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backport: re PR rtl-optimization/48141 (DSE compile time hog)
authorJakub Jelinek <jakub@redhat.com>
Thu, 7 Apr 2011 21:27:02 +0000 (23:27 +0200)
committerJakub Jelinek <jakub@gcc.gnu.org>
Thu, 7 Apr 2011 21:27:02 +0000 (23:27 +0200)
commitc404d187c8a0c0cb4d316fa9d966cc614bb0a8c8
tree9d6a20525ea53b0141723dd6c9fcf26424bbd583tree
parent438d2301bab3821bbe08e6bd2b328c8ec9a924f4commit | diff
backport: re PR rtl-optimization/48141 (DSE compile time hog)

Backported from mainline
2011-03-17  Jakub Jelinek  <jakub@redhat.com>

PR rtl-optimization/48141
* dse.c (record_store): If no positions are needed in an insn
that cannot be deleted, at least unchain it from active_local_stores.

* gcc.dg/pr48141.c: New test.

From-SVN: r172132
gcc/ChangeLog diff | blob | blame | history
gcc/dse.c diff | blob | blame | history
gcc/testsuite/ChangeLog diff | blob | blame | history
gcc/testsuite/gcc.dg/pr48141.c [new file with mode: 0644] blob
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