Some valgrind fixes

Former-commit-id: ba974c9810dc30b6b5bd21c4bcc6cc5b219f7ea4

src/Makefile

@@ -408,7 +408,7 @@ noopt:
 	$(MAKE) OPTIMIZATION="-O0"
 
 valgrind:
-	$(MAKE) OPTIMIZATION="-O0" MALLOC="libc" CFLAGS="-DSANITIZE" CXXFLAGS="-DSANITIZE"
+	$(MAKE) OPTIMIZATION="-O0" USEASM="false" MALLOC="libc" CFLAGS="-DSANITIZE" CXXFLAGS="-DSANITIZE"
 
 helgrind:
 	$(MAKE) OPTIMIZATION="-O0" MALLOC="libc" CFLAGS="-D__ATOMIC_VAR_FORCE_SYNC_MACROS"

src/ae.cpp

@@ -294,6 +294,7 @@ int aePostFunction(aeEventLoop *eventLoop, std::function<void()> fn, bool fSynch
     }
 
     aeCommand cmd = {};
+    memset(&cmd, 0, sizeof(aeCommand));
     cmd.op = AE_ASYNC_OP::PostCppFunction;
     cmd.pfn = new (MALLOC_LOCAL) std::function<void()>(fn);
     cmd.pctl = nullptr;

src/db.cpp

@@ -1173,6 +1173,7 @@ void moveCommand(client *c) {
     /* Return zero if the key already exists in the target DB */
     if (lookupKeyWrite(dst,c->argv[1]) != NULL) {
         addReply(c,shared.czero);
+        decrRefCount(o);
         return;
     }
     dbAdd(dst,c->argv[1],o);

src/replication.cpp

@@ -2561,7 +2561,7 @@ int slaveTryPartialResynchronization(redisMaster *mi, connection *conn, int read
  * establish a connection with the master. */
 void syncWithMaster(connection *conn) {
     serverAssert(GlobalLocksAcquired());
-    char tmpfile[256], *err = NULL;
+    char tmpfile[256] = {0}, *err = NULL;
     int dfd = -1, maxtries = 5;
     int psync_result;