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eval_intern.h: prevent core dump with clang and make test-all 

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61041 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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mame 2017-12-06 03:19:17 +00:00
parent 0e34638f79
commit 3af095f84c
1 changed files with 5 additions and 1 deletions
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6
eval_intern.h
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@ -144,7 +144,11 @@ LONG WINAPI rb_w32_stack_overflow_handler(struct _EXCEPTION_POINTERS *);
#define EC_REPUSH_TAG() (void)(_ec->tag = &_tag) #define EC_REPUSH_TAG() (void)(_ec->tag = &_tag)
#if defined __GNUC__ && __GNUC__ == 4 && (__GNUC_MINOR__ >= 6 && __GNUC_MINOR__ <= 8) #if defined __GNUC__ && __GNUC__ == 4 && (__GNUC_MINOR__ >= 6 && __GNUC_MINOR__ <= 8) || __clang__
/* This macro prevents GCC 4.6--4.8 from emitting maybe-uninitialized warnings.
* This macro also prevents Clang from dumping core in EC_EXEC_TAG().
* (I confirmed Clang 4.0.1 and 4.0.0.)
*/
# define VAR_FROM_MEMORY(var) __extension__(*(__typeof__(var) volatile *)&(var)) # define VAR_FROM_MEMORY(var) __extension__(*(__typeof__(var) volatile *)&(var))
# define VAR_INITIALIZED(var) ((var) = VAR_FROM_MEMORY(var)) # define VAR_INITIALIZED(var) ((var) = VAR_FROM_MEMORY(var))
# define VAR_NOCLOBBERED(var) volatile var # define VAR_NOCLOBBERED(var) volatile var