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

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

@.str = external hidden unnamed_addr constant [1 x i8], align 1

; 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 @tracks_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 40) #6
  store ptr %5, ptr %3, align 8, !tbaa !5
  %6 = load ptr, ptr %2, align 8, !tbaa !5
  %7 = getelementptr inbounds %struct.tracks_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.tracks_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.tracks_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.tracks_obj, ptr %17, i32 0, i32 3
  store ptr %16, ptr %18, align 8, !tbaa !12
  %19 = load ptr, ptr %3, align 8, !tbaa !5
  %20 = getelementptr inbounds %struct.tracks_obj, ptr %19, i32 0, i32 3
  %21 = load ptr, ptr %20, align 8, !tbaa !12
  %22 = load ptr, ptr %2, align 8, !tbaa !5
  %23 = getelementptr inbounds %struct.tracks_obj, ptr %22, i32 0, i32 3
  %24 = load ptr, ptr %23, align 8, !tbaa !12
  %25 = load ptr, ptr %2, align 8, !tbaa !5
  %26 = getelementptr inbounds %struct.tracks_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.tracks_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.tracks_obj, ptr %36, i32 0, i32 1
  store ptr %35, ptr %37, align 8, !tbaa !13
  %38 = load ptr, ptr %3, align 8, !tbaa !5
  %39 = getelementptr inbounds %struct.tracks_obj, ptr %38, i32 0, i32 1
  %40 = load ptr, ptr %39, align 8, !tbaa !13
  %41 = load ptr, ptr %2, align 8, !tbaa !5
  %42 = getelementptr inbounds %struct.tracks_obj, ptr %41, i32 0, i32 1
  %43 = load ptr, ptr %42, align 8, !tbaa !13
  %44 = load ptr, ptr %2, align 8, !tbaa !5
  %45 = getelementptr inbounds %struct.tracks_obj, ptr %44, i32 0, i32 0
  %46 = load i32, ptr %45, align 8, !tbaa !9
  %47 = zext i32 %46 to i64
  %48 = mul i64 8, %47
  call void @llvm.memcpy.p0.p0.i64(ptr align 8 %40, ptr align 8 %43, i64 %48, i1 false)
  %49 = load ptr, ptr %2, align 8, !tbaa !5
  %50 = getelementptr inbounds %struct.tracks_obj, ptr %49, i32 0, i32 0
  %51 = load i32, ptr %50, align 8, !tbaa !9
  %52 = zext i32 %51 to i64
  %53 = mul i64 8, %52
  %54 = call noalias ptr @malloc(i64 noundef %53) #6
  %55 = load ptr, ptr %3, align 8, !tbaa !5
  %56 = getelementptr inbounds %struct.tracks_obj, ptr %55, i32 0, i32 2
  store ptr %54, ptr %56, align 8, !tbaa !14
  store i32 0, ptr %4, align 4, !tbaa !15
  br label %57

57:                                               ; preds = %79, %1
  %58 = load i32, ptr %4, align 4, !tbaa !15
  %59 = load ptr, ptr %2, align 8, !tbaa !5
  %60 = getelementptr inbounds %struct.tracks_obj, ptr %59, i32 0, i32 0
  %61 = load i32, ptr %60, align 8, !tbaa !9
  %62 = icmp ult i32 %58, %61
  br i1 %62, label %63, label %82

63:                                               ; preds = %57
  %64 = call noalias ptr @malloc(i64 noundef 256) #6
  %65 = load ptr, ptr %3, align 8, !tbaa !5
  %66 = getelementptr inbounds %struct.tracks_obj, ptr %65, i32 0, i32 2
  %67 = load ptr, ptr %66, align 8, !tbaa !14
  %68 = load i32, ptr %4, align 4, !tbaa !15
  %69 = zext i32 %68 to i64
  %70 = getelementptr inbounds ptr, ptr %67, i64 %69
  store ptr %64, ptr %70, align 8, !tbaa !5
  %71 = load ptr, ptr %3, align 8, !tbaa !5
  %72 = getelementptr inbounds %struct.tracks_obj, ptr %71, i32 0, i32 2
  %73 = load ptr, ptr %72, align 8, !tbaa !14
  %74 = load i32, ptr %4, align 4, !tbaa !15
  %75 = zext i32 %74 to i64
  %76 = getelementptr inbounds ptr, ptr %73, i64 %75
  %77 = load ptr, ptr %76, align 8, !tbaa !5
  %78 = call ptr @strcpy(ptr noundef %77, ptr noundef @.str) #5
  br label %79

79:                                               ; preds = %63
  %80 = load i32, ptr %4, align 4, !tbaa !15
  %81 = add i32 %80, 1
  store i32 %81, ptr %4, align 4, !tbaa !15
  br label %57, !llvm.loop !16

82:                                               ; preds = %57
  %83 = load ptr, ptr %2, align 8, !tbaa !5
  %84 = getelementptr inbounds %struct.tracks_obj, ptr %83, i32 0, i32 0
  %85 = load i32, ptr %84, align 8, !tbaa !9
  %86 = zext i32 %85 to i64
  %87 = mul i64 4, %86
  %88 = call noalias ptr @malloc(i64 noundef %87) #6
  %89 = load ptr, ptr %3, align 8, !tbaa !5
  %90 = getelementptr inbounds %struct.tracks_obj, ptr %89, i32 0, i32 4
  store ptr %88, ptr %90, align 8, !tbaa !18
  %91 = load ptr, ptr %3, align 8, !tbaa !5
  %92 = getelementptr inbounds %struct.tracks_obj, ptr %91, i32 0, i32 4
  %93 = load ptr, ptr %92, align 8, !tbaa !18
  %94 = load ptr, ptr %2, align 8, !tbaa !5
  %95 = getelementptr inbounds %struct.tracks_obj, ptr %94, i32 0, i32 4
  %96 = load ptr, ptr %95, align 8, !tbaa !18
  %97 = load ptr, ptr %2, align 8, !tbaa !5
  %98 = getelementptr inbounds %struct.tracks_obj, ptr %97, i32 0, i32 0
  %99 = load i32, ptr %98, align 8, !tbaa !9
  %100 = zext i32 %99 to i64
  %101 = mul i64 4, %100
  call void @llvm.memcpy.p0.p0.i64(ptr align 4 %93, ptr align 4 %96, i64 %101, i1 false)
  %102 = 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 %102
}

; 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 = !{!"tracks_obj", !11, i64 0, !6, i64 8, !6, i64 16, !6, i64 24, !6, i64 32}
!11 = !{!"int", !7, i64 0}
!12 = !{!10, !6, i64 24}
!13 = !{!10, !6, i64 8}
!14 = !{!10, !6, i64 16}
!15 = !{!11, !11, i64 0}
!16 = distinct !{!16, !17}
!17 = !{!"llvm.loop.mustprogress"}
!18 = !{!10, !6, i64 32}


; 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"

@.str = external hidden unnamed_addr constant [1 x i8], align 1

; 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 @tracks_clone(ptr nocapture noundef readonly %0) local_unnamed_addr #2 {
  %2 = tail call noalias dereferenceable_or_null(40) ptr @malloc(i64 noundef 40) #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 24
  store ptr %6, ptr %7, align 8, !tbaa !11
  %8 = getelementptr inbounds i8, ptr %0, i64 24
  %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
  %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 8 %11, ptr align 8 %14, i64 %10, i1 false)
  %15 = tail call noalias ptr @malloc(i64 noundef %10) #4
  %16 = getelementptr inbounds i8, ptr %2, i64 16
  store ptr %15, ptr %16, align 8, !tbaa !13
  %.not = icmp eq i32 %3, 0
  br i1 %.not, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %1, %.lr.ph
  %indvars.iv = phi i64 [ %indvars.iv.next, %.lr.ph ], [ 0, %1 ]
  %17 = tail call noalias dereferenceable_or_null(256) ptr @malloc(i64 noundef 256) #4
  %18 = getelementptr inbounds ptr, ptr %15, i64 %indvars.iv
  store ptr %17, ptr %18, align 8, !tbaa !14
  %19 = tail call ptr @strcpy(ptr noundef nonnull dereferenceable(1) %17, ptr noundef nonnull dereferenceable(1) @.str) #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 %.lr.ph, !llvm.loop !15

._crit_edge:                                      ; preds = %.lr.ph, %1
  %20 = shl nuw nsw i64 %4, 2
  %21 = tail call noalias ptr @malloc(i64 noundef %20) #4
  %22 = getelementptr inbounds i8, ptr %2, i64 32
  store ptr %21, ptr %22, align 8, !tbaa !17
  %23 = getelementptr inbounds i8, ptr %0, i64 32
  %24 = load ptr, ptr %23, align 8, !tbaa !17
  tail call void @llvm.memcpy.p0.p0.i64(ptr align 4 %21, ptr align 4 %24, i64 %20, 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) #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 = !{!"tracks_obj", !7, i64 0, !10, i64 8, !10, i64 16, !10, i64 24, !10, i64 32}
!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 24}
!12 = !{!6, !10, i64 8}
!13 = !{!6, !10, i64 16}
!14 = !{!10, !10, i64 0}
!15 = distinct !{!15, !16}
!16 = !{!"llvm.loop.mustprogress"}
!17 = !{!6, !10, i64 32}


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