tree 27be49142968b27d8d615f03c3390f9b0d5a649c
parent 35ec373ddacec2a632e03e095ab728cdd1d228df
author Jan Voung <jvoung@chromium.org> 1405976729 -0700
committer Jan Voung <jvoung@chromium.org> 1405976729 -0700

Use lowerCast instead of inlined _movzx, to get legalization, for memset.

Otherwise, there can be a movzx reg, 0, which is illegal,
when the memset value is constant 0.

BUG= https://code.google.com/p/nativeclient/issues/detail?id=3882
R=stichnot@chromium.org

Review URL: https://codereview.chromium.org/402253002