; LLVM IR from catid/Zpng :: zstd (zstd_compress)

; 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.ZSTD_compressionParameters = type { i32, i32, i32, i32, i32, i32, i32 }
%struct.ZSTD_parameters = type { %struct.ZSTD_compressionParameters, %struct.ZSTD_frameParameters }
%struct.ZSTD_frameParameters = type { i32, i32, i32 }

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #2

; Function Attrs: nounwind uwtable
declare dso_local void @ZSTD_getCParams(ptr dead_on_unwind noalias writable sret(%struct.ZSTD_compressionParameters) align 4, i32 noundef, i64 noundef, i64 noundef) #3

; Function Attrs: nounwind uwtable
define dso_local void @ZSTD_getParams(ptr dead_on_unwind noalias writable sret(%struct.ZSTD_parameters) align 4 %0, i32 noundef %1, i64 noundef %2, i64 noundef %3) #3 {
  %5 = alloca i32, align 4
  %6 = alloca i64, align 8
  %7 = alloca i64, align 8
  %8 = alloca %struct.ZSTD_compressionParameters, align 4
  store i32 %1, ptr %5, align 4, !tbaa !5
  store i64 %2, ptr %6, align 8, !tbaa !9
  store i64 %3, ptr %7, align 8, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 28, ptr %8) #4
  %9 = load i32, ptr %5, align 4, !tbaa !5
  %10 = load i64, ptr %6, align 8, !tbaa !9
  %11 = load i64, ptr %7, align 8, !tbaa !11
  call void @ZSTD_getCParams(ptr dead_on_unwind writable sret(%struct.ZSTD_compressionParameters) align 4 %8, i32 noundef %9, i64 noundef %10, i64 noundef %11)
  call void @llvm.memset.p0.i64(ptr align 4 %0, i8 0, i64 40, i1 false)
  %12 = getelementptr inbounds %struct.ZSTD_parameters, ptr %0, i32 0, i32 0
  call void @llvm.memcpy.p0.p0.i64(ptr align 4 %12, ptr align 4 %8, i64 28, i1 false), !tbaa.struct !13
  %13 = getelementptr inbounds %struct.ZSTD_parameters, ptr %0, i32 0, i32 1
  %14 = getelementptr inbounds %struct.ZSTD_frameParameters, ptr %13, i32 0, i32 0
  store i32 1, ptr %14, align 4, !tbaa !14
  call void @llvm.lifetime.end.p0(i64 28, ptr %8) #4
  ret void
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { nocallback nofree nounwind willreturn memory(argmem: write) }
attributes #3 = { 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 #4 = { 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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"long long", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"long", !7, i64 0}
!13 = !{i64 0, i64 4, !5, i64 4, i64 4, !5, i64 8, i64 4, !5, i64 12, i64 4, !5, i64 16, i64 4, !5, i64 20, i64 4, !5, i64 24, i64 4, !5}
!14 = !{!15, !6, i64 28}
!15 = !{!"", !16, i64 0, !17, i64 28}
!16 = !{!"", !6, i64 0, !6, i64 4, !6, i64 8, !6, i64 12, !6, i64 16, !6, i64 20, !6, i64 24}
!17 = !{!"", !6, i64 0, !6, i64 4, !6, i64 8}


; 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"

%struct.ZSTD_compressionParameters = type { i32, i32, i32, i32, i32, i32, i32 }
%struct.ZSTD_parameters = type { %struct.ZSTD_compressionParameters, %struct.ZSTD_frameParameters }
%struct.ZSTD_frameParameters = type { i32, i32, i32 }

; Function Attrs: nounwind uwtable
declare dso_local void @ZSTD_getCParams(ptr dead_on_unwind noalias writable sret(%struct.ZSTD_compressionParameters) align 4, i32 noundef, i64 noundef, i64 noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local void @ZSTD_getParams(ptr dead_on_unwind noalias nocapture writable writeonly sret(%struct.ZSTD_parameters) align 4 %0, i32 noundef %1, i64 noundef %2, i64 noundef %3) local_unnamed_addr #0 {
  tail call void @ZSTD_getCParams(ptr dead_on_unwind nonnull writable sret(%struct.ZSTD_compressionParameters) align 4 %0, i32 noundef %1, i64 noundef %2, i64 noundef %3)
  %5 = getelementptr inbounds i8, ptr %0, i64 32
  store i64 0, ptr %5, align 4
  %6 = getelementptr inbounds i8, ptr %0, i64 28
  store i32 1, ptr %6, align 4, !tbaa !5
  ret void
}

attributes #0 = { 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, !8, i64 28}
!6 = !{!"", !7, i64 0, !11, i64 28}
!7 = !{!"", !8, i64 0, !8, i64 4, !8, i64 8, !8, i64 12, !8, i64 16, !8, i64 20, !8, i64 24}
!8 = !{!"int", !9, i64 0}
!9 = !{!"omnipotent char", !10, i64 0}
!10 = !{!"Simple C/C++ TBAA"}
!11 = !{!"", !8, i64 0, !8, i64 4, !8, i64 8}


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