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gc.c: reduce size slightly by making MEMOP_TYPE_MALLOC zero

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Most (if not all) architectures have instructions for comparing
against zero, allowing compilers to generate more compact code.

Other MEMOP_TYPE_* enum values are not compared in hot paths,
but MEMOP_TYPE_MALLOC is checked in objspace_malloc_increase

   text	   data	    bss	    dec	    hex	filename
  84088	    264	   3664	  88016	  157d0	gc-before.o
  83784	    264	   3664	  87712	  156a0	gc.o

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63546 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
normal 2018-06-01 21:23:20 +00:00
parent afbf10e8c6
commit 3eb12cb688
1 changed files with 3 additions and 3 deletions
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6
gc.c
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@ -7785,9 +7785,9 @@ objspace_malloc_size(rb_objspace_t *objspace, void *ptr, size_t hint)
}
enum memop_type {
MEMOP_TYPE_MALLOC = 1,
MEMOP_TYPE_FREE = 2,
MEMOP_TYPE_REALLOC = 3
MEMOP_TYPE_MALLOC = 0,
MEMOP_TYPE_FREE,
MEMOP_TYPE_REALLOC
};
static inline void