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Date: Mon, 17 Oct 2005 11:29:00 -0000
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References: <bug-24406-10567@http.gcc.gnu.org/bugzilla/>
Subject: [Bug fortran/24406] EQUIVALENCE broken in 32-bit code with optimization -O2
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From: "pinskia at gcc dot gnu dot org" <gcc-bugzilla@gcc.gnu.org>
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------- Comment #1 from pinskia at gcc dot gnu dot org  2005-10-17 11:29 -------
Hmm:
        li r2,0
        lfd f13,56(r1)
        addis r27,r31,ha16(L__gfortran_filename$non_lazy_ptr-"L00000000001$pb")
        stw r0,56(r1)
        addis r28,r31,ha16(L__gfortran_line$non_lazy_ptr-"L00000000001$pb")
        fcmpu cr7,f13,f0
        stw r2,60(r1)

We are loading from 56(r1) before storing to it.

We have an aliasing issue.

The union looks correct.


-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |alias, wrong-code


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24406