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Disabling write barrier, not needed for pairs

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This commit is contained in:
Justin Ethier 2015-03-09 22:01:46 -04:00
parent d73f20ea4c
commit 30cf7b58a4
1 changed files with 3 additions and 6 deletions
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9
runtime.h
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@ -429,7 +429,6 @@ static object find_or_add_symbol(const char *name){
/* Write Barrier /* Write Barrier
This is necessary when a mutation (EG: set-car!) occurs, because otherwise This is necessary when a mutation (EG: set-car!) occurs, because otherwise
if the new value is on the stack, it will never be transported to the heap. if the new value is on the stack, it will never be transported to the heap.
*/
list write_barrier = nil; list write_barrier = nil;
static void add_to_write_barrier(object obj); static void add_to_write_barrier(object obj);
@ -460,7 +459,7 @@ static void clear_write_barrier() {
} }
write_barrier = nil; write_barrier = nil;
} }
/* END write barrier */ * END write barrier */
/* Global variables. */ /* Global variables. */
@ -796,13 +795,11 @@ static object Cyc_eq(object x, object y) {
} }
static object Cyc_set_car(object l, object val) { static object Cyc_set_car(object l, object val) {
//add_to_write_barrier(val);
((list)l)->cons_car = val; ((list)l)->cons_car = val;
return l; return l;
} }
static object Cyc_set_cdr(object l, object val) { static object Cyc_set_cdr(object l, object val) {
//add_to_write_barrier(val);
((list)l)->cons_cdr = val; ((list)l)->cons_cdr = val;
return l; return l;
} }
@ -1753,8 +1750,8 @@ static void GC_loop(int major, closure cont, object *ans, int num_ans)
#endif #endif
/* Transport global variables. */ /* Transport global variables. */
transp_write_barrier(); // transp_write_barrier();
clear_write_barrier(); /* Reset for next time */ // clear_write_barrier(); /* Reset for next time */
transp(Cyc_global_variables); /* Internal global used by the runtime */ transp(Cyc_global_variables); /* Internal global used by the runtime */
GC_GLOBALS GC_GLOBALS
while (scanp<allocp) /* Scan the newspace. */ while (scanp<allocp) /* Scan the newspace. */