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 1ab2b709f58cfbb78b3555b5fa04e4fa45812de4..75a6fd1ca1085b6b33091892c0d9b2a911b26f35 100644 (file)
--- a/docs/ReleaseNotes.html
+++ b/docs/ReleaseNotes.html
@@ -499,13 +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