; LLVM IR from introlab/odas :: src/signal (spatialgain)

; 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.spatialgains_obj = type { i32, i32, ptr }

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

; Function Attrs: nounwind allocsize(0)
declare noalias ptr @malloc(i64 noundef) #1

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

; Function Attrs: nounwind uwtable
define dso_local ptr @spatialgains_clone(ptr noundef %0) #2 {
  %2 = alloca ptr, align 8
  %3 = alloca ptr, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #4
  %4 = call noalias ptr @malloc(i64 noundef 16) #5
  store ptr %4, ptr %3, align 8, !tbaa !5
  %5 = load ptr, ptr %2, align 8, !tbaa !5
  %6 = getelementptr inbounds %struct.spatialgains_obj, ptr %5, i32 0, i32 0
  %7 = load i32, ptr %6, align 8, !tbaa !9
  %8 = load ptr, ptr %3, align 8, !tbaa !5
  %9 = getelementptr inbounds %struct.spatialgains_obj, ptr %8, i32 0, i32 0
  store i32 %7, ptr %9, align 8, !tbaa !9
  %10 = load ptr, ptr %2, align 8, !tbaa !5
  %11 = getelementptr inbounds %struct.spatialgains_obj, ptr %10, i32 0, i32 1
  %12 = load i32, ptr %11, align 4, !tbaa !12
  %13 = load ptr, ptr %3, align 8, !tbaa !5
  %14 = getelementptr inbounds %struct.spatialgains_obj, ptr %13, i32 0, i32 1
  store i32 %12, ptr %14, align 4, !tbaa !12
  %15 = load ptr, ptr %2, align 8, !tbaa !5
  %16 = getelementptr inbounds %struct.spatialgains_obj, ptr %15, i32 0, i32 0
  %17 = load i32, ptr %16, align 8, !tbaa !9
  %18 = zext i32 %17 to i64
  %19 = mul i64 4, %18
  %20 = load ptr, ptr %2, align 8, !tbaa !5
  %21 = getelementptr inbounds %struct.spatialgains_obj, ptr %20, i32 0, i32 1
  %22 = load i32, ptr %21, align 4, !tbaa !12
  %23 = zext i32 %22 to i64
  %24 = mul i64 %19, %23
  %25 = call noalias ptr @malloc(i64 noundef %24) #5
  %26 = load ptr, ptr %3, align 8, !tbaa !5
  %27 = getelementptr inbounds %struct.spatialgains_obj, ptr %26, i32 0, i32 2
  store ptr %25, ptr %27, align 8, !tbaa !13
  %28 = load ptr, ptr %3, align 8, !tbaa !5
  %29 = getelementptr inbounds %struct.spatialgains_obj, ptr %28, i32 0, i32 2
  %30 = load ptr, ptr %29, align 8, !tbaa !13
  %31 = load ptr, ptr %2, align 8, !tbaa !5
  %32 = getelementptr inbounds %struct.spatialgains_obj, ptr %31, i32 0, i32 2
  %33 = load ptr, ptr %32, align 8, !tbaa !13
  %34 = load ptr, ptr %2, align 8, !tbaa !5
  %35 = getelementptr inbounds %struct.spatialgains_obj, ptr %34, i32 0, i32 0
  %36 = load i32, ptr %35, align 8, !tbaa !9
  %37 = zext i32 %36 to i64
  %38 = mul i64 4, %37
  %39 = load ptr, ptr %2, align 8, !tbaa !5
  %40 = getelementptr inbounds %struct.spatialgains_obj, ptr %39, i32 0, i32 1
  %41 = load i32, ptr %40, align 4, !tbaa !12
  %42 = zext i32 %41 to i64
  %43 = mul i64 %38, %42
  call void @llvm.memcpy.p0.p0.i64(ptr align 4 %30, ptr align 4 %33, i64 %43, i1 false)
  %44 = load ptr, ptr %3, align 8, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #4
  ret ptr %44
}

; 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) #3

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { nounwind allocsize(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 = { 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 #3 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #4 = { nounwind }
attributes #5 = { nounwind allocsize(0) }

!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/C++ TBAA"}
!9 = !{!10, !11, i64 0}
!10 = !{!"spatialgains_obj", !11, i64 0, !11, i64 4, !6, i64 8}
!11 = !{!"int", !7, i64 0}
!12 = !{!10, !11, i64 4}
!13 = !{!10, !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"

; Function Attrs: mustprogress nofree nounwind willreturn allockind("alloc,uninitialized") allocsize(0) memory(inaccessiblemem: readwrite)
declare noalias noundef ptr @malloc(i64 noundef) local_unnamed_addr #0

; Function Attrs: mustprogress nofree nounwind willreturn uwtable
define dso_local noalias noundef ptr @spatialgains_clone(ptr nocapture noundef readonly %0) local_unnamed_addr #1 {
  %2 = tail call noalias dereferenceable_or_null(16) ptr @malloc(i64 noundef 16) #3
  %3 = load i32, ptr %0, align 8, !tbaa !5
  store i32 %3, ptr %2, align 8, !tbaa !5
  %4 = getelementptr inbounds i8, ptr %0, i64 4
  %5 = load i32, ptr %4, align 4, !tbaa !11
  %6 = getelementptr inbounds i8, ptr %2, i64 4
  store i32 %5, ptr %6, align 4, !tbaa !11
  %7 = zext i32 %3 to i64
  %8 = shl nuw nsw i64 %7, 2
  %9 = zext i32 %5 to i64
  %10 = mul i64 %8, %9
  %11 = tail call noalias ptr @malloc(i64 noundef %10) #3
  %12 = getelementptr inbounds i8, ptr %2, i64 8
  store ptr %11, ptr %12, align 8, !tbaa !12
  %13 = getelementptr inbounds i8, ptr %0, i64 8
  %14 = load ptr, ptr %13, align 8, !tbaa !12
  tail call void @llvm.memcpy.p0.p0.i64(ptr align 4 %11, ptr align 4 %14, i64 %10, i1 false)
  ret ptr %2
}

; Function Attrs: mustprogress 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) #2

attributes #0 = { mustprogress nofree nounwind willreturn allockind("alloc,uninitialized") allocsize(0) memory(inaccessiblemem: readwrite) "alloc-family"="malloc" "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 nofree nounwind willreturn 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 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #3 = { nounwind allocsize(0) }

!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 = !{!"spatialgains_obj", !7, i64 0, !7, i64 4, !10, i64 8}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"any pointer", !8, i64 0}
!11 = !{!6, !7, i64 4}
!12 = !{!6, !10, i64 8}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,ReassociatePass,SROAPass,TailCallElimPass