Mesa (master): r600: fix regression in gl_FragColor drawing

[Dave Airlie]

Module: Mesa
Branch: master
Commit: b9d2ff05a64f751f5814314b2cce45e6270ddf7f
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=b9d2ff05a64f751f5814314b2cce45e6270ddf7f

Author: Dave Airlie <airlied at redhat.com>
Date:   Wed Feb 14 13:59:09 2018 +1000

r600: fix regression in gl_FragColor drawing

This fixes a regression in the broadcast color to all color bufs case.

Fixes: 6c691081a (r600: fixup sparse color exports.)
Signed-off-by: Dave Airlie <airlied at redhat.com>

---

 src/gallium/drivers/r600/r600_shader.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/gallium/drivers/r600/r600_shader.c b/src/gallium/drivers/r600/r600_shader.c
index 7d60bd90c3..b49c79c040 100644
--- a/src/gallium/drivers/r600/r600_shader.c
+++ b/src/gallium/drivers/r600/r600_shader.c
@@ -4123,6 +4123,8 @@ static int r600_shader_from_tgsi(struct r600_context *rctx,
 							output[j].op = CF_OP_EXPORT;
 							output[j].type = V_SQ_CF_ALLOC_EXPORT_WORD0_SQ_EXPORT_PIXEL;
 							shader->nr_ps_color_exports++;
+							if (k > shader->ps_export_highest)
+								shader->ps_export_highest = k;
 							shader->ps_color_export_mask |= (0xf << (j * 4));
 						}
 					}