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-rw-r--r--mesalib/src/glsl/ast_to_hir.cpp13
1 files changed, 13 insertions, 0 deletions
diff --git a/mesalib/src/glsl/ast_to_hir.cpp b/mesalib/src/glsl/ast_to_hir.cpp
index 91a223160..4f8a5482b 100644
--- a/mesalib/src/glsl/ast_to_hir.cpp
+++ b/mesalib/src/glsl/ast_to_hir.cpp
@@ -2803,6 +2803,19 @@ ast_declarator_list::hir(exec_list *instructions,
_mesa_glsl_error(& loc, state,
"identifier `%s' uses reserved `gl_' prefix",
decl->identifier);
+ else if (state->language_version >= 130 &&
+ strstr(decl->identifier, "__")) {
+ /* From page 14 (page 20 of the PDF) of the GLSL 1.10
+ * spec:
+ *
+ * "In addition, all identifiers containing two
+ * consecutive underscores (__) are reserved as
+ * possible future keywords."
+ */
+ _mesa_glsl_error(& loc, state,
+ "identifier `%s' uses reserved `__' string",
+ decl->identifier);
+ }
/* Add the variable to the symbol table. Note that the initializer's
* IR was already processed earlier (though it hasn't been emitted