; LLVM IR from intel/QAT_Engine :: qat_evp (qat_create_ciphers)

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

@qat_reload_algo = external global i32, align 4
@info = external hidden global [0 x %struct._chained_info], align 8

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

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

; Function Attrs: nounwind uwtable
define dso_local void @qat_create_ciphers() #1 {
  %1 = alloca i32, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr %1) #2
  %2 = load i32, ptr @qat_reload_algo, align 4, !tbaa !5
  %3 = icmp ne i32 %2, 0
  br i1 %3, label %4, label %5

4:                                                ; preds = %0
  call void @qat_free_ciphers()
  br label %5

5:                                                ; preds = %4, %0
  store i32 0, ptr %1, align 4, !tbaa !5
  br label %6

6:                                                ; preds = %25, %5
  %7 = load i32, ptr %1, align 4, !tbaa !5
  %8 = icmp ult i32 %7, 0
  br i1 %8, label %9, label %28

9:                                                ; preds = %6
  %10 = load i32, ptr %1, align 4, !tbaa !5
  %11 = sext i32 %10 to i64
  %12 = getelementptr inbounds [0 x %struct._chained_info], ptr @info, i64 0, i64 %11
  %13 = getelementptr inbounds %struct._chained_info, ptr %12, i32 0, i32 1
  %14 = load ptr, ptr %13, align 8, !tbaa !9
  %15 = icmp eq ptr %14, null
  br i1 %15, label %16, label %24

16:                                               ; preds = %9
  %17 = load i32, ptr %1, align 4, !tbaa !5
  %18 = sext i32 %17 to i64
  %19 = getelementptr inbounds [0 x %struct._chained_info], ptr @info, i64 0, i64 %18
  %20 = getelementptr inbounds %struct._chained_info, ptr %19, i32 0, i32 0
  %21 = load i32, ptr %20, align 8, !tbaa !12
  switch i32 %21, label %22 [
  ]

22:                                               ; preds = %16
  br label %23

23:                                               ; preds = %22
  br label %24

24:                                               ; preds = %23, %9
  br label %25

25:                                               ; preds = %24
  %26 = load i32, ptr %1, align 4, !tbaa !5
  %27 = add nsw i32 %26, 1
  store i32 %27, ptr %1, align 4, !tbaa !5
  br label %6, !llvm.loop !13

28:                                               ; preds = %6
  call void @llvm.lifetime.end.p0(i64 4, ptr %1) #2
  ret void
}

; Function Attrs: nounwind uwtable
declare dso_local void @qat_free_ciphers() #1

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 = { 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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !11, i64 8}
!10 = !{!"_chained_info", !6, i64 0, !11, i64 8, !6, i64 16}
!11 = !{!"any pointer", !7, i64 0}
!12 = !{!10, !6, 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"

@qat_reload_algo = external local_unnamed_addr global i32, align 4

; Function Attrs: nounwind uwtable
define dso_local void @qat_create_ciphers() local_unnamed_addr #0 {
  %1 = load i32, ptr @qat_reload_algo, align 4, !tbaa !5
  %.not = icmp eq i32 %1, 0
  br i1 %.not, label %3, label %2

2:                                                ; preds = %0
  tail call void @qat_free_ciphers()
  br label %3

3:                                                ; preds = %2, %0
  ret void
}

; Function Attrs: nounwind uwtable
declare dso_local void @qat_free_ciphers() local_unnamed_addr #0

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" }

!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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,SROAPass,SimplifyCFGPass,TailCallElimPass