tree a92074441c62a755de9dd2deaa04d4ca0eeee65e
parent edc115ec12829b3daea95ecad4a49f72e1de5666
author Jim Stichnoth <stichnot@chromium.org> 1416009226 -0800
committer Jim Stichnoth <stichnot@chromium.org> 1416009226 -0800

Subzero: Use the linear-scan register allocator for Om1 as well.

This removes the need for Om1's postLower() code which did its own ad-hoc register allocation.  And it actually speeds up Om1 translation significantly.

This mode of register allocation only allocates for infinite-weight Variables, while respecting live ranges of pre-colored Variables.

BUG= none
R=jvoung@chromium.org

Review URL: https://codereview.chromium.org/733643005