i965: Use the implied move in brw_math() in the new FS.

diff --git a/src/mesa/drivers/dri/i965/brw_fs.cpp b/src/mesa/drivers/dri/i965/brw_fs.cpp
index 57c5f553418c7d868522c8ad7f2685f70dbcc3e2..f856ee79fa6f5653578f9769016f93a9dd0b24c5 100644 (file)
--- a/src/mesa/drivers/dri/i965/brw_fs.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs.cpp
@@ -1175,7 +1175,6 @@ fs_visitor::generate_math(fs_inst *inst,
       break;
    }
 
-   brw_MOV(p, brw_message_reg(2), src[0]);
    if (inst->opcode == FS_OPCODE_POW) {
       brw_MOV(p, brw_message_reg(3), src[1]);
    }
@@ -1184,7 +1183,7 @@ fs_visitor::generate_math(fs_inst *inst,
            op,
            inst->saturate ? BRW_MATH_SATURATE_SATURATE :
            BRW_MATH_SATURATE_NONE,
-           2, brw_null_reg(),
+           2, src[0],
            BRW_MATH_DATA_VECTOR,
            BRW_MATH_PRECISION_FULL);
 }