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-rw-r--r--src/glsl/ast_to_hir.cpp15
-rw-r--r--src/glsl/glsl_parser_extras.h1
2 files changed, 16 insertions, 0 deletions
diff --git a/src/glsl/ast_to_hir.cpp b/src/glsl/ast_to_hir.cpp
index 4f328ad8f46..c580359fdd0 100644
--- a/src/glsl/ast_to_hir.cpp
+++ b/src/glsl/ast_to_hir.cpp
@@ -3537,6 +3537,7 @@ ast_switch_statement::hir(exec_list *instructions,
state->switch_state.switch_nesting_ast = this;
state->switch_state.labels_ht = hash_table_ctor(0, hash_table_pointer_hash,
hash_table_pointer_compare);
+ state->switch_state.previous_default = NULL;
/* Initalize is_fallthru state to false.
*/
@@ -3749,6 +3750,20 @@ ast_switch_statement::hir(exec_list *instructions,
instructions->push_tail(set_fallthru_on_test);
} else { /* default case */
+ if (state->switch_state.previous_default) {
+ printf("a\n");
+ YYLTYPE loc = this->get_location();
+ _mesa_glsl_error(& loc, state,
+ "multiple default labels in one switch");
+
+ printf("b\n");
+
+ loc = state->switch_state.previous_default->get_location();
+ _mesa_glsl_error(& loc, state,
+ "this is the first default label");
+ }
+ state->switch_state.previous_default = this;
+
/* Set falltrhu state.
*/
ir_assignment *set_fallthru =
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, ...
};