Check zero/sign extended hard registers.
commitd1e32c4a411c4a216b7d80e56da2b8a73197505e
authorH.J. Lu <hongjiu.lu@intel.com>
Mon, 20 Jun 2011 14:53:48 +0000 (20 14:53 +0000)
committerH.J. Lu <hjl@gcc.gnu.org>
Mon, 20 Jun 2011 14:53:48 +0000 (20 07:53 -0700)
tree50bddf0089eeec9e64b85925a09e2f1a635b73ca
parentb028af11640a2a31c267b73cc40a9b162632a7d0
Check zero/sign extended hard registers.

2011-06-20  H.J. Lu  <hongjiu.lu@intel.com>

PR middle-end/47725
* combine.c (cant_combine_insn_p): Check zero/sign extended
hard registers.

From-SVN: r175218
gcc/ChangeLog
gcc/combine.c