i965/vec4: Don't attempt to reduce swizzles of send from GRF instructions.

Reviewed-by: Matt Turner <mattst88@gmail.com>

diff --git a/src/mesa/drivers/dri/i965/brw_vec4.cpp b/src/mesa/drivers/dri/i965/brw_vec4.cpp
index 58828c3..0a68413 100644 (file)
--- a/src/mesa/drivers/dri/i965/brw_vec4.cpp
+++ b/src/mesa/drivers/dri/i965/brw_vec4.cpp
@@ -455,7 +455,8 @@ vec4_visitor::opt_reduce_swizzle()
    bool progress = false;
 
    foreach_block_and_inst_safe(block, vec4_instruction, inst, cfg) {
-      if (inst->dst.file == BAD_FILE || inst->dst.file == HW_REG)
+      if (inst->dst.file == BAD_FILE || inst->dst.file == HW_REG ||
+          inst->is_send_from_grf())
          continue;
 
       int swizzle[4];