S390: [turbofan] Prevent storing signalling NaNs into holey double arrays.

src/compiler/s390/instruction-codes-s390.h

 // Copyright 2015 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_S390_INSTRUCTION_CODES_S390_H_
 #define V8_COMPILER_S390_INSTRUCTION_CODES_S390_H_
 
 namespace v8 {
 namespace internal {
 namespace compiler {
@@ skipping 89 matching lines @@
   V(S390_Uint64ToDouble)           \
   V(S390_Int32ToFloat32)           \
   V(S390_Int32ToDouble)            \
   V(S390_Uint32ToFloat32)          \
   V(S390_Uint32ToDouble)           \
   V(S390_Float32ToInt64)           \
   V(S390_Float32ToUint64)          \
   V(S390_Float32ToInt32)           \
   V(S390_Float32ToUint32)          \
   V(S390_Float32ToDouble)          \
+  V(S390_Float64SilenceNaN)        \
   V(S390_DoubleToInt32)            \
   V(S390_DoubleToUint32)           \
   V(S390_DoubleToInt64)            \
   V(S390_DoubleToUint64)           \
   V(S390_DoubleToFloat32)          \
   V(S390_DoubleExtractLowWord32)   \
   V(S390_DoubleExtractHighWord32)  \
   V(S390_DoubleInsertLowWord32)    \
   V(S390_DoubleInsertHighWord32)   \
   V(S390_DoubleConstruct)          \
@@ skipping 32 matching lines @@
 // MRR = [register + register]
 #define TARGET_ADDRESSING_MODE_LIST(V) \
   V(MRI) /* [%r0 + K] */               \
   V(MRR) /* [%r0 + %r1] */
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_S390_INSTRUCTION_CODES_S390_H_