[Release Notes] Add release note for "-fmerge-all-constants"
authorManoj Gupta <manojgupta@google.com>
Fri, 6 Apr 2018 21:11:09 +0000 (21:11 +0000)
committerManoj Gupta <manojgupta@google.com>
Fri, 6 Apr 2018 21:11:09 +0000 (21:11 +0000)
commit431d8c39ba741e01a44a10099324995310af5969
treed78897ba480494c9b909578f9a1ad5c821c1863d
parenta28e598ebb60b672712da7a8c3b0a4612f8e9e2d
[Release Notes] Add release note for "-fmerge-all-constants"

Summary:
Add note that "-fmerge-all-constants" is not applied as default
anymore.

Reviewers: rjmccall, rsmith, chandlerc

Subscribers: llvm-commits, thakis

Differential Revision: https://reviews.llvm.org/D45388

llvm-svn: 329457
llvm/docs/ReleaseNotes.rst