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re PR tree-optimization/48694 (possible memory hog bug)
authorRichard Biener <rguenth@gcc.gnu.org>
Tue, 26 Apr 2011 10:12:14 +0000 (10:12 +0000)
committerRichard Biener <rguenth@gcc.gnu.org>
Tue, 26 Apr 2011 10:12:14 +0000 (10:12 +0000)
commit961562d8d8720d823f3904050c16a2c65c9a5599
tree5ae45dbeef3467012f6cb5c4e2396e9be874cdf0tree | snapshot
parentce3ba3827f2215553367dd9946b9e3cfe3befc92commit | diff
re PR tree-optimization/48694 (possible memory hog bug)

2011-04-26  Richard Guenther  <rguenther@suse.de>

PR middle-end/48694
* tree.h (OEP_CONSTANT_ADDRESS_OF): New operand_equal_flag.
* fold-const.c (operand_equal_p): For TREE_CONSTANT ADDR_EXPRs
compare the operands with OEP_CONSTANT_ADDRESS_OF.  Treat
trees with TREE_SIDE_EFFECTS equal when OEP_CONSTANT_ADDRESS_OF
is set.

* gcc.dg/torture/pr48694-1.c: New testcase.
* gcc.dg/torture/pr48694-2.c: Likewise.

From-SVN: r172957
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