From b259eb28049fc06ebc75a7714834b9ed037a3454 Mon Sep 17 00:00:00 2001 From: Eric Anholt Date: Thu, 5 Aug 2010 12:24:36 -0700 Subject: [PATCH] glsl2: Don't tree-grafting out assignment to an out variable. Fixes: glsl-deadcode-varying. --- src/glsl/ir_tree_grafting.cpp | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/src/glsl/ir_tree_grafting.cpp b/src/glsl/ir_tree_grafting.cpp index 38034a61977..1a742f412cb 100644 --- a/src/glsl/ir_tree_grafting.cpp +++ b/src/glsl/ir_tree_grafting.cpp @@ -319,6 +319,10 @@ tree_grafting_basic_block(ir_instruction *bb_first, if (!lhs_var) continue; + if (lhs_var->mode == ir_var_out || + lhs_var->mode == ir_var_inout) + continue; + struct variable_entry *entry = info->refs->get_variable_entry(lhs_var); if (!entry->declaration || -- 2.30.2