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re PR debug/52001 (Huge compile-time regression with var-tracking)
authorAlexandre Oliva <aoliva@redhat.com>
Sat, 25 Feb 2012 12:09:41 +0000 (12:09 +0000)
committerAlexandre Oliva <aoliva@gcc.gnu.org>
Sat, 25 Feb 2012 12:09:41 +0000 (12:09 +0000)
commita5628378163028b24ef0e4472f98becc5aa96731
tree7bde4a2ac693ba3d3312bb5937c7160118e45921tree
parent0e22465644731d86e2d317bf5fbfab2a76eccc9ccommit | diff
re PR debug/52001 (Huge compile-time regression with var-tracking)

PR debug/52001
* alias.c (refs_newer_value_cb, refs_newer_value_p): New.
(get_addr): Walk canonical value's locs.  Avoid returning VALUEs
and locs that reference values newer than the non-canonical value
at hand.  Return the canonical value as a worst case.
(memrefs_conflict_p): Walk canonical value's locs.

From-SVN: r184572
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