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| author | Björn Gustavsson <[email protected]> | 2018-02-01 15:59:02 +0100 |
|---|---|---|
| committer | GitHub <[email protected]> | 2018-02-01 15:59:02 +0100 |
| commit | 18d9afbd5c62bb7b7237fe0d580fc05737a096c1 (patch) | |
| tree | d68c29a4d077ce205982a114d65d738e600ec7ea /erts/emulator | |
| parent | bb0b3c7252119604cf3e8c9ba78d20000e06f4ea (diff) | |
| parent | fbcff5a137e37edd80aca9c5fe18ce6880648169 (diff) | |
| download | otp-18d9afbd5c62bb7b7237fe0d580fc05737a096c1.tar.gz otp-18d9afbd5c62bb7b7237fe0d580fc05737a096c1.tar.bz2 otp-18d9afbd5c62bb7b7237fe0d580fc05737a096c1.zip | |
Merge pull request #1701 from bjorng/bjorn/get_hd_tl
Eliminate get_list/3 internally in the compiler
Diffstat (limited to 'erts/emulator')
| -rw-r--r-- | erts/emulator/beam/instrs.tab | 10 | ||||
| -rw-r--r-- | erts/emulator/beam/ops.tab | 3 |
2 files changed, 13 insertions, 0 deletions
diff --git a/erts/emulator/beam/instrs.tab b/erts/emulator/beam/instrs.tab index f19027b1ec..6a531fcc09 100644 --- a/erts/emulator/beam/instrs.tab +++ b/erts/emulator/beam/instrs.tab @@ -322,6 +322,16 @@ get_list(Src, Hd, Tl) { $Tl = tl; } +get_hd(Src, Hd) { + Eterm* tmp_ptr = list_val($Src); + $Hd = CAR(tmp_ptr); +} + +get_tl(Src, Tl) { + Eterm* tmp_ptr = list_val($Src); + $Tl = CDR(tmp_ptr); +} + i_get(Src, Dst) { $Dst = erts_pd_hash_get(c_p, $Src); } diff --git a/erts/emulator/beam/ops.tab b/erts/emulator/beam/ops.tab index 1f4a8eadb0..77e375f2c0 100644 --- a/erts/emulator/beam/ops.tab +++ b/erts/emulator/beam/ops.tab @@ -182,6 +182,9 @@ get_list r x y get_list r y r get_list r x r +get_hd xy xy +get_tl xy xy + # Old-style catch. catch y f catch_end y |