; LLVM IR from gost-engine/engine :: test_digest (engine_is_available)

; 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: nounwind uwtable
define dso_local i32 @engine_is_available(ptr noundef %0) #0 {
  %2 = alloca ptr, align 8
  %3 = alloca ptr, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #4
  %4 = call ptr @ENGINE_get_first()
  store ptr %4, ptr %3, align 8, !tbaa !5
  br label %5

5:                                                ; preds = %15, %1
  %6 = load ptr, ptr %3, align 8, !tbaa !5
  %7 = icmp ne ptr %6, null
  br i1 %7, label %8, label %18

8:                                                ; preds = %5
  %9 = load ptr, ptr %3, align 8, !tbaa !5
  %10 = call ptr @ENGINE_get_id(ptr noundef %9)
  %11 = load ptr, ptr %2, align 8, !tbaa !5
  %12 = call i32 @strcmp(ptr noundef %10, ptr noundef %11) #5
  %13 = icmp eq i32 %12, 0
  br i1 %13, label %14, label %15

14:                                               ; preds = %8
  br label %18

15:                                               ; preds = %8
  %16 = load ptr, ptr %3, align 8, !tbaa !5
  %17 = call ptr @ENGINE_get_next(ptr noundef %16)
  store ptr %17, ptr %3, align 8, !tbaa !5
  br label %5, !llvm.loop !9

18:                                               ; preds = %14, %5
  %19 = load ptr, ptr %3, align 8, !tbaa !5
  %20 = call i32 @ENGINE_free(ptr noundef %19)
  %21 = load ptr, ptr %3, align 8, !tbaa !5
  %22 = icmp ne ptr %21, null
  %23 = zext i1 %22 to i32
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #4
  ret i32 %23
}

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

declare ptr @ENGINE_get_first() #2

; Function Attrs: nounwind willreturn memory(read)
declare i32 @strcmp(ptr noundef, ptr noundef) #3

declare ptr @ENGINE_get_id(ptr noundef) #2

declare ptr @ENGINE_get_next(ptr noundef) #2

declare i32 @ENGINE_free(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 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 #4 = { nounwind }
attributes #5 = { 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 = distinct !{!9, !10}
!10 = !{!"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
define dso_local range(i32 0, 2) i32 @engine_is_available(ptr nocapture noundef readonly %0) local_unnamed_addr #0 {
  %2 = tail call ptr @ENGINE_get_first() #3
  %.not = icmp eq ptr %2, null
  br i1 %.not, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %1, %6
  %.06 = phi ptr [ %7, %6 ], [ %2, %1 ]
  %3 = tail call ptr @ENGINE_get_id(ptr noundef nonnull %.06) #3
  %4 = tail call i32 @strcmp(ptr noundef nonnull dereferenceable(1) %3, ptr noundef nonnull dereferenceable(1) %0) #4
  %5 = icmp eq i32 %4, 0
  br i1 %5, label %._crit_edge.loopexit, label %6

6:                                                ; preds = %.lr.ph
  %7 = tail call ptr @ENGINE_get_next(ptr noundef nonnull %.06) #3
  %.not11 = icmp eq ptr %7, null
  br i1 %.not11, label %._crit_edge.loopexit, label %.lr.ph, !llvm.loop !5

._crit_edge.loopexit:                             ; preds = %.lr.ph, %6
  %.0.lcssa.ph = phi ptr [ null, %6 ], [ %.06, %.lr.ph ]
  %8 = zext i1 %5 to i32
  br label %._crit_edge

._crit_edge:                                      ; preds = %._crit_edge.loopexit, %1
  %.0.lcssa = phi ptr [ null, %1 ], [ %.0.lcssa.ph, %._crit_edge.loopexit ]
  %.lcssa = phi i32 [ 0, %1 ], [ %8, %._crit_edge.loopexit ]
  %9 = tail call i32 @ENGINE_free(ptr noundef %.0.lcssa) #3
  ret i32 %.lcssa
}

declare ptr @ENGINE_get_first() local_unnamed_addr #1

; Function Attrs: mustprogress nofree nounwind willreturn memory(argmem: read)
declare i32 @strcmp(ptr nocapture noundef, ptr nocapture noundef) local_unnamed_addr #2

declare ptr @ENGINE_get_id(ptr noundef) local_unnamed_addr #1

declare ptr @ENGINE_get_next(ptr noundef) local_unnamed_addr #1

declare i32 @ENGINE_free(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 = { 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 #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 = distinct !{!5, !6}
!6 = !{!"llvm.loop.mustprogress"}


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