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re PR tree-optimization/45052 (volatile ignored)

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2010-07-26  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/45052
	* ipa-pure-const.c (check_stmt): Check volatileness.

From-SVN: r162528
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Richard Guenther 2010-07-26 09:26:43 +00:00 committed by Richard Biener
parent d4e075f2bd
commit 4e89a3faf8
2 changed files with 12 additions and 0 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2010-07-26 Richard Guenther <rguenther@suse.de>
PR tree-optimization/45052
* ipa-pure-const.c (check_stmt): Check volatileness.
2010-07-25 Eric Botcazou <ebotcazou@adacore.com> 2010-07-25 Eric Botcazou <ebotcazou@adacore.com>
PR target/44707 PR target/44707

7
gcc/ipa-pure-const.c
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@ -651,6 +651,13 @@ check_stmt (gimple_stmt_iterator *gsip, funct_state local, bool ipa)
print_gimple_stmt (dump_file, stmt, 0, 0); print_gimple_stmt (dump_file, stmt, 0, 0);
} }
if (gimple_has_volatile_ops (stmt))
{
local->pure_const_state = IPA_NEITHER;
if (dump_file)
fprintf (dump_file, " Volatile stmt is not const/pure\n");
}
/* Look for loads and stores. */ /* Look for loads and stores. */
walk_stmt_load_store_ops (stmt, local, walk_stmt_load_store_ops (stmt, local,
ipa ? check_ipa_load : check_load, ipa ? check_ipa_load : check_load,