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re PR tree-optimization/69117 (wrong code at -O1 -fstrict-aliasing)
authorRichard Biener <rguenther@suse.de>
Fri, 15 Jan 2016 08:16:08 +0000 (08:16 +0000)
committerRichard Biener <rguenth@gcc.gnu.org>
Fri, 15 Jan 2016 08:16:08 +0000 (08:16 +0000)
commite93c66bc4509a69092e422047c83fd1ffe9dcbb0
tree33f5020fb384b207315cae72de2656e7575955d8tree
parent54e32f9d2fac5e8147c1e266229e838f7b122233commit | diff
re PR tree-optimization/69117 (wrong code at -O1 -fstrict-aliasing)

2016-01-15  Richard Biener  <rguenther@suse.de>

PR tree-optimization/69117
* tree-ssa-sccvn.h (struct vn_ssa_aux): Add info member.
* tree-ssa-sccvn.c (set_ssa_val_to): Save and adjust SSA name info
of the leader conservatively.
(free_scc_vn): Restore original SSA name infos.

* gcc.dg/torture/pr69117.c: New testcase.

From-SVN: r232401
gcc/ChangeLog diff | blob | history
gcc/testsuite/ChangeLog diff | blob | history
gcc/testsuite/gcc.dg/torture/pr69117.c [new file with mode: 0644] blob
gcc/tree-ssa-sccvn.c diff | blob | history
gcc/tree-ssa-sccvn.h diff | blob | history