GitHub doesn't support showing huge files, for example, https://github.com/dotnet/coreclr/blob/master/src/jit/flowgraph.cpp has 25680 lines, but GitHub will show you only the first 14908. And it doesn't show any warning that the shown part is not full.

The same happens with reviewing diffs.

GitHub limits are not clear, https://help.github.com/en/articles/limits-for-viewing-content-and-diffs-in-a-repository tells about 1MB for text files, but flowgraph is smaller, I wrote them a question about code file sizes limits.

Once we get the actual limits we will be able to determinate the list of files that we need to split.

See also disscusion in dotnet/coreclr#26392 (comment).

cc @dotnet/jit-contrib

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