; LLVM IR from jgaeddert/liquid-dsp :: src/framing/src (framing_crcf)

; 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.bsync_crcf_s = type { i32, ptr, ptr, ptr, ptr, { float, float } }

; Function Attrs: nounwind uwtable
define dso_local ptr @bsync_crcf_create(i32 noundef %0, ptr noundef %1) #0 {
  %3 = alloca i32, align 4
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  store i32 %0, ptr %3, align 4, !tbaa !5
  store ptr %1, ptr %4, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #4
  %7 = call noalias ptr @malloc(i64 noundef 48) #5
  store ptr %7, ptr %5, align 8, !tbaa !9
  %8 = load i32, ptr %3, align 4, !tbaa !5
  %9 = load ptr, ptr %5, align 8, !tbaa !9
  %10 = getelementptr inbounds %struct.bsync_crcf_s, ptr %9, i32 0, i32 0
  store i32 %8, ptr %10, align 8, !tbaa !11
  %11 = load ptr, ptr %5, align 8, !tbaa !9
  %12 = getelementptr inbounds %struct.bsync_crcf_s, ptr %11, i32 0, i32 0
  %13 = load i32, ptr %12, align 8, !tbaa !11
  %14 = call ptr @bsequence_create(i32 noundef %13)
  %15 = load ptr, ptr %5, align 8, !tbaa !9
  %16 = getelementptr inbounds %struct.bsync_crcf_s, ptr %15, i32 0, i32 1
  store ptr %14, ptr %16, align 8, !tbaa !13
  %17 = load ptr, ptr %5, align 8, !tbaa !9
  %18 = getelementptr inbounds %struct.bsync_crcf_s, ptr %17, i32 0, i32 0
  %19 = load i32, ptr %18, align 8, !tbaa !11
  %20 = call ptr @bsequence_create(i32 noundef %19)
  %21 = load ptr, ptr %5, align 8, !tbaa !9
  %22 = getelementptr inbounds %struct.bsync_crcf_s, ptr %21, i32 0, i32 2
  store ptr %20, ptr %22, align 8, !tbaa !14
  %23 = load ptr, ptr %5, align 8, !tbaa !9
  %24 = getelementptr inbounds %struct.bsync_crcf_s, ptr %23, i32 0, i32 0
  %25 = load i32, ptr %24, align 8, !tbaa !11
  %26 = call ptr @bsequence_create(i32 noundef %25)
  %27 = load ptr, ptr %5, align 8, !tbaa !9
  %28 = getelementptr inbounds %struct.bsync_crcf_s, ptr %27, i32 0, i32 4
  store ptr %26, ptr %28, align 8, !tbaa !15
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #4
  store i32 0, ptr %6, align 4, !tbaa !5
  br label %29

29:                                               ; preds = %47, %2
  %30 = load i32, ptr %6, align 4, !tbaa !5
  %31 = load ptr, ptr %5, align 8, !tbaa !9
  %32 = getelementptr inbounds %struct.bsync_crcf_s, ptr %31, i32 0, i32 0
  %33 = load i32, ptr %32, align 8, !tbaa !11
  %34 = icmp ult i32 %30, %33
  br i1 %34, label %35, label %50

35:                                               ; preds = %29
  %36 = load ptr, ptr %5, align 8, !tbaa !9
  %37 = getelementptr inbounds %struct.bsync_crcf_s, ptr %36, i32 0, i32 1
  %38 = load ptr, ptr %37, align 8, !tbaa !13
  %39 = load ptr, ptr %4, align 8, !tbaa !9
  %40 = load i32, ptr %6, align 4, !tbaa !5
  %41 = zext i32 %40 to i64
  %42 = getelementptr inbounds float, ptr %39, i64 %41
  %43 = load float, ptr %42, align 4, !tbaa !16
  %44 = fcmp ogt float %43, 0.000000e+00
  %45 = zext i1 %44 to i32
  %46 = call i32 @bsequence_push(ptr noundef %38, i32 noundef %45)
  br label %47

47:                                               ; preds = %35
  %48 = load i32, ptr %6, align 4, !tbaa !5
  %49 = add i32 %48, 1
  store i32 %49, ptr %6, align 4, !tbaa !5
  br label %29, !llvm.loop !18

50:                                               ; preds = %29
  %51 = load ptr, ptr %5, align 8, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #4
  ret ptr %51
}

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nounwind allocsize(0)
declare noalias ptr @malloc(i64 noundef) #2

declare ptr @bsequence_create(i32 noundef) #3

declare i32 @bsequence_push(ptr noundef, i32 noundef) #3

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

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" }
attributes #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { 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 #3 = { "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 }
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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"any pointer", !7, i64 0}
!11 = !{!12, !6, i64 0}
!12 = !{!"bsync_crcf_s", !6, i64 0, !10, i64 8, !10, i64 16, !10, i64 24, !10, i64 32, !7, i64 40}
!13 = !{!12, !10, i64 8}
!14 = !{!12, !10, i64 16}
!15 = !{!12, !10, i64 32}
!16 = !{!17, !17, i64 0}
!17 = !{!"float", !7, i64 0}
!18 = distinct !{!18, !19}
!19 = !{!"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: nounwind uwtable
define dso_local noalias noundef ptr @bsync_crcf_create(i32 noundef %0, ptr nocapture noundef readonly %1) local_unnamed_addr #0 {
  %3 = tail call noalias dereferenceable_or_null(48) ptr @malloc(i64 noundef 48) #3
  store i32 %0, ptr %3, align 8, !tbaa !5
  %4 = tail call ptr @bsequence_create(i32 noundef %0) #4
  %5 = getelementptr inbounds i8, ptr %3, i64 8
  store ptr %4, ptr %5, align 8, !tbaa !11
  %6 = tail call ptr @bsequence_create(i32 noundef %0) #4
  %7 = getelementptr inbounds i8, ptr %3, i64 16
  store ptr %6, ptr %7, align 8, !tbaa !12
  %8 = tail call ptr @bsequence_create(i32 noundef %0) #4
  %9 = getelementptr inbounds i8, ptr %3, i64 32
  store ptr %8, ptr %9, align 8, !tbaa !13
  %.not = icmp eq i32 %0, 0
  br i1 %.not, label %._crit_edge, label %.lr.ph.preheader

.lr.ph.preheader:                                 ; preds = %2
  %wide.trip.count = zext i32 %0 to i64
  br label %.lr.ph

.lr.ph:                                           ; preds = %.lr.ph.preheader, %.lr.ph
  %indvars.iv = phi i64 [ 0, %.lr.ph.preheader ], [ %indvars.iv.next, %.lr.ph ]
  %10 = getelementptr inbounds float, ptr %1, i64 %indvars.iv
  %11 = load float, ptr %10, align 4, !tbaa !14
  %12 = fcmp ogt float %11, 0.000000e+00
  %13 = zext i1 %12 to i32
  %14 = tail call i32 @bsequence_push(ptr noundef %4, i32 noundef %13) #4
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %exitcond.not = icmp eq i64 %indvars.iv.next, %wide.trip.count
  br i1 %exitcond.not, label %._crit_edge, label %.lr.ph, !llvm.loop !16

._crit_edge:                                      ; preds = %.lr.ph, %2
  ret ptr %3
}

; Function Attrs: mustprogress nofree nounwind willreturn allockind("alloc,uninitialized") allocsize(0) memory(inaccessiblemem: readwrite)
declare noalias noundef ptr @malloc(i64 noundef) local_unnamed_addr #1

declare ptr @bsequence_create(i32 noundef) local_unnamed_addr #2

declare i32 @bsequence_push(ptr noundef, i32 noundef) local_unnamed_addr #2

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" }
attributes #1 = { 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 #2 = { "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 allocsize(0) }
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, !7, i64 0}
!6 = !{!"bsync_crcf_s", !7, i64 0, !10, i64 8, !10, i64 16, !10, i64 24, !10, i64 32, !8, i64 40}
!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 8}
!12 = !{!6, !10, i64 16}
!13 = !{!6, !10, i64 32}
!14 = !{!15, !15, i64 0}
!15 = !{!"float", !8, i64 0}
!16 = distinct !{!16, !17}
!17 = !{!"llvm.loop.mustprogress"}


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