; LLVM IR from Eukky/TRender :: lib/imgui/imgui_draw.ll (ZN11ImFontAtlas12ClearTexDataEv)

; 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.ImFontAtlas = type <{ i32, [4 x i8], ptr, i32, i32, ptr, ptr, i32, i32, %struct.ImVec2, %struct.ImVec2, %class.ImVector.8, %class.ImVector.9, %class.ImVector.10, [1 x i32], [4 x i8] }>
%struct.ImVec2 = type { float, float }
%class.ImVector.8 = type { i32, i32, ptr }
%class.ImVector.9 = type { i32, i32, ptr }
%class.ImVector.10 = type { i32, i32, ptr }

declare void @_ZN5ImGui7MemFreeEPv(ptr noundef) #0

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN11ImFontAtlas12ClearTexDataEv(ptr noundef nonnull align 8 dereferenceable(116) %0) #1 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.ImFontAtlas, ptr %3, i32 0, i32 5
  %5 = load ptr, ptr %4, align 8, !tbaa !9
  %6 = icmp ne ptr %5, null
  br i1 %6, label %7, label %10

7:                                                ; preds = %1
  %8 = getelementptr inbounds %struct.ImFontAtlas, ptr %3, i32 0, i32 5
  %9 = load ptr, ptr %8, align 8, !tbaa !9
  call void @_ZN5ImGui7MemFreeEPv(ptr noundef %9)
  br label %10

10:                                               ; preds = %7, %1
  %11 = getelementptr inbounds %struct.ImFontAtlas, ptr %3, i32 0, i32 6
  %12 = load ptr, ptr %11, align 8, !tbaa !17
  %13 = icmp ne ptr %12, null
  br i1 %13, label %14, label %17

14:                                               ; preds = %10
  %15 = getelementptr inbounds %struct.ImFontAtlas, ptr %3, i32 0, i32 6
  %16 = load ptr, ptr %15, align 8, !tbaa !17
  call void @_ZN5ImGui7MemFreeEPv(ptr noundef %16)
  br label %17

17:                                               ; preds = %14, %10
  %18 = getelementptr inbounds %struct.ImFontAtlas, ptr %3, i32 0, i32 5
  store ptr null, ptr %18, align 8, !tbaa !9
  %19 = getelementptr inbounds %struct.ImFontAtlas, ptr %3, i32 0, i32 6
  store ptr null, ptr %19, align 8, !tbaa !17
  ret void
}

attributes #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 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, !6, i64 24}
!10 = !{!"_ZTS11ImFontAtlas", !11, i64 0, !6, i64 8, !11, i64 16, !11, i64 20, !6, i64 24, !6, i64 32, !11, i64 40, !11, i64 44, !12, i64 48, !12, i64 56, !14, i64 64, !15, i64 80, !16, i64 96, !7, i64 112}
!11 = !{!"int", !7, i64 0}
!12 = !{!"_ZTS6ImVec2", !13, i64 0, !13, i64 4}
!13 = !{!"float", !7, i64 0}
!14 = !{!"_ZTS8ImVectorIP6ImFontE", !11, i64 0, !11, i64 4, !6, i64 8}
!15 = !{!"_ZTS8ImVectorIN11ImFontAtlas10CustomRectEE", !11, i64 0, !11, i64 4, !6, i64 8}
!16 = !{!"_ZTS8ImVectorI12ImFontConfigE", !11, i64 0, !11, i64 4, !6, i64 8}
!17 = !{!10, !6, 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"

declare void @_ZN5ImGui7MemFreeEPv(ptr noundef) local_unnamed_addr #0

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN11ImFontAtlas12ClearTexDataEv(ptr nocapture noundef nonnull align 8 dereferenceable(116) %0) local_unnamed_addr #1 align 2 {
  %2 = getelementptr inbounds i8, ptr %0, i64 24
  %3 = load ptr, ptr %2, align 8, !tbaa !5
  %.not = icmp eq ptr %3, null
  br i1 %.not, label %5, label %4

4:                                                ; preds = %1
  tail call void @_ZN5ImGui7MemFreeEPv(ptr noundef nonnull %3)
  br label %5

5:                                                ; preds = %4, %1
  %6 = getelementptr inbounds i8, ptr %0, i64 32
  %7 = load ptr, ptr %6, align 8, !tbaa !16
  %.not2 = icmp eq ptr %7, null
  br i1 %.not2, label %9, label %8

8:                                                ; preds = %5
  tail call void @_ZN5ImGui7MemFreeEPv(ptr noundef nonnull %7)
  br label %9

9:                                                ; preds = %8, %5
  tail call void @llvm.memset.p0.i64(ptr noundef nonnull align 8 dereferenceable(16) %2, i8 0, i64 16, i1 false)
  ret void
}

; 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 = { "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 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 = { 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, !10, i64 24}
!6 = !{!"_ZTS11ImFontAtlas", !7, i64 0, !10, i64 8, !7, i64 16, !7, i64 20, !10, i64 24, !10, i64 32, !7, i64 40, !7, i64 44, !11, i64 48, !11, i64 56, !13, i64 64, !14, i64 80, !15, i64 96, !8, i64 112}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"any pointer", !8, i64 0}
!11 = !{!"_ZTS6ImVec2", !12, i64 0, !12, i64 4}
!12 = !{!"float", !8, i64 0}
!13 = !{!"_ZTS8ImVectorIP6ImFontE", !7, i64 0, !7, i64 4, !10, i64 8}
!14 = !{!"_ZTS8ImVectorIN11ImFontAtlas10CustomRectEE", !7, i64 0, !7, i64 4, !10, i64 8}
!15 = !{!"_ZTS8ImVectorI12ImFontConfigE", !7, i64 0, !7, i64 4, !10, i64 8}
!16 = !{!6, !10, i64 32}


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