; LLVM IR from openssl/openssl :: providers/common (digest_to_nid)

; 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.ossl_item_st = type { i32, ptr }

; Function Attrs: nounwind uwtable
define dso_local i32 @ossl_digest_md_to_nid(ptr noundef %0, ptr noundef %1, i64 noundef %2) #0 {
  %4 = alloca i32, align 4
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca i64, align 8
  %8 = alloca i64, align 8
  %9 = alloca i32, align 4
  store ptr %0, ptr %5, align 8, !tbaa !5
  store ptr %1, ptr %6, align 8, !tbaa !5
  store i64 %2, ptr %7, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #3
  %10 = load ptr, ptr %5, align 8, !tbaa !5
  %11 = icmp eq ptr %10, null
  br i1 %11, label %12, label %13

12:                                               ; preds = %3
  store i32 0, ptr %4, align 4
  store i32 1, ptr %9, align 4
  br label %38

13:                                               ; preds = %3
  store i64 0, ptr %8, align 8, !tbaa !9
  br label %14

14:                                               ; preds = %34, %13
  %15 = load i64, ptr %8, align 8, !tbaa !9
  %16 = load i64, ptr %7, align 8, !tbaa !9
  %17 = icmp ult i64 %15, %16
  br i1 %17, label %18, label %37

18:                                               ; preds = %14
  %19 = load ptr, ptr %5, align 8, !tbaa !5
  %20 = load ptr, ptr %6, align 8, !tbaa !5
  %21 = load i64, ptr %8, align 8, !tbaa !9
  %22 = getelementptr inbounds %struct.ossl_item_st, ptr %20, i64 %21
  %23 = getelementptr inbounds %struct.ossl_item_st, ptr %22, i32 0, i32 1
  %24 = load ptr, ptr %23, align 8, !tbaa !11
  %25 = call i32 @EVP_MD_is_a(ptr noundef %19, ptr noundef %24)
  %26 = icmp ne i32 %25, 0
  br i1 %26, label %27, label %33

27:                                               ; preds = %18
  %28 = load ptr, ptr %6, align 8, !tbaa !5
  %29 = load i64, ptr %8, align 8, !tbaa !9
  %30 = getelementptr inbounds %struct.ossl_item_st, ptr %28, i64 %29
  %31 = getelementptr inbounds %struct.ossl_item_st, ptr %30, i32 0, i32 0
  %32 = load i32, ptr %31, align 8, !tbaa !14
  store i32 %32, ptr %4, align 4
  store i32 1, ptr %9, align 4
  br label %38

33:                                               ; preds = %18
  br label %34

34:                                               ; preds = %33
  %35 = load i64, ptr %8, align 8, !tbaa !9
  %36 = add i64 %35, 1
  store i64 %36, ptr %8, align 8, !tbaa !9
  br label %14, !llvm.loop !15

37:                                               ; preds = %14
  store i32 0, ptr %4, align 4
  store i32 1, ptr %9, align 4
  br label %38

38:                                               ; preds = %37, %27, %12
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #3
  %39 = load i32, ptr %4, align 4
  ret i32 %39
}

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

declare i32 @EVP_MD_is_a(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 = { "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 = !{!"long", !7, i64 0}
!11 = !{!12, !6, i64 8}
!12 = !{!"ossl_item_st", !13, i64 0, !6, i64 8}
!13 = !{!"int", !7, i64 0}
!14 = !{!12, !13, i64 0}
!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"

%struct.ossl_item_st = type { i32, ptr }

; Function Attrs: nounwind uwtable
define dso_local i32 @ossl_digest_md_to_nid(ptr noundef %0, ptr nocapture noundef readonly %1, i64 noundef %2) local_unnamed_addr #0 {
  %4 = icmp ne ptr %0, null
  %5 = icmp ne i64 %2, 0
  %or.cond = and i1 %4, %5
  br i1 %or.cond, label %.lr.ph, label %.loopexit

6:                                                ; preds = %.lr.ph
  %7 = add nuw i64 %.011, 1
  %exitcond.not = icmp eq i64 %7, %2
  br i1 %exitcond.not, label %.loopexit, label %.lr.ph, !llvm.loop !5

.lr.ph:                                           ; preds = %3, %6
  %.011 = phi i64 [ %7, %6 ], [ 0, %3 ]
  %8 = getelementptr inbounds %struct.ossl_item_st, ptr %1, i64 %.011
  %9 = getelementptr inbounds i8, ptr %8, i64 8
  %10 = load ptr, ptr %9, align 8, !tbaa !7
  %11 = tail call i32 @EVP_MD_is_a(ptr noundef nonnull %0, ptr noundef %10) #2
  %.not = icmp eq i32 %11, 0
  br i1 %.not, label %6, label %12

12:                                               ; preds = %.lr.ph
  %13 = load i32, ptr %8, align 8, !tbaa !13
  br label %.loopexit

.loopexit:                                        ; preds = %6, %3, %12
  %.09 = phi i32 [ %13, %12 ], [ 0, %3 ], [ 0, %6 ]
  ret i32 %.09
}

declare i32 @EVP_MD_is_a(ptr 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 = distinct !{!5, !6}
!6 = !{!"llvm.loop.mustprogress"}
!7 = !{!8, !12, i64 8}
!8 = !{!"ossl_item_st", !9, i64 0, !12, i64 8}
!9 = !{!"int", !10, i64 0}
!10 = !{!"omnipotent char", !11, i64 0}
!11 = !{!"Simple C/C++ TBAA"}
!12 = !{!"any pointer", !10, i64 0}
!13 = !{!8, !9, i64 0}


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