r600/sfn: allow more copy-propagate with dest chan fixed.

Signed-off-by: Gert Wollny <gert.wollny@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/20205>

diff --git a/src/gallium/drivers/r600/sfn/sfn_instr_alu.cpp b/src/gallium/drivers/r600/sfn/sfn_instr_alu.cpp
index a9e1b7e..fdca6b1 100644 (file)
--- a/src/gallium/drivers/r600/sfn/sfn_instr_alu.cpp
+++ b/src/gallium/drivers/r600/sfn/sfn_instr_alu.cpp
@@ -326,6 +326,7 @@ AluInstr::can_propagate_src() const
 
    if (m_dest->pin() == pin_chan)
       return src_reg->pin() == pin_none ||
+             src_reg->pin() == pin_free ||
              (src_reg->pin() == pin_chan && src_reg->chan() == m_dest->chan());
 
    return m_dest->pin() == pin_none || m_dest->pin() == pin_free;