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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 ) inline int atomic_conditional_increment( int * pw )
{ {
// int r = *pw; // int rv = *pw;
// if( r != 0 ) ++*pw; // if( rv != 0 ) ++*pw;
// return r; // return rv;
int r; int rv, tmp;
__asm__ __asm__
( (
@@ -80,18 +80,18 @@ inline int atomic_conditional_increment( int * pw )
"0:\n\t" "0:\n\t"
"test %%eax, %%eax\n\t" "test %%eax, %%eax\n\t"
"je 1f\n\t" "je 1f\n\t"
"movl %%eax, %%ebx\n\t" "movl %%eax, %2\n\t"
"incl %%ebx\n\t" "incl %2\n\t"
"lock\n\t" "lock\n\t"
"cmpxchgl %%ebx, %0\n\t" "cmpxchgl %2, %0\n\t"
"jne 0b\n\t" "jne 0b\n\t"
"1:": "1:":
"=m"( *pw ), "=&a"( r ): // outputs (%0, %1) "=m"( *pw ), "=&a"( rv ), "=&r"( tmp ): // outputs (%0, %1, %2)
"m"( *pw ): // input (%2) "m"( *pw ): // input (%3)
"ebx", "cc" // clobbers "cc" // clobbers
); );
return r; return rv;
} }
class sp_counted_base class sp_counted_base