glsl: Fix preprocessor define argument parsing for dead sections.

diff --git a/src/mesa/shader/slang/slang_preprocess.c b/src/mesa/shader/slang/slang_preprocess.c
index c3df76ded54c0473f1f1d99dbab8e22065b7f63b..c16a1111322e087e92afa79c8c1cae5bef74b570 100644 (file)
--- a/src/mesa/shader/slang/slang_preprocess.c
+++ b/src/mesa/shader/slang/slang_preprocess.c
@@ -1035,11 +1035,11 @@ preprocess_source (slang_string *output, const char *source,
 
                /* Parse optional macro parameters. */
                while (prod[i++] != PARAM_END) {
-                  if (state.cond.top->effective) {
-                     pp_symbol *param;
+                  pp_symbol *param;
 
-                     id = (const char *) (&prod[i]);
-                     idlen = _mesa_strlen (id);
+                  id = (const char *) (&prod[i]);
+                  idlen = _mesa_strlen (id);
+                  if (state.cond.top->effective) {
                      pp_annotate (output, "%s, ", id);
                      param = pp_symbols_push (&symbol->parameters);
                      if (param == NULL)