i965/fs: Properly handle LOAD_PAYLOAD in fs_inst::regs_read

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

diff --git a/src/mesa/drivers/dri/i965/brw_fs.cpp b/src/mesa/drivers/dri/i965/brw_fs.cpp
index d91ad0a06506dc641c54decc2efee6003d87ae1c..cae4e4263eaab585631231862be49cf8e920c98b 100644 (file)
--- a/src/mesa/drivers/dri/i965/brw_fs.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs.cpp
@@ -733,6 +733,11 @@ fs_inst::regs_read(int arg) const
          components = 1;
       break;
 
+   case SHADER_OPCODE_LOAD_PAYLOAD:
+      if (arg < this->header_size)
+         return 1;
+      break;
+
    default:
       if (is_tex() && arg == 0 && src[0].file == GRF)
          return mlen;