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LRA Vs match_scratch
- From: Claudiu Zissulescu <claziss at gmail dot com>
- To: gcc at gcc dot gnu dot org
- Date: Tue, 4 Sep 2018 11:11:44 +0200
- Subject: LRA Vs match_scratch
I am trying to get LRA fully working for ARC, but I've got an issue.
Whenever, LRA analyses an instruction having (clobber
(match_scratch:SI 3 "=X, ...)) in its pattern I hit the assert in
lra-constraints.c:4101, and it seems it has to do with the scratch's
Do I miss something? Is there any limitation between LRA and scratch
operands having in their alternative 'X' constraint?
Any help appreciated,