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| author | jfb <jfb@chromium.org> | 2015-03-02 18:49:41 -0800 |
|---|---|---|
| committer | Commit bot <commit-bot@chromium.org> | 2015-03-03 02:50:51 +0000 |
| commit | cff96b94bca1ded99038abd5c744bc075f2532bb (patch) | |
| tree | b52e897405d1c00f287e2a2cb81c372b7e8daa8e /native_client_sdk/src | |
| parent | d52d3afcec84f7e15692971de4b9f31bc236c594 (diff) | |
| download | chromium_src-cff96b94bca1ded99038abd5c744bc075f2532bb.zip chromium_src-cff96b94bca1ded99038abd5c744bc075f2532bb.tar.gz chromium_src-cff96b94bca1ded99038abd5c744bc075f2532bb.tar.bz2 | |
NaCl docs: acquire/release/acq_rel C++11 memory order in Chrome 43 SDK
R= bradnelson@chromium.org
BUG= none
Review URL: https://codereview.chromium.org/971493004
Cr-Commit-Position: refs/heads/master@{#318820}
Diffstat (limited to 'native_client_sdk/src')
| -rw-r--r-- | native_client_sdk/src/doc/sdk/release-notes.rst | 34 |
1 files changed, 17 insertions, 17 deletions
diff --git a/native_client_sdk/src/doc/sdk/release-notes.rst b/native_client_sdk/src/doc/sdk/release-notes.rst index f3ccf15..06eb857 100644 --- a/native_client_sdk/src/doc/sdk/release-notes.rst +++ b/native_client_sdk/src/doc/sdk/release-notes.rst @@ -8,15 +8,15 @@ The dates in the following release notes denote when Chrome and the NaCl SDK reached canary status. The stable release is typically 6 weeks later. -.. Chrome/Pepper 43 (03 April 2015) -.. =================================== -.. -.. PNaCl -.. ----- -.. -.. * The C11/C++11 `acquire`, `release`, and `acq_rel` memory orders are now - generated by default. The in-browser Chrome 42 translator supports them, the - SDK can therefore generate them. +Chrome/Pepper 43 (03 April 2015) +================================ + +PNaCl +----- + +* The C11/C++11 ``acquire``, ``release``, and ``acq_rel`` memory orders are now + generated by default. The in-browser Chrome 42 translator supports them, the + SDK can therefore generate them. Chrome/Pepper 42 (20 February 2015) =================================== @@ -34,18 +34,18 @@ NaCl ---- * The x86 NaCl validators accept instructions from the FMA3 extensions, as well - as AVX2 instructions (except `VGATHER`). + as AVX2 instructions (except ``VGATHER``). PNaCl ----- -* PNaCl supports C11/C++11 memory orders `acquire`, `release`, and `acq_rel`. It - used to upgrade all accesses to `seq_cst`. It still upgrades `consume` to - `acquire` (no compiler currently implements `consume`), and `relaxed` to - `seq_cst` (to conservatively avoid platform differences due to out-of-thin-air - problems). This is currently disabled by default in the SDK so that the - in-browser translator installed on users' machines has time to gain this - support. Developers can turn it on by passing the +* PNaCl supports C11/C++11 memory orders ``acquire``, ``release``, and + ``acq_rel``. It used to upgrade all accesses to ``seq_cst``. It still upgrades + ``consume`` to ``acquire`` (no compiler currently implements ``consume``), and + ``relaxed`` to ``seq_cst`` (to conservatively avoid platform differences due + to out-of-thin-air problems). This is currently disabled by default in the SDK + so that the in-browser translator installed on users' machines has time to + gain this support. Developers can turn it on by passing the ``-pnacl-memory-order-seq-cst-only=false`` flag to ``opt``. * PNaCl handles nested struct type expansion, which allows it to better support non-C languages such as Rust. |