; LLVM IR from jgaeddert/liquid-dsp :: sandbox (fec_secded_punctured_test)

; 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"

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nounwind uwtable
define dso_local void @secded7264_encode_symbol_punctured(ptr noundef %0, ptr noundef %1, i32 noundef %2) #1 {
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca [8 x i8], align 1
  %9 = alloca i8, align 1
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  store i32 %2, ptr %6, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #3
  store i32 0, ptr %7, align 4, !tbaa !9
  br label %10

10:                                               ; preds = %31, %3
  %11 = load i32, ptr %7, align 4, !tbaa !9
  %12 = icmp ult i32 %11, 8
  br i1 %12, label %13, label %34

13:                                               ; preds = %10
  %14 = load i32, ptr %7, align 4, !tbaa !9
  %15 = load i32, ptr %6, align 4, !tbaa !9
  %16 = icmp ult i32 %14, %15
  br i1 %16, label %17, label %24

17:                                               ; preds = %13
  %18 = load ptr, ptr %4, align 8, !tbaa !5
  %19 = load i32, ptr %7, align 4, !tbaa !9
  %20 = zext i32 %19 to i64
  %21 = getelementptr inbounds i8, ptr %18, i64 %20
  %22 = load i8, ptr %21, align 1, !tbaa !11
  %23 = zext i8 %22 to i32
  br label %25

24:                                               ; preds = %13
  br label %25

25:                                               ; preds = %24, %17
  %26 = phi i32 [ %23, %17 ], [ 0, %24 ]
  %27 = trunc i32 %26 to i8
  %28 = load i32, ptr %7, align 4, !tbaa !9
  %29 = zext i32 %28 to i64
  %30 = getelementptr inbounds [8 x i8], ptr %8, i64 0, i64 %29
  store i8 %27, ptr %30, align 1, !tbaa !11
  br label %31

31:                                               ; preds = %25
  %32 = load i32, ptr %7, align 4, !tbaa !9
  %33 = add i32 %32, 1
  store i32 %33, ptr %7, align 4, !tbaa !9
  br label %10, !llvm.loop !12

34:                                               ; preds = %10
  call void @llvm.lifetime.start.p0(i64 1, ptr %9) #3
  %35 = getelementptr inbounds [8 x i8], ptr %8, i64 0, i64 0
  %36 = call zeroext i8 @fec_secded7264_compute_parity(ptr noundef %35)
  store i8 %36, ptr %9, align 1, !tbaa !11
  %37 = load i8, ptr %9, align 1, !tbaa !11
  %38 = load ptr, ptr %5, align 8, !tbaa !5
  %39 = getelementptr inbounds i8, ptr %38, i64 0
  store i8 %37, ptr %39, align 1, !tbaa !11
  store i32 0, ptr %7, align 4, !tbaa !9
  br label %40

40:                                               ; preds = %55, %34
  %41 = load i32, ptr %7, align 4, !tbaa !9
  %42 = load i32, ptr %6, align 4, !tbaa !9
  %43 = icmp ult i32 %41, %42
  br i1 %43, label %44, label %58

44:                                               ; preds = %40
  %45 = load ptr, ptr %4, align 8, !tbaa !5
  %46 = load i32, ptr %7, align 4, !tbaa !9
  %47 = zext i32 %46 to i64
  %48 = getelementptr inbounds i8, ptr %45, i64 %47
  %49 = load i8, ptr %48, align 1, !tbaa !11
  %50 = load ptr, ptr %5, align 8, !tbaa !5
  %51 = load i32, ptr %7, align 4, !tbaa !9
  %52 = add i32 %51, 1
  %53 = zext i32 %52 to i64
  %54 = getelementptr inbounds i8, ptr %50, i64 %53
  store i8 %49, ptr %54, align 1, !tbaa !11
  br label %55

55:                                               ; preds = %44
  %56 = load i32, ptr %7, align 4, !tbaa !9
  %57 = add i32 %56, 1
  store i32 %57, ptr %7, align 4, !tbaa !9
  br label %40, !llvm.loop !14

58:                                               ; preds = %40
  call void @llvm.lifetime.end.p0(i64 1, ptr %9) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #3
  ret void
}

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

declare zeroext i8 @fec_secded7264_compute_parity(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, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{!7, !7, i64 0}
!12 = distinct !{!12, !13}
!13 = !{!"llvm.loop.mustprogress"}
!14 = distinct !{!14, !13}


; 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 nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nounwind uwtable
define dso_local void @secded7264_encode_symbol_punctured(ptr nocapture noundef readonly %0, ptr nocapture noundef writeonly %1, i32 noundef %2) local_unnamed_addr #1 {
  %4 = ptrtoint ptr %0 to i64
  %5 = ptrtoint ptr %1 to i64
  %6 = alloca [8 x i8], align 1
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %6) #3
  %7 = zext i32 %2 to i64
  %.not19 = icmp eq i32 %2, 0
  br i1 %.not19, label %.thread, label %8

.thread:                                          ; preds = %3
  store i8 0, ptr %6, align 1, !tbaa !5
  br label %.thread20

8:                                                ; preds = %3
  %9 = load i8, ptr %0, align 1, !tbaa !5
  store i8 %9, ptr %6, align 1, !tbaa !5
  %.not31 = icmp eq i32 %2, 1
  br i1 %.not31, label %.thread20, label %11

.thread20:                                        ; preds = %.thread, %8
  %10 = getelementptr inbounds i8, ptr %6, i64 1
  store i8 0, ptr %10, align 1, !tbaa !5
  br label %.thread22

11:                                               ; preds = %8
  %12 = getelementptr inbounds i8, ptr %0, i64 1
  %13 = load i8, ptr %12, align 1, !tbaa !5
  %14 = getelementptr inbounds i8, ptr %6, i64 1
  store i8 %13, ptr %14, align 1, !tbaa !5
  %15 = icmp ugt i32 %2, 2
  br i1 %15, label %17, label %.thread22

.thread22:                                        ; preds = %.thread20, %11
  %16 = getelementptr inbounds i8, ptr %6, i64 2
  store i8 0, ptr %16, align 1, !tbaa !5
  br label %.thread24

17:                                               ; preds = %11
  %18 = getelementptr inbounds i8, ptr %0, i64 2
  %19 = load i8, ptr %18, align 1, !tbaa !5
  %20 = getelementptr inbounds i8, ptr %6, i64 2
  store i8 %19, ptr %20, align 1, !tbaa !5
  %.not32 = icmp eq i32 %2, 3
  br i1 %.not32, label %.thread24, label %22

.thread24:                                        ; preds = %.thread22, %17
  %21 = getelementptr inbounds i8, ptr %6, i64 3
  store i8 0, ptr %21, align 1, !tbaa !5
  br label %.thread26

22:                                               ; preds = %17
  %23 = getelementptr inbounds i8, ptr %0, i64 3
  %24 = load i8, ptr %23, align 1, !tbaa !5
  %25 = getelementptr inbounds i8, ptr %6, i64 3
  store i8 %24, ptr %25, align 1, !tbaa !5
  %26 = icmp ugt i32 %2, 4
  br i1 %26, label %28, label %.thread26

.thread26:                                        ; preds = %.thread24, %22
  %27 = getelementptr inbounds i8, ptr %6, i64 4
  store i8 0, ptr %27, align 1, !tbaa !5
  br label %.thread28

28:                                               ; preds = %22
  %29 = getelementptr inbounds i8, ptr %0, i64 4
  %30 = load i8, ptr %29, align 1, !tbaa !5
  %31 = getelementptr inbounds i8, ptr %6, i64 4
  store i8 %30, ptr %31, align 1, !tbaa !5
  %.not33 = icmp eq i32 %2, 5
  br i1 %.not33, label %.thread28, label %33

.thread28:                                        ; preds = %.thread26, %28
  %32 = getelementptr inbounds i8, ptr %6, i64 5
  store i8 0, ptr %32, align 1, !tbaa !5
  br label %.thread30

33:                                               ; preds = %28
  %34 = getelementptr inbounds i8, ptr %0, i64 5
  %35 = load i8, ptr %34, align 1, !tbaa !5
  %36 = getelementptr inbounds i8, ptr %6, i64 5
  store i8 %35, ptr %36, align 1, !tbaa !5
  %37 = icmp ugt i32 %2, 6
  br i1 %37, label %39, label %.thread30

.thread30:                                        ; preds = %.thread28, %33
  %38 = getelementptr inbounds i8, ptr %6, i64 6
  store i8 0, ptr %38, align 1, !tbaa !5
  br label %46

39:                                               ; preds = %33
  %40 = getelementptr inbounds i8, ptr %0, i64 6
  %41 = load i8, ptr %40, align 1, !tbaa !5
  %42 = getelementptr inbounds i8, ptr %6, i64 6
  store i8 %41, ptr %42, align 1, !tbaa !5
  %.not34 = icmp eq i32 %2, 7
  br i1 %.not34, label %46, label %43

43:                                               ; preds = %39
  %44 = getelementptr inbounds i8, ptr %0, i64 7
  %45 = load i8, ptr %44, align 1, !tbaa !5
  br label %46

46:                                               ; preds = %.thread30, %43, %39
  %47 = phi i8 [ %45, %43 ], [ 0, %39 ], [ 0, %.thread30 ]
  %48 = getelementptr inbounds i8, ptr %6, i64 7
  store i8 %47, ptr %48, align 1, !tbaa !5
  %49 = call zeroext i8 @fec_secded7264_compute_parity(ptr noundef nonnull %6) #3
  store i8 %49, ptr %1, align 1, !tbaa !5
  %.not = icmp eq i32 %2, 0
  br i1 %.not, label %._crit_edge, label %iter.check

iter.check:                                       ; preds = %46
  %min.iters.check = icmp ult i32 %2, 8
  br i1 %min.iters.check, label %.lr.ph.preheader, label %vector.memcheck

vector.memcheck:                                  ; preds = %iter.check
  %50 = add i64 %5, 1
  %51 = sub i64 %50, %4
  %diff.check = icmp ult i64 %51, 32
  br i1 %diff.check, label %.lr.ph.preheader, label %vector.main.loop.iter.check

vector.main.loop.iter.check:                      ; preds = %vector.memcheck
  %min.iters.check35 = icmp ult i32 %2, 32
  br i1 %min.iters.check35, label %vec.epilog.ph, label %vector.ph

vector.ph:                                        ; preds = %vector.main.loop.iter.check
  %n.vec = and i64 %7, 4294967264
  br label %vector.body

vector.body:                                      ; preds = %vector.body, %vector.ph
  %index = phi i64 [ 0, %vector.ph ], [ %index.next, %vector.body ]
  %52 = getelementptr inbounds i8, ptr %0, i64 %index
  %53 = getelementptr inbounds i8, ptr %52, i64 16
  %wide.load = load <16 x i8>, ptr %52, align 1, !tbaa !5
  %wide.load36 = load <16 x i8>, ptr %53, align 1, !tbaa !5
  %54 = or disjoint i64 %index, 1
  %55 = getelementptr inbounds i8, ptr %1, i64 %54
  %56 = getelementptr inbounds i8, ptr %55, i64 16
  store <16 x i8> %wide.load, ptr %55, align 1, !tbaa !5
  store <16 x i8> %wide.load36, ptr %56, align 1, !tbaa !5
  %index.next = add nuw i64 %index, 32
  %57 = icmp eq i64 %index.next, %n.vec
  br i1 %57, label %middle.block, label %vector.body, !llvm.loop !8

middle.block:                                     ; preds = %vector.body
  %cmp.n = icmp eq i64 %n.vec, %7
  br i1 %cmp.n, label %._crit_edge, label %vec.epilog.iter.check

vec.epilog.iter.check:                            ; preds = %middle.block
  %n.vec.remaining = and i64 %7, 24
  %min.epilog.iters.check = icmp eq i64 %n.vec.remaining, 0
  br i1 %min.epilog.iters.check, label %.lr.ph.preheader, label %vec.epilog.ph

vec.epilog.ph:                                    ; preds = %vector.main.loop.iter.check, %vec.epilog.iter.check
  %vec.epilog.resume.val = phi i64 [ %n.vec, %vec.epilog.iter.check ], [ 0, %vector.main.loop.iter.check ]
  %n.vec38 = and i64 %7, 4294967288
  br label %vec.epilog.vector.body

vec.epilog.vector.body:                           ; preds = %vec.epilog.vector.body, %vec.epilog.ph
  %index39 = phi i64 [ %vec.epilog.resume.val, %vec.epilog.ph ], [ %index.next41, %vec.epilog.vector.body ]
  %58 = getelementptr inbounds i8, ptr %0, i64 %index39
  %wide.load40 = load <8 x i8>, ptr %58, align 1, !tbaa !5
  %59 = or disjoint i64 %index39, 1
  %60 = getelementptr inbounds i8, ptr %1, i64 %59
  store <8 x i8> %wide.load40, ptr %60, align 1, !tbaa !5
  %index.next41 = add nuw i64 %index39, 8
  %61 = icmp eq i64 %index.next41, %n.vec38
  br i1 %61, label %vec.epilog.middle.block, label %vec.epilog.vector.body, !llvm.loop !12

vec.epilog.middle.block:                          ; preds = %vec.epilog.vector.body
  %cmp.n42 = icmp eq i64 %n.vec38, %7
  br i1 %cmp.n42, label %._crit_edge, label %.lr.ph.preheader

.lr.ph.preheader:                                 ; preds = %vec.epilog.middle.block, %vector.memcheck, %iter.check, %vec.epilog.iter.check
  %indvars.iv.ph = phi i64 [ 0, %iter.check ], [ 0, %vector.memcheck ], [ %n.vec, %vec.epilog.iter.check ], [ %n.vec38, %vec.epilog.middle.block ]
  %xtraiter = and i64 %7, 3
  %lcmp.mod.not = icmp eq i64 %xtraiter, 0
  br i1 %lcmp.mod.not, label %.lr.ph.prol.loopexit, label %.lr.ph.prol

.lr.ph.prol:                                      ; preds = %.lr.ph.preheader, %.lr.ph.prol
  %indvars.iv.prol = phi i64 [ %indvars.iv.next.prol, %.lr.ph.prol ], [ %indvars.iv.ph, %.lr.ph.preheader ]
  %prol.iter = phi i64 [ %prol.iter.next, %.lr.ph.prol ], [ 0, %.lr.ph.preheader ]
  %62 = getelementptr inbounds i8, ptr %0, i64 %indvars.iv.prol
  %63 = load i8, ptr %62, align 1, !tbaa !5
  %indvars.iv.next.prol = add nuw nsw i64 %indvars.iv.prol, 1
  %64 = getelementptr inbounds i8, ptr %1, i64 %indvars.iv.next.prol
  store i8 %63, ptr %64, align 1, !tbaa !5
  %prol.iter.next = add i64 %prol.iter, 1
  %prol.iter.cmp.not = icmp eq i64 %prol.iter.next, %xtraiter
  br i1 %prol.iter.cmp.not, label %.lr.ph.prol.loopexit, label %.lr.ph.prol, !llvm.loop !13

.lr.ph.prol.loopexit:                             ; preds = %.lr.ph.prol, %.lr.ph.preheader
  %indvars.iv.unr = phi i64 [ %indvars.iv.ph, %.lr.ph.preheader ], [ %indvars.iv.next.prol, %.lr.ph.prol ]
  %65 = sub nsw i64 %indvars.iv.ph, %7
  %66 = icmp ugt i64 %65, -4
  br i1 %66, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %.lr.ph.prol.loopexit, %.lr.ph
  %indvars.iv = phi i64 [ %indvars.iv.next.3, %.lr.ph ], [ %indvars.iv.unr, %.lr.ph.prol.loopexit ]
  %67 = getelementptr inbounds i8, ptr %0, i64 %indvars.iv
  %68 = load i8, ptr %67, align 1, !tbaa !5
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %69 = getelementptr inbounds i8, ptr %1, i64 %indvars.iv.next
  store i8 %68, ptr %69, align 1, !tbaa !5
  %70 = getelementptr inbounds i8, ptr %0, i64 %indvars.iv.next
  %71 = load i8, ptr %70, align 1, !tbaa !5
  %indvars.iv.next.1 = add nuw nsw i64 %indvars.iv, 2
  %72 = getelementptr inbounds i8, ptr %1, i64 %indvars.iv.next.1
  store i8 %71, ptr %72, align 1, !tbaa !5
  %73 = getelementptr inbounds i8, ptr %0, i64 %indvars.iv.next.1
  %74 = load i8, ptr %73, align 1, !tbaa !5
  %indvars.iv.next.2 = add nuw nsw i64 %indvars.iv, 3
  %75 = getelementptr inbounds i8, ptr %1, i64 %indvars.iv.next.2
  store i8 %74, ptr %75, align 1, !tbaa !5
  %76 = getelementptr inbounds i8, ptr %0, i64 %indvars.iv.next.2
  %77 = load i8, ptr %76, align 1, !tbaa !5
  %indvars.iv.next.3 = add nuw nsw i64 %indvars.iv, 4
  %78 = getelementptr inbounds i8, ptr %1, i64 %indvars.iv.next.3
  store i8 %77, ptr %78, align 1, !tbaa !5
  %exitcond.not.3 = icmp eq i64 %indvars.iv.next.3, %7
  br i1 %exitcond.not.3, label %._crit_edge, label %.lr.ph, !llvm.loop !15

._crit_edge:                                      ; preds = %.lr.ph.prol.loopexit, %.lr.ph, %middle.block, %vec.epilog.middle.block, %46
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %6) #3
  ret void
}

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

declare zeroext i8 @fec_secded7264_compute_parity(ptr noundef) local_unnamed_addr #2

attributes #0 = { mustprogress 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 = !{!"omnipotent char", !7, i64 0}
!7 = !{!"Simple C/C++ TBAA"}
!8 = distinct !{!8, !9, !10, !11}
!9 = !{!"llvm.loop.mustprogress"}
!10 = !{!"llvm.loop.isvectorized", i32 1}
!11 = !{!"llvm.loop.unroll.runtime.disable"}
!12 = distinct !{!12, !9, !10, !11}
!13 = distinct !{!13, !14}
!14 = !{!"llvm.loop.unroll.disable"}
!15 = distinct !{!15, !9, !10}


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