1 files changed, 4 insertions, 0 deletions
diff --git a/src/mesa/pipe/tgsi/mesa/mesa_to_tgsi.c b/src/mesa/pipe/tgsi/mesa/mesa_to_tgsi.c
index d0d97ab0f8..fa27fd3cd0 100644
--- a/src/mesa/pipe/tgsi/mesa/mesa_to_tgsi.c
+++ b/src/mesa/pipe/tgsi/mesa/mesa_to_tgsi.c
@@ -476,6 +476,8 @@ make_input_decl(
 {
    struct tgsi_full_declaration decl;
 
+   assert(semantic_name < TGSI_SEMANTIC_COUNT);
+
    decl = tgsi_default_full_declaration();
    decl.Declaration.File = TGSI_FILE_INPUT;
    decl.Declaration.Declare = TGSI_DECLARE_RANGE;
@@ -500,6 +502,8 @@ make_output_decl(
 {
    struct tgsi_full_declaration decl;
 
+   assert(semantic_name < TGSI_SEMANTIC_COUNT);
+
    decl = tgsi_default_full_declaration();
    decl.Declaration.File = TGSI_FILE_OUTPUT;
    decl.Declaration.Declare = TGSI_DECLARE_RANGE;