glsl_to_tgsi: fix a bug in copy propagation

This fixes the new piglit test: arb_uniform_buffer_object/2-buffers-bug

Cc: 10.2 10.3 10.4 <mesa-stable@lists.freedesktop.org>
Reviewed-by: Brian Paul <brianp@vmware.com>

diff --git a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
index 2631348..8965434 100644 (file)
--- a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
+++ b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
@@ -3553,7 +3553,8 @@ glsl_to_tgsi_visitor::copy_propagate(void)
                first = copy_chan;
             } else {
                if (first->src[0].file != copy_chan->src[0].file ||
-                  first->src[0].index != copy_chan->src[0].index) {
+                   first->src[0].index != copy_chan->src[0].index ||
+                   first->src[0].index2D != copy_chan->src[0].index2D) {
                  good = false;
                  break;
                }