diff options
| author | Amaury Sechet <deadalnix@gmail.com> | 2018-06-01 13:21:33 +0000 |
|---|---|---|
| committer | Amaury Sechet <deadalnix@gmail.com> | 2018-06-01 13:21:33 +0000 |
| commit | 876db10e96ef84432da66de35d62d96f377d228f (patch) | |
| tree | 9f79a9e844bd8c1654849d692d120ba48a1289a9 /docs/ReleaseNotes.rst | |
| parent | 82441a3e01247070d3bf1b88c44e4a29aad6af9c (diff) | |
Set ADDE/ADDC/SUBE/SUBC to expand by default
Summary:
They've been deprecated in favor of UADDO/ADDCARRY or USUBO/SUBCARRY for a while.
Target that uses these opcodes are changed in order to ensure their behavior doesn't change.
Reviewers: efriedma, craig.topper, dblaikie, bkramer
Subscribers: jholewinski, arsenm, jyknight, sdardis, nemanjai, nhaehnle, kbarton, fedor.sergeev, asb, rbar, johnrusso, simoncook, jordy.potman.lists, apazos, sabuasal, niosHD, jrtc27, zzheng, edward-jones, mgrang, atanasyan, llvm-commits
Differential Revision: https://reviews.llvm.org/D47422
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@333748 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'docs/ReleaseNotes.rst')
| -rw-r--r-- | docs/ReleaseNotes.rst | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/docs/ReleaseNotes.rst b/docs/ReleaseNotes.rst index 2fb71e40c3a..3341d4ba3fe 100644 --- a/docs/ReleaseNotes.rst +++ b/docs/ReleaseNotes.rst @@ -156,6 +156,12 @@ Changes to the C API interface was made a deprecated no-op in LLVM 5. Use ``LLVMAddSLPVectorizePass`` instead to get the supported SLP vectorizer. +Changes to the DAG infrastructure +--------------------------------- +* ADDC/ADDE/SUBC/SUBE are now deprecated and will default to expand. Backends + that wish to continue to use these opcodes should explicitely request so + using ``setOperationAction`` in their ``TargetLowering``. New backends + should use UADDO/ADDCARRY/USUBO/SUBCARRY instead of the deprecated opcodes. External Open Source Projects Using LLVM 7 ========================================== |