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Fix -Wundef warnings for RBIMPL_HAS_BUILTIN

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* See [Feature #17752]
* Defining explicitly to 0 seems the best solution, see https://github.com/ruby/ruby/pull/4428
* For example:
./include/ruby/internal/has/builtin.h:49:33: error: "RBIMPL_HAS_BUILTIN___builtin_assume" is not defined, evaluates to 0 [-Werror=undef]
   49 | # define RBIMPL_HAS_BUILTIN(_) (RBIMPL_HAS_BUILTIN_ ## _)
      |                                 ^~~~~~~~~~~~~~~~~~~
./include/ruby/internal/assume.h:75:7: note: in expansion of macro ‘RBIMPL_HAS_BUILTIN’
   75 | #elif RBIMPL_HAS_BUILTIN(__builtin_assume)
      |       ^~~~~~~~~~~~~~~~~~
This commit is contained in:
Benoit Daloze 2021-04-29 15:30:31 +02:00
parent f108bc32af
commit d09988502e
1 changed files with 15 additions and 0 deletions
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15
include/ruby/internal/has/builtin.h
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@ -50,6 +50,7 @@
# define RBIMPL_HAS_BUILTIN___builtin_add_overflow RBIMPL_COMPILER_SINCE(GCC, 5, 1, 0)
# define RBIMPL_HAS_BUILTIN___builtin_alloca RBIMPL_COMPILER_SINCE(GCC, 0, 0, 0)
# define RBIMPL_HAS_BUILTIN___builtin_alloca_with_align RBIMPL_COMPILER_SINCE(GCC, 6, 1, 0)
# define RBIMPL_HAS_BUILTIN___builtin_assume 0
# /* See http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52624 for bswap16. */
# define RBIMPL_HAS_BUILTIN___builtin_bswap16 RBIMPL_COMPILER_SINCE(GCC, 4, 8, 0)
# define RBIMPL_HAS_BUILTIN___builtin_bswap32 RBIMPL_COMPILER_SINCE(GCC, 3, 6, 0)
@ -67,6 +68,10 @@
# define RBIMPL_HAS_BUILTIN___builtin_popcount RBIMPL_COMPILER_SINCE(GCC, 3, 6, 0)
# define RBIMPL_HAS_BUILTIN___builtin_popcountl RBIMPL_COMPILER_SINCE(GCC, 3, 6, 0)
# define RBIMPL_HAS_BUILTIN___builtin_popcountll RBIMPL_COMPILER_SINCE(GCC, 3, 6, 0)
# define RBIMPL_HAS_BUILTIN___builtin_rotateleft32 0
# define RBIMPL_HAS_BUILTIN___builtin_rotateleft64 0
# define RBIMPL_HAS_BUILTIN___builtin_rotateright32 0
# define RBIMPL_HAS_BUILTIN___builtin_rotateright64 0
# define RBIMPL_HAS_BUILTIN___builtin_sub_overflow RBIMPL_COMPILER_SINCE(GCC, 5, 1, 0)
# define RBIMPL_HAS_BUILTIN___builtin_unreachable RBIMPL_COMPILER_SINCE(GCC, 4, 5, 0)
# /* Note that "0, 0, 0" might be inaccurate. */
@ -79,7 +84,9 @@
# /* Take config.h definition when available */
# define RBIMPL_HAS_BUILTIN(_) ((RBIMPL_HAS_BUILTIN_ ## _)+0)
# define RBIMPL_HAS_BUILTIN___builtin_add_overflow HAVE_BUILTIN___BUILTIN_ADD_OVERFLOW
# define RBIMPL_HAS_BUILTIN___builtin_alloca 0
# define RBIMPL_HAS_BUILTIN___builtin_alloca_with_align HAVE_BUILTIN___BUILTIN_ALLOCA_WITH_ALIGN
# define RBIMPL_HAS_BUILTIN___builtin_assume 0
# define RBIMPL_HAS_BUILTIN___builtin_assume_aligned HAVE_BUILTIN___BUILTIN_ASSUME_ALIGNED
# define RBIMPL_HAS_BUILTIN___builtin_bswap16 HAVE_BUILTIN___BUILTIN_BSWAP16
# define RBIMPL_HAS_BUILTIN___builtin_bswap32 HAVE_BUILTIN___BUILTIN_BSWAP32
@ -89,15 +96,23 @@
# define RBIMPL_HAS_BUILTIN___builtin_clzll HAVE_BUILTIN___BUILTIN_CLZLL
# define RBIMPL_HAS_BUILTIN___builtin_constant_p HAVE_BUILTIN___BUILTIN_CONSTANT_P
# define RBIMPL_HAS_BUILTIN___builtin_ctz HAVE_BUILTIN___BUILTIN_CTZ
# define RBIMPL_HAS_BUILTIN___builtin_ctzl 0
# define RBIMPL_HAS_BUILTIN___builtin_ctzll HAVE_BUILTIN___BUILTIN_CTZLL
# define RBIMPL_HAS_BUILTIN___builtin_expect HAVE_BUILTIN___BUILTIN_EXPECT
# define RBIMPL_HAS_BUILTIN___builtin_mul_overflow HAVE_BUILTIN___BUILTIN_MUL_OVERFLOW
# define RBIMPL_HAS_BUILTIN___builtin_mul_overflow_p HAVE_BUILTIN___BUILTIN_MUL_OVERFLOW_P
# define RBIMPL_HAS_BUILTIN___builtin_popcount HAVE_BUILTIN___BUILTIN_POPCOUNT
# define RBIMPL_HAS_BUILTIN___builtin_popcountl 0
# define RBIMPL_HAS_BUILTIN___builtin_rotateleft32 0
# define RBIMPL_HAS_BUILTIN___builtin_rotateleft64 0
# define RBIMPL_HAS_BUILTIN___builtin_rotateright32 0
# define RBIMPL_HAS_BUILTIN___builtin_rotateright64 0
# define RBIMPL_HAS_BUILTIN___builtin_popcountll HAVE_BUILTIN___BUILTIN_POPCOUNTLL
# define RBIMPL_HAS_BUILTIN___builtin_sub_overflow HAVE_BUILTIN___BUILTIN_SUB_OVERFLOW
# if defined(UNREACHABLE)
# define RBIMPL_HAS_BUILTIN___builtin_unreachable 1
# else
# define RBIMPL_HAS_BUILTIN___builtin_unreachable 0
# endif
#endif