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

; 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.targets_obj = type { i32, ptr, 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: nounwind
declare ptr @strcpy(ptr noundef, ptr noundef) #2

; 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 @targets_clone(ptr noundef %0) #3 {
  %2 = alloca ptr, align 8
  %3 = alloca ptr, align 8
  %4 = alloca i32, align 4
  store ptr %0, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #5
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #5
  %5 = call noalias ptr @malloc(i64 noundef 24) #6
  store ptr %5, ptr %3, align 8, !tbaa !5
  %6 = load ptr, ptr %2, align 8, !tbaa !5
  %7 = getelementptr inbounds %struct.targets_obj, ptr %6, i32 0, i32 0
  %8 = load i32, ptr %7, align 8, !tbaa !9
  %9 = load ptr, ptr %3, align 8, !tbaa !5
  %10 = getelementptr inbounds %struct.targets_obj, ptr %9, i32 0, i32 0
  store i32 %8, ptr %10, align 8, !tbaa !9
  %11 = load ptr, ptr %2, align 8, !tbaa !5
  %12 = getelementptr inbounds %struct.targets_obj, ptr %11, i32 0, i32 0
  %13 = load i32, ptr %12, align 8, !tbaa !9
  %14 = zext i32 %13 to i64
  %15 = mul i64 12, %14
  %16 = call noalias ptr @malloc(i64 noundef %15) #6
  %17 = load ptr, ptr %3, align 8, !tbaa !5
  %18 = getelementptr inbounds %struct.targets_obj, ptr %17, i32 0, i32 2
  store ptr %16, ptr %18, align 8, !tbaa !12
  %19 = load ptr, ptr %3, align 8, !tbaa !5
  %20 = getelementptr inbounds %struct.targets_obj, ptr %19, i32 0, i32 2
  %21 = load ptr, ptr %20, align 8, !tbaa !12
  %22 = load ptr, ptr %2, align 8, !tbaa !5
  %23 = getelementptr inbounds %struct.targets_obj, ptr %22, i32 0, i32 2
  %24 = load ptr, ptr %23, align 8, !tbaa !12
  %25 = load ptr, ptr %2, align 8, !tbaa !5
  %26 = getelementptr inbounds %struct.targets_obj, ptr %25, i32 0, i32 0
  %27 = load i32, ptr %26, align 8, !tbaa !9
  %28 = zext i32 %27 to i64
  %29 = mul i64 12, %28
  call void @llvm.memcpy.p0.p0.i64(ptr align 4 %21, ptr align 4 %24, i64 %29, i1 false)
  %30 = load ptr, ptr %2, align 8, !tbaa !5
  %31 = getelementptr inbounds %struct.targets_obj, ptr %30, i32 0, i32 0
  %32 = load i32, ptr %31, align 8, !tbaa !9
  %33 = zext i32 %32 to i64
  %34 = mul i64 8, %33
  %35 = call noalias ptr @malloc(i64 noundef %34) #6
  %36 = load ptr, ptr %3, align 8, !tbaa !5
  %37 = getelementptr inbounds %struct.targets_obj, ptr %36, i32 0, i32 1
  store ptr %35, ptr %37, align 8, !tbaa !13
  store i32 0, ptr %4, align 4, !tbaa !14
  br label %38

38:                                               ; preds = %67, %1
  %39 = load i32, ptr %4, align 4, !tbaa !14
  %40 = load ptr, ptr %2, align 8, !tbaa !5
  %41 = getelementptr inbounds %struct.targets_obj, ptr %40, i32 0, i32 0
  %42 = load i32, ptr %41, align 8, !tbaa !9
  %43 = icmp ult i32 %39, %42
  br i1 %43, label %44, label %70

44:                                               ; preds = %38
  %45 = call noalias ptr @malloc(i64 noundef 256) #6
  %46 = load ptr, ptr %3, align 8, !tbaa !5
  %47 = getelementptr inbounds %struct.targets_obj, ptr %46, i32 0, i32 1
  %48 = load ptr, ptr %47, align 8, !tbaa !13
  %49 = load i32, ptr %4, align 4, !tbaa !14
  %50 = zext i32 %49 to i64
  %51 = getelementptr inbounds ptr, ptr %48, i64 %50
  store ptr %45, ptr %51, align 8, !tbaa !5
  %52 = load ptr, ptr %3, align 8, !tbaa !5
  %53 = getelementptr inbounds %struct.targets_obj, ptr %52, i32 0, i32 1
  %54 = load ptr, ptr %53, align 8, !tbaa !13
  %55 = load i32, ptr %4, align 4, !tbaa !14
  %56 = zext i32 %55 to i64
  %57 = getelementptr inbounds ptr, ptr %54, i64 %56
  %58 = load ptr, ptr %57, align 8, !tbaa !5
  %59 = load ptr, ptr %2, align 8, !tbaa !5
  %60 = getelementptr inbounds %struct.targets_obj, ptr %59, i32 0, i32 1
  %61 = load ptr, ptr %60, align 8, !tbaa !13
  %62 = load i32, ptr %4, align 4, !tbaa !14
  %63 = zext i32 %62 to i64
  %64 = getelementptr inbounds ptr, ptr %61, i64 %63
  %65 = load ptr, ptr %64, align 8, !tbaa !5
  %66 = call ptr @strcpy(ptr noundef %58, ptr noundef %65) #5
  br label %67

67:                                               ; preds = %44
  %68 = load i32, ptr %4, align 4, !tbaa !14
  %69 = add i32 %68, 1
  store i32 %69, ptr %4, align 4, !tbaa !14
  br label %38, !llvm.loop !15

70:                                               ; preds = %38
  %71 = load ptr, ptr %3, align 8, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #5
  ret ptr %71
}

; 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) #4

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 "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 = { 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 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #5 = { nounwind }
attributes #6 = { 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 = !{!"targets_obj", !11, i64 0, !6, i64 8, !6, i64 16}
!11 = !{!"int", !7, i64 0}
!12 = !{!10, !6, i64 16}
!13 = !{!10, !6, i64 8}
!14 = !{!11, !11, i64 0}
!15 = distinct !{!15, !16}
!16 = !{!"llvm.loop.mustprogress"}


; 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 memory(argmem: readwrite)
declare ptr @strcpy(ptr noalias noundef returned writeonly, ptr noalias nocapture noundef readonly) local_unnamed_addr #1

; Function Attrs: nofree nounwind uwtable
define dso_local noalias noundef ptr @targets_clone(ptr nocapture noundef readonly %0) local_unnamed_addr #2 {
  %2 = tail call noalias dereferenceable_or_null(24) ptr @malloc(i64 noundef 24) #4
  %3 = load i32, ptr %0, align 8, !tbaa !5
  store i32 %3, ptr %2, align 8, !tbaa !5
  %4 = zext i32 %3 to i64
  %5 = mul nuw nsw i64 %4, 12
  %6 = tail call noalias ptr @malloc(i64 noundef %5) #4
  %7 = getelementptr inbounds i8, ptr %2, i64 16
  store ptr %6, ptr %7, align 8, !tbaa !11
  %8 = getelementptr inbounds i8, ptr %0, i64 16
  %9 = load ptr, ptr %8, align 8, !tbaa !11
  tail call void @llvm.memcpy.p0.p0.i64(ptr align 4 %6, ptr align 4 %9, i64 %5, i1 false)
  %10 = shl nuw nsw i64 %4, 3
  %11 = tail call noalias ptr @malloc(i64 noundef %10) #4
  %12 = getelementptr inbounds i8, ptr %2, i64 8
  store ptr %11, ptr %12, align 8, !tbaa !12
  %.not = icmp eq i32 %3, 0
  br i1 %.not, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %1
  %13 = getelementptr inbounds i8, ptr %0, i64 8
  %14 = load ptr, ptr %13, align 8, !tbaa !12
  br label %15

15:                                               ; preds = %.lr.ph, %15
  %indvars.iv = phi i64 [ 0, %.lr.ph ], [ %indvars.iv.next, %15 ]
  %16 = tail call noalias dereferenceable_or_null(256) ptr @malloc(i64 noundef 256) #4
  %17 = getelementptr inbounds ptr, ptr %11, i64 %indvars.iv
  store ptr %16, ptr %17, align 8, !tbaa !13
  %18 = getelementptr inbounds ptr, ptr %14, i64 %indvars.iv
  %19 = load ptr, ptr %18, align 8, !tbaa !13
  %20 = tail call ptr @strcpy(ptr noundef nonnull dereferenceable(1) %16, ptr noundef nonnull dereferenceable(1) %19) #5
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %exitcond.not = icmp eq i64 %indvars.iv.next, %4
  br i1 %exitcond.not, label %._crit_edge, label %15, !llvm.loop !14

._crit_edge:                                      ; preds = %15, %1
  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) #3

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 memory(argmem: readwrite) "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 = { nofree 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 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #4 = { nounwind allocsize(0) }
attributes #5 = { 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, !7, i64 0}
!6 = !{!"targets_obj", !7, i64 0, !10, i64 8, !10, i64 16}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"any pointer", !8, i64 0}
!11 = !{!6, !10, i64 16}
!12 = !{!6, !10, i64 8}
!13 = !{!10, !10, i64 0}
!14 = distinct !{!14, !15}
!15 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GVNPass,GlobalOptPass,IPSCCPPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LICMPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass