; LLVM IR from Adlik/Adlik :: cub/string/scanner.ll (ZN3cub7ScannerC2ENS_10StringViewE)

; 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.cub::StringView" = type { ptr, i64 }
%"struct.cub::Scanner" = type <{ %"struct.cub::StringView", ptr, ptr, i8, [7 x i8] }>

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN3cub7ScannerC2ENS_10StringViewE(ptr noundef nonnull align 8 dereferenceable(33) %0, ptr %1, i64 %2) unnamed_addr #0 align 2 {
  %4 = alloca %"struct.cub::StringView", align 8
  %5 = alloca ptr, align 8
  %6 = getelementptr inbounds { ptr, i64 }, ptr %4, i32 0, i32 0
  store ptr %1, ptr %6, align 8
  %7 = getelementptr inbounds { ptr, i64 }, ptr %4, i32 0, i32 1
  store i64 %2, ptr %7, align 8
  store ptr %0, ptr %5, align 8, !tbaa !5
  %8 = load ptr, ptr %5, align 8
  %9 = getelementptr inbounds %"struct.cub::Scanner", ptr %8, i32 0, i32 0
  call void @llvm.memcpy.p0.p0.i64(ptr align 8 %9, ptr align 8 %4, i64 16, i1 false), !tbaa.struct !9
  %10 = getelementptr inbounds %"struct.cub::Scanner", ptr %8, i32 0, i32 1
  store ptr null, ptr %10, align 8, !tbaa !12
  %11 = getelementptr inbounds %"struct.cub::Scanner", ptr %8, i32 0, i32 2
  store ptr null, ptr %11, align 8, !tbaa !16
  %12 = getelementptr inbounds %"struct.cub::Scanner", ptr %8, i32 0, i32 3
  store i8 0, ptr %12, align 8, !tbaa !17
  %13 = call noundef nonnull align 8 dereferenceable(33) ptr @_ZN3cub7Scanner14restartCaptureEv(ptr noundef nonnull align 8 dereferenceable(33) %8)
  ret void
}

; 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) #1

; Function Attrs: mustprogress uwtable
declare dso_local noundef nonnull align 8 dereferenceable(33) ptr @_ZN3cub7Scanner14restartCaptureEv(ptr noundef nonnull align 8 dereferenceable(33)) #0 align 2

attributes #0 = { mustprogress 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 nounwind willreturn memory(argmem: readwrite) }

!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++ TBAA"}
!9 = !{i64 0, i64 8, !5, i64 8, i64 8, !10}
!10 = !{!11, !11, i64 0}
!11 = !{!"long", !7, i64 0}
!12 = !{!13, !6, i64 16}
!13 = !{!"_ZTSN3cub7ScannerE", !14, i64 0, !6, i64 16, !6, i64 24, !15, i64 32}
!14 = !{!"_ZTSN3cub10StringViewE", !6, i64 0, !11, i64 8}
!15 = !{!"bool", !7, i64 0}
!16 = !{!13, !6, i64 24}
!17 = !{!13, !15, i64 32}


; 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 uwtable
define dso_local void @_ZN3cub7ScannerC2ENS_10StringViewE(ptr noundef nonnull align 8 dereferenceable(33) %0, ptr %1, i64 %2) unnamed_addr #0 align 2 {
  store ptr %1, ptr %0, align 8, !tbaa !5
  %.sroa.2.0..sroa_idx = getelementptr inbounds i8, ptr %0, i64 8
  store i64 %2, ptr %.sroa.2.0..sroa_idx, align 8, !tbaa !9
  %4 = getelementptr inbounds i8, ptr %0, i64 16
  tail call void @llvm.memset.p0.i64(ptr noundef nonnull align 8 dereferenceable(17) %4, i8 0, i64 17, i1 false)
  %5 = tail call noundef nonnull align 8 dereferenceable(33) ptr @_ZN3cub7Scanner14restartCaptureEv(ptr noundef nonnull align 8 dereferenceable(33) %0)
  ret void
}

; Function Attrs: mustprogress uwtable
declare dso_local noundef nonnull align 8 dereferenceable(33) ptr @_ZN3cub7Scanner14restartCaptureEv(ptr noundef nonnull align 8 dereferenceable(33)) local_unnamed_addr #0 align 2

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #1

attributes #0 = { mustprogress 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 nounwind willreturn memory(argmem: write) }

!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++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"long", !7, i64 0}


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