[PATCH, PR testsuite/66734] Support MPX tests in lto.exp

[Ilya Enkovich]

Hi,

This patch initializes MPX paths in lto.exp to give check_effective_target_mpx 
a chance.  Is it OK for trunk?

Thanks,
Ilya
--
gcc/testsuite/

2015-07-14  Ilya Enkovich  <enkovich....@gmail.com>

        PR testsuite/66734
        * gcc.dg/lto/lto.exp: Initialize MPX.


diff --git a/gcc/testsuite/gcc.dg/lto/lto.exp b/gcc/testsuite/gcc.dg/lto/lto.exp
index c1d7c4c..7b919c2 100644
--- a/gcc/testsuite/gcc.dg/lto/lto.exp
+++ b/gcc/testsuite/gcc.dg/lto/lto.exp
@@ -42,6 +42,7 @@ if { ![check_effective_target_lto] } {
 
 gcc_init
 lto_init no-mathlib
+mpx_init
 
 # Define an identifier for use with this suite to avoid name conflicts
 # with other lto tests running at the same time.