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

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

; 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
declare dso_local i32 @qpacketmodem_encode_syms(ptr noundef, ptr noundef, ptr noundef) #1

; Function Attrs: nounwind uwtable
define dso_local i32 @qpacketmodem_encode(ptr noundef %0, ptr noundef %1, ptr noundef %2) #1 {
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  store ptr %2, ptr %6, align 8, !tbaa !5
  %8 = load ptr, ptr %4, align 8, !tbaa !5
  %9 = load ptr, ptr %5, align 8, !tbaa !5
  %10 = load ptr, ptr %4, align 8, !tbaa !5
  %11 = getelementptr inbounds %struct.qpacketmodem_s, ptr %10, i32 0, i32 5
  %12 = load ptr, ptr %11, align 8, !tbaa !9
  %13 = call i32 @qpacketmodem_encode_syms(ptr noundef %8, ptr noundef %9, ptr noundef %12)
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #3
  store i32 0, ptr %7, align 4, !tbaa !13
  br label %14

14:                                               ; preds = %37, %3
  %15 = load i32, ptr %7, align 4, !tbaa !13
  %16 = load ptr, ptr %4, align 8, !tbaa !5
  %17 = getelementptr inbounds %struct.qpacketmodem_s, ptr %16, i32 0, i32 8
  %18 = load i32, ptr %17, align 8, !tbaa !14
  %19 = icmp ult i32 %15, %18
  br i1 %19, label %20, label %40

20:                                               ; preds = %14
  %21 = load ptr, ptr %4, align 8, !tbaa !5
  %22 = getelementptr inbounds %struct.qpacketmodem_s, ptr %21, i32 0, i32 0
  %23 = load ptr, ptr %22, align 8, !tbaa !15
  %24 = load ptr, ptr %4, align 8, !tbaa !5
  %25 = getelementptr inbounds %struct.qpacketmodem_s, ptr %24, i32 0, i32 5
  %26 = load ptr, ptr %25, align 8, !tbaa !9
  %27 = load i32, ptr %7, align 4, !tbaa !13
  %28 = zext i32 %27 to i64
  %29 = getelementptr inbounds i8, ptr %26, i64 %28
  %30 = load i8, ptr %29, align 1, !tbaa !16
  %31 = zext i8 %30 to i32
  %32 = load ptr, ptr %6, align 8, !tbaa !5
  %33 = load i32, ptr %7, align 4, !tbaa !13
  %34 = zext i32 %33 to i64
  %35 = getelementptr inbounds { float, float }, ptr %32, i64 %34
  %36 = call i32 @modemcf_modulate(ptr noundef %23, i32 noundef %31, ptr noundef %35)
  br label %37

37:                                               ; preds = %20
  %38 = load i32, ptr %7, align 4, !tbaa !13
  %39 = add i32 %38, 1
  store i32 %39, ptr %7, align 4, !tbaa !13
  br label %14, !llvm.loop !17

40:                                               ; preds = %14
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #3
  ret i32 0
}

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

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 = { 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 = !{!10, !6, i64 32}
!10 = !{!"qpacketmodem_s", !6, i64 0, !6, i64 8, !11, i64 16, !11, i64 20, !6, i64 24, !6, i64 32, !11, i64 40, !11, i64 44, !11, i64 48, !11, i64 52, !12, i64 56}
!11 = !{!"int", !7, i64 0}
!12 = !{!"float", !7, i64 0}
!13 = !{!11, !11, i64 0}
!14 = !{!10, !11, i64 48}
!15 = !{!10, !6, i64 0}
!16 = !{!7, !7, i64 0}
!17 = distinct !{!17, !18}
!18 = !{!"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
declare dso_local i32 @qpacketmodem_encode_syms(ptr noundef, ptr noundef, ptr noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local noundef i32 @qpacketmodem_encode(ptr noundef %0, ptr noundef %1, ptr noundef %2) local_unnamed_addr #0 {
  %4 = getelementptr inbounds i8, ptr %0, i64 32
  %5 = load ptr, ptr %4, align 8, !tbaa !5
  %6 = tail call i32 @qpacketmodem_encode_syms(ptr noundef %0, ptr noundef %1, ptr noundef %5)
  %7 = getelementptr inbounds i8, ptr %0, i64 48
  %8 = load i32, ptr %7, align 8, !tbaa !12
  %.not = icmp eq i32 %8, 0
  br i1 %.not, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %3, %.lr.ph
  %indvars.iv = phi i64 [ %indvars.iv.next, %.lr.ph ], [ 0, %3 ]
  %9 = load ptr, ptr %0, align 8, !tbaa !13
  %10 = load ptr, ptr %4, align 8, !tbaa !5
  %11 = getelementptr inbounds i8, ptr %10, i64 %indvars.iv
  %12 = load i8, ptr %11, align 1, !tbaa !14
  %13 = zext i8 %12 to i32
  %14 = getelementptr inbounds { float, float }, ptr %2, i64 %indvars.iv
  %15 = tail call i32 @modemcf_modulate(ptr noundef %9, i32 noundef %13, ptr noundef %14) #2
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %16 = load i32, ptr %7, align 8, !tbaa !12
  %17 = zext i32 %16 to i64
  %18 = icmp ult i64 %indvars.iv.next, %17
  br i1 %18, label %.lr.ph, label %._crit_edge, !llvm.loop !15

._crit_edge:                                      ; preds = %.lr.ph, %3
  ret i32 0
}

declare i32 @modemcf_modulate(ptr noundef, i32 noundef, ptr noundef) local_unnamed_addr #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 = { "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 }

!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 32}
!6 = !{!"qpacketmodem_s", !7, i64 0, !7, i64 8, !10, i64 16, !10, i64 20, !7, i64 24, !7, i64 32, !10, i64 40, !10, i64 44, !10, i64 48, !10, i64 52, !11, i64 56}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"int", !8, i64 0}
!11 = !{!"float", !8, i64 0}
!12 = !{!6, !10, i64 48}
!13 = !{!6, !7, i64 0}
!14 = !{!8, !8, i64 0}
!15 = distinct !{!15, !16}
!16 = !{!"llvm.loop.mustprogress"}


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