Resolve performance

7 years ago · 68760439e7
parent bb7ff0df00
commit 68760439e7
4 changed files with 437 additions and 994 deletions
--- a/src/core/lib/transport/static_metadata.c
+++ b/src/core/lib/transport/static_metadata.c
--- a/src/core/lib/transport/static_metadata.h
+++ b/src/core/lib/transport/static_metadata.h
@ -1,12 +1,12 @@
 /*
 * Copyright 2015 gRPC authors.
- *
+ * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
- *
+ * 
 *     http://www.apache.org/licenses/LICENSE-2.0
- *
+ * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
@ -16,10 +16,10 @@

 /*
 * WARNING: Auto-generated code.
- *
+ * 
 * To make changes to this file, change
 * tools/codegen/core/gen_static_metadata.py, and then re-run it.
- *
+ * 
 * See metadata.h for an explanation of the interface here, and metadata.c for
 * an explanation of what's going on.
 */
@ -68,8 +68,7 @@ extern const grpc_slice grpc_static_slice_table[GRPC_STATIC_MDSTR_COUNT];
 /* "grpc-internal-encoding-request" */
 #define GRPC_MDSTR_GRPC_INTERNAL_ENCODING_REQUEST (grpc_static_slice_table[17])
 /* "grpc-internal-stream-encoding-request" */
-#define GRPC_MDSTR_GRPC_INTERNAL_STREAM_ENCODING_REQUEST \
-  (grpc_static_slice_table[18])
+#define GRPC_MDSTR_GRPC_INTERNAL_STREAM_ENCODING_REQUEST (grpc_static_slice_table[18])
 /* "user-agent" */
 #define GRPC_MDSTR_USER_AGENT (grpc_static_slice_table[19])
 /* "host" */
@ -85,14 +84,11 @@ extern const grpc_slice grpc_static_slice_table[GRPC_STATIC_MDSTR_COUNT];
 /* "grpc.timeout" */
 #define GRPC_MDSTR_GRPC_DOT_TIMEOUT (grpc_static_slice_table[25])
 /* "grpc.max_request_message_bytes" */
-#define GRPC_MDSTR_GRPC_DOT_MAX_REQUEST_MESSAGE_BYTES \
-  (grpc_static_slice_table[26])
+#define GRPC_MDSTR_GRPC_DOT_MAX_REQUEST_MESSAGE_BYTES (grpc_static_slice_table[26])
 /* "grpc.max_response_message_bytes" */
-#define GRPC_MDSTR_GRPC_DOT_MAX_RESPONSE_MESSAGE_BYTES \
-  (grpc_static_slice_table[27])
+#define GRPC_MDSTR_GRPC_DOT_MAX_RESPONSE_MESSAGE_BYTES (grpc_static_slice_table[27])
 /* "/grpc.lb.v1.LoadBalancer/BalanceLoad" */
-#define GRPC_MDSTR_SLASH_GRPC_DOT_LB_DOT_V1_DOT_LOADBALANCER_SLASH_BALANCELOAD \
-  (grpc_static_slice_table[28])
+#define GRPC_MDSTR_SLASH_GRPC_DOT_LB_DOT_V1_DOT_LOADBALANCER_SLASH_BALANCELOAD (grpc_static_slice_table[28])
 /* "0" */
 #define GRPC_MDSTR_0 (grpc_static_slice_table[29])
 /* "1" */
@ -234,277 +230,191 @@ extern const grpc_slice grpc_static_slice_table[GRPC_STATIC_MDSTR_COUNT];
 /* "deflate,gzip" */
 #define GRPC_MDSTR_DEFLATE_COMMA_GZIP (grpc_static_slice_table[98])
 /* "identity,deflate,gzip" */
-#define GRPC_MDSTR_IDENTITY_COMMA_DEFLATE_COMMA_GZIP \
-  (grpc_static_slice_table[99])
+#define GRPC_MDSTR_IDENTITY_COMMA_DEFLATE_COMMA_GZIP (grpc_static_slice_table[99])

 extern const grpc_slice_refcount_vtable grpc_static_metadata_vtable;
-extern grpc_slice_refcount
-    grpc_static_metadata_refcounts[GRPC_STATIC_MDSTR_COUNT];
+extern grpc_slice_refcount grpc_static_metadata_refcounts[GRPC_STATIC_MDSTR_COUNT];
 #define GRPC_IS_STATIC_METADATA_STRING(slice) \
-  ((slice).refcount != NULL &&                \
-   (slice).refcount->vtable == &grpc_static_metadata_vtable)
+  ((slice).refcount != NULL && (slice).refcount->vtable == &grpc_static_metadata_vtable)

 #define GRPC_STATIC_METADATA_INDEX(static_slice) \
  ((int)((static_slice).refcount - grpc_static_metadata_refcounts))

-#define GRPC_STATIC_MDELEM_COUNT 85
+#define GRPC_STATIC_MDELEM_COUNT 86
 extern grpc_mdelem_data grpc_static_mdelem_table[GRPC_STATIC_MDELEM_COUNT];
 extern uintptr_t grpc_static_mdelem_user_data[GRPC_STATIC_MDELEM_COUNT];
 /* "grpc-status": "0" */
-#define GRPC_MDELEM_GRPC_STATUS_0 \
-  (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[0], GRPC_MDELEM_STORAGE_STATIC))
+#define GRPC_MDELEM_GRPC_STATUS_0 (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[0], GRPC_MDELEM_STORAGE_STATIC))
 /* "grpc-status": "1" */
-#define GRPC_MDELEM_GRPC_STATUS_1 \
-  (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[1], GRPC_MDELEM_STORAGE_STATIC))
+#define GRPC_MDELEM_GRPC_STATUS_1 (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[1], GRPC_MDELEM_STORAGE_STATIC))
 /* "grpc-status": "2" */
-#define GRPC_MDELEM_GRPC_STATUS_2 \
-  (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[2], GRPC_MDELEM_STORAGE_STATIC))
+#define GRPC_MDELEM_GRPC_STATUS_2 (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[2], GRPC_MDELEM_STORAGE_STATIC))
 /* "grpc-encoding": "identity" */
-#define GRPC_MDELEM_GRPC_ENCODING_IDENTITY \
-  (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[3], GRPC_MDELEM_STORAGE_STATIC))
+#define GRPC_MDELEM_GRPC_ENCODING_IDENTITY (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[3], GRPC_MDELEM_STORAGE_STATIC))
 /* "grpc-encoding": "gzip" */
-#define GRPC_MDELEM_GRPC_ENCODING_GZIP \
-  (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[4], GRPC_MDELEM_STORAGE_STATIC))
+#define GRPC_MDELEM_GRPC_ENCODING_GZIP (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[4], GRPC_MDELEM_STORAGE_STATIC))
 /* "grpc-encoding": "deflate" */
-#define GRPC_MDELEM_GRPC_ENCODING_DEFLATE \
-  (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[5], GRPC_MDELEM_STORAGE_STATIC))
+#define GRPC_MDELEM_GRPC_ENCODING_DEFLATE (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[5], GRPC_MDELEM_STORAGE_STATIC))
 /* "te": "trailers" */
-#define GRPC_MDELEM_TE_TRAILERS \
-  (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[6], GRPC_MDELEM_STORAGE_STATIC))
+#define GRPC_MDELEM_TE_TRAILERS (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[6], GRPC_MDELEM_STORAGE_STATIC))
 /* "content-type": "application/grpc" */
-#define GRPC_MDELEM_CONTENT_TYPE_APPLICATION_SLASH_GRPC \
-  (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[7], GRPC_MDELEM_STORAGE_STATIC))
+#define GRPC_MDELEM_CONTENT_TYPE_APPLICATION_SLASH_GRPC (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[7], GRPC_MDELEM_STORAGE_STATIC))
 /* ":method": "POST" */
-#define GRPC_MDELEM_METHOD_POST \
-  (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[8], GRPC_MDELEM_STORAGE_STATIC))
+#define GRPC_MDELEM_METHOD_POST (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[8], GRPC_MDELEM_STORAGE_STATIC))
 /* ":status": "200" */
-#define GRPC_MDELEM_STATUS_200 \
-  (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[9], GRPC_MDELEM_STORAGE_STATIC))
+#define GRPC_MDELEM_STATUS_200 (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[9], GRPC_MDELEM_STORAGE_STATIC))
 /* ":status": "404" */
-#define GRPC_MDELEM_STATUS_404 \
-  (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[10], GRPC_MDELEM_STORAGE_STATIC))
+#define GRPC_MDELEM_STATUS_404 (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[10], GRPC_MDELEM_STORAGE_STATIC))
 /* ":scheme": "http" */
-#define GRPC_MDELEM_SCHEME_HTTP \
-  (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[11], GRPC_MDELEM_STORAGE_STATIC))
+#define GRPC_MDELEM_SCHEME_HTTP (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[11], GRPC_MDELEM_STORAGE_STATIC))
 /* ":scheme": "https" */
-#define GRPC_MDELEM_SCHEME_HTTPS \
-  (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[12], GRPC_MDELEM_STORAGE_STATIC))
+#define GRPC_MDELEM_SCHEME_HTTPS (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[12], GRPC_MDELEM_STORAGE_STATIC))
 /* ":scheme": "grpc" */
-#define GRPC_MDELEM_SCHEME_GRPC \
-  (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[13], GRPC_MDELEM_STORAGE_STATIC))
+#define GRPC_MDELEM_SCHEME_GRPC (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[13], GRPC_MDELEM_STORAGE_STATIC))
 /* ":authority": "" */
-#define GRPC_MDELEM_AUTHORITY_EMPTY \
-  (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[14], GRPC_MDELEM_STORAGE_STATIC))
+#define GRPC_MDELEM_AUTHORITY_EMPTY (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[14], GRPC_MDELEM_STORAGE_STATIC))
 /* ":method": "GET" */
-#define GRPC_MDELEM_METHOD_GET \
-  (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[15], GRPC_MDELEM_STORAGE_STATIC))
+#define GRPC_MDELEM_METHOD_GET (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[15], GRPC_MDELEM_STORAGE_STATIC))
 /* ":method": "PUT" */
-#define GRPC_MDELEM_METHOD_PUT \
-  (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[16], GRPC_MDELEM_STORAGE_STATIC))
+#define GRPC_MDELEM_METHOD_PUT (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[16], GRPC_MDELEM_STORAGE_STATIC))
 /* ":path": "/" */
-#define GRPC_MDELEM_PATH_SLASH \
-  (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[17], GRPC_MDELEM_STORAGE_STATIC))
+#define GRPC_MDELEM_PATH_SLASH (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[17], GRPC_MDELEM_STORAGE_STATIC))
 /* ":path": "/index.html" */
-#define GRPC_MDELEM_PATH_SLASH_INDEX_DOT_HTML \
-  (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[18], GRPC_MDELEM_STORAGE_STATIC))
+#define GRPC_MDELEM_PATH_SLASH_INDEX_DOT_HTML (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[18], GRPC_MDELEM_STORAGE_STATIC))
 /* ":status": "204" */
-#define GRPC_MDELEM_STATUS_204 \
-  (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[19], GRPC_MDELEM_STORAGE_STATIC))
+#define GRPC_MDELEM_STATUS_204 (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[19], GRPC_MDELEM_STORAGE_STATIC))
 /* ":status": "206" */
-#define GRPC_MDELEM_STATUS_206 \
-  (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[20], GRPC_MDELEM_STORAGE_STATIC))
+#define GRPC_MDELEM_STATUS_206 (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[20], GRPC_MDELEM_STORAGE_STATIC))
 /* ":status": "304" */
-#define GRPC_MDELEM_STATUS_304 \
-  (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[21], GRPC_MDELEM_STORAGE_STATIC))
+#define GRPC_MDELEM_STATUS_304 (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[21], GRPC_MDELEM_STORAGE_STATIC))
 /* ":status": "400" */
-#define GRPC_MDELEM_STATUS_400 \
-  (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[22], GRPC_MDELEM_STORAGE_STATIC))
+#define GRPC_MDELEM_STATUS_400 (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[22], GRPC_MDELEM_STORAGE_STATIC))
 /* ":status": "500" */
-#define GRPC_MDELEM_STATUS_500 \
-  (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[23], GRPC_MDELEM_STORAGE_STATIC))
+#define GRPC_MDELEM_STATUS_500 (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[23], GRPC_MDELEM_STORAGE_STATIC))
 /* "accept-charset": "" */
-#define GRPC_MDELEM_ACCEPT_CHARSET_EMPTY \
-  (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[24], GRPC_MDELEM_STORAGE_STATIC))
+#define GRPC_MDELEM_ACCEPT_CHARSET_EMPTY (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[24], GRPC_MDELEM_STORAGE_STATIC))
 /* "accept-encoding": "" */
-#define GRPC_MDELEM_ACCEPT_ENCODING_EMPTY \
-  (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[25], GRPC_MDELEM_STORAGE_STATIC))
+#define GRPC_MDELEM_ACCEPT_ENCODING_EMPTY (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[25], GRPC_MDELEM_STORAGE_STATIC))
 /* "accept-encoding": "gzip, deflate" */
-#define GRPC_MDELEM_ACCEPT_ENCODING_GZIP_COMMA_DEFLATE \
-  (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[26], GRPC_MDELEM_STORAGE_STATIC))
+#define GRPC_MDELEM_ACCEPT_ENCODING_GZIP_COMMA_DEFLATE (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[26], GRPC_MDELEM_STORAGE_STATIC))
 /* "accept-language": "" */
-#define GRPC_MDELEM_ACCEPT_LANGUAGE_EMPTY \
-  (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[27], GRPC_MDELEM_STORAGE_STATIC))
+#define GRPC_MDELEM_ACCEPT_LANGUAGE_EMPTY (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[27], GRPC_MDELEM_STORAGE_STATIC))
 /* "accept-ranges": "" */
-#define GRPC_MDELEM_ACCEPT_RANGES_EMPTY \
-  (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[28], GRPC_MDELEM_STORAGE_STATIC))
+#define GRPC_MDELEM_ACCEPT_RANGES_EMPTY (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[28], GRPC_MDELEM_STORAGE_STATIC))
 /* "accept": "" */
-#define GRPC_MDELEM_ACCEPT_EMPTY \
-  (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[29], GRPC_MDELEM_STORAGE_STATIC))
+#define GRPC_MDELEM_ACCEPT_EMPTY (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[29], GRPC_MDELEM_STORAGE_STATIC))
 /* "access-control-allow-origin": "" */
-#define GRPC_MDELEM_ACCESS_CONTROL_ALLOW_ORIGIN_EMPTY \
-  (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[30], GRPC_MDELEM_STORAGE_STATIC))
+#define GRPC_MDELEM_ACCESS_CONTROL_ALLOW_ORIGIN_EMPTY (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[30], GRPC_MDELEM_STORAGE_STATIC))
 /* "age": "" */
-#define GRPC_MDELEM_AGE_EMPTY \
-  (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[31], GRPC_MDELEM_STORAGE_STATIC))
+#define GRPC_MDELEM_AGE_EMPTY (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[31], GRPC_MDELEM_STORAGE_STATIC))
 /* "allow": "" */
-#define GRPC_MDELEM_ALLOW_EMPTY \
-  (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[32], GRPC_MDELEM_STORAGE_STATIC))
+#define GRPC_MDELEM_ALLOW_EMPTY (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[32], GRPC_MDELEM_STORAGE_STATIC))
 /* "authorization": "" */
-#define GRPC_MDELEM_AUTHORIZATION_EMPTY \
-  (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[33], GRPC_MDELEM_STORAGE_STATIC))
+#define GRPC_MDELEM_AUTHORIZATION_EMPTY (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[33], GRPC_MDELEM_STORAGE_STATIC))
 /* "cache-control": "" */
-#define GRPC_MDELEM_CACHE_CONTROL_EMPTY \
-  (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[34], GRPC_MDELEM_STORAGE_STATIC))
+#define GRPC_MDELEM_CACHE_CONTROL_EMPTY (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[34], GRPC_MDELEM_STORAGE_STATIC))
 /* "content-disposition": "" */
-#define GRPC_MDELEM_CONTENT_DISPOSITION_EMPTY \
-  (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[35], GRPC_MDELEM_STORAGE_STATIC))
+#define GRPC_MDELEM_CONTENT_DISPOSITION_EMPTY (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[35], GRPC_MDELEM_STORAGE_STATIC))
 /* "content-encoding": "identity" */
-#define GRPC_MDELEM_CONTENT_ENCODING_IDENTITY \
-  (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[36], GRPC_MDELEM_STORAGE_STATIC))
+#define GRPC_MDELEM_CONTENT_ENCODING_IDENTITY (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[36], GRPC_MDELEM_STORAGE_STATIC))
 /* "content-encoding": "gzip" */
-#define GRPC_MDELEM_CONTENT_ENCODING_GZIP \
-  (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[37], GRPC_MDELEM_STORAGE_STATIC))
+#define GRPC_MDELEM_CONTENT_ENCODING_GZIP (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[37], GRPC_MDELEM_STORAGE_STATIC))
+/* "content-encoding": "" */
+#define GRPC_MDELEM_CONTENT_ENCODING_EMPTY (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[38], GRPC_MDELEM_STORAGE_STATIC))
 /* "content-language": "" */
-#define GRPC_MDELEM_CONTENT_LANGUAGE_EMPTY \
-  (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[38], GRPC_MDELEM_STORAGE_STATIC))
+#define GRPC_MDELEM_CONTENT_LANGUAGE_EMPTY (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[39], GRPC_MDELEM_STORAGE_STATIC))
 /* "content-length": "" */
-#define GRPC_MDELEM_CONTENT_LENGTH_EMPTY \
-  (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[39], GRPC_MDELEM_STORAGE_STATIC))
+#define GRPC_MDELEM_CONTENT_LENGTH_EMPTY (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[40], GRPC_MDELEM_STORAGE_STATIC))
 /* "content-location": "" */
-#define GRPC_MDELEM_CONTENT_LOCATION_EMPTY \
-  (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[40], GRPC_MDELEM_STORAGE_STATIC))
+#define GRPC_MDELEM_CONTENT_LOCATION_EMPTY (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[41], GRPC_MDELEM_STORAGE_STATIC))
 /* "content-range": "" */
-#define GRPC_MDELEM_CONTENT_RANGE_EMPTY \
-  (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[41], GRPC_MDELEM_STORAGE_STATIC))
+#define GRPC_MDELEM_CONTENT_RANGE_EMPTY (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[42], GRPC_MDELEM_STORAGE_STATIC))
 /* "content-type": "" */
-#define GRPC_MDELEM_CONTENT_TYPE_EMPTY \
-  (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[42], GRPC_MDELEM_STORAGE_STATIC))
+#define GRPC_MDELEM_CONTENT_TYPE_EMPTY (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[43], GRPC_MDELEM_STORAGE_STATIC))
 /* "cookie": "" */
-#define GRPC_MDELEM_COOKIE_EMPTY \
-  (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[43], GRPC_MDELEM_STORAGE_STATIC))
+#define GRPC_MDELEM_COOKIE_EMPTY (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[44], GRPC_MDELEM_STORAGE_STATIC))
 /* "date": "" */
-#define GRPC_MDELEM_DATE_EMPTY \
-  (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[44], GRPC_MDELEM_STORAGE_STATIC))
+#define GRPC_MDELEM_DATE_EMPTY (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[45], GRPC_MDELEM_STORAGE_STATIC))
 /* "etag": "" */
-#define GRPC_MDELEM_ETAG_EMPTY \
-  (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[45], GRPC_MDELEM_STORAGE_STATIC))
+#define GRPC_MDELEM_ETAG_EMPTY (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[46], GRPC_MDELEM_STORAGE_STATIC))
 /* "expect": "" */
-#define GRPC_MDELEM_EXPECT_EMPTY \
-  (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[46], GRPC_MDELEM_STORAGE_STATIC))
+#define GRPC_MDELEM_EXPECT_EMPTY (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[47], GRPC_MDELEM_STORAGE_STATIC))
 /* "expires": "" */
-#define GRPC_MDELEM_EXPIRES_EMPTY \
-  (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[47], GRPC_MDELEM_STORAGE_STATIC))
+#define GRPC_MDELEM_EXPIRES_EMPTY (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[48], GRPC_MDELEM_STORAGE_STATIC))
 /* "from": "" */
-#define GRPC_MDELEM_FROM_EMPTY \
-  (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[48], GRPC_MDELEM_STORAGE_STATIC))
+#define GRPC_MDELEM_FROM_EMPTY (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[49], GRPC_MDELEM_STORAGE_STATIC))
 /* "host": "" */
-#define GRPC_MDELEM_HOST_EMPTY \
-  (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[49], GRPC_MDELEM_STORAGE_STATIC))
+#define GRPC_MDELEM_HOST_EMPTY (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[50], GRPC_MDELEM_STORAGE_STATIC))
 /* "if-match": "" */
-#define GRPC_MDELEM_IF_MATCH_EMPTY \
-  (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[50], GRPC_MDELEM_STORAGE_STATIC))
+#define GRPC_MDELEM_IF_MATCH_EMPTY (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[51], GRPC_MDELEM_STORAGE_STATIC))
 /* "if-modified-since": "" */
-#define GRPC_MDELEM_IF_MODIFIED_SINCE_EMPTY \
-  (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[51], GRPC_MDELEM_STORAGE_STATIC))
+#define GRPC_MDELEM_IF_MODIFIED_SINCE_EMPTY (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[52], GRPC_MDELEM_STORAGE_STATIC))
 /* "if-none-match": "" */
-#define GRPC_MDELEM_IF_NONE_MATCH_EMPTY \
-  (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[52], GRPC_MDELEM_STORAGE_STATIC))
+#define GRPC_MDELEM_IF_NONE_MATCH_EMPTY (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[53], GRPC_MDELEM_STORAGE_STATIC))
 /* "if-range": "" */
-#define GRPC_MDELEM_IF_RANGE_EMPTY \
-  (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[53], GRPC_MDELEM_STORAGE_STATIC))
+#define GRPC_MDELEM_IF_RANGE_EMPTY (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[54], GRPC_MDELEM_STORAGE_STATIC))
 /* "if-unmodified-since": "" */
-#define GRPC_MDELEM_IF_UNMODIFIED_SINCE_EMPTY \
-  (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[54], GRPC_MDELEM_STORAGE_STATIC))
+#define GRPC_MDELEM_IF_UNMODIFIED_SINCE_EMPTY (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[55], GRPC_MDELEM_STORAGE_STATIC))
 /* "last-modified": "" */
-#define GRPC_MDELEM_LAST_MODIFIED_EMPTY \
-  (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[55], GRPC_MDELEM_STORAGE_STATIC))
+#define GRPC_MDELEM_LAST_MODIFIED_EMPTY (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[56], GRPC_MDELEM_STORAGE_STATIC))
 /* "lb-token": "" */
-#define GRPC_MDELEM_LB_TOKEN_EMPTY \
-  (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[56], GRPC_MDELEM_STORAGE_STATIC))
+#define GRPC_MDELEM_LB_TOKEN_EMPTY (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[57], GRPC_MDELEM_STORAGE_STATIC))
 /* "lb-cost-bin": "" */
-#define GRPC_MDELEM_LB_COST_BIN_EMPTY \
-  (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[57], GRPC_MDELEM_STORAGE_STATIC))
+#define GRPC_MDELEM_LB_COST_BIN_EMPTY (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[58], GRPC_MDELEM_STORAGE_STATIC))
 /* "link": "" */
-#define GRPC_MDELEM_LINK_EMPTY \
-  (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[58], GRPC_MDELEM_STORAGE_STATIC))
+#define GRPC_MDELEM_LINK_EMPTY (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[59], GRPC_MDELEM_STORAGE_STATIC))
 /* "location": "" */
-#define GRPC_MDELEM_LOCATION_EMPTY \
-  (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[59], GRPC_MDELEM_STORAGE_STATIC))
+#define GRPC_MDELEM_LOCATION_EMPTY (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[60], GRPC_MDELEM_STORAGE_STATIC))
 /* "max-forwards": "" */
-#define GRPC_MDELEM_MAX_FORWARDS_EMPTY \
-  (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[60], GRPC_MDELEM_STORAGE_STATIC))
+#define GRPC_MDELEM_MAX_FORWARDS_EMPTY (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[61], GRPC_MDELEM_STORAGE_STATIC))
 /* "proxy-authenticate": "" */
-#define GRPC_MDELEM_PROXY_AUTHENTICATE_EMPTY \
-  (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[61], GRPC_MDELEM_STORAGE_STATIC))
+#define GRPC_MDELEM_PROXY_AUTHENTICATE_EMPTY (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[62], GRPC_MDELEM_STORAGE_STATIC))
 /* "proxy-authorization": "" */
-#define GRPC_MDELEM_PROXY_AUTHORIZATION_EMPTY \
-  (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[62], GRPC_MDELEM_STORAGE_STATIC))
+#define GRPC_MDELEM_PROXY_AUTHORIZATION_EMPTY (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[63], GRPC_MDELEM_STORAGE_STATIC))
 /* "range": "" */
-#define GRPC_MDELEM_RANGE_EMPTY \
-  (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[63], GRPC_MDELEM_STORAGE_STATIC))
+#define GRPC_MDELEM_RANGE_EMPTY (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[64], GRPC_MDELEM_STORAGE_STATIC))
 /* "referer": "" */
-#define GRPC_MDELEM_REFERER_EMPTY \
-  (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[64], GRPC_MDELEM_STORAGE_STATIC))
+#define GRPC_MDELEM_REFERER_EMPTY (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[65], GRPC_MDELEM_STORAGE_STATIC))
 /* "refresh": "" */
-#define GRPC_MDELEM_REFRESH_EMPTY \
-  (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[65], GRPC_MDELEM_STORAGE_STATIC))
+#define GRPC_MDELEM_REFRESH_EMPTY (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[66], GRPC_MDELEM_STORAGE_STATIC))
 /* "retry-after": "" */
-#define GRPC_MDELEM_RETRY_AFTER_EMPTY \
-  (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[66], GRPC_MDELEM_STORAGE_STATIC))
+#define GRPC_MDELEM_RETRY_AFTER_EMPTY (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[67], GRPC_MDELEM_STORAGE_STATIC))
 /* "server": "" */
-#define GRPC_MDELEM_SERVER_EMPTY \
-  (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[67], GRPC_MDELEM_STORAGE_STATIC))
+#define GRPC_MDELEM_SERVER_EMPTY (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[68], GRPC_MDELEM_STORAGE_STATIC))
 /* "set-cookie": "" */
-#define GRPC_MDELEM_SET_COOKIE_EMPTY \
-  (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[68], GRPC_MDELEM_STORAGE_STATIC))
+#define GRPC_MDELEM_SET_COOKIE_EMPTY (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[69], GRPC_MDELEM_STORAGE_STATIC))
 /* "strict-transport-security": "" */
-#define GRPC_MDELEM_STRICT_TRANSPORT_SECURITY_EMPTY \
-  (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[69], GRPC_MDELEM_STORAGE_STATIC))
+#define GRPC_MDELEM_STRICT_TRANSPORT_SECURITY_EMPTY (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[70], GRPC_MDELEM_STORAGE_STATIC))
 /* "transfer-encoding": "" */
-#define GRPC_MDELEM_TRANSFER_ENCODING_EMPTY \
-  (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[70], GRPC_MDELEM_STORAGE_STATIC))
+#define GRPC_MDELEM_TRANSFER_ENCODING_EMPTY (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[71], GRPC_MDELEM_STORAGE_STATIC))
 /* "user-agent": "" */
-#define GRPC_MDELEM_USER_AGENT_EMPTY \
-  (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[71], GRPC_MDELEM_STORAGE_STATIC))
+#define GRPC_MDELEM_USER_AGENT_EMPTY (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[72], GRPC_MDELEM_STORAGE_STATIC))
 /* "vary": "" */
-#define GRPC_MDELEM_VARY_EMPTY \
-  (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[72], GRPC_MDELEM_STORAGE_STATIC))
+#define GRPC_MDELEM_VARY_EMPTY (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[73], GRPC_MDELEM_STORAGE_STATIC))
 /* "via": "" */
-#define GRPC_MDELEM_VIA_EMPTY \
-  (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[73], GRPC_MDELEM_STORAGE_STATIC))
+#define GRPC_MDELEM_VIA_EMPTY (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[74], GRPC_MDELEM_STORAGE_STATIC))
 /* "www-authenticate": "" */
-#define GRPC_MDELEM_WWW_AUTHENTICATE_EMPTY \
-  (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[74], GRPC_MDELEM_STORAGE_STATIC))
+#define GRPC_MDELEM_WWW_AUTHENTICATE_EMPTY (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[75], GRPC_MDELEM_STORAGE_STATIC))
 /* "grpc-accept-encoding": "identity" */
-#define GRPC_MDELEM_GRPC_ACCEPT_ENCODING_IDENTITY \
-  (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[75], GRPC_MDELEM_STORAGE_STATIC))
+#define GRPC_MDELEM_GRPC_ACCEPT_ENCODING_IDENTITY (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[76], GRPC_MDELEM_STORAGE_STATIC))
 /* "grpc-accept-encoding": "deflate" */
-#define GRPC_MDELEM_GRPC_ACCEPT_ENCODING_DEFLATE \
-  (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[76], GRPC_MDELEM_STORAGE_STATIC))
+#define GRPC_MDELEM_GRPC_ACCEPT_ENCODING_DEFLATE (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[77], GRPC_MDELEM_STORAGE_STATIC))
 /* "grpc-accept-encoding": "identity,deflate" */
-#define GRPC_MDELEM_GRPC_ACCEPT_ENCODING_IDENTITY_COMMA_DEFLATE \
-  (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[77], GRPC_MDELEM_STORAGE_STATIC))
+#define GRPC_MDELEM_GRPC_ACCEPT_ENCODING_IDENTITY_COMMA_DEFLATE (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[78], GRPC_MDELEM_STORAGE_STATIC))
 /* "grpc-accept-encoding": "gzip" */
-#define GRPC_MDELEM_GRPC_ACCEPT_ENCODING_GZIP \
-  (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[78], GRPC_MDELEM_STORAGE_STATIC))
+#define GRPC_MDELEM_GRPC_ACCEPT_ENCODING_GZIP (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[79], GRPC_MDELEM_STORAGE_STATIC))
 /* "grpc-accept-encoding": "identity,gzip" */
-#define GRPC_MDELEM_GRPC_ACCEPT_ENCODING_IDENTITY_COMMA_GZIP \
-  (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[79], GRPC_MDELEM_STORAGE_STATIC))
+#define GRPC_MDELEM_GRPC_ACCEPT_ENCODING_IDENTITY_COMMA_GZIP (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[80], GRPC_MDELEM_STORAGE_STATIC))
 /* "grpc-accept-encoding": "deflate,gzip" */
-#define GRPC_MDELEM_GRPC_ACCEPT_ENCODING_DEFLATE_COMMA_GZIP \
-  (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[80], GRPC_MDELEM_STORAGE_STATIC))
+#define GRPC_MDELEM_GRPC_ACCEPT_ENCODING_DEFLATE_COMMA_GZIP (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[81], GRPC_MDELEM_STORAGE_STATIC))
 /* "grpc-accept-encoding": "identity,deflate,gzip" */
-#define GRPC_MDELEM_GRPC_ACCEPT_ENCODING_IDENTITY_COMMA_DEFLATE_COMMA_GZIP \
-  (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[81], GRPC_MDELEM_STORAGE_STATIC))
+#define GRPC_MDELEM_GRPC_ACCEPT_ENCODING_IDENTITY_COMMA_DEFLATE_COMMA_GZIP (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[82], GRPC_MDELEM_STORAGE_STATIC))
 /* "accept-encoding": "identity" */
-#define GRPC_MDELEM_ACCEPT_ENCODING_IDENTITY \
-  (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[82], GRPC_MDELEM_STORAGE_STATIC))
+#define GRPC_MDELEM_ACCEPT_ENCODING_IDENTITY (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[83], GRPC_MDELEM_STORAGE_STATIC))
 /* "accept-encoding": "gzip" */
-#define GRPC_MDELEM_ACCEPT_ENCODING_GZIP \
-  (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[83], GRPC_MDELEM_STORAGE_STATIC))
+#define GRPC_MDELEM_ACCEPT_ENCODING_GZIP (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[84], GRPC_MDELEM_STORAGE_STATIC))
 /* "accept-encoding": "identity,gzip" */
-#define GRPC_MDELEM_ACCEPT_ENCODING_IDENTITY_COMMA_GZIP \
-  (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[84], GRPC_MDELEM_STORAGE_STATIC))
+#define GRPC_MDELEM_ACCEPT_ENCODING_IDENTITY_COMMA_GZIP (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[85], GRPC_MDELEM_STORAGE_STATIC))

 grpc_mdelem grpc_static_mdelem_for_static_strings(int a, int b);
 typedef enum {
@ -536,47 +446,37 @@ typedef enum {
 typedef union {
  struct grpc_linked_mdelem *array[GRPC_BATCH_CALLOUTS_COUNT];
  struct {
-    struct grpc_linked_mdelem *path;
-    struct grpc_linked_mdelem *method;
-    struct grpc_linked_mdelem *status;
-    struct grpc_linked_mdelem *authority;
-    struct grpc_linked_mdelem *scheme;
-    struct grpc_linked_mdelem *te;
-    struct grpc_linked_mdelem *grpc_message;
-    struct grpc_linked_mdelem *grpc_status;
-    struct grpc_linked_mdelem *grpc_payload_bin;
-    struct grpc_linked_mdelem *grpc_encoding;
-    struct grpc_linked_mdelem *grpc_accept_encoding;
-    struct grpc_linked_mdelem *grpc_server_stats_bin;
-    struct grpc_linked_mdelem *grpc_tags_bin;
-    struct grpc_linked_mdelem *grpc_trace_bin;
-    struct grpc_linked_mdelem *content_type;
-    struct grpc_linked_mdelem *content_encoding;
-    struct grpc_linked_mdelem *accept_encoding;
-    struct grpc_linked_mdelem *grpc_internal_encoding_request;
-    struct grpc_linked_mdelem *grpc_internal_stream_encoding_request;
-    struct grpc_linked_mdelem *user_agent;
-    struct grpc_linked_mdelem *host;
-    struct grpc_linked_mdelem *lb_token;
+  struct grpc_linked_mdelem *path;
+  struct grpc_linked_mdelem *method;
+  struct grpc_linked_mdelem *status;
+  struct grpc_linked_mdelem *authority;
+  struct grpc_linked_mdelem *scheme;
+  struct grpc_linked_mdelem *te;
+  struct grpc_linked_mdelem *grpc_message;
+  struct grpc_linked_mdelem *grpc_status;
+  struct grpc_linked_mdelem *grpc_payload_bin;
+  struct grpc_linked_mdelem *grpc_encoding;
+  struct grpc_linked_mdelem *grpc_accept_encoding;
+  struct grpc_linked_mdelem *grpc_server_stats_bin;
+  struct grpc_linked_mdelem *grpc_tags_bin;
+  struct grpc_linked_mdelem *grpc_trace_bin;
+  struct grpc_linked_mdelem *content_type;
+  struct grpc_linked_mdelem *content_encoding;
+  struct grpc_linked_mdelem *accept_encoding;
+  struct grpc_linked_mdelem *grpc_internal_encoding_request;
+  struct grpc_linked_mdelem *grpc_internal_stream_encoding_request;
+  struct grpc_linked_mdelem *user_agent;
+  struct grpc_linked_mdelem *host;
+  struct grpc_linked_mdelem *lb_token;
  } named;
 } grpc_metadata_batch_callouts;

-#define GRPC_BATCH_INDEX_OF(slice)                      \
-  (GRPC_IS_STATIC_METADATA_STRING((slice))              \
-       ? (grpc_metadata_batch_callouts_index)GPR_CLAMP( \
-             GRPC_STATIC_METADATA_INDEX((slice)), 0,    \
-             GRPC_BATCH_CALLOUTS_COUNT)                 \
-       : GRPC_BATCH_CALLOUTS_COUNT)
+#define GRPC_BATCH_INDEX_OF(slice) \
+  (GRPC_IS_STATIC_METADATA_STRING((slice)) ? (grpc_metadata_batch_callouts_index)GPR_CLAMP(GRPC_STATIC_METADATA_INDEX((slice)), 0, GRPC_BATCH_CALLOUTS_COUNT) : GRPC_BATCH_CALLOUTS_COUNT)

 extern const uint8_t grpc_static_accept_encoding_metadata[8];
-#define GRPC_MDELEM_ACCEPT_ENCODING_FOR_ALGORITHMS(algs)                       \
-  (GRPC_MAKE_MDELEM(                                                           \
-      &grpc_static_mdelem_table[grpc_static_accept_encoding_metadata[(algs)]], \
-      GRPC_MDELEM_STORAGE_STATIC))
+#define GRPC_MDELEM_ACCEPT_ENCODING_FOR_ALGORITHMS(algs) (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[grpc_static_accept_encoding_metadata[(algs)]], GRPC_MDELEM_STORAGE_STATIC))

 extern const uint8_t grpc_static_accept_stream_encoding_metadata[4];
-#define GRPC_MDELEM_ACCEPT_STREAM_ENCODING_FOR_ALGORITHMS(algs)                \
-  (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table                                  \
-                        [grpc_static_accept_stream_encoding_metadata[(algs)]], \
-                    GRPC_MDELEM_STORAGE_STATIC))
+#define GRPC_MDELEM_ACCEPT_STREAM_ENCODING_FOR_ALGORITHMS(algs) (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[grpc_static_accept_stream_encoding_metadata[(algs)]], GRPC_MDELEM_STORAGE_STATIC))
 #endif /* GRPC_CORE_LIB_TRANSPORT_STATIC_METADATA_H */
--- a/test/core/end2end/fuzzers/hpack.dictionary
+++ b/test/core/end2end/fuzzers/hpack.dictionary
@ -137,6 +137,7 @@
 "\x00\x13content-disposition\x00"
 "\x00\x10content-encoding\x08identity"
 "\x00\x10content-encoding\x04gzip"
+"\x00\x10content-encoding\x00"
 "\x00\x10content-language\x00"
 "\x00\x0Econtent-length\x00"
 "\x00\x10content-location\x00"
--- a/tools/codegen/core/gen_static_metadata.py
+++ b/tools/codegen/core/gen_static_metadata.py
@ -92,6 +92,7 @@ CONFIG = [
    ('content-disposition', ''),
    ('content-encoding', 'identity'),
    ('content-encoding', 'gzip'),
+    ('content-encoding', ''),
    ('content-language', ''),
    ('content-length', ''),
    ('content-location', ''),