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authorRickard Green <[email protected]>2015-11-12 16:15:05 +0100
committerRickard Green <[email protected]>2015-11-12 16:15:05 +0100
commit4f815fab536a3ec1839c2590b8f4f169a27fccac (patch)
tree49d1539f21954ffcdcb2523de1319d2d3efbf0ef /erts/emulator/beam/erl_term.c
parentef72a791f4dc9a1816ac8ff95a612409b86de818 (diff)
parent3ac08f9b668613a4292436979eacc61863c2ab94 (diff)
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Merge branch 'rickard/ohmq/OTP-13047'
* rickard/ohmq/OTP-13047: Fragmented young heap generation and off_heap_message_queue option Refactor GC Introduce literal tag Conflicts: erts/doc/src/erlang.xml erts/emulator/beam/erl_gc.c
Diffstat (limited to 'erts/emulator/beam/erl_term.c')
-rw-r--r--erts/emulator/beam/erl_term.c31
1 files changed, 31 insertions, 0 deletions
diff --git a/erts/emulator/beam/erl_term.c b/erts/emulator/beam/erl_term.c
index ed302fa2fa..e31d3a951d 100644
--- a/erts/emulator/beam/erl_term.c
+++ b/erts/emulator/beam/erl_term.c
@@ -28,6 +28,37 @@
#include <stdlib.h>
#include <stdio.h>
+void
+erts_set_literal_tag(Eterm *term, Eterm *hp_start, Eterm hsz)
+{
+#ifdef TAG_LITERAL_PTR
+ Eterm *hp_end, *hp;
+
+ hp_end = hp_start + hsz;
+ hp = hp_start;
+
+ while (hp < hp_end) {
+ switch (primary_tag(*hp)) {
+ case TAG_PRIMARY_BOXED:
+ case TAG_PRIMARY_LIST:
+ *hp |= TAG_LITERAL_PTR;
+ break;
+ case TAG_PRIMARY_HEADER:
+ if (header_is_thing(*hp)) {
+ hp += thing_arityval(*hp);
+ }
+ break;
+ default:
+ break;
+ }
+
+ hp++;
+ }
+ if (is_boxed(*term) || is_list(*term))
+ *term |= TAG_LITERAL_PTR;
+#endif
+}
+
__decl_noreturn static void __noreturn
et_abort(const char *expr, const char *file, unsigned line)
{