X87: [turbofan] Prevent storing signalling NaNs into holey double arrays.

src/compiler/x87/instruction-codes-x87.h

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_COMPILER_X87_INSTRUCTION_CODES_X87_H_
 #define V8_COMPILER_X87_INSTRUCTION_CODES_X87_H_
 
 #include "src/compiler/instruction.h"
 #include "src/compiler/instruction-codes.h"
 namespace v8 {
@@ skipping 62 matching lines @@
   V(X87Float32ToUint32)            \
   V(X87Float64ToFloat32)           \
   V(X87Float64ToUint32)            \
   V(X87Float64ExtractHighWord32)   \
   V(X87Float64ExtractLowWord32)    \
   V(X87Float64InsertHighWord32)    \
   V(X87Float64InsertLowWord32)     \
   V(X87Float64Sqrt)                \
   V(X87Float64Round)               \
   V(X87Float64Cmp)                 \
+  V(X87Float64SilenceNaN)          \
   V(X87Movsxbl)                    \
   V(X87Movzxbl)                    \
   V(X87Movb)                       \
   V(X87Movsxwl)                    \
   V(X87Movzxwl)                    \
   V(X87Movw)                       \
   V(X87Movl)                       \
   V(X87Movss)                      \
   V(X87Movsd)                      \
   V(X87Lea)                        \
@@ skipping 39 matching lines @@
   V(M2I)  /* [      %r2*2 + K] */      \
   V(M4I)  /* [      %r2*4 + K] */      \
   V(M8I)  /* [      %r2*8 + K] */      \
   V(MI)   /* [              K] */
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_X87_INSTRUCTION_CODES_X87_H_