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[patch, fortran] PR fortran/45151 : NULL changed_syms assert regressions.

From: Mikael Morin <mikael dot morin at sfr dot fr>
To: "fortran at gcc dot gnu dot org" <fortran at gcc dot gnu dot org>, gcc-patches <gcc-patches at gcc dot gnu dot org>
Date: Mon, 02 Aug 2010 15:32:12 +0200
Subject: [patch, fortran] PR fortran/45151 : NULL changed_syms assert regressions.

Hello,

as promised, here is the patch for the regressions introduced by my change at revision 162776.

Nothing special, modified symbols have to be committed in non-parsing mode. And one needs to call gfc_undo_symbols (maybe through reject_statement) in case one emits an error.

Thanks to Janus for taking part to the regression hunt.

Regression testing in progress on x86_64-unknown-freebsd8.0, and patch was reported regression-free by Dominique in the PR.

OK for trunk/4.5 (I plan to backport the other PR42051 fixes too) ?

Mikael

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