Module: Mesa
Branch: master
Commit: cca1e9606c1fa05dafb994d2d1d92a9b2a35c5c2
URL:
http://cgit.freedesktop.org/mesa/mesa/commit/?id=cca1e9606c1fa05dafb994d2d1d92a9b2a35c5c2
Author: Rob Clark <robdcl...@gmail.com>
Date: Thu Dec 13 13:50:50 2018 -0500
freedreno/ir3: don't remove unused input components
Fixes: 0d240c22141 freedreno/ir3: don't fetch unused tex components
Signed-off-by: Rob Clark <robdcl...@gmail.com>
---
src/freedreno/ir3/ir3_depth.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/src/freedreno/ir3/ir3_depth.c b/src/freedreno/ir3/ir3_depth.c
index 4e377fa4ee..e0500b4316 100644
--- a/src/freedreno/ir3/ir3_depth.c
+++ b/src/freedreno/ir3/ir3_depth.c
@@ -176,7 +176,13 @@ remove_unused_by_block(struct ir3_block *block)
if (instr->flags & IR3_INSTR_UNUSED) {
if (instr->opc == OPC_META_FO) {
struct ir3_instruction *src =
ssa(instr->regs[1]);
- if (src->regs[0]->wrmask > 1) {
+ /* leave inputs alone.. we can't optimize out
components of
+ * an input, since the hw is still going to be
writing all
+ * of the components, and we could end up in a
situation
+ * where multiple inputs overlap.
+ */
+ if ((src->opc != OPC_META_INPUT) &&
+ (src->regs[0]->wrmask > 1)) {
src->regs[0]->wrmask &= ~(1 <<
instr->fo.off);
/* prune no-longer needed
right-neighbors. We could
_______________________________________________
mesa-commit mailing list
mesa-commit@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/mesa-commit
