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re PR tree-optimization/47391 (read from const volatile incorrectly eliminated)
authorJakub Jelinek <jakub@redhat.com>
Fri, 21 Jan 2011 12:57:52 +0000 (13:57 +0100)
committerJakub Jelinek <jakub@gcc.gnu.org>
Fri, 21 Jan 2011 12:57:52 +0000 (13:57 +0100)
commit3a2df83199a98c7ff455fedb3c3ea27b95fca7ce
treefb3ae648632a5de0ac53fcf258d6bd168323da84tree
parentd8debb1d8a53c120ed56ef3753afa3e9acaccdedcommit | diff
re PR tree-optimization/47391 (read from const volatile incorrectly eliminated)

PR tree-optimization/47391
* varpool.c (const_value_known_p): Return false if
decl is volatile.

* gcc.dg/pr47391.c: New test.

From-SVN: r169084
gcc/ChangeLog diff | blob | blame | history
gcc/testsuite/ChangeLog diff | blob | blame | history
gcc/testsuite/gcc.dg/pr47391.c [new file with mode: 0644] blob
gcc/varpool.c diff | blob | blame | history
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