; LLVM IR from steps3d/graphics-book :: Code/Core/Texture.ll (ZN7TextureC2Eb)

; 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.Texture = type { i32, i32, i32, i32, i32, i8, i32, %"class.std::__cxx11::basic_string" }
%"class.std::__cxx11::basic_string" = type { %"struct.std::__cxx11::basic_string<char>::_Alloc_hider", i64, %union.anon }
%"struct.std::__cxx11::basic_string<char>::_Alloc_hider" = type { ptr }
%union.anon = type { i64, [8 x i8] }

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_ZN7TextureC2Eb(ptr noundef nonnull align 8 dereferenceable(64) %0, i1 noundef zeroext %1) unnamed_addr #0 align 2 {
  %3 = alloca ptr, align 8
  %4 = alloca i8, align 1
  store ptr %0, ptr %3, align 8, !tbaa !5
  %5 = zext i1 %1 to i8
  store i8 %5, ptr %4, align 1, !tbaa !9
  %6 = load ptr, ptr %3, align 8
  %7 = getelementptr inbounds %class.Texture, ptr %6, i32 0, i32 7
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %7) #1
  %8 = getelementptr inbounds %class.Texture, ptr %6, i32 0, i32 0
  store i32 0, ptr %8, align 8, !tbaa !11
  %9 = getelementptr inbounds %class.Texture, ptr %6, i32 0, i32 1
  store i32 0, ptr %9, align 4, !tbaa !17
  %10 = getelementptr inbounds %class.Texture, ptr %6, i32 0, i32 2
  store i32 0, ptr %10, align 8, !tbaa !18
  %11 = getelementptr inbounds %class.Texture, ptr %6, i32 0, i32 3
  store i32 0, ptr %11, align 4, !tbaa !19
  %12 = getelementptr inbounds %class.Texture, ptr %6, i32 0, i32 4
  store i32 0, ptr %12, align 8, !tbaa !20
  %13 = load i8, ptr %4, align 1, !tbaa !9, !range !21, !noundef !22
  %14 = trunc i8 %13 to i1
  %15 = getelementptr inbounds %class.Texture, ptr %6, i32 0, i32 5
  %16 = zext i1 %14 to i8
  store i8 %16, ptr %15, align 4, !tbaa !23
  %17 = getelementptr inbounds %class.Texture, ptr %6, i32 0, i32 6
  store i32 -1, ptr %17, align 8, !tbaa !24
  ret void
}

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #0 align 2

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 = { nounwind }

!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 = !{!"bool", !7, i64 0}
!11 = !{!12, !13, i64 0}
!12 = !{!"_ZTS7Texture", !13, i64 0, !13, i64 4, !13, i64 8, !13, i64 12, !13, i64 16, !10, i64 20, !13, i64 24, !14, i64 32}
!13 = !{!"int", !7, i64 0}
!14 = !{!"_ZTSNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE", !15, i64 0, !16, i64 8, !7, i64 16}
!15 = !{!"_ZTSNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE12_Alloc_hiderE", !6, i64 0}
!16 = !{!"long", !7, i64 0}
!17 = !{!12, !13, i64 4}
!18 = !{!12, !13, i64 8}
!19 = !{!12, !13, i64 12}
!20 = !{!12, !13, i64 16}
!21 = !{i8 0, i8 2}
!22 = !{}
!23 = !{!12, !10, i64 20}
!24 = !{!12, !13, i64 24}


; 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 nounwind uwtable
define dso_local void @_ZN7TextureC2Eb(ptr noundef nonnull align 8 dereferenceable(64) %0, i1 noundef zeroext %1) unnamed_addr #0 align 2 {
  %3 = zext i1 %1 to i8
  %4 = getelementptr inbounds i8, ptr %0, i64 32
  tail call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %4) #2
  %5 = getelementptr inbounds i8, ptr %0, i64 20
  tail call void @llvm.memset.p0.i64(ptr noundef nonnull align 8 dereferenceable(20) %0, i8 0, i64 20, i1 false)
  store i8 %3, ptr %5, align 4, !tbaa !5
  %6 = getelementptr inbounds i8, ptr %0, i64 24
  store i32 -1, ptr %6, align 8, !tbaa !15
  ret void
}

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32)) 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 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) }
attributes #2 = { nounwind }

!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 20}
!6 = !{!"_ZTS7Texture", !7, i64 0, !7, i64 4, !7, i64 8, !7, i64 12, !7, i64 16, !10, i64 20, !7, i64 24, !11, i64 32}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"bool", !8, i64 0}
!11 = !{!"_ZTSNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE", !12, i64 0, !14, i64 8, !8, i64 16}
!12 = !{!"_ZTSNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE12_Alloc_hiderE", !13, i64 0}
!13 = !{!"any pointer", !8, i64 0}
!14 = !{!"long", !8, i64 0}
!15 = !{!6, !7, i64 24}


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