[runtime] Use DCHECK_EQ instead of DCHECK for number of args.

src/runtime/runtime-atomics.cc

 // 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.
 
 #include "src/runtime/runtime-utils.h"
 
 #include "src/arguments.h"
 #include "src/base/macros.h"
 #include "src/base/platform/mutex.h"
 #include "src/conversions-inl.h"
@@ skipping 331 matching lines @@
 
 RUNTIME_FUNCTION(Runtime_ThrowInvalidAtomicAccessIndexError) {
   HandleScope scope(isolate);
   DCHECK_EQ(0, args.length());
   THROW_NEW_ERROR_RETURN_FAILURE(
       isolate, NewRangeError(MessageTemplate::kInvalidAtomicAccessIndex));
 }
 
 RUNTIME_FUNCTION(Runtime_AtomicsCompareExchange) {
   HandleScope scope(isolate);
-  DCHECK(args.length() == 4);
+  DCHECK_EQ(4, args.length());
   CONVERT_ARG_HANDLE_CHECKED(JSTypedArray, sta, 0);
   CONVERT_SIZE_ARG_CHECKED(index, 1);
   CONVERT_NUMBER_ARG_HANDLE_CHECKED(oldobj, 2);
   CONVERT_NUMBER_ARG_HANDLE_CHECKED(newobj, 3);
   CHECK(sta->GetBuffer()->is_shared());
   CHECK_LT(index, NumberToSize(sta->length()));
 
   uint8_t* source = static_cast<uint8_t*>(sta->GetBuffer()->backing_store()) +
                     NumberToSize(sta->byte_offset());
 
@@ skipping 13 matching lines @@
       break;
   }
 
   UNREACHABLE();
   return isolate->heap()->undefined_value();
 }
 
 
 RUNTIME_FUNCTION(Runtime_AtomicsAdd) {
   HandleScope scope(isolate);
-  DCHECK(args.length() == 3);
+  DCHECK_EQ(3, args.length());
   CONVERT_ARG_HANDLE_CHECKED(JSTypedArray, sta, 0);
   CONVERT_SIZE_ARG_CHECKED(index, 1);
   CONVERT_NUMBER_ARG_HANDLE_CHECKED(value, 2);
   CHECK(sta->GetBuffer()->is_shared());
   CHECK_LT(index, NumberToSize(sta->length()));
 
   uint8_t* source = static_cast<uint8_t*>(sta->GetBuffer()->backing_store()) +
                     NumberToSize(sta->byte_offset());
 
   switch (sta->type()) {
@@ skipping 11 matching lines @@
       break;
   }
 
   UNREACHABLE();
   return isolate->heap()->undefined_value();
 }
 
 
 RUNTIME_FUNCTION(Runtime_AtomicsSub) {
   HandleScope scope(isolate);
-  DCHECK(args.length() == 3);
+  DCHECK_EQ(3, args.length());
   CONVERT_ARG_HANDLE_CHECKED(JSTypedArray, sta, 0);
   CONVERT_SIZE_ARG_CHECKED(index, 1);
   CONVERT_NUMBER_ARG_HANDLE_CHECKED(value, 2);
   CHECK(sta->GetBuffer()->is_shared());
   CHECK_LT(index, NumberToSize(sta->length()));
 
   uint8_t* source = static_cast<uint8_t*>(sta->GetBuffer()->backing_store()) +
                     NumberToSize(sta->byte_offset());
 
   switch (sta->type()) {
@@ skipping 11 matching lines @@
       break;
   }
 
   UNREACHABLE();
   return isolate->heap()->undefined_value();
 }
 
 
 RUNTIME_FUNCTION(Runtime_AtomicsAnd) {
   HandleScope scope(isolate);
-  DCHECK(args.length() == 3);
+  DCHECK_EQ(3, args.length());
   CONVERT_ARG_HANDLE_CHECKED(JSTypedArray, sta, 0);
   CONVERT_SIZE_ARG_CHECKED(index, 1);
   CONVERT_NUMBER_ARG_HANDLE_CHECKED(value, 2);
   CHECK(sta->GetBuffer()->is_shared());
   CHECK_LT(index, NumberToSize(sta->length()));
 
   uint8_t* source = static_cast<uint8_t*>(sta->GetBuffer()->backing_store()) +
                     NumberToSize(sta->byte_offset());
 
   switch (sta->type()) {
@@ skipping 11 matching lines @@
       break;
   }
 
   UNREACHABLE();
   return isolate->heap()->undefined_value();
 }
 
 
 RUNTIME_FUNCTION(Runtime_AtomicsOr) {
   HandleScope scope(isolate);
-  DCHECK(args.length() == 3);
+  DCHECK_EQ(3, args.length());
   CONVERT_ARG_HANDLE_CHECKED(JSTypedArray, sta, 0);
   CONVERT_SIZE_ARG_CHECKED(index, 1);
   CONVERT_NUMBER_ARG_HANDLE_CHECKED(value, 2);
   CHECK(sta->GetBuffer()->is_shared());
   CHECK_LT(index, NumberToSize(sta->length()));
 
   uint8_t* source = static_cast<uint8_t*>(sta->GetBuffer()->backing_store()) +
                     NumberToSize(sta->byte_offset());
 
   switch (sta->type()) {
@@ skipping 11 matching lines @@
       break;
   }
 
   UNREACHABLE();
   return isolate->heap()->undefined_value();
 }
 
 
 RUNTIME_FUNCTION(Runtime_AtomicsXor) {
   HandleScope scope(isolate);
-  DCHECK(args.length() == 3);
+  DCHECK_EQ(3, args.length());
   CONVERT_ARG_HANDLE_CHECKED(JSTypedArray, sta, 0);
   CONVERT_SIZE_ARG_CHECKED(index, 1);
   CONVERT_NUMBER_ARG_HANDLE_CHECKED(value, 2);
   CHECK(sta->GetBuffer()->is_shared());
   CHECK_LT(index, NumberToSize(sta->length()));
 
   uint8_t* source = static_cast<uint8_t*>(sta->GetBuffer()->backing_store()) +
                     NumberToSize(sta->byte_offset());
 
   switch (sta->type()) {
@@ skipping 11 matching lines @@
       break;
   }
 
   UNREACHABLE();
   return isolate->heap()->undefined_value();
 }
 
 
 RUNTIME_FUNCTION(Runtime_AtomicsExchange) {
   HandleScope scope(isolate);
-  DCHECK(args.length() == 3);
+  DCHECK_EQ(3, args.length());
   CONVERT_ARG_HANDLE_CHECKED(JSTypedArray, sta, 0);
   CONVERT_SIZE_ARG_CHECKED(index, 1);
   CONVERT_NUMBER_ARG_HANDLE_CHECKED(value, 2);
   CHECK(sta->GetBuffer()->is_shared());
   CHECK_LT(index, NumberToSize(sta->length()));
 
   uint8_t* source = static_cast<uint8_t*>(sta->GetBuffer()->backing_store()) +
                     NumberToSize(sta->byte_offset());
 
   switch (sta->type()) {
@@ skipping 11 matching lines @@
       break;
   }
 
   UNREACHABLE();
   return isolate->heap()->undefined_value();
 }
 
 
 RUNTIME_FUNCTION(Runtime_AtomicsIsLockFree) {
   HandleScope scope(isolate);
-  DCHECK(args.length() == 1);
+  DCHECK_EQ(1, args.length());
   CONVERT_NUMBER_ARG_HANDLE_CHECKED(size, 0);
   uint32_t usize = NumberToUint32(*size);
   return isolate->heap()->ToBoolean(AtomicIsLockFree(usize));
 }
 }  // namespace internal
 }  // namespace v8