; LLVM IR from openssl/openssl :: crypto/ffc (ffc_dh)

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

@dh_named_groups = external hidden constant [14 x %struct.dh_named_group_st], align 16

; Function Attrs: nounwind uwtable
define dso_local ptr @ossl_ffc_name_to_dh_named_group(ptr noundef %0) #0 {
  %2 = alloca ptr, align 8
  %3 = alloca ptr, align 8
  %4 = alloca i64, 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
  store i64 0, ptr %4, align 8, !tbaa !9
  br label %6

6:                                                ; preds = %21, %1
  %7 = load i64, ptr %4, align 8, !tbaa !9
  %8 = icmp ult i64 %7, 14
  br i1 %8, label %9, label %24

9:                                                ; preds = %6
  %10 = load i64, ptr %4, align 8, !tbaa !9
  %11 = getelementptr inbounds [14 x %struct.dh_named_group_st], ptr @dh_named_groups, i64 0, i64 %10
  %12 = getelementptr inbounds %struct.dh_named_group_st, ptr %11, i32 0, i32 0
  %13 = load ptr, ptr %12, align 16, !tbaa !11
  %14 = load ptr, ptr %3, align 8, !tbaa !5
  %15 = call i32 @OPENSSL_strcasecmp(ptr noundef %13, ptr noundef %14)
  %16 = icmp eq i32 %15, 0
  br i1 %16, label %17, label %20

17:                                               ; preds = %9
  %18 = load i64, ptr %4, align 8, !tbaa !9
  %19 = getelementptr inbounds [14 x %struct.dh_named_group_st], ptr @dh_named_groups, i64 0, i64 %18
  store ptr %19, ptr %2, align 8
  store i32 1, ptr %5, align 4
  br label %25

20:                                               ; preds = %9
  br label %21

21:                                               ; preds = %20
  %22 = load i64, ptr %4, align 8, !tbaa !9
  %23 = add i64 %22, 1
  store i64 %23, ptr %4, align 8, !tbaa !9
  br label %6, !llvm.loop !14

24:                                               ; preds = %6
  store ptr null, ptr %2, align 8
  store i32 1, ptr %5, align 4
  br label %25

25:                                               ; preds = %24, %17
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #3
  %26 = load ptr, ptr %2, align 8
  ret ptr %26
}

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

declare i32 @OPENSSL_strcasecmp(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 0}
!12 = !{!"dh_named_group_st", !6, i64 0, !13, i64 8, !13, i64 12, !13, i64 16, !6, i64 24, !6, i64 32, !6, i64 40}
!13 = !{!"int", !7, i64 0}
!14 = distinct !{!14, !15}
!15 = !{!"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.dh_named_group_st = type { ptr, i32, i32, i32, ptr, ptr, ptr }

@dh_named_groups = external hidden constant [14 x %struct.dh_named_group_st], align 16

; Function Attrs: nounwind uwtable
define dso_local ptr @ossl_ffc_name_to_dh_named_group(ptr noundef %0) local_unnamed_addr #0 {
  %2 = load ptr, ptr @dh_named_groups, align 16, !tbaa !5
  %3 = tail call i32 @OPENSSL_strcasecmp(ptr noundef %2, ptr noundef %0) #2
  %4 = icmp eq i32 %3, 0
  br i1 %4, label %57, label %5

5:                                                ; preds = %1
  %6 = load ptr, ptr getelementptr inbounds (i8, ptr @dh_named_groups, i64 48), align 16, !tbaa !5
  %7 = tail call i32 @OPENSSL_strcasecmp(ptr noundef %6, ptr noundef %0) #2
  %8 = icmp eq i32 %7, 0
  br i1 %8, label %57, label %9

9:                                                ; preds = %5
  %10 = load ptr, ptr getelementptr inbounds (i8, ptr @dh_named_groups, i64 96), align 16, !tbaa !5
  %11 = tail call i32 @OPENSSL_strcasecmp(ptr noundef %10, ptr noundef %0) #2
  %12 = icmp eq i32 %11, 0
  br i1 %12, label %57, label %13

13:                                               ; preds = %9
  %14 = load ptr, ptr getelementptr inbounds (i8, ptr @dh_named_groups, i64 144), align 16, !tbaa !5
  %15 = tail call i32 @OPENSSL_strcasecmp(ptr noundef %14, ptr noundef %0) #2
  %16 = icmp eq i32 %15, 0
  br i1 %16, label %57, label %17

17:                                               ; preds = %13
  %18 = load ptr, ptr getelementptr inbounds (i8, ptr @dh_named_groups, i64 192), align 16, !tbaa !5
  %19 = tail call i32 @OPENSSL_strcasecmp(ptr noundef %18, ptr noundef %0) #2
  %20 = icmp eq i32 %19, 0
  br i1 %20, label %57, label %21

21:                                               ; preds = %17
  %22 = load ptr, ptr getelementptr inbounds (i8, ptr @dh_named_groups, i64 240), align 16, !tbaa !5
  %23 = tail call i32 @OPENSSL_strcasecmp(ptr noundef %22, ptr noundef %0) #2
  %24 = icmp eq i32 %23, 0
  br i1 %24, label %57, label %25

25:                                               ; preds = %21
  %26 = load ptr, ptr getelementptr inbounds (i8, ptr @dh_named_groups, i64 288), align 16, !tbaa !5
  %27 = tail call i32 @OPENSSL_strcasecmp(ptr noundef %26, ptr noundef %0) #2
  %28 = icmp eq i32 %27, 0
  br i1 %28, label %57, label %29

29:                                               ; preds = %25
  %30 = load ptr, ptr getelementptr inbounds (i8, ptr @dh_named_groups, i64 336), align 16, !tbaa !5
  %31 = tail call i32 @OPENSSL_strcasecmp(ptr noundef %30, ptr noundef %0) #2
  %32 = icmp eq i32 %31, 0
  br i1 %32, label %57, label %33

33:                                               ; preds = %29
  %34 = load ptr, ptr getelementptr inbounds (i8, ptr @dh_named_groups, i64 384), align 16, !tbaa !5
  %35 = tail call i32 @OPENSSL_strcasecmp(ptr noundef %34, ptr noundef %0) #2
  %36 = icmp eq i32 %35, 0
  br i1 %36, label %57, label %37

37:                                               ; preds = %33
  %38 = load ptr, ptr getelementptr inbounds (i8, ptr @dh_named_groups, i64 432), align 16, !tbaa !5
  %39 = tail call i32 @OPENSSL_strcasecmp(ptr noundef %38, ptr noundef %0) #2
  %40 = icmp eq i32 %39, 0
  br i1 %40, label %57, label %41

41:                                               ; preds = %37
  %42 = load ptr, ptr getelementptr inbounds (i8, ptr @dh_named_groups, i64 480), align 16, !tbaa !5
  %43 = tail call i32 @OPENSSL_strcasecmp(ptr noundef %42, ptr noundef %0) #2
  %44 = icmp eq i32 %43, 0
  br i1 %44, label %57, label %45

45:                                               ; preds = %41
  %46 = load ptr, ptr getelementptr inbounds (i8, ptr @dh_named_groups, i64 528), align 16, !tbaa !5
  %47 = tail call i32 @OPENSSL_strcasecmp(ptr noundef %46, ptr noundef %0) #2
  %48 = icmp eq i32 %47, 0
  br i1 %48, label %57, label %49

49:                                               ; preds = %45
  %50 = load ptr, ptr getelementptr inbounds (i8, ptr @dh_named_groups, i64 576), align 16, !tbaa !5
  %51 = tail call i32 @OPENSSL_strcasecmp(ptr noundef %50, ptr noundef %0) #2
  %52 = icmp eq i32 %51, 0
  br i1 %52, label %57, label %53

53:                                               ; preds = %49
  %54 = load ptr, ptr getelementptr inbounds (i8, ptr @dh_named_groups, i64 624), align 16, !tbaa !5
  %55 = tail call i32 @OPENSSL_strcasecmp(ptr noundef %54, ptr noundef %0) #2
  %56 = icmp eq i32 %55, 0
  %spec.select = select i1 %56, ptr getelementptr inbounds (i8, ptr @dh_named_groups, i64 624), ptr null
  br label %57

57:                                               ; preds = %53, %49, %45, %41, %37, %33, %29, %25, %21, %17, %13, %9, %5, %1
  %.05 = phi ptr [ @dh_named_groups, %1 ], [ getelementptr inbounds (i8, ptr @dh_named_groups, i64 48), %5 ], [ getelementptr inbounds (i8, ptr @dh_named_groups, i64 96), %9 ], [ getelementptr inbounds (i8, ptr @dh_named_groups, i64 144), %13 ], [ getelementptr inbounds (i8, ptr @dh_named_groups, i64 192), %17 ], [ getelementptr inbounds (i8, ptr @dh_named_groups, i64 240), %21 ], [ getelementptr inbounds (i8, ptr @dh_named_groups, i64 288), %25 ], [ getelementptr inbounds (i8, ptr @dh_named_groups, i64 336), %29 ], [ getelementptr inbounds (i8, ptr @dh_named_groups, i64 384), %33 ], [ getelementptr inbounds (i8, ptr @dh_named_groups, i64 432), %37 ], [ getelementptr inbounds (i8, ptr @dh_named_groups, i64 480), %41 ], [ getelementptr inbounds (i8, ptr @dh_named_groups, i64 528), %45 ], [ getelementptr inbounds (i8, ptr @dh_named_groups, i64 576), %49 ], [ %spec.select, %53 ]
  ret ptr %.05
}

declare i32 @OPENSSL_strcasecmp(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 = !{!6, !7, i64 0}
!6 = !{!"dh_named_group_st", !7, i64 0, !10, i64 8, !10, i64 12, !10, i64 16, !7, i64 24, !7, i64 32, !7, i64 40}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"int", !8, i64 0}


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