fdo-mirrors/mesa
1
0
Fork 0
mirror of https://gitlab.freedesktop.org/mesa/mesa.git synced 2026-05-05 13:58:04 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions 2

vc4: Drop the support for DCE of texture instructions.

Browse source 
Now that we're using NIR for our optimization, there's no need for this
tricky code.
This commit is contained in:
Eric Anholt 2016-04-27 16:48:17 -07:00
parent 155ce49603
commit 3bee7581e6
1 changed files with 1 additions and 22 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

23
src/gallium/drivers/vc4/vc4_opt_dead_code.c
View file

@ -83,22 +83,14 @@ qir_opt_dead_code(struct vc4_compile *c)
bool progress = false;
bool *used = calloc(c->num_temps, sizeof(bool));
bool sf_used = false;
/* Whether we're eliminating texture setup currently. */
bool dce_tex = false;
list_for_each_entry_safe_rev(struct qinst, inst, &c->instructions,
link) {
if (inst->dst.file == QFILE_TEMP &&
!used[inst->dst.index] &&
!inst->sf &&
(!qir_has_side_effects(c, inst) ||
inst->op == QOP_TEX_RESULT) &&
!qir_has_side_effects(c, inst) &&
!has_nonremovable_reads(c, inst)) {
if (inst->op == QOP_TEX_RESULT) {
dce_tex = true;
c->num_texture_samples--;
}
for (int i = 0; i < qir_get_op_nsrc(inst->op); i++) {
if (inst->src[i].file != QFILE_VPM)
continue;
@ -132,19 +124,6 @@ qir_opt_dead_code(struct vc4_compile *c)
sf_used = false;
}
if (inst->op == QOP_TEX_RESULT)
dce_tex = false;
if (dce_tex && (inst->op == QOP_TEX_S ||
inst->op == QOP_TEX_T ||
inst->op == QOP_TEX_R ||
inst->op == QOP_TEX_B ||
inst->op == QOP_TEX_DIRECT)) {
dce(c, inst);
progress = true;
continue;
}
for (int i = 0; i < qir_get_op_nsrc(inst->op); i++) {
if (inst->src[i].file == QFILE_TEMP)
used[inst->src[i].index] = true;