Test how fast clang is

Author: iluuu1994

.cirrus.yml

@@ -53,7 +53,8 @@ asan_task:
         `#snmp-mibs-downloader`
         `#freetds-dev`
         `#unixodbc-dev`
-        `#llvm`
+        llvm
+        clang
         libc-client-dev
         dovecot-core
         dovecot-pop3d
@@ -77,6 +78,8 @@ asan_task:
         --prefix=/usr
         --enable-phpdbg
         --enable-fpm
+        --enable-opcache
+        --disable-opcache-jit
         --with-pdo-mysql=mysqlnd
         --with-mysqli=mysqlnd
         `#--with-pgsql`
@@ -144,7 +147,9 @@ asan_task:
         `#--with-pdo-firebird`
         `#--with-pdo-dblib`
         --enable-werror
-        CFLAGS='-fsanitize=undefined,address -DZEND_TRACK_ARENA_ALLOC -Wno-stringop-overread' LDFLAGS='-fsanitize=undefined,address'
+        CFLAGS='-fsanitize=undefined,address -DZEND_TRACK_ARENA_ALLOC' LDFLAGS='-fsanitize=undefined,address'
+        CC=clang
+        CXX=clang++
     - make -j2
     - make install
     - mkdir -p /etc/php.d