; LLVM IR from openssl/openssl :: crypto/slh_dsa (slh_params)

; 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.slh_dsa_params_st = type { ptr, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i64 }

@slh_dsa_params = external hidden constant [13 x %struct.slh_dsa_params_st], align 16

; Function Attrs: nounwind uwtable
define dso_local ptr @ossl_slh_dsa_params_get(ptr noundef %0) #0 {
  %2 = alloca ptr, align 8
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  store ptr %0, ptr %3, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #3
  %6 = load ptr, ptr %3, align 8, !tbaa !5
  %7 = icmp eq ptr %6, null
  br i1 %7, label %8, label %9

8:                                                ; preds = %1
  store ptr null, ptr %2, align 8
  store i32 1, ptr %5, align 4
  br label %29

9:                                                ; preds = %1
  store ptr @slh_dsa_params, ptr %4, align 8, !tbaa !5
  br label %10

10:                                               ; preds = %25, %9
  %11 = load ptr, ptr %4, align 8, !tbaa !5
  %12 = getelementptr inbounds %struct.slh_dsa_params_st, ptr %11, i32 0, i32 0
  %13 = load ptr, ptr %12, align 8, !tbaa !9
  %14 = icmp ne ptr %13, null
  br i1 %14, label %15, label %28

15:                                               ; preds = %10
  %16 = load ptr, ptr %4, align 8, !tbaa !5
  %17 = getelementptr inbounds %struct.slh_dsa_params_st, ptr %16, i32 0, i32 0
  %18 = load ptr, ptr %17, align 8, !tbaa !9
  %19 = load ptr, ptr %3, align 8, !tbaa !5
  %20 = call i32 @strcmp(ptr noundef %18, ptr noundef %19) #4
  %21 = icmp eq i32 %20, 0
  br i1 %21, label %22, label %24

22:                                               ; preds = %15
  %23 = load ptr, ptr %4, align 8, !tbaa !5
  store ptr %23, ptr %2, align 8
  store i32 1, ptr %5, align 4
  br label %29

24:                                               ; preds = %15
  br label %25

25:                                               ; preds = %24
  %26 = load ptr, ptr %4, align 8, !tbaa !5
  %27 = getelementptr inbounds %struct.slh_dsa_params_st, ptr %26, i32 1
  store ptr %27, ptr %4, align 8, !tbaa !5
  br label %10, !llvm.loop !13

28:                                               ; preds = %10
  store ptr null, ptr %2, align 8
  store i32 1, ptr %5, align 4
  br label %29

29:                                               ; preds = %28, %22, %8
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #3
  %30 = load ptr, ptr %2, align 8
  ret ptr %30
}

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

; Function Attrs: nounwind willreturn memory(read)
declare i32 @strcmp(ptr noundef, ptr noundef) #2

; 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 willreturn memory(read) "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 }
attributes #4 = { nounwind willreturn memory(read) }

!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 0}
!10 = !{!"slh_dsa_params_st", !6, i64 0, !11, i64 8, !11, i64 12, !11, i64 16, !11, i64 20, !11, i64 24, !11, i64 28, !11, i64 32, !11, i64 36, !11, i64 40, !11, i64 44, !11, i64 48, !11, i64 52, !12, i64 56}
!11 = !{!"int", !7, i64 0}
!12 = !{!"long", !7, i64 0}
!13 = distinct !{!13, !14}
!14 = !{!"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"

%struct.slh_dsa_params_st = type { ptr, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i64 }

@slh_dsa_params = external hidden constant [13 x %struct.slh_dsa_params_st], align 16

; Function Attrs: nofree nounwind memory(read, inaccessiblemem: none) uwtable
define dso_local noundef ptr @ossl_slh_dsa_params_get(ptr noundef readonly %0) local_unnamed_addr #0 {
  %2 = icmp eq ptr %0, null
  %3 = load ptr, ptr @slh_dsa_params, align 16
  %.not10 = icmp eq ptr %3, null
  %or.cond = select i1 %2, i1 true, i1 %.not10
  br i1 %or.cond, label %.loopexit, label %.lr.ph

.lr.ph:                                           ; preds = %1, %7
  %4 = phi ptr [ %9, %7 ], [ %3, %1 ]
  %.011 = phi ptr [ %8, %7 ], [ @slh_dsa_params, %1 ]
  %5 = tail call i32 @strcmp(ptr noundef nonnull dereferenceable(1) %4, ptr noundef nonnull dereferenceable(1) %0) #2
  %6 = icmp eq i32 %5, 0
  br i1 %6, label %.loopexit, label %7

7:                                                ; preds = %.lr.ph
  %8 = getelementptr inbounds i8, ptr %.011, i64 64
  %9 = load ptr, ptr %8, align 8, !tbaa !5
  %.not = icmp eq ptr %9, null
  br i1 %.not, label %.loopexit, label %.lr.ph, !llvm.loop !12

.loopexit:                                        ; preds = %.lr.ph, %7, %1
  %.07 = phi ptr [ null, %1 ], [ %.011, %.lr.ph ], [ null, %7 ]
  ret ptr %.07
}

; Function Attrs: mustprogress nofree nounwind willreturn memory(argmem: read)
declare i32 @strcmp(ptr nocapture noundef, ptr nocapture noundef) local_unnamed_addr #1

attributes #0 = { nofree nounwind memory(read, inaccessiblemem: none) 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 memory(argmem: read) "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 willreturn memory(read) }

!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 = !{!"slh_dsa_params_st", !7, i64 0, !10, i64 8, !10, i64 12, !10, i64 16, !10, i64 20, !10, i64 24, !10, i64 28, !10, i64 32, !10, i64 36, !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 = !{!"long", !8, i64 0}
!12 = distinct !{!12, !13}
!13 = !{!"llvm.loop.mustprogress"}


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