From 9bb60a155fbbee70113c8742e3157a371ac8c586 Mon Sep 17 00:00:00 2001 From: Paul Berry Date: Fri, 27 Sep 2013 14:18:09 -0700 Subject: glsl: Don't allow unnamed interface blocks to redeclare variables. Note: some limited amount of redeclaration is actually allowed, provided the shader is redeclaring the built-in gl_PerVertex interface block. Support for this will be added in future patches. Fixes piglit tests spec/glsl-1.50/compiler/unnamed-interface-block-elem-conflicts-with-prev-{block-elem,global}.vert. Reviewed-by: Kenneth Graunke Reviewed-by: Ian Romanick --- src/glsl/ast_to_hir.cpp | 3 +++ 1 file changed, 3 insertions(+) (limited to 'src/glsl/ast_to_hir.cpp') diff --git a/src/glsl/ast_to_hir.cpp b/src/glsl/ast_to_hir.cpp index 90401adaafe..c06a2a9c69a 100644 --- a/src/glsl/ast_to_hir.cpp +++ b/src/glsl/ast_to_hir.cpp @@ -4742,6 +4742,9 @@ ast_interface_block::hir(exec_list *instructions, var_mode); var->init_interface_type(block_type); + if (state->symbols->get_variable(var->name) != NULL) + _mesa_glsl_error(&loc, state, "`%s' redeclared", var->name); + /* Propagate the "binding" keyword into this UBO's fields; * the UBO declaration itself doesn't get an ir_variable unless it * has an instance name. This is ugly. -- cgit v1.2.3