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-rw-r--r--src/mesa/shader/slang/slang_builtin.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/mesa/shader/slang/slang_builtin.c b/src/mesa/shader/slang/slang_builtin.c
index f0659a8d8bb..791e751526d 100644
--- a/src/mesa/shader/slang/slang_builtin.c
+++ b/src/mesa/shader/slang/slang_builtin.c
@@ -182,6 +182,7 @@ lookup_statevar(const char *var, GLint index1, GLint index2, const char *field,
tokens[1] = 0;
else
tokens[1] = 1;
+ assert(field);
if (strcmp(field, "emission") == 0) {
tokens[2] = STATE_EMISSION;
}