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Added option LUA_NOBUILTIN

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This option allows external code to avoid the use of gcc builtin macro
'__builtin_expect' in the Lua API.
This commit is contained in:
Roberto Ierusalimschy 2021-03-12 15:03:33 -03:00
parent 014daf43cb
commit eadd8c7178
1 changed files with 4 additions and 2 deletions
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6
luaconf.h
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@ -663,11 +663,13 @@
/*
** macros to improve jump prediction, used mostly for error handling
** and debug facilities.
** and debug facilities. (Some macros in the Lua API use these macros.
** Define LUA_NOBUILTIN if you do not want '__builtin_expect' in your
** code.)
*/
#if !defined(luai_likely)
#if defined(__GNUC__)
#if defined(__GNUC__) && !defined(LUA_NOBUILTIN)
#define luai_likely(x) (__builtin_expect(((x) != 0), 1))
#define luai_unlikely(x) (__builtin_expect(((x) != 0), 0))
#else