Right now we don't have anything with regs_written() > 1 and !inst->mlen,
but that's about to change.
NOTE: This is a candidate for the 9.1 branch.
---
src/mesa/drivers/dri/i965/brw_fs.cpp | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/src/mesa/drivers/dri/i965/brw_fs.cpp
b/src/mesa/drivers/dri/i965/brw_fs.cpp
index fbe9e3a..f1b0789 100644
--- a/src/mesa/drivers/dri/i965/brw_fs.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs.cpp
@@ -2087,6 +2087,12 @@ fs_visitor::compute_to_mrf()
break;
}
+ /* Things returning more than one register would need us to
+ * understand coalescing out more than one MOV at a time.
+ */
+ if (scan_inst->regs_written() > 1)
+ break;
+
/* SEND instructions can't have MRF as a destination. */
if (scan_inst->mlen)
break;
--
1.7.10.4
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