[Bug tree-optimization/58088] [4.8/4.9 Regression] ICE in gcc.c
ktkachov at gcc dot gnu.org
gcc-bugzilla@gcc.gnu.org
Tue Sep 17 13:30:00 GMT 2013
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58088
--- Comment #10 from ktkachov at gcc dot gnu.org ---
Author: ktkachov
Date: Tue Sep 17 13:29:41 2013
New Revision: 202652
URL: http://gcc.gnu.org/viewcvs?rev=202652&root=gcc&view=rev
Log:
[gcc/]
2013-09-17 Kyrylo Tkachov <kyrylo.tkachov@arm.com>
PR tree-optimization/58088
* fold-const.c (mask_with_trailing_zeros): New function.
(fold_binary_loc): Make sure we don't recurse infinitely
when the X in (X & C1) | C2 is a tree of the form (Y * K1) & K2.
Use mask_with_trailing_zeros where appropriate.
[gcc/testsuite]
2013-09-17 Kyrylo Tkachov <kyrylo.tkachov@arm.com>
PR tree-optimization/58088
* gcc.c-torture/compile/pr58088.c: New test.
Added:
trunk/gcc/testsuite/gcc.c-torture/compile/pr58088.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/fold-const.c
trunk/gcc/testsuite/ChangeLog
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