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

src/compiler/arm64/code-generator-arm64.cc

Index: src/compiler/arm64/code-generator-arm64.cc
diff --git a/src/compiler/arm64/code-generator-arm64.cc b/src/compiler/arm64/code-generator-arm64.cc
index 50c72e2eee28c2c82f842f034e53ef9a30c349fc..44eb050d78f90719001061b39fa180585bad0f4e 100644
--- a/src/compiler/arm64/code-generator-arm64.cc
+++ b/src/compiler/arm64/code-generator-arm64.cc
@@ -1398,6 +1398,9 @@ CodeGenerator::CodeGenResult CodeGenerator::AssembleArchInstruction(
     case kArm64Float64MoveU64:
       __ Fmov(i.OutputFloat64Register(), i.InputRegister(0));
       break;
+    case kArm64Float64SilenceNaN:
+      __ CanonicalizeNaN(i.OutputDoubleRegister(), i.InputDoubleRegister(0));
+      break;
     case kArm64U64MoveFloat64:
       __ Fmov(i.OutputRegister(), i.InputDoubleRegister(0));
       break;