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

; 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.bpacketsync_s = type { i32, i32, i32, i32, i32, i32, i32, i32, i32, ptr, ptr, ptr, [6 x i8], [12 x i8], ptr, ptr, ptr, ptr, ptr, i32, i32, i32, i8, i8, i32, i32, ptr, ptr, %struct.framesyncstats_s }
%struct.framesyncstats_s = type { float, float, float, ptr, i32, i32, i32, 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 nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nounwind uwtable
define dso_local i32 @bpacketsync_execute_seekpn(ptr noundef %0, i8 noundef zeroext %1) #1 {
  %3 = alloca ptr, align 8
  %4 = alloca i8, align 1
  %5 = alloca i32, align 4
  %6 = alloca float, align 4
  store ptr %0, ptr %3, align 8, !tbaa !5
  store i8 %1, ptr %4, align 1, !tbaa !9
  %7 = load ptr, ptr %3, align 8, !tbaa !5
  %8 = getelementptr inbounds %struct.bpacketsync_s, ptr %7, i32 0, i32 18
  %9 = load ptr, ptr %8, align 8, !tbaa !10
  %10 = load i8, ptr %4, align 1, !tbaa !9
  %11 = zext i8 %10 to i32
  %12 = call i32 @bsequence_push(ptr noundef %9, i32 noundef %11)
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #4
  %13 = load ptr, ptr %3, align 8, !tbaa !5
  %14 = getelementptr inbounds %struct.bpacketsync_s, ptr %13, i32 0, i32 17
  %15 = load ptr, ptr %14, align 8, !tbaa !15
  %16 = load ptr, ptr %3, align 8, !tbaa !5
  %17 = getelementptr inbounds %struct.bpacketsync_s, ptr %16, i32 0, i32 18
  %18 = load ptr, ptr %17, align 8, !tbaa !10
  %19 = call i32 @bsequence_correlate(ptr noundef %15, ptr noundef %18)
  store i32 %19, ptr %5, align 4, !tbaa !16
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #4
  %20 = load i32, ptr %5, align 4, !tbaa !16
  %21 = sitofp i32 %20 to float
  %22 = fmul float 2.000000e+00, %21
  %23 = load ptr, ptr %3, align 8, !tbaa !5
  %24 = getelementptr inbounds %struct.bpacketsync_s, ptr %23, i32 0, i32 1
  %25 = load i32, ptr %24, align 4, !tbaa !17
  %26 = mul i32 %25, 8
  %27 = uitofp i32 %26 to float
  %28 = fdiv float %22, %27
  %29 = fsub float %28, 1.000000e+00
  store float %29, ptr %6, align 4, !tbaa !18
  %30 = load float, ptr %6, align 4, !tbaa !18
  %31 = call float @llvm.fabs.f32(float %30)
  %32 = fcmp ogt float %31, 0x3FE99999A0000000
  br i1 %32, label %33, label %43

33:                                               ; preds = %2
  %34 = load float, ptr %6, align 4, !tbaa !18
  %35 = fcmp ogt float %34, 0.000000e+00
  %36 = zext i1 %35 to i64
  %37 = select i1 %35, i32 0, i32 255
  %38 = trunc i32 %37 to i8
  %39 = load ptr, ptr %3, align 8, !tbaa !5
  %40 = getelementptr inbounds %struct.bpacketsync_s, ptr %39, i32 0, i32 23
  store i8 %38, ptr %40, align 1, !tbaa !19
  %41 = load ptr, ptr %3, align 8, !tbaa !5
  %42 = getelementptr inbounds %struct.bpacketsync_s, ptr %41, i32 0, i32 19
  store i32 1, ptr %42, align 8, !tbaa !20
  br label %43

43:                                               ; preds = %33, %2
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #4
  ret i32 0
}

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

declare i32 @bsequence_correlate(ptr noundef, ptr noundef) #2

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare float @llvm.fabs.f32(float) #3

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #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 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
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 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!7, !7, i64 0}
!10 = !{!11, !6, i64 120}
!11 = !{!"bpacketsync_s", !12, i64 0, !12, i64 4, !12, i64 8, !12, i64 12, !12, i64 16, !12, i64 20, !12, i64 24, !12, i64 28, !12, i64 32, !6, i64 40, !6, i64 48, !6, i64 56, !7, i64 64, !7, i64 70, !6, i64 88, !6, i64 96, !6, i64 104, !6, i64 112, !6, i64 120, !12, i64 128, !12, i64 132, !12, i64 136, !7, i64 140, !7, i64 141, !12, i64 144, !12, i64 148, !6, i64 152, !6, i64 160, !13, i64 168}
!12 = !{!"int", !7, i64 0}
!13 = !{!"", !14, i64 0, !14, i64 4, !14, i64 8, !6, i64 16, !12, i64 24, !12, i64 28, !12, i64 32, !12, i64 36, !12, i64 40, !12, i64 44}
!14 = !{!"float", !7, i64 0}
!15 = !{!11, !6, i64 112}
!16 = !{!12, !12, i64 0}
!17 = !{!11, !12, i64 4}
!18 = !{!14, !14, i64 0}
!19 = !{!11, !7, i64 141}
!20 = !{!11, !12, i64 128}


; 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 noundef i32 @bpacketsync_execute_seekpn(ptr nocapture noundef %0, i8 noundef zeroext %1) local_unnamed_addr #0 {
  %3 = getelementptr inbounds i8, ptr %0, i64 120
  %4 = load ptr, ptr %3, align 8, !tbaa !5
  %5 = zext i8 %1 to i32
  %6 = tail call i32 @bsequence_push(ptr noundef %4, i32 noundef %5) #3
  %7 = getelementptr inbounds i8, ptr %0, i64 112
  %8 = load ptr, ptr %7, align 8, !tbaa !13
  %9 = load ptr, ptr %3, align 8, !tbaa !5
  %10 = tail call i32 @bsequence_correlate(ptr noundef %8, ptr noundef %9) #3
  %11 = sitofp i32 %10 to float
  %12 = fmul float %11, 2.000000e+00
  %13 = getelementptr inbounds i8, ptr %0, i64 4
  %14 = load i32, ptr %13, align 4, !tbaa !14
  %15 = shl i32 %14, 3
  %16 = uitofp i32 %15 to float
  %17 = fdiv float %12, %16
  %18 = fadd float %17, -1.000000e+00
  %19 = tail call float @llvm.fabs.f32(float %18)
  %20 = fcmp ogt float %19, 0x3FE99999A0000000
  br i1 %20, label %21, label %26

21:                                               ; preds = %2
  %22 = fcmp ule float %18, 0.000000e+00
  %23 = sext i1 %22 to i8
  %24 = getelementptr inbounds i8, ptr %0, i64 141
  store i8 %23, ptr %24, align 1, !tbaa !15
  %25 = getelementptr inbounds i8, ptr %0, i64 128
  store i32 1, ptr %25, align 8, !tbaa !16
  br label %26

26:                                               ; preds = %21, %2
  ret i32 0
}

declare i32 @bsequence_push(ptr noundef, i32 noundef) local_unnamed_addr #1

declare i32 @bsequence_correlate(ptr noundef, ptr noundef) local_unnamed_addr #1

; Function Attrs: mustprogress nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare float @llvm.fabs.f32(float) #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 = { "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 nosync nounwind speculatable willreturn memory(none) }
attributes #3 = { 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, !10, i64 120}
!6 = !{!"bpacketsync_s", !7, i64 0, !7, i64 4, !7, i64 8, !7, i64 12, !7, i64 16, !7, i64 20, !7, i64 24, !7, i64 28, !7, i64 32, !10, i64 40, !10, i64 48, !10, i64 56, !8, i64 64, !8, i64 70, !10, i64 88, !10, i64 96, !10, i64 104, !10, i64 112, !10, i64 120, !7, i64 128, !7, i64 132, !7, i64 136, !8, i64 140, !8, i64 141, !7, i64 144, !7, i64 148, !10, i64 152, !10, i64 160, !11, i64 168}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"any pointer", !8, i64 0}
!11 = !{!"", !12, i64 0, !12, i64 4, !12, i64 8, !10, i64 16, !7, i64 24, !7, i64 28, !7, i64 32, !7, i64 36, !7, i64 40, !7, i64 44}
!12 = !{!"float", !8, i64 0}
!13 = !{!6, !10, i64 112}
!14 = !{!6, !7, i64 4}
!15 = !{!6, !8, i64 141}
!16 = !{!6, !7, i64 128}


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