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Check if __assume is supported

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This commit is contained in:
Nobuyoshi Nakada 2022-02-19 21:22:13 +09:00
parent 131154f878
commit 7470780058
Notes: git 2022-02-19 23:33:11 +09:00 
Merged: https://github.com/ruby/ruby/pull/5577
4 changed files with 14 additions and 6 deletions
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12
configure.ac
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@ -1679,6 +1679,18 @@ AS_IF([test "$GCC" = yes], [
AS_IF([test "$rb_cv_func___builtin_unreachable" = yes], [ AS_IF([test "$rb_cv_func___builtin_unreachable" = yes], [
AC_DEFINE(HAVE___BUILTIN_UNREACHABLE) AC_DEFINE(HAVE___BUILTIN_UNREACHABLE)
]) ])
AC_CACHE_CHECK(for __assume, rb_cv_func___assume,
[RUBY_WERROR_FLAG([
AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
[[__assume(1);]])],
[rb_cv_func___assume=yes],
[rb_cv_func___assume=no])
])
])
AS_IF([test "$rb_cv_func___assume" = yes], [
AC_DEFINE(HAVE___ASSUME)
])
} }
AC_CACHE_CHECK(for exported function attribute, rb_cv_func_exported, [ AC_CACHE_CHECK(for exported function attribute, rb_cv_func_exported, [

1
include/ruby/backward/2/assume.h
View file

@ -24,7 +24,6 @@
#include "ruby/internal/assume.h" #include "ruby/internal/assume.h"
#include "ruby/internal/has/builtin.h" #include "ruby/internal/has/builtin.h"
#undef ASSUME /* Kill config.h definition */
#define ASSUME RBIMPL_ASSUME /**< @old{RBIMPL_ASSUME} */ #define ASSUME RBIMPL_ASSUME /**< @old{RBIMPL_ASSUME} */
#define UNREACHABLE RBIMPL_UNREACHABLE() /**< @old{RBIMPL_UNREACHABLE} */ #define UNREACHABLE RBIMPL_UNREACHABLE() /**< @old{RBIMPL_UNREACHABLE} */
#define UNREACHABLE_RETURN RBIMPL_UNREACHABLE_RETURN /**< @old{RBIMPL_UNREACHABLE_RETURN} */ #define UNREACHABLE_RETURN RBIMPL_UNREACHABLE_RETURN /**< @old{RBIMPL_UNREACHABLE_RETURN} */

5
include/ruby/internal/assume.h
View file

@ -32,10 +32,7 @@
#include "ruby/internal/warning_push.h" #include "ruby/internal/warning_push.h"
/** @cond INTERNAL_MACRO */ /** @cond INTERNAL_MACRO */
#if RBIMPL_COMPILER_SINCE(MSVC, 13, 10, 0) #if defined(HAVE___ASSUME)
# define RBIMPL_HAVE___ASSUME
#elif RBIMPL_COMPILER_SINCE(Intel, 13, 0, 0)
# define RBIMPL_HAVE___ASSUME # define RBIMPL_HAVE___ASSUME
#endif #endif
/** @endcond */ /** @endcond */

2
win32/Makefile.sub
View file

@ -702,7 +702,7 @@ $(CONFIG_H): $(MKFILES) $(srcdir)/win32/Makefile.sub $(win_srcdir)/Makefile.sub
#define ALWAYS_INLINE(x) __forceinline x #define ALWAYS_INLINE(x) __forceinline x
#define WARN_UNUSED_RESULT(x) x #define WARN_UNUSED_RESULT(x) x
#define MAYBE_UNUSED(x) x #define MAYBE_UNUSED(x) x
#define ASSUME(x) __assume(!!(x)) #define HAVE___ASSUME 1
#define FUNC_STDCALL(x) __stdcall x #define FUNC_STDCALL(x) __stdcall x
#define FUNC_CDECL(x) __cdecl x #define FUNC_CDECL(x) __cdecl x
#define FUNC_FASTCALL(x) __fastcall x #define FUNC_FASTCALL(x) __fastcall x