glsl: Add error case for switch() with two default cases.

Fixes piglit switch-case-duplicated.vert.

NOTE: This is a candidate for the 8.0 branch.

Reviewed-by: Ian Romanick <[email protected]>

1 files changed, 1 insertions, 0 deletions

diff --git a/src/glsl/glsl_parser_extras.h b/src/glsl/glsl_parser_extras.h
index d5d5101a820..ee8f71b8280 100644
--- a/src/glsl/glsl_parser_extras.h
+++ b/src/glsl/glsl_parser_extras.h
@@ -51,6 +51,7 @@ struct glsl_switch_state {
 
    /** Table of constant values already used in case labels */
    struct hash_table *labels_ht;
+   class ast_case_label *previous_default;
 
    bool is_switch_innermost; // if switch stmt is closest to break, ...
 };