[llvm-branch-commits] [llvm-branch] r279128 - ReleaseNotes: reduced jump table density

Hans Wennborg via llvm-branch-commits llvm-branch-commits at lists.llvm.org
Thu Aug 18 13:07:07 PDT 2016

Author: hans
Date: Thu Aug 18 15:07:07 2016
New Revision: 279128

URL: http://llvm.org/viewvc/llvm-project?rev=279128&view=rev
ReleaseNotes: reduced jump table density


Modified: llvm/branches/release_39/docs/ReleaseNotes.rst
URL: http://llvm.org/viewvc/llvm-project/llvm/branches/release_39/docs/ReleaseNotes.rst?rev=279128&r1=279127&r2=279128&view=diff
--- llvm/branches/release_39/docs/ReleaseNotes.rst (original)
+++ llvm/branches/release_39/docs/ReleaseNotes.rst Thu Aug 18 15:07:07 2016
@@ -79,6 +79,10 @@ Non-comprehensive list of changes in thi
   faster than MemDep. Currently, GVNHoist (which is off by default) makes use of
+* The minimum density for lowering switches with jump tables has been reduced
+  from 40% to 10% for functions which are not marked ``optsize`` (that is,
+  compiled with ``-Os``).
 .. NOTE
    For small 1-3 sentence descriptions, just add an entry at the end of
    this list. If your description won't fit comfortably in one bullet

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