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fix 3m GC for large tagged atomic objects (such as symbols)

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svn: r4683
This commit is contained in:
Matthew Flatt 2006-10-26 03:21:35 +00:00
parent 23882b3fac
commit 4168ac3164
1 changed files with 16 additions and 2 deletions
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18
src/mzscheme/gc2/newgc.c
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@ -1583,7 +1583,14 @@ inline static void mark_acc_big_page(struct mpage *page)
void **end = PPTR(NUM(page) + page->size);
switch(page->page_type) {
case PAGE_TAGGED: mark_table[*(unsigned short*)start](start); break;
case PAGE_TAGGED:
{
unsigned short tag = *(unsigned short*)start;
if((unsigned long)mark_table[tag] < PAGE_TYPES) {
/* atomic */
} else
mark_table[tag](start); break;
}
case PAGE_ATOMIC: break;
case PAGE_ARRAY: while(start < end) gcMARK(*(start++)); break;
case PAGE_XTAGGED: GC_mark_xtagged(start); break;
@ -2022,7 +2029,14 @@ inline static void internal_mark(void *p)
set_backtrace_source(start, page->page_type);
switch(page->page_type) {
case PAGE_TAGGED: mark_table[*(unsigned short*)start](start); break;
case PAGE_TAGGED:
{
unsigned short tag = *(unsigned short*)start;
if((unsigned long)mark_table[tag] < PAGE_TYPES) {
/* atomic */
} else
mark_table[tag](start); break;
}
case PAGE_ATOMIC: break;
case PAGE_ARRAY: while(start < end) gcMARK(*(start++)); break;
case PAGE_XTAGGED: GC_mark_xtagged(start); break;