; LLVM IR from facebookresearch/habitat-sim :: src/deps/basis-universal/encoder (lodepng)

; 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.LodePNGColorMode = type { i32, i32, ptr, i64, i32, i32, i32, i32 }

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_Z23lodepng_color_mode_initP16LodePNGColorMode(ptr noundef %0) #0 {
  %2 = alloca ptr, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  %3 = load ptr, ptr %2, align 8, !tbaa !5
  %4 = getelementptr inbounds %struct.LodePNGColorMode, ptr %3, i32 0, i32 4
  store i32 0, ptr %4, align 8, !tbaa !9
  %5 = load ptr, ptr %2, align 8, !tbaa !5
  %6 = getelementptr inbounds %struct.LodePNGColorMode, ptr %5, i32 0, i32 7
  store i32 0, ptr %6, align 4, !tbaa !14
  %7 = load ptr, ptr %2, align 8, !tbaa !5
  %8 = getelementptr inbounds %struct.LodePNGColorMode, ptr %7, i32 0, i32 6
  store i32 0, ptr %8, align 8, !tbaa !15
  %9 = load ptr, ptr %2, align 8, !tbaa !5
  %10 = getelementptr inbounds %struct.LodePNGColorMode, ptr %9, i32 0, i32 5
  store i32 0, ptr %10, align 4, !tbaa !16
  %11 = load ptr, ptr %2, align 8, !tbaa !5
  %12 = getelementptr inbounds %struct.LodePNGColorMode, ptr %11, i32 0, i32 0
  store i32 6, ptr %12, align 8, !tbaa !17
  %13 = load ptr, ptr %2, align 8, !tbaa !5
  %14 = getelementptr inbounds %struct.LodePNGColorMode, ptr %13, i32 0, i32 1
  store i32 8, ptr %14, align 4, !tbaa !18
  %15 = load ptr, ptr %2, align 8, !tbaa !5
  %16 = getelementptr inbounds %struct.LodePNGColorMode, ptr %15, i32 0, i32 2
  store ptr null, ptr %16, align 8, !tbaa !19
  %17 = load ptr, ptr %2, align 8, !tbaa !5
  %18 = getelementptr inbounds %struct.LodePNGColorMode, ptr %17, i32 0, i32 3
  store i64 0, ptr %18, align 8, !tbaa !20
  ret void
}

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" }

!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, !12, i64 24}
!10 = !{!"_ZTS16LodePNGColorMode", !11, i64 0, !12, i64 4, !6, i64 8, !13, i64 16, !12, i64 24, !12, i64 28, !12, i64 32, !12, i64 36}
!11 = !{!"_ZTS16LodePNGColorType", !7, i64 0}
!12 = !{!"int", !7, i64 0}
!13 = !{!"long", !7, i64 0}
!14 = !{!10, !12, i64 36}
!15 = !{!10, !12, i64 32}
!16 = !{!10, !12, i64 28}
!17 = !{!10, !11, i64 0}
!18 = !{!10, !12, i64 4}
!19 = !{!10, !6, i64 8}
!20 = !{!10, !13, i64 16}


; 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(argmem: write) uwtable
define dso_local void @_Z23lodepng_color_mode_initP16LodePNGColorMode(ptr nocapture noundef writeonly %0) local_unnamed_addr #0 {
  %2 = getelementptr inbounds i8, ptr %0, i64 24
  tail call void @llvm.memset.p0.i64(ptr noundef nonnull align 8 dereferenceable(16) %2, i8 0, i64 16, i1 false)
  store i32 6, ptr %0, align 8, !tbaa !5
  %3 = getelementptr inbounds i8, ptr %0, i64 4
  store i32 8, ptr %3, align 4, !tbaa !13
  %4 = getelementptr inbounds i8, ptr %0, i64 8
  tail call void @llvm.memset.p0.i64(ptr noundef nonnull align 8 dereferenceable(16) %4, 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) #1

attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: write) 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, !7, i64 0}
!6 = !{!"_ZTS16LodePNGColorMode", !7, i64 0, !10, i64 4, !11, i64 8, !12, i64 16, !10, i64 24, !10, i64 28, !10, i64 32, !10, i64 36}
!7 = !{!"_ZTS16LodePNGColorType", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"int", !8, i64 0}
!11 = !{!"any pointer", !8, i64 0}
!12 = !{!"long", !8, i64 0}
!13 = !{!6, !10, i64 4}


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