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r600/sb: handle LDS operations in folding.

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Don't try and fold LDS using expressions.

Acked-By: Roland Scheidegger <sroland@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Dave Airlie 2018-01-10 04:25:20 +00:00
parent c314b0a27a
commit d72590032f
1 changed files with 11 additions and 0 deletions
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11
src/gallium/drivers/r600/sb/sb_expr.cpp
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@ -74,6 +74,8 @@ bool expr_handler::equal(value *l, value *r) {
assert(l != r);
if (l->is_lds_access() || r->is_lds_access())
return false;
if (l->gvalue() == r->gvalue())
return true;
@ -383,8 +385,14 @@ bool expr_handler::fold_alu_op1(alu_node& n) {
if (n.src.empty())
return false;
/* don't fold LDS instructions */
if (n.bc.op_ptr->flags & AF_LDS)
return false;
value* v0 = n.src[0]->gvalue();
if (v0->is_lds_oq() || v0->is_lds_access())
return false;
assert(v0 && n.dst[0]);
if (!v0->is_const()) {
@ -942,6 +950,9 @@ bool expr_handler::fold_alu_op3(alu_node& n) {
value* v1 = n.src[1]->gvalue();
value* v2 = n.src[2]->gvalue();
/* LDS instructions look like op3 with no dst - don't fold. */
if (!n.dst[0])
return false;
assert(v0 && v1 && v2 && n.dst[0]);
bool isc0 = v0->is_const();