Patch for HowToBuildOnARM documentation from Wei-Ren Chen.

[oota-llvm.git] / docs / ReleaseNotes.html

diff --git a/docs/ReleaseNotes.html b/docs/ReleaseNotes.html
index e31bad7747560b8b6a59c39789279f80abac3570..75a6fd1ca1085b6b33091892c0d9b2a911b26f35 100644 (file)
--- a/docs/ReleaseNotes.html
+++ b/docs/ReleaseNotes.html
@@ -499,6 +499,13 @@ Release Notes</a>.</h1>
 
 <div>
 
+<p>Stack Coloring - We have implemented a new optimization pass
+  to merge stack objects which are used in disjoin areas of the code.
+  This optimization reduces the required stack space significantly, in cases
+  where it is clear to the optimizer that the stack slot is not shared.
+  We use the lifetime markers to tell the codegen that a certain alloca
+  is used within a region.</p>
+
 <p>We have put a significant amount of work into the code generator
    infrastructure, which allows us to implement more aggressive algorithms and
    make it run faster:</p>