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authorSverker Eriksson <[email protected]>2015-01-16 21:25:50 +0100
committerBjörn-Egil Dahlberg <[email protected]>2015-03-12 18:56:40 +0100
commit2dfa8ceaf30d69c9e5753b706dafe741b3cda4ca (patch)
treea2378750aa22ef900084b03d376e728f55b6dae4 /erts/emulator/beam
parent96f6e470284858f1b8644ea949283dad24161dfe (diff)
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erts: Add matching of hashmaps
Diffstat (limited to 'erts/emulator/beam')
-rw-r--r--erts/emulator/beam/utils.c26
1 files changed, 26 insertions, 0 deletions
diff --git a/erts/emulator/beam/utils.c b/erts/emulator/beam/utils.c
index b341c4d949..cea20a6002 100644
--- a/erts/emulator/beam/utils.c
+++ b/erts/emulator/beam/utils.c
@@ -2325,6 +2325,32 @@ tailrecur_ne:
}
break; /* not equal */
}
+ case HASHMAP_SUBTAG:
+ {
+ if (!is_boxed(b) || *boxed_val_rel(b,b_base) != hdr)
+ goto not_equal;
+
+ aa = hashmap_val_rel(a, a_base) + 1;
+ bb = hashmap_val_rel(b, b_base) + 1;
+ switch (hdr & _HEADER_MAP_SUBTAG_MASK) {
+ case HAMT_SUBTAG_HEAD_ARRAY:
+ aa++; bb++;
+ case HAMT_SUBTAG_NODE_ARRAY:
+ sz = 16;
+ break;
+ case HAMT_SUBTAG_HEAD_BITMAP:
+ aa++; bb++;
+ case HAMT_SUBTAG_NODE_BITMAP:
+ sz = hashmap_bitcount(MAP_HEADER_VAL(hdr));
+ ASSERT(sz > 0 && sz < 16);
+ break;
+ default:
+ erl_exit(1, "Unknown hashmap subsubtag\n");
+ }
+ goto term_array;
+ }
+ default:
+ ASSERT(!"Unknown boxed subtab in EQ");
}
break;
}