From: Ilia Mirkin <imirkin@alum.mit.edu>
Date: Mon, 2 Jan 2017 04:00:46 +0000 (-0500)
Subject: glsl: avoid treating fb fetches as output reads to be lowered
X-Git-Tag: upstream/17.1.0~3075
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=2dd4cdeb4ee7b93d57d317175e3e3483dbf82aaf;p=platform%2Fupstream%2Fmesa.git

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

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

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);