Mesa (master): glsl: avoid treating fb fetches as output reads to be lowered

[Ilia Mirkin]

Module: Mesa
Branch: master
Commit: 2dd4cdeb4ee7b93d57d317175e3e3483dbf82aaf
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=2dd4cdeb4ee7b93d57d317175e3e3483dbf82aaf

Author: Ilia Mirkin <imirkin at alum.mit.edu>
Date:   Sun Jan  1 23:00:46 2017 -0500

glsl: avoid treating fb fetches as output reads to be lowered

Signed-off-by: Ilia Mirkin <imirkin at alum.mit.edu>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle at amd.com>

---

 src/compiler/glsl/lower_output_reads.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/compiler/glsl/lower_output_reads.cpp b/src/compiler/glsl/lower_output_reads.cpp
index 851078b..bd3accb 100644
--- a/src/compiler/glsl/lower_output_reads.cpp
+++ b/src/compiler/glsl/lower_output_reads.cpp
@@ -90,7 +90,7 @@ output_read_remover::~output_read_remover()
 ir_visitor_status
 output_read_remover::visit(ir_dereference_variable *ir)
 {
-   if (ir->var->data.mode != ir_var_shader_out)
+   if (ir->var->data.mode != ir_var_shader_out || ir->var->data.fb_fetch_output)
       return visit_continue;
 
    hash_entry *entry = _mesa_hash_table_search(replacements, ir->var);