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[patch] PR18544 fix





vect_analyze_data_refs should fail if it can't find the relevant memtag of
a dataref.

tested on powerpc-apple-darwin and i686-pc-linux-gnu

ok for mainline?

thanks,
dorit

Changelog:

        * tree-vectorizer.c (vect_analyze_data_refs): Return false if
memtag
        not found.

Patch:

(See attached file: patch.pr18544)

Attachment: patch.pr18544
Description: Binary data


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