glsl: use varName variable in _slang_gen_assignment()

diff --git a/src/mesa/shader/slang/slang_codegen.c b/src/mesa/shader/slang/slang_codegen.c
index b62cfc36af10587ee121047e38b1b6877e63c099..372a9acdd03116ca34a298ec35c351b0af6ba5e7 100644 (file)
--- a/src/mesa/shader/slang/slang_codegen.c
+++ b/src/mesa/shader/slang/slang_codegen.c
@@ -4249,14 +4249,15 @@ _slang_gen_assignment(slang_assemble_ctx * A, slang_operation *oper)
 
    if (oper->children[0].type == SLANG_OPER_IDENTIFIER) {
       /* Check that var is writeable */
+      const char *varName = (char *) oper->children[0].a_id;
       slang_variable *var
          = _slang_variable_locate(oper->children[0].locals,
                                   oper->children[0].a_id, GL_TRUE);
       if (!var) {
-         slang_info_log_error(A->log, "undefined variable '%s'",
-                              (char *) oper->children[0].a_id);
+         slang_info_log_error(A->log, "undefined variable '%s'", varName);
          return NULL;
       }
+
       if (var->type.qualifier == SLANG_QUAL_CONST ||
           var->type.qualifier == SLANG_QUAL_ATTRIBUTE ||
           var->type.qualifier == SLANG_QUAL_UNIFORM ||
@@ -4264,7 +4265,7 @@ _slang_gen_assignment(slang_assemble_ctx * A, slang_operation *oper)
            A->program->Target == GL_FRAGMENT_PROGRAM_ARB)) {
          slang_info_log_error(A->log,
                               "illegal assignment to read-only variable '%s'",
-                              (char *) oper->children[0].a_id);
+                              varName);
          return NULL;
       }