A64: Synchronize with r19001.

src/x64/lithium-x64.cc

Index: src/x64/lithium-x64.cc
diff --git a/src/x64/lithium-x64.cc b/src/x64/lithium-x64.cc
index 5c3fd709800fbfdab1eb25c18ee8a54f6a3d56c5..3c9eb2d796fa1a74ba133f7b577fe5744fa4988a 100644
--- a/src/x64/lithium-x64.cc
+++ b/src/x64/lithium-x64.cc
@@ -1185,9 +1185,7 @@ LInstruction* LChunkBuilder::DoCallFunction(HCallFunction* instr) {
   LOperand* context = UseFixed(instr->context(), rsi);
   LOperand* function = UseFixed(instr->function(), rdi);
   LCallFunction* call = new(zone()) LCallFunction(context, function);
-  LInstruction* result = DefineFixed(call, rax);
-  if (instr->IsTailCall()) return result;
-  return MarkAsCall(result, instr);
+  return MarkAsCall(DefineFixed(call, rax), instr);
 }
 
 
@@ -1606,19 +1604,6 @@ LInstruction* LChunkBuilder::DoMapEnumLength(HMapEnumLength* instr) {
 }
 
 
-LInstruction* LChunkBuilder::DoElementsKind(HElementsKind* instr) {
-  LOperand* object = UseRegisterAtStart(instr->value());
-  return DefineAsRegister(new(zone()) LElementsKind(object));
-}
-
-
-LInstruction* LChunkBuilder::DoValueOf(HValueOf* instr) {
-  LOperand* object = UseRegister(instr->value());
-  LValueOf* result = new(zone()) LValueOf(object);
-  return DefineSameAsFirst(result);
-}
-
-
 LInstruction* LChunkBuilder::DoDateField(HDateField* instr) {
   LOperand* object = UseFixed(instr->value(), rax);
   LDateField* result = new(zone()) LDateField(object, instr->index());
@@ -1672,13 +1657,6 @@ LInstruction* LChunkBuilder::DoAbnormalExit(HAbnormalExit* instr) {
 }
 
 
-LInstruction* LChunkBuilder::DoThrow(HThrow* instr) {
-  LOperand* context = UseFixed(instr->context(), rsi);
-  LOperand* value = UseFixed(instr->value(), rax);
-  return MarkAsCall(new(zone()) LThrow(context, value), instr);
-}
-
-
 LInstruction* LChunkBuilder::DoUseConst(HUseConst* instr) {
   return NULL;
 }