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| author | Benjamin Kramer <benny.kra@googlemail.com> | 2011-11-26 11:14:54 +0000 |
|---|---|---|
| committer | Benjamin Kramer <benny.kra@googlemail.com> | 2011-11-26 11:14:54 +0000 |
| commit | 933a78c0d94b8d059cedc24dd5c14b5fe7b04c42 (patch) | |
| tree | 1bc9821770f38315cac21adcddd028b8ee099cc6 /docs/ReleaseNotes.html | |
| parent | 553284e69a08cc9177eff70815bc6d6681077711 (diff) | |
| download | external_llvm-933a78c0d94b8d059cedc24dd5c14b5fe7b04c42.zip external_llvm-933a78c0d94b8d059cedc24dd5c14b5fe7b04c42.tar.gz external_llvm-933a78c0d94b8d059cedc24dd5c14b5fe7b04c42.tar.bz2 | |
Move the branch probability blurb into the optimizer section. Add a minimal bullet for AVX.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145145 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'docs/ReleaseNotes.html')
| -rw-r--r-- | docs/ReleaseNotes.html | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/docs/ReleaseNotes.html b/docs/ReleaseNotes.html index 54a53c3..733c1bf 100644 --- a/docs/ReleaseNotes.html +++ b/docs/ReleaseNotes.html @@ -771,8 +771,6 @@ be used to verify some algorithms. Pass manager extension API. -Information about branch probability and basic block frequency is now available within LLVM based on a combination of static branch prediction heuristics and __builtin_expect calls. That information is currently used for register spill placement and if-conversion, with additional optimizations planned for future releases. The same frameworks are intended for eventual use with profile-guided optimization, but that is not yet implemented. - --> <ul> @@ -943,9 +941,13 @@ Builder.CreateResume(UnwindData); optimizers:</p> <ul> -<!-- -<li></li> ---> +<li>Information about <a href="BranchWeightMetadata.html">branch probability</a> + and basic block frequency is now available within LLVM, based on a + combination of static branch prediction heuristics and + <code>__builtin_expect</code> calls. That information is currently used for + register spill placement and if-conversion, with additional optimizations + planned for future releases. The same framework is intended for eventual + use with profile-guided optimization.</li> </li> </ul> @@ -1010,6 +1012,8 @@ compiler and provides better integration with the platform ABI as a result.</p> <p>New features and major changes in the X86 target include:</p> <ul> + <li>The X86 backend, assembler and disassembler now completely support AVX. + To enable it pass <code>-mavx</code> to the compiler.</li> <li>The X86 backend now supports all <a href="http://llvm.org/PR879">inline assembly that uses the X86 |