nv50: fix saturation outside of tx_insn case

diff --git a/src/gallium/drivers/nv50/nv50_program.c b/src/gallium/drivers/nv50/nv50_program.c
index dd7634c..3f834b5 100644 (file)
--- a/src/gallium/drivers/nv50/nv50_program.c
+++ b/src/gallium/drivers/nv50/nv50_program.c
@@ -1821,7 +1821,7 @@ nv50_program_tx_insn(struct nv50_pc *pc,
                for (c = 0; c < 4; c++) {
                        if (!(mask & (1 << c)) || dst[c]->type == P_TEMP)
                                continue;
-                       rdst[c] = dst[c];
+                       /* rdst[c] = dst[c]; */ /* done above */
                        dst[c] = temp_temp(pc);
                }
        }
@@ -2150,8 +2150,10 @@ nv50_program_tx_insn(struct nv50_pc *pc,
                for (c = 0; c < 4; c++) {
                        if (!(mask & (1 << c)))
                                continue;
-                       /* in this case we saturate later */
-                       if (dst[c]->type == P_TEMP && dst[c]->index < 0)
+                       /* In this case we saturate later, and dst[c] won't
+                        * be another temp_temp (and thus lost), since rdst
+                        * already is TEMP (see above). */
+                       if (rdst[c]->type == P_TEMP && rdst[c]->index < 0)
                                continue;
                        emit_sat(pc, rdst[c], dst[c]);
                }