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Remove hardcoded ebx

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[SVN r28017]
This commit is contained in:
Peter Dimov
2005-04-06 14:12:40 +00:00
parent 6ab6b66601
commit d24f6d3b97
1 changed files with 11 additions and 11 deletions
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22
include/boost/detail/sp_counted_base_gcc_x86.hpp
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@ -68,11 +68,11 @@ inline void atomic_increment( int * pw )
inline int atomic_conditional_increment( int * pw )
{
// int r = *pw;
// if( r != 0 ) ++*pw;
// return r;
// int rv = *pw;
// if( rv != 0 ) ++*pw;
// return rv;
int r;
int rv, tmp;
__asm__
(
@ -80,18 +80,18 @@ inline int atomic_conditional_increment( int * pw )
"0:\n\t"
"test %%eax, %%eax\n\t"
"je 1f\n\t"
"movl %%eax, %%ebx\n\t"
"incl %%ebx\n\t"
"movl %%eax, %2\n\t"
"incl %2\n\t"
"lock\n\t"
"cmpxchgl %%ebx, %0\n\t"
"cmpxchgl %2, %0\n\t"
"jne 0b\n\t"
"1:":
"=m"( *pw ), "=&a"( r ): // outputs (%0, %1)
"m"( *pw ): // input (%2)
"ebx", "cc" // clobbers
"=m"( *pw ), "=&a"( rv ), "=&r"( tmp ): // outputs (%0, %1, %2)
"m"( *pw ): // input (%3)
"cc" // clobbers
);
return r;
return rv;
}
class sp_counted_base