; LLVM IR from xhub/reshop :: gui/external/imgui/imgui_draw.ll (ZN6ImFont15ClearOutputDataEv)

; 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.ImFont = type <{ %struct.ImVector.7, float, float, %struct.ImVector.1, %struct.ImVector.8, ptr, ptr, ptr, i16, i16, i16, i16, float, float, i8, [3 x i8], float, float, float, i32, [2 x i8], [2 x i8] }>
%struct.ImVector.7 = type { i32, i32, ptr }
%struct.ImVector.1 = type { i32, i32, ptr }
%struct.ImVector.8 = type { i32, i32, ptr }

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #0

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZN8ImVectorItE5clearEv(ptr noundef nonnull align 8 dereferenceable(16)) #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN6ImFont15ClearOutputDataEv(ptr noundef nonnull align 8 dereferenceable(118) %0) #2 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 %struct.ImFont, ptr %3, i32 0, i32 2
  store float 0.000000e+00, ptr %4, align 4, !tbaa !9
  %5 = getelementptr inbounds %struct.ImFont, ptr %3, i32 0, i32 1
  store float 0.000000e+00, ptr %5, align 8, !tbaa !18
  %6 = getelementptr inbounds %struct.ImFont, ptr %3, i32 0, i32 4
  call void @_ZN8ImVectorI11ImFontGlyphE5clearEv(ptr noundef nonnull align 8 dereferenceable(16) %6)
  %7 = getelementptr inbounds %struct.ImFont, ptr %3, i32 0, i32 0
  call void @_ZN8ImVectorIfE5clearEv(ptr noundef nonnull align 8 dereferenceable(16) %7)
  %8 = getelementptr inbounds %struct.ImFont, ptr %3, i32 0, i32 3
  call void @_ZN8ImVectorItE5clearEv(ptr noundef nonnull align 8 dereferenceable(16) %8)
  %9 = getelementptr inbounds %struct.ImFont, ptr %3, i32 0, i32 5
  store ptr null, ptr %9, align 8, !tbaa !19
  %10 = getelementptr inbounds %struct.ImFont, ptr %3, i32 0, i32 6
  store ptr null, ptr %10, align 8, !tbaa !20
  %11 = getelementptr inbounds %struct.ImFont, ptr %3, i32 0, i32 14
  store i8 1, ptr %11, align 8, !tbaa !21
  %12 = getelementptr inbounds %struct.ImFont, ptr %3, i32 0, i32 18
  store float 0.000000e+00, ptr %12, align 4, !tbaa !22
  %13 = getelementptr inbounds %struct.ImFont, ptr %3, i32 0, i32 17
  store float 0.000000e+00, ptr %13, align 8, !tbaa !23
  %14 = getelementptr inbounds %struct.ImFont, ptr %3, i32 0, i32 19
  store i32 0, ptr %14, align 8, !tbaa !24
  %15 = getelementptr inbounds %struct.ImFont, ptr %3, i32 0, i32 20
  %16 = getelementptr inbounds [2 x i8], ptr %15, i64 0, i64 0
  call void @llvm.memset.p0.i64(ptr align 4 %16, i8 0, i64 2, i1 false)
  ret void
}

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZN8ImVectorI11ImFontGlyphE5clearEv(ptr noundef nonnull align 8 dereferenceable(16)) #1 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZN8ImVectorIfE5clearEv(ptr noundef nonnull align 8 dereferenceable(16)) #1 align 2

attributes #0 = { nocallback nofree nounwind willreturn memory(argmem: write) }
attributes #1 = { inlinehint 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 #2 = { 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" }

!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, !13, i64 20}
!10 = !{!"_ZTS6ImFont", !11, i64 0, !13, i64 16, !13, i64 20, !14, i64 24, !15, i64 40, !6, i64 56, !6, i64 64, !6, i64 72, !16, i64 80, !16, i64 82, !16, i64 84, !16, i64 86, !13, i64 88, !13, i64 92, !17, i64 96, !13, i64 100, !13, i64 104, !13, i64 108, !12, i64 112, !7, i64 116}
!11 = !{!"_ZTS8ImVectorIfE", !12, i64 0, !12, i64 4, !6, i64 8}
!12 = !{!"int", !7, i64 0}
!13 = !{!"float", !7, i64 0}
!14 = !{!"_ZTS8ImVectorItE", !12, i64 0, !12, i64 4, !6, i64 8}
!15 = !{!"_ZTS8ImVectorI11ImFontGlyphE", !12, i64 0, !12, i64 4, !6, i64 8}
!16 = !{!"short", !7, i64 0}
!17 = !{!"bool", !7, i64 0}
!18 = !{!10, !13, i64 16}
!19 = !{!10, !6, i64 56}
!20 = !{!10, !6, i64 64}
!21 = !{!10, !17, i64 96}
!22 = !{!10, !13, i64 108}
!23 = !{!10, !13, i64 104}
!24 = !{!10, !12, i64 112}


; 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 nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #0

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZN8ImVectorItE5clearEv(ptr noundef nonnull align 8 dereferenceable(16)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN6ImFont15ClearOutputDataEv(ptr noundef nonnull align 8 dereferenceable(118) %0) local_unnamed_addr #2 align 2 {
  %2 = getelementptr inbounds i8, ptr %0, i64 16
  store <2 x float> zeroinitializer, ptr %2, align 8, !tbaa !5
  %3 = getelementptr inbounds i8, ptr %0, i64 40
  tail call void @_ZN8ImVectorI11ImFontGlyphE5clearEv(ptr noundef nonnull align 8 dereferenceable(16) %3)
  tail call void @_ZN8ImVectorIfE5clearEv(ptr noundef nonnull align 8 dereferenceable(16) %0)
  %4 = getelementptr inbounds i8, ptr %0, i64 24
  tail call void @_ZN8ImVectorItE5clearEv(ptr noundef nonnull align 8 dereferenceable(16) %4)
  %5 = getelementptr inbounds i8, ptr %0, i64 56
  %6 = getelementptr inbounds i8, ptr %0, i64 96
  tail call void @llvm.memset.p0.i64(ptr noundef nonnull align 8 dereferenceable(16) %5, i8 0, i64 16, i1 false)
  store i8 1, ptr %6, align 8, !tbaa !9
  %7 = getelementptr inbounds i8, ptr %0, i64 104
  tail call void @llvm.memset.p0.i64(ptr noundef nonnull align 8 dereferenceable(14) %7, i8 0, i64 14, i1 false)
  ret void
}

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZN8ImVectorI11ImFontGlyphE5clearEv(ptr noundef nonnull align 8 dereferenceable(16)) local_unnamed_addr #1 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZN8ImVectorIfE5clearEv(ptr noundef nonnull align 8 dereferenceable(16)) local_unnamed_addr #1 align 2

attributes #0 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: write) }
attributes #1 = { inlinehint 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 #2 = { 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" }

!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 = !{!"float", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !17, i64 96}
!10 = !{!"_ZTS6ImFont", !11, i64 0, !6, i64 16, !6, i64 20, !14, i64 24, !15, i64 40, !13, i64 56, !13, i64 64, !13, i64 72, !16, i64 80, !16, i64 82, !16, i64 84, !16, i64 86, !6, i64 88, !6, i64 92, !17, i64 96, !6, i64 100, !6, i64 104, !6, i64 108, !12, i64 112, !7, i64 116}
!11 = !{!"_ZTS8ImVectorIfE", !12, i64 0, !12, i64 4, !13, i64 8}
!12 = !{!"int", !7, i64 0}
!13 = !{!"any pointer", !7, i64 0}
!14 = !{!"_ZTS8ImVectorItE", !12, i64 0, !12, i64 4, !13, i64 8}
!15 = !{!"_ZTS8ImVectorI11ImFontGlyphE", !12, i64 0, !12, i64 4, !13, i64 8}
!16 = !{!"short", !7, i64 0}
!17 = !{!"bool", !7, i64 0}


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