tree 5904ebe163de5ee4ed7a2be4fce0d69f046f8e72
parent b819665aac0c747bd2337eb72f91f4b1de11f688
author Jim Stichnoth <stichnot@chromium.org> 1453225942 -0800
committer Jim Stichnoth <stichnot@chromium.org> 1453225942 -0800

Subzero: Improve the usability of UnimplementedError during lowering.

Provides a variant of the UnimplementedError macro specifically for use in incomplete target instruction lowering.  When --skip-unimplemented is specified, the UnimplementedLoweringError macro adds FakeUse and FakeDef instructions in order to maintain consistency in liveness analysis.

BUG= none
R=kschimpf@google.com

Review URL: https://codereview.chromium.org/1591893002 .