From: Richard Guenther Date: Mon, 26 Jul 2010 09:26:43 +0000 (+0000) Subject: re PR tree-optimization/45052 (volatile ignored) X-Git-Tag: releases/gcc-4.6.0~5430 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4e89a3faf8c34372ad9952dde29038b8954f3309;p=thirdparty%2Fgcc.git re PR tree-optimization/45052 (volatile ignored) 2010-07-26 Richard Guenther PR tree-optimization/45052 * ipa-pure-const.c (check_stmt): Check volatileness. From-SVN: r162528 --- diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 8fc9c977e734..c9d4ea0f72aa 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2010-07-26 Richard Guenther + + PR tree-optimization/45052 + * ipa-pure-const.c (check_stmt): Check volatileness. + 2010-07-25 Eric Botcazou PR target/44707 diff --git a/gcc/ipa-pure-const.c b/gcc/ipa-pure-const.c index 1ff15bf22e60..0e07e448295a 100644 --- a/gcc/ipa-pure-const.c +++ b/gcc/ipa-pure-const.c @@ -651,6 +651,13 @@ check_stmt (gimple_stmt_iterator *gsip, funct_state local, bool ipa) 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. */ walk_stmt_load_store_ops (stmt, local, ipa ? check_ipa_load : check_load,