This is not allowed by the HW and copy propagation can hide this issue to
lower_simd_width pass, which is going to fix it.
Signed-off-by: Samuel Iglesias Gonsálvez <sigles...@igalia.com>
---
src/mesa/drivers/dri/i965/brw_fs_copy_propagation.cpp | 1 +
1 file changed, 1 insertion(+)
diff --git a/src/mesa/drivers/dri/i965/brw_fs_copy_propagation.cpp
b/src/mesa/drivers/dri/i965/brw_fs_copy_propagation.cpp
index 438f681..c7f7628 100644
--- a/src/mesa/drivers/dri/i965/brw_fs_copy_propagation.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs_copy_propagation.cpp
@@ -752,6 +752,7 @@ can_propagate_from(fs_inst *inst)
inst->src[0].file == UNIFORM ||
inst->src[0].file == IMM) &&
inst->src[0].type == inst->dst.type &&
+ inst->regs_written <= 2 &&
!inst->is_partial_write());
}
--
2.7.4
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