; LLVM IR from gost-engine/engine :: gost_ctl (gost_param_free)

; 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"

@gost_params = external hidden global [4 x ptr], align 16
@.str = external hidden unnamed_addr constant [63 x i8], align 1

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

2:                                                ; preds = %13, %0
  %3 = load i32, ptr %1, align 4, !tbaa !5
  %4 = icmp sle i32 %3, 3
  br i1 %4, label %5, label %16

5:                                                ; preds = %2
  %6 = load i32, ptr %1, align 4, !tbaa !5
  %7 = sext i32 %6 to i64
  %8 = getelementptr inbounds [4 x ptr], ptr @gost_params, i64 0, i64 %7
  %9 = load ptr, ptr %8, align 8, !tbaa !9
  call void @CRYPTO_free(ptr noundef %9, ptr noundef @.str, i32 noundef 26)
  %10 = load i32, ptr %1, align 4, !tbaa !5
  %11 = sext i32 %10 to i64
  %12 = getelementptr inbounds [4 x ptr], ptr @gost_params, i64 0, i64 %11
  store ptr null, ptr %12, align 8, !tbaa !9
  br label %13

13:                                               ; preds = %5
  %14 = load i32, ptr %1, align 4, !tbaa !5
  %15 = add nsw i32 %14, 1
  store i32 %15, ptr %1, align 4, !tbaa !5
  br label %2, !llvm.loop !11

16:                                               ; preds = %2
  call void @llvm.lifetime.end.p0(i64 4, ptr %1) #3
  ret void
}

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

declare void @CRYPTO_free(ptr noundef, ptr noundef, i32 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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"any pointer", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"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"

@gost_params = external hidden local_unnamed_addr global [4 x ptr], align 16
@.str = external hidden unnamed_addr constant [63 x i8], align 1

; Function Attrs: nounwind uwtable
define dso_local void @gost_param_free() local_unnamed_addr #0 {
  %1 = load ptr, ptr @gost_params, align 16, !tbaa !5
  tail call void @CRYPTO_free(ptr noundef %1, ptr noundef nonnull @.str, i32 noundef 26) #2
  store ptr null, ptr @gost_params, align 16, !tbaa !5
  %2 = load ptr, ptr getelementptr inbounds (i8, ptr @gost_params, i64 8), align 8, !tbaa !5
  tail call void @CRYPTO_free(ptr noundef %2, ptr noundef nonnull @.str, i32 noundef 26) #2
  store ptr null, ptr getelementptr inbounds (i8, ptr @gost_params, i64 8), align 8, !tbaa !5
  %3 = load ptr, ptr getelementptr inbounds (i8, ptr @gost_params, i64 16), align 16, !tbaa !5
  tail call void @CRYPTO_free(ptr noundef %3, ptr noundef nonnull @.str, i32 noundef 26) #2
  store ptr null, ptr getelementptr inbounds (i8, ptr @gost_params, i64 16), align 16, !tbaa !5
  %4 = load ptr, ptr getelementptr inbounds (i8, ptr @gost_params, i64 24), align 8, !tbaa !5
  tail call void @CRYPTO_free(ptr noundef %4, ptr noundef nonnull @.str, i32 noundef 26) #2
  store ptr null, ptr getelementptr inbounds (i8, ptr @gost_params, i64 24), align 8, !tbaa !5
  ret void
}

declare void @CRYPTO_free(ptr noundef, ptr noundef, i32 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, !6, i64 0}
!6 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}


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