; LLVM IR from intel/cryptography-primitives :: sources/ippcp/xmss (wots_internal)

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

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

14:                                               ; preds = %54, %4
  %15 = load i32, ptr %13, align 4, !tbaa !9
  %16 = load i32, ptr %6, align 4, !tbaa !9
  %17 = icmp slt i32 %15, %16
  br i1 %17, label %19, label %18

18:                                               ; preds = %14
  call void @llvm.lifetime.end.p0(i64 4, ptr %13) #2
  br label %57

19:                                               ; preds = %14
  %20 = load i32, ptr %12, align 4, !tbaa !9
  %21 = icmp eq i32 %20, 0
  br i1 %21, label %22, label %33

22:                                               ; preds = %19
  %23 = load ptr, ptr %5, align 8, !tbaa !5
  %24 = load i32, ptr %9, align 4, !tbaa !9
  %25 = sext i32 %24 to i64
  %26 = getelementptr inbounds i8, ptr %23, i64 %25
  %27 = load i8, ptr %26, align 1, !tbaa !11
  %28 = zext i8 %27 to i32
  store i32 %28, ptr %11, align 4, !tbaa !9
  %29 = load i32, ptr %9, align 4, !tbaa !9
  %30 = add nsw i32 %29, 1
  store i32 %30, ptr %9, align 4, !tbaa !9
  %31 = load i32, ptr %12, align 4, !tbaa !9
  %32 = add nsw i32 %31, 8
  store i32 %32, ptr %12, align 4, !tbaa !9
  br label %33

33:                                               ; preds = %22, %19
  %34 = load ptr, ptr %8, align 8, !tbaa !5
  %35 = getelementptr inbounds %struct.cpWOTSParams, ptr %34, i32 0, i32 4
  %36 = load i32, ptr %35, align 8, !tbaa !12
  %37 = load i32, ptr %12, align 4, !tbaa !9
  %38 = sub nsw i32 %37, %36
  store i32 %38, ptr %12, align 4, !tbaa !9
  %39 = load i32, ptr %11, align 4, !tbaa !9
  %40 = load i32, ptr %12, align 4, !tbaa !9
  %41 = lshr i32 %39, %40
  %42 = load ptr, ptr %8, align 8, !tbaa !5
  %43 = getelementptr inbounds %struct.cpWOTSParams, ptr %42, i32 0, i32 1
  %44 = load i32, ptr %43, align 4, !tbaa !14
  %45 = sub i32 %44, 1
  %46 = and i32 %41, %45
  %47 = trunc i32 %46 to i8
  %48 = load ptr, ptr %7, align 8, !tbaa !5
  %49 = load i32, ptr %10, align 4, !tbaa !9
  %50 = sext i32 %49 to i64
  %51 = getelementptr inbounds i8, ptr %48, i64 %50
  store i8 %47, ptr %51, align 1, !tbaa !11
  %52 = load i32, ptr %10, align 4, !tbaa !9
  %53 = add nsw i32 %52, 1
  store i32 %53, ptr %10, align 4, !tbaa !9
  br label %54

54:                                               ; preds = %33
  %55 = load i32, ptr %13, align 4, !tbaa !9
  %56 = add nsw i32 %55, 1
  store i32 %56, ptr %13, align 4, !tbaa !9
  br label %14, !llvm.loop !15

57:                                               ; preds = %18
  call void @llvm.lifetime.end.p0(i64 4, ptr %12) #2
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #2
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #2
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #2
  ret void
}

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

; 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 }

!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 = !{!13, !10, i64 16}
!13 = !{!"", !10, i64 0, !10, i64 4, !10, i64 8, !10, i64 12, !10, i64 16, !6, i64 24}
!14 = !{!13, !10, i64 4}
!15 = distinct !{!15, !16}
!16 = !{!"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: nofree norecurse nosync nounwind memory(argmem: readwrite) uwtable
define dso_local void @cp_xmss_base_w(ptr nocapture noundef readonly %0, i32 noundef %1, ptr nocapture noundef writeonly %2, ptr nocapture noundef readonly %3) local_unnamed_addr #0 {
  %5 = icmp sgt i32 %1, 0
  br i1 %5, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %4
  %6 = getelementptr inbounds i8, ptr %3, i64 16
  %7 = getelementptr inbounds i8, ptr %3, i64 4
  %wide.trip.count = zext nneg i32 %1 to i64
  br label %8

._crit_edge:                                      ; preds = %16, %4
  ret void

8:                                                ; preds = %.lr.ph, %16
  %indvars.iv = phi i64 [ 0, %.lr.ph ], [ %indvars.iv.next, %16 ]
  %.01524 = phi i32 [ 0, %.lr.ph ], [ %18, %16 ]
  %.01623 = phi i32 [ 0, %.lr.ph ], [ %.117, %16 ]
  %.01921 = phi i32 [ 0, %.lr.ph ], [ %.120, %16 ]
  %9 = icmp eq i32 %.01524, 0
  br i1 %9, label %10, label %16

10:                                               ; preds = %8
  %11 = sext i32 %.01921 to i64
  %12 = getelementptr inbounds i8, ptr %0, i64 %11
  %13 = load i8, ptr %12, align 1, !tbaa !5
  %14 = zext i8 %13 to i32
  %15 = add nsw i32 %.01921, 1
  br label %16

16:                                               ; preds = %10, %8
  %.120 = phi i32 [ %15, %10 ], [ %.01921, %8 ]
  %.117 = phi i32 [ %14, %10 ], [ %.01623, %8 ]
  %.1 = phi i32 [ 8, %10 ], [ %.01524, %8 ]
  %17 = load i32, ptr %6, align 8, !tbaa !8
  %18 = sub nsw i32 %.1, %17
  %19 = lshr i32 %.117, %18
  %20 = load i32, ptr %7, align 4, !tbaa !12
  %21 = add i32 %20, 255
  %22 = and i32 %19, %21
  %23 = trunc nuw i32 %22 to i8
  %24 = getelementptr inbounds i8, ptr %2, i64 %indvars.iv
  store i8 %23, ptr %24, align 1, !tbaa !5
  %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 %8, !llvm.loop !13
}

attributes #0 = { nofree norecurse nosync nounwind memory(argmem: readwrite) 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" }

!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 = !{!9, !10, i64 16}
!9 = !{!"", !10, i64 0, !10, i64 4, !10, i64 8, !10, i64 12, !10, i64 16, !11, i64 24}
!10 = !{!"int", !6, i64 0}
!11 = !{!"any pointer", !6, i64 0}
!12 = !{!9, !10, i64 4}
!13 = distinct !{!13, !14}
!14 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: GlobalOptPass,IPSCCPPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LICMPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SCCPPass,SROAPass,SimplifyCFGPass