diff options
Diffstat (limited to 'erts/emulator/beam/ops.tab')
| -rw-r--r-- | erts/emulator/beam/ops.tab | 49 |
1 files changed, 39 insertions, 10 deletions
diff --git a/erts/emulator/beam/ops.tab b/erts/emulator/beam/ops.tab index fdc4506351..92e67bb470 100644 --- a/erts/emulator/beam/ops.tab +++ b/erts/emulator/beam/ops.tab @@ -1299,23 +1299,52 @@ apply I apply_last I P # -# Map instructions in R17. +# Handle compatibility with OTP 17 here. # -sorted_put_map_assoc/5 -put_map_assoc F Map Dst Live Size Rest=* | map_key_sort(Size, Rest) => \ - sorted_put_map_assoc F Map Dst Live Size Rest +i_put_map_assoc/4 + +# We KNOW that in OTP 20 (actually OTP 18 and higher), a put_map_assoc instruction +# is always preceded by an is_map test. That means that put_map_assoc can never +# fail and does not need any failure label. + +put_map_assoc Fail Map Dst Live Size Rest=* | compiled_with_otp_20_or_higher() => \ + i_put_map_assoc Map Dst Live Size Rest + +# Translate the put_map_assoc instruction if the module was compiled by a compiler +# before 20. This is only necessary if the OTP 17 compiler was used, but we +# have no safe and relatively easy way to know whether OTP 18/19 was used. + +put_map_assoc Fail=p Map Dst Live Size Rest=* => \ + ensure_map Map | i_put_map_assoc Map Dst Live Size Rest +put_map_assoc Fail=f Map Dst Live Size Rest=* => \ + is_map Fail Map | i_put_map_assoc Map Dst Live Size Rest + +ensure_map Lit=q | literal_is_map(Lit) => +ensure_map Src=cqy => move Src x | ensure_map x + +%cold +ensure_map x +%hot + +# +# Map instructions. First introduced in R17. +# + +sorted_put_map_assoc/4 +i_put_map_assoc Map Dst Live Size Rest=* | map_key_sort(Size, Rest) => \ + sorted_put_map_assoc Map Dst Live Size Rest sorted_put_map_exact/5 put_map_exact F Map Dst Live Size Rest=* | map_key_sort(Size, Rest) => \ sorted_put_map_exact F Map Dst Live Size Rest -sorted_put_map_assoc j Map Dst Live Size Rest=* | is_empty_map(Map) => \ +sorted_put_map_assoc Map Dst Live Size Rest=* | is_empty_map(Map) => \ new_map Dst Live Size Rest -sorted_put_map_assoc F Src=s Dst Live Size Rest=* => \ - update_map_assoc F Src Dst Live Size Rest -sorted_put_map_assoc F Src Dst Live Size Rest=* => \ - move Src x | update_map_assoc F x Dst Live Size Rest +sorted_put_map_assoc Src=s Dst Live Size Rest=* => \ + update_map_assoc Src Dst Live Size Rest +sorted_put_map_assoc Src Dst Live Size Rest=* => \ + move Src x | update_map_assoc x Dst Live Size Rest sorted_put_map_exact F Src=s Dst Live Size Rest=* => \ update_map_exact F Src Dst Live Size Rest @@ -1327,7 +1356,7 @@ new_map Dst Live Size Rest=* | is_small_map_literal_keys(Size, Rest) => \ new_map d I I i_new_small_map_lit d I q -update_map_assoc j s d I I +update_map_assoc s d I I update_map_exact j s d I I is_map Fail Lit=q | literal_is_map(Lit) => |