glsl2: Disallow non-constant array indexing for unsized arrays.

Fixes piglit test unsized-array-non-const-index.vert.

diff --git a/src/glsl/ast_to_hir.cpp b/src/glsl/ast_to_hir.cpp
index 98090d2b01b0c31b22a799c9c511e26ea2a0dc73..41371e75367831be831c010b2d09743787cf2de3 100644 (file)
--- a/src/glsl/ast_to_hir.cpp
+++ b/src/glsl/ast_to_hir.cpp
@@ -1233,6 +1233,8 @@ ast_expression::hir(exec_list *instructions,
            if ((v != NULL) && (unsigned(idx) > v->max_array_access))
               v->max_array_access = idx;
         }
+      } else if (array->type->array_size() == 0) {
+        _mesa_glsl_error(&loc, state, "unsized array index must be constant");
       }
 
       if (error_emitted)