[PATCH] D28746: Mention ThinLTO with PGO in ReleaseNotes 4.0

Piotr Padlewski via Phabricator via cfe-commits cfe-commits at lists.llvm.org
Sun Jan 15 14:22:28 PST 2017

Prazek updated this revision to Diff 84504.
Prazek marked an inline comment as done.
Prazek added a comment.




Index: docs/ReleaseNotes.rst
--- docs/ReleaseNotes.rst
+++ docs/ReleaseNotes.rst
@@ -63,9 +63,16 @@
            indirect(a, n);
 -  ...
+Improvements to ThinLTO (-flto=thin)
+- Integration with profile data (PGO). When available, profile data enables
+  more accurate function importing decisions, as well as cross-module indirect
+  call promotion.
+- Significant build-time and binary-size improvements when compiling with debug
+  info (-g).
 Improvements to Clang's diagnostics

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