If we need to lower a move for a read from a vec2 texture coordinate, we
shouldn't write zw, even incidentally.
Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzw...@collabora.com>
---
src/panfrost/midgard/midgard_ra.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/src/panfrost/midgard/midgard_ra.c
b/src/panfrost/midgard/midgard_ra.c
index 5df8ecf0df0..6a417d48c91 100644
--- a/src/panfrost/midgard/midgard_ra.c
+++ b/src/panfrost/midgard/midgard_ra.c
@@ -501,6 +501,7 @@ mir_lower_special_reads(compiler_context *ctx)
} else {
idx = spill_idx++;
m = v_mov(i, blank_alu_src, idx);
+ m.mask =
mir_mask_of_read_components(pre_use, i);
mir_insert_instruction_before(pre_use,
m);
mir_rewrite_index_src_single(pre_use,
i, idx);
}
--
2.23.0.rc1
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