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| author | Juneyoung Lee <aqjune@gmail.com> | 2020-02-27 14:14:40 +0900 |
|---|---|---|
| committer | Juneyoung Lee <aqjune@gmail.com> | 2020-02-27 21:41:48 +0900 |
| commit | 3b6f4c544be48dcfa663cfb62da3fd4e779954a5 (patch) | |
| tree | a6c7e51f1a3de8624cb790621cd3e5ed5549feb1 | |
| parent | 8f2858eb07085e13544316abfd3c0e90cef3eb93 (diff) | |
| download | bcm5719-llvm-3b6f4c544be48dcfa663cfb62da3fd4e779954a5.tar.gz bcm5719-llvm-3b6f4c544be48dcfa663cfb62da3fd4e779954a5.zip | |
[ReleaseNotes] Mention freeze instruction
Reviewers: hans, nlopes, regehr
Subscribers: llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D75226
| -rw-r--r-- | llvm/docs/ReleaseNotes.rst | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/llvm/docs/ReleaseNotes.rst b/llvm/docs/ReleaseNotes.rst index 69a055aeef6..a788f8f6004 100644 --- a/llvm/docs/ReleaseNotes.rst +++ b/llvm/docs/ReleaseNotes.rst @@ -86,8 +86,8 @@ Non-comprehensive list of changes in this release * Windows Control Flow Guard: the ``-cfguard`` option now emits CFG checks on - indirect function calls. The previous behavior is still available with the - ``-cfguard-nochecks`` option. Note that this feature should always be used + indirect function calls. The previous behavior is still available with the + ``-cfguard-nochecks`` option. Note that this feature should always be used with optimizations enabled. * ``Callbacks`` have been added to ``CommandLine Options``. These can @@ -123,6 +123,10 @@ Changes to the LLVM IR that correctly converted 80-90% of Clang tests. Some manual work will almost certainly still be needed. +* A new `freeze` instruction is added. The `freeze` instruction is used to stop + IR-level propagation of undef and poison values. Currently its support is + preliminary; a freeze-equivalent operation for SelDag/MIR needs to be added. + Changes to building LLVM ------------------------ |
