Merge V8 5.3.332.45.  DO NOT MERGE

Test: Manual

FPIIM-449

Change-Id: Id3254828b068abdea3cb10442e0172a8c9a98e03
(cherry picked from commit 13e2dadd00298019ed862f2b2fc5068bba730bcf)
diff --git a/src/compiler/x64/instruction-codes-x64.h b/src/compiler/x64/instruction-codes-x64.h
index 638e77b..29acee3 100644
--- a/src/compiler/x64/instruction-codes-x64.h
+++ b/src/compiler/x64/instruction-codes-x64.h
@@ -102,6 +102,7 @@
   V(SSEFloat64InsertLowWord32)     \
   V(SSEFloat64InsertHighWord32)    \
   V(SSEFloat64LoadLowWord32)       \
+  V(SSEFloat64SilenceNaN)          \
   V(AVXFloat32Cmp)                 \
   V(AVXFloat32Add)                 \
   V(AVXFloat32Sub)                 \