Re: Lua 5.4.0 (rc3) now available: compilation tests with gcc / TinyCC
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- Subject: Re: Lua 5.4.0 (rc3) now available: compilation tests with gcc / TinyCC
- From: Andrew Gierth <andrew@...>
- Date: 2020年5月14日 22:21:37 +0100
>>>>> "Tony" == Tony Papadimitriou <tonyp@acm.org> writes:
Tony> With v5.4 however I get into the stack issues I have reported
Tony> that crash the tests. The same happens with MSVC (2013) unless
Tony> the -Ox option is used.
Tony> There is no optimization option (as was suggested) with TCC to
Tony> overcome this problem.
If your compiler can't optimize to the extent of doing register
allocation and avoiding stack temporaries, then the stack usage of
luaV_execute (which is called once per recursion level) will be much
larger than normal (in my tests, it could increase by over 10x). You
will therefore need to reduce LUAI_MAXCSTACK or use a linker option to
increase the allowed stack space.
--
Andrew.
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