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gcc's support for __attribute__((noinline)) hasn't been around forever. 

Buildfarm member gaur says it wasn't there in 2.95.3.  Guess that 3.0
and later have it.
This commit is contained in:
Tom Lane 2017-10-14 15:52:00 -04:00
parent 4de2d4fba3
commit 82aff8d336
1 changed files with 6 additions and 5 deletions
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11
src/include/c.h
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@ -644,12 +644,13 @@ typedef NameData *Name;
/*
* Forcing a function not to be inlined can be useful if it's the slow-path of
* a performance critical function, or should be visible in profiles to allow
* for proper cost attribution.
* Forcing a function not to be inlined can be useful if it's the slow path of
* a performance-critical function, or should be visible in profiles to allow
* for proper cost attribution. Note that unlike the pg_attribute_XXX macros
* above, this should be placed before the function's return type and name.
*/
/* GCC, Sunpro and XLC support noinline via __attribute */
#if defined(__GNUC__) || defined(__SUNPRO_C) || defined(__IBMC__)
/* GCC, Sunpro and XLC support noinline via __attribute__ */
#if (defined(__GNUC__) && __GNUC__ > 2) || defined(__SUNPRO_C) || defined(__IBMC__)
#define pg_noinline __attribute__((noinline))
/* msvc via declspec */
#elif defined(_MSC_VER)