A64: Synchronize with r17635.

src/arm/lithium-arm.h

Index: src/arm/lithium-arm.h
diff --git a/src/arm/lithium-arm.h b/src/arm/lithium-arm.h
index 3827ab3299a429cbce41e634802ebf873543be73..559f26e5da886f9e2c61bdff1a2ffc515431d453 100644
--- a/src/arm/lithium-arm.h
+++ b/src/arm/lithium-arm.h
@@ -91,6 +91,7 @@ class LCodeGen;
   V(DoubleToI)                                  \
   V(DoubleToSmi)                                \
   V(Drop)                                       \
+  V(Dummy)                                      \
   V(DummyUse)                                   \
   V(ElementsKind)                               \
   V(ForInCacheArray)                            \
@@ -156,6 +157,7 @@ class LCodeGen;
   V(Random)                                     \
   V(RegExpLiteral)                              \
   V(Return)                                     \
+  V(SeqStringGetChar)                           \
   V(SeqStringSetChar)                           \
   V(ShiftI)                                     \
   V(SmiTag)                                     \
@@ -423,6 +425,13 @@ class LLazyBailout V8_FINAL : public LTemplateInstruction<0, 0, 0> {
 };
 
 
+class LDummy V8_FINAL : public LTemplateInstruction<1, 0, 0> {
+ public:
+  explicit LDummy() { }
+  DECLARE_CONCRETE_INSTRUCTION(Dummy, "dummy")
+};
+
+
 class LDummyUse V8_FINAL : public LTemplateInstruction<1, 1, 0> {
  public:
   explicit LDummyUse(LOperand* value) {
@@ -1360,6 +1369,21 @@ class LDateField V8_FINAL : public LTemplateInstruction<1, 1, 1> {
 };
 
 
+class LSeqStringGetChar V8_FINAL : public LTemplateInstruction<1, 2, 0> {
+ public:
+  LSeqStringGetChar(LOperand* string, LOperand* index) {
+    inputs_[0] = string;
+    inputs_[1] = index;
+  }
+
+  LOperand* string() const { return inputs_[0]; }
+  LOperand* index() const { return inputs_[1]; }
+
+  DECLARE_CONCRETE_INSTRUCTION(SeqStringGetChar, "seq-string-get-char")
+  DECLARE_HYDROGEN_ACCESSOR(SeqStringGetChar)
+};
+
+
 class LSeqStringSetChar V8_FINAL : public LTemplateInstruction<1, 3, 0> {
  public:
   LSeqStringSetChar(LOperand* string,