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i965/fs: Replace usage is_tex() with regs_written() checks.

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In these places, we care about any sort of send that hits more than one reg,
not just textures.  We don't yet have anything else returning more than one
reg, so there's no change.

v2: Use mlen instead of is_tex() for the is-it-a-send check.

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
This commit is contained in:
Eric Anholt 2012-07-06 14:51:44 -07:00
parent a6411520b4
commit fc01376c50
1 changed files with 9 additions and 9 deletions
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18
src/mesa/drivers/dri/i965/brw_fs.cpp
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@ -1063,8 +1063,10 @@ fs_visitor::split_virtual_grfs()
foreach_list(node, &this->instructions) {
fs_inst *inst = (fs_inst *)node;
/* Texturing produces 4 contiguous registers, so no splitting. */
if (inst->is_tex()) {
/* If there's a SEND message that requires contiguous destination
* registers, no splitting is allowed.
*/
if (inst->regs_written() > 1) {
split_grf[inst->dst.reg] = false;
}
}
@ -1400,7 +1402,7 @@ fs_visitor::propagate_constants()
if (scan_inst->dst.file == GRF &&
scan_inst->dst.reg == inst->dst.reg &&
(scan_inst->dst.reg_offset == inst->dst.reg_offset ||
scan_inst->is_tex())) {
scan_inst->regs_written() > 1)) {
break;
}
}
@ -1602,14 +1604,14 @@ fs_visitor::register_coalesce()
if (scan_inst->dst.file == GRF) {
if (scan_inst->dst.reg == inst->dst.reg &&
(scan_inst->dst.reg_offset == inst->dst.reg_offset ||
scan_inst->is_tex())) {
scan_inst->regs_written() > 1)) {
interfered = true;
break;
}
if (inst->src[0].file == GRF &&
scan_inst->dst.reg == inst->src[0].reg &&
(scan_inst->dst.reg_offset == inst->src[0].reg_offset ||
scan_inst->is_tex())) {
scan_inst->regs_written() > 1)) {
interfered = true;
break;
}
@ -1729,10 +1731,8 @@ fs_visitor::compute_to_mrf()
* into a compute-to-MRF.
*/
if (scan_inst->is_tex()) {
/* texturing writes several continuous regs, so we can't
* compute-to-mrf that.
*/
/* SENDs can only write to GRFs, so no compute-to-MRF. */
if (scan_inst->mlen) {
break;
}