; LLVM IR from simbody/simbody :: Simbody/Visualizer/simbody-visualizer (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.LodePNG_EncodeSettings = type { %struct.LodeZlib_CompressSettings, i32, i32, i32, i32 }
%struct.LodeZlib_CompressSettings = type { i32, i32, i32 }

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_Z30LodeZlib_CompressSettings_initP25LodeZlib_CompressSettings(ptr noundef) #0

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_Z27LodePNG_EncodeSettings_initP22LodePNG_EncodeSettings(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.LodePNG_EncodeSettings, ptr %3, i32 0, i32 0
  call void @_Z30LodeZlib_CompressSettings_initP25LodeZlib_CompressSettings(ptr noundef %4)
  %5 = load ptr, ptr %2, align 8, !tbaa !5
  %6 = getelementptr inbounds %struct.LodePNG_EncodeSettings, ptr %5, i32 0, i32 1
  store i32 1, ptr %6, align 4, !tbaa !9
  %7 = load ptr, ptr %2, align 8, !tbaa !5
  %8 = getelementptr inbounds %struct.LodePNG_EncodeSettings, ptr %7, i32 0, i32 2
  store i32 0, ptr %8, align 4, !tbaa !13
  %9 = load ptr, ptr %2, align 8, !tbaa !5
  %10 = getelementptr inbounds %struct.LodePNG_EncodeSettings, ptr %9, i32 0, i32 3
  store i32 1, ptr %10, align 4, !tbaa !14
  %11 = load ptr, ptr %2, align 8, !tbaa !5
  %12 = getelementptr inbounds %struct.LodePNG_EncodeSettings, ptr %11, i32 0, i32 4
  store i32 0, ptr %12, align 4, !tbaa !15
  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 12}
!10 = !{!"_ZTS22LodePNG_EncodeSettings", !11, i64 0, !12, i64 12, !12, i64 16, !12, i64 20, !12, i64 24}
!11 = !{!"_ZTS25LodeZlib_CompressSettings", !12, i64 0, !12, i64 4, !12, i64 8}
!12 = !{!"int", !7, i64 0}
!13 = !{!10, !12, i64 16}
!14 = !{!10, !12, i64 20}
!15 = !{!10, !12, 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
declare dso_local void @_Z30LodeZlib_CompressSettings_initP25LodeZlib_CompressSettings(ptr noundef) local_unnamed_addr #0

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_Z27LodePNG_EncodeSettings_initP22LodePNG_EncodeSettings(ptr noundef %0) local_unnamed_addr #0 {
  tail call void @_Z30LodeZlib_CompressSettings_initP25LodeZlib_CompressSettings(ptr noundef %0)
  %2 = getelementptr inbounds i8, ptr %0, i64 12
  store <4 x i32> <i32 1, i32 0, i32 1, i32 0>, ptr %2, align 4, !tbaa !5
  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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}


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