From f64edfdc44d955adfe3e99154559e7935a2efd45 Mon Sep 17 00:00:00 2001 From: Francisco Jerez Date: Thu, 4 Dec 2014 10:42:11 +0200 Subject: [PATCH] glsl: Forbid opaque variables as operands of the ternary operator. Reviewed-by: Matt Turner --- src/glsl/ast_to_hir.cpp | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/src/glsl/ast_to_hir.cpp b/src/glsl/ast_to_hir.cpp index 18b82e3..da063d5 100644 --- a/src/glsl/ast_to_hir.cpp +++ b/src/glsl/ast_to_hir.cpp @@ -1558,6 +1558,18 @@ ast_expression::do_hir(exec_list *instructions, error_emitted = true; } + /* From section 4.1.7 of the GLSL 4.50 spec (Opaque Types): + * + * "Except for array indexing, structure member selection, and + * parentheses, opaque variables are not allowed to be operands in + * expressions; such use results in a compile-time error." + */ + if (type->contains_opaque()) { + _mesa_glsl_error(&loc, state, "opaque variables cannot be operands " + "of the ?: operator"); + error_emitted = true; + } + ir_constant *cond_val = op[0]->constant_expression_value(); if (then_instructions.is_empty() -- 2.7.4