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Slight optimization for scm_equal_p

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* libguile/eq.c (scm_equal_p): Move SCM_STRUCTP check within the default
  case of the SCM_TYP7 switch statement, for optimization.
This commit is contained in:
Mark H Weaver 2011-02-10 19:38:49 -05:00 • committed by Andy Wingo
parent a8da6d9338
commit f135fc3eda
1 changed files with 8 additions and 8 deletions
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16
libguile/eq.c
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@ -332,6 +332,14 @@ scm_equal_p (SCM x, SCM y)
switch (SCM_TYP7 (x)) switch (SCM_TYP7 (x))
{ {
default: default:
/* Check equality between structs of equal type (see cell-type test above). */
if (SCM_STRUCTP (x))
{
if (SCM_INSTANCEP (x))
goto generic_equal;
else
return scm_i_struct_equalp (x, y);
}
break; break;
case scm_tc7_number: case scm_tc7_number:
switch SCM_TYP16 (x) switch SCM_TYP16 (x)
@ -349,14 +357,6 @@ scm_equal_p (SCM x, SCM y)
case scm_tc7_wvect: case scm_tc7_wvect:
return scm_i_vector_equal_p (x, y); return scm_i_vector_equal_p (x, y);
} }
/* Check equality between structs of equal type (see cell-type test above). */
if (SCM_STRUCTP (x))
{
if (SCM_INSTANCEP (x))
goto generic_equal;
else
return scm_i_struct_equalp (x, y);
}
/* Otherwise just return false. Dispatching to the generic is the wrong thing /* Otherwise just return false. Dispatching to the generic is the wrong thing
here, as we can hit this case for any two objects of the same type that we here, as we can hit this case for any two objects of the same type that we