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cselib: Keep track of further subvalue relations
authorStefan Schulze Frielinghaus <stefansf@linux.ibm.com>
Wed, 28 Sep 2022 15:27:11 +0000 (17:27 +0200)
committerStefan Schulze Frielinghaus <stefansf@linux.ibm.com>
Wed, 28 Sep 2022 15:27:11 +0000 (17:27 +0200)
commitd0b00b63a39108311f2e6f9cbe9072579f57df7c
tree9a919bf5de8444b5e14d1d4e738faa4dc0062312tree
parent5e9c4ed903c39f82f28362d9411d4dbc491264eccommit | diff
cselib: Keep track of further subvalue relations

Whenever a new cselib value is created check whether a smaller value
exists which is contained in the bigger one.  If so add a subreg
relation to locs of the smaller one.

gcc/ChangeLog:

* cselib.cc (new_cselib_val): Keep track of further subvalue
relations.
gcc/cselib.cc diff | blob | blame | history
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