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re PR rtl-optimization/67443 (DSE removes required store instruction)
authorRichard Biener <rguenther@suse.de>
Mon, 26 Oct 2015 15:24:45 +0000 (15:24 +0000)
committerRichard Biener <rguenth@gcc.gnu.org>
Mon, 26 Oct 2015 15:24:45 +0000 (15:24 +0000)
commite802444145fa89d9f82a2e5302a324340d0622c9
tree314271c235223775e02c6e174ae248fb8969e6cbtree
parentfec40d06dadf9cd5bf4adb0ee9a47f267e6c7693commit | diff
re PR rtl-optimization/67443 (DSE removes required store instruction)

2015-10-26  Richard Biener  <rguenther@suse.de>
Dominik Vogt  <vogt@linux.vnet.ibm.com>

PR middle-end/67443
* alias.c (ao_ref_from_mem): Remove promoted subreg handling.
Properly prune ref->ref for accesses outside of ref.

* gcc.target/s390/pr67443.c: New testcase.

Co-Authored-By: Dominik Vogt <vogt@linux.vnet.ibm.com>
From-SVN: r229372
gcc/ChangeLog diff | blob | history
gcc/alias.c diff | blob | history
gcc/testsuite/ChangeLog diff | blob | history
gcc/testsuite/gcc.target/s390/pr67443.c [new file with mode: 0644] blob