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| author | Mazdak Farrokhzad <twingoow@gmail.com> | 2019-10-13 19:17:04 +0200 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2019-10-13 19:17:04 +0200 |
| commit | 7c20a8ddb8efd3998dc4de049ff69e3161a01788 (patch) | |
| tree | ca04dbf4f749320ed2a57f7e9a0e97eca43bdd95 /src/libsyntax | |
| parent | aa2ae564d391a3da10bca2a79ab529a9925fbe58 (diff) | |
| parent | dfe76a10935cf93fdc72abc47167691b7aa44a7f (diff) | |
Rollup merge of #65214 - Amanieu:cfg_atomic, r=alexcrichton
Split non-CAS atomic support off into target_has_atomic_load_store This PR implements my proposed changes in https://github.com/rust-lang/rust/issues/32976#issuecomment-518542029 by removing `target_has_atomic = "cas"` and splitting `target_has_atomic` into two separate `cfg`s: * `target_has_atomic = 8/16/32/64/128`: This indicates the largest width that the target can atomically CAS (which implies support for all atomic operations). * ` target_has_atomic_load_store = 8/16/32/64/128`: This indicates the largest width that the target can support loading or storing atomically (but may not support CAS). cc #32976 r? @alexcrichton
Diffstat (limited to 'src/libsyntax')
| -rw-r--r-- | src/libsyntax/feature_gate/builtin_attrs.rs | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/src/libsyntax/feature_gate/builtin_attrs.rs b/src/libsyntax/feature_gate/builtin_attrs.rs index ae23cc5cb93..ab1620b9524 100644 --- a/src/libsyntax/feature_gate/builtin_attrs.rs +++ b/src/libsyntax/feature_gate/builtin_attrs.rs @@ -29,6 +29,7 @@ const GATED_CFGS: &[(Symbol, Symbol, GateFn)] = &[ // (name in cfg, feature, function to check if the feature is enabled) (sym::target_thread_local, sym::cfg_target_thread_local, cfg_fn!(cfg_target_thread_local)), (sym::target_has_atomic, sym::cfg_target_has_atomic, cfg_fn!(cfg_target_has_atomic)), + (sym::target_has_atomic_load_store, sym::cfg_target_has_atomic, cfg_fn!(cfg_target_has_atomic)), (sym::rustdoc, sym::doc_cfg, cfg_fn!(doc_cfg)), (sym::doctest, sym::cfg_doctest, cfg_fn!(cfg_doctest)), ]; |