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re PR tree-optimization/91091 ([missed optimization] Missing optimization in unaliase...
authorRichard Biener <rguenther@suse.de>
Fri, 5 Jul 2019 12:48:42 +0000 (12:48 +0000)
committerRichard Biener <rguenth@gcc.gnu.org>
Fri, 5 Jul 2019 12:48:42 +0000 (12:48 +0000)
commit75fad0a98919da8212be4efc479d098499f4f1c3
tree3daeebb2ad8afb9e01b95c8297cb83c91f22ea97tree
parent1d776353135272b1fcb7453ae9c8bd4fafd9bd07commit | diff
re PR tree-optimization/91091 ([missed optimization] Missing optimization in unaliased pointers)

2019-07-05  Richard Biener  <rguenther@suse.de>

PR tree-optimization/91091
* tree-ssa-sccvn.c (vn_reference_lookup_3): Overlap of
accesses can happen with -fno-strict-aliasing.

* gcc.dg/tree-ssa/pr91091-1.c: New testcase.
* gcc.dg/tree-ssa/ssa-fre-61.c: Adjust.

From-SVN: r273134
gcc/ChangeLog diff | blob | history
gcc/testsuite/ChangeLog diff | blob | history
gcc/testsuite/gcc.dg/tree-ssa/pr91091-1.c [new file with mode: 0644] blob
gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-61.c diff | blob | history
gcc/tree-ssa-sccvn.c diff | blob | history