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authorEric Anholt <[email protected]>2015-06-23 18:08:49 -0700
committerEric Anholt <[email protected]>2015-06-23 18:40:50 -0700
commit997f6778414a352457162b73ff5295e51e09ad63 (patch)
treee42f1f674daf176a35029c1f483c3a5c352e31de
parent0f69d59b1c8f5314c1abe18659b96adcfc51a0e5 (diff)
vc4: Don't try to CSE color reads.
It returns a new value for each sample in the TLB. We've already avoided trying to get the same index's color multiple times at the vc4_program.c level, so we're not losing anything by doing this.
-rw-r--r--src/gallium/drivers/vc4/vc4_opt_cse.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/gallium/drivers/vc4/vc4_opt_cse.c b/src/gallium/drivers/vc4/vc4_opt_cse.c
index 92c8260eb59..51a56504e5e 100644
--- a/src/gallium/drivers/vc4/vc4_opt_cse.c
+++ b/src/gallium/drivers/vc4/vc4_opt_cse.c
@@ -130,7 +130,8 @@ qir_opt_cse(struct vc4_compile *c)
list_for_each_entry(struct qinst, inst, &c->instructions, link) {
if (qir_has_side_effects(c, inst) ||
- qir_has_side_effect_reads(c, inst)) {
+ qir_has_side_effect_reads(c, inst) ||
+ inst->op == QOP_TLB_COLOR_READ) {
continue;
}