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 e903080977ee29569a5d81050829eaeb187b98f6..75a6fd1ca1085b6b33091892c0d9b2a911b26f35 100644 (file)
--- a/docs/ReleaseNotes.html
+++ b/docs/ReleaseNotes.html
@@ -449,6 +449,8 @@ Release Notes</a>.</h1>
    expose new optimization opportunities:</p>
 
 <ul>
+  <li>Thread local variables may have a specified TLS model. See the
+  <a href="LangRef.html#globalvars">Language Reference Manual</a>.</li>
   <li>...</li>
 </ul>
 
@@ -497,13 +499,12 @@ Release Notes</a>.</h1>
 
 <div>
 
-<p>We have changed the way that the Type Legalizer legalizes vectors. The type
-   legalizer now attempts to promote integer elements.  This enabled the
-   implementation of vector-select.  Additionally, we see a performance boost on
-   workloads which use vectors of chars and shorts, since they are now promoted
-   to 32-bit types, which are better supported by the SIMD instruction set.
-   Floating point types are still widened as before.</p>
-
+<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