Merge branch 'master' into maybe-deps

BUILD

@@ -259,9 +259,9 @@ cc_library(
         "//conditions:default": CPPOPTS
     }),
     deps = [
-        "@absl//absl/base:core_headers",
-        "@absl//absl/container:flat_hash_map",
-        "@absl//absl/strings",
+        "@com_google_absl//absl/base:core_headers",
+        "@com_google_absl//absl/container:flat_hash_map",
+        "@com_google_absl//absl/strings",
         "@com_google_protobuf//:protobuf",
         "@com_google_protobuf//:protoc_lib",
     ],

bazel/workspace_deps.bzl

@@ -12,7 +12,7 @@ def upb_deps():
 
     maybe(
         git_repository,
-        name = "absl",
+        name = "com_google_absl",
         commit = "070f6e47b33a2909d039e620c873204f78809492",
         remote = "https://github.com/abseil/abseil-cpp.git",
         shallow_since = "1541627663 -0500",

upb/table.c

@@ -756,7 +756,8 @@ uint32_t upb_murmur_hash2(const void *key, size_t len, uint32_t seed) {
   /* Mix 4 bytes at a time into the hash */
   const uint8_t * data = (const uint8_t *)key;
   while(len >= 4) {
-    uint32_t k = *(uint32_t *)data;
+    uint32_t k;
+    memcpy(&k, data, sizeof(k));
 
     k *= m;
     k ^= k >> r;