/* Additional reserved words in GLSL ES 3.00 */
resource KEYWORD(0, 300, 0, 0, RESOURCE);
sample KEYWORD_WITH_ALT(400, 300, 400, 0, yyextra->ARB_gpu_shader5_enable, SAMPLE);
-subroutine KEYWORD(0, 300, 0, 0, SUBROUTINE);
+subroutine KEYWORD_WITH_ALT(400, 300, 400, 0, yyextra->ARB_shader_subroutine_enable, SUBROUTINE);
[_a-zA-Z][_a-zA-Z0-9]* {