add color

Change-Id: Ie85ed7a807603ba627cb7f17de5a423ca9678251
Reviewed-on: https://skia-review.googlesource.com/18594
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Mike Klein <mtklein@chromium.org>

src/jumper/SkJumper_stages.cpp

diff --git a/src/jumper/SkJumper_stages.cpp b/src/jumper/SkJumper_stages.cpp
index 4953d96..42f4b93 100644
--- a/src/jumper/SkJumper_stages.cpp
+++ b/src/jumper/SkJumper_stages.cpp
@@ -48,6 +48,7 @@
 
 #if defined(JUMPER) && defined(__AVX__)
     // We really want to make sure all paths go through this function's (implicit) vzeroupper.
+    // If they don't, we'll experience severe slowdowns when we first use SSE instructions again.
     __attribute__((disable_tail_calls))
 #endif
 MAYBE_MSABI