!21 = !{!10, !6, 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"

@uart = external dso_local local_unnamed_addr global ptr, align 8

; Function Attrs: mustprogress nofree nounwind willreturn memory(write, argmem: none, inaccessiblemem: readwrite) uwtable
define dso_local void @create_uart() local_unnamed_addr #0 {
  %1 = tail call noalias dereferenceable_or_null(24) ptr @malloc(i64 noundef 24) #3
  store ptr %1, ptr @uart, align 8, !tbaa !5
  %2 = tail call noalias dereferenceable_or_null(10) ptr @malloc(i64 noundef 10) #3
  %3 = getelementptr inbounds i8, ptr %1, i64 16
  tail call void @llvm.memset.p0.i64(ptr noundef nonnull align 8 dereferenceable(16) %1, i8 0, i64 16, i1 false)
  store ptr %2, ptr %3, align 8, !tbaa !9
  ret void
}

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

attributes #0 = { mustprogress nofree nounwind willreturn memory(write, argmem: none, inaccessiblemem: readwrite) 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 = { nocallback nofree nounwind willreturn memory(argmem: write) }
attributes #3 = { 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 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !6, i64 16}
!10 = !{!"uart", !7, i64 0, !7, i64 1, !7, i64 2, !7, i64 3, !7, i64 4, !7, i64 5, !7, i64 6, !7, i64 7, !11, i64 8, !11, i64 12, !6, i64 16}
!11 = !{!"int", !7, i64 0}


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