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r600g/sb: treat undefined values like constants

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When we schedule an instructions with undefined value, we
eventually will use 0, which is a constant, however sb wasn't
taking this into account and creating ops with illegal scalar
swizzles.

this replaces my fix for op3 in t slots.

Reviewed-by: Glenn Kennard <glenn.kennard@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
(cherry picked from commit e8e4437ed0)
This commit is contained in:
Dave Airlie 2015-02-18 10:13:20 +10:00 • committed by Emil Velikov
parent 7c448551eb
commit c0f425bb81
1 changed files with 2 additions and 2 deletions
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4
src/gallium/drivers/r600/sb/sb_sched.cpp
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@ -266,7 +266,7 @@ bool rp_gpr_tracker::try_reserve(alu_node* n) {
for (i = 0; i < nsrc; ++i) {
value *v = n->src[i];
if (v->is_readonly()) {
if (v->is_readonly() || v->is_undef()) {
const_count++;
if (trans && const_count == 3)
break;
@ -295,7 +295,7 @@ bool rp_gpr_tracker::try_reserve(alu_node* n) {
if (need_unreserve && i--) {
do {
value *v = n->src[i];
if (!v->is_readonly()) {
if (!v->is_readonly() && !v->is_undef()) {
if (i == 1 && opt)
continue;
unreserve(bs_cycle(trans, bs, i), n->bc.src[i].sel,