glsl2: Forbid array-types in ?: operator in GLSL 1.10

Fixes bugzilla #30039.

diff --git a/src/glsl/ast_to_hir.cpp b/src/glsl/ast_to_hir.cpp
index 762f802..7828403 100644 (file)
--- a/src/glsl/ast_to_hir.cpp
+++ b/src/glsl/ast_to_hir.cpp
@@ -1125,6 +1125,17 @@ ast_expression::hir(exec_list *instructions,
         type = op[1]->type;
       }
 
+      /* From page 33 (page 39 of the PDF) of the GLSL 1.10 spec:
+       *
+       *    "The second and third expressions must be the same type, but can
+       *    be of any type other than an array."
+       */
+      if ((state->language_version <= 110) && type->is_array()) {
+        _mesa_glsl_error(& loc, state, "Second and third operands of ?: "
+                         "operator must not be arrays.");
+        error_emitted = true;
+      }
+
       ir_constant *cond_val = op[0]->constant_expression_value();
       ir_constant *then_val = op[1]->constant_expression_value();
       ir_constant *else_val = op[2]->constant_expression_value();