; LLVM IR from awawa-dev/HyperHDR :: sources/image/ImageData.ll (ZN9ImageDataI8ColorRgbE5clearEv)

; 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"

%class.ImageData = type { i32, i32, %"class.std::unique_ptr", ptr }
%"class.std::unique_ptr" = type { %"struct.std::__uniq_ptr_data" }
%"struct.std::__uniq_ptr_data" = type { %"class.std::__uniq_ptr_impl" }
%"class.std::__uniq_ptr_impl" = type { %"class.std::tuple" }
%"class.std::tuple" = type { %"struct.std::_Tuple_impl" }
%"struct.std::_Tuple_impl" = type { %"struct.std::_Head_base.1" }
%"struct.std::_Head_base.1" = type { ptr }

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_ZN9ImageDataI8ColorRgbE5clearEv(ptr noundef nonnull align 8 dereferenceable(24) %0) #0 align 2 {
  %2 = alloca ptr, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  %3 = load ptr, ptr %2, align 8
  %4 = getelementptr inbounds %class.ImageData, ptr %3, i32 0, i32 3
  %5 = load ptr, ptr %4, align 8, !tbaa !9
  %6 = icmp ne ptr %5, null
  br i1 %6, label %7, label %18

7:                                                ; preds = %1
  %8 = getelementptr inbounds %class.ImageData, ptr %3, i32 0, i32 3
  %9 = load ptr, ptr %8, align 8, !tbaa !9
  %10 = getelementptr inbounds %class.ImageData, ptr %3, i32 0, i32 0
  %11 = load i32, ptr %10, align 8, !tbaa !18
  %12 = zext i32 %11 to i64
  %13 = getelementptr inbounds %class.ImageData, ptr %3, i32 0, i32 1
  %14 = load i32, ptr %13, align 4, !tbaa !19
  %15 = zext i32 %14 to i64
  %16 = mul i64 %12, %15
  %17 = mul i64 %16, 3
  call void @llvm.memset.p0.i64(ptr align 1 %9, i8 0, i64 %17, i1 false)
  br label %18

18:                                               ; preds = %7, %1
  ret void
}

; 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 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 = { 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, !6, i64 16}
!10 = !{!"_ZTS9ImageDataI8ColorRgbE", !11, i64 0, !11, i64 4, !12, i64 8, !6, i64 16}
!11 = !{!"int", !7, i64 0}
!12 = !{!"_ZTSSt10unique_ptrI12MemoryBufferIhESt14default_deleteIS1_EE", !13, i64 0}
!13 = !{!"_ZTSSt15__uniq_ptr_dataI12MemoryBufferIhESt14default_deleteIS1_ELb1ELb1EE", !14, i64 0}
!14 = !{!"_ZTSSt15__uniq_ptr_implI12MemoryBufferIhESt14default_deleteIS1_EE", !15, i64 0}
!15 = !{!"_ZTSSt5tupleIJP12MemoryBufferIhESt14default_deleteIS1_EEE", !16, i64 0}
!16 = !{!"_ZTSSt11_Tuple_implILm0EJP12MemoryBufferIhESt14default_deleteIS1_EEE", !17, i64 0}
!17 = !{!"_ZTSSt10_Head_baseILm0EP12MemoryBufferIhELb0EE", !6, i64 0}
!18 = !{!10, !11, i64 0}
!19 = !{!10, !11, i64 4}


; 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(write, argmem: readwrite, inaccessiblemem: none) uwtable
define dso_local void @_ZN9ImageDataI8ColorRgbE5clearEv(ptr nocapture noundef nonnull readonly align 8 dereferenceable(24) %0) local_unnamed_addr #0 align 2 {
  %2 = getelementptr inbounds i8, ptr %0, i64 16
  %3 = load ptr, ptr %2, align 8, !tbaa !5
  %.not = icmp eq ptr %3, null
  br i1 %.not, label %12, label %4

4:                                                ; preds = %1
  %5 = load i32, ptr %0, align 8, !tbaa !17
  %6 = zext i32 %5 to i64
  %7 = getelementptr inbounds i8, ptr %0, i64 4
  %8 = load i32, ptr %7, align 4, !tbaa !18
  %9 = zext i32 %8 to i64
  %10 = mul nuw nsw i64 %6, 3
  %11 = mul i64 %10, %9
  tail call void @llvm.memset.p0.i64(ptr nonnull align 1 %3, i8 0, i64 %11, i1 false)
  br label %12

12:                                               ; preds = %4, %1
  ret void
}

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

attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn memory(write, argmem: readwrite, 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 = { mustprogress 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, !16, i64 16}
!6 = !{!"_ZTS9ImageDataI8ColorRgbE", !7, i64 0, !7, i64 4, !10, i64 8, !16, i64 16}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"_ZTSSt10unique_ptrI12MemoryBufferIhESt14default_deleteIS1_EE", !11, i64 0}
!11 = !{!"_ZTSSt15__uniq_ptr_dataI12MemoryBufferIhESt14default_deleteIS1_ELb1ELb1EE", !12, i64 0}
!12 = !{!"_ZTSSt15__uniq_ptr_implI12MemoryBufferIhESt14default_deleteIS1_EE", !13, i64 0}
!13 = !{!"_ZTSSt5tupleIJP12MemoryBufferIhESt14default_deleteIS1_EEE", !14, i64 0}
!14 = !{!"_ZTSSt11_Tuple_implILm0EJP12MemoryBufferIhESt14default_deleteIS1_EEE", !15, i64 0}
!15 = !{!"_ZTSSt10_Head_baseILm0EP12MemoryBufferIhELb0EE", !16, i64 0}
!16 = !{!"any pointer", !8, i64 0}
!17 = !{!6, !7, i64 0}
!18 = !{!6, !7, i64 4}


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