clangd sometimes takes too much memory

[alphagocc]

struct A
{
    int a, b, c;
};
A V[int(8e6)];

This code above makes clangd take about 1.8 GiB Memory
If I change 8e6 to a larger number, clangd would take more memory

Logs

No useful logs

System information

Output of clangd --version:

clangd version 14.0.0
Features: windows
Platform: x86_64-pc-windows-msvc

Editor/LSP plugin:

VS Code

Operating system:

Windows 10 Build 19044

[HighCommander4]

Likely duplicate of #967

[alphagocc]

Really duplicate of #967

[alphagocc]

Wait, seems two differrent bug.
I tried to compile the code with clang, but clang takes a little memory and is very fast
Or taking too much memory will lead to being slow?