From: Jakub Jelinek <jakub@redhat.com>
To: Uros Bizjak <ubizjak@gmail.com>
Cc: Vladimir Yakovlev <vbyakovl23@gmail.com>,
"H.J. Lu" <hjl.tools@gmail.com>,
Igor Zamyatin <izamyatin@gmail.com>,
gcc-patches@gcc.gnu.org
Subject: Re: [off-list] Re: [PATCH] Vzeroupper placement/47440
Date: Fri, 09 Nov 2012 12:36:00 -0000 [thread overview]
Message-ID: <20121109123617.GA1886@tucnak.redhat.com> (raw)
In-Reply-To: <CAFULd4bw0ma79MtGiKM_4Kt29O32rsME0mW05rnBephE3dxjiQ@mail.gmail.com>
On Fri, Nov 09, 2012 at 01:29:18PM +0100, Uros Bizjak wrote:
> On Fri, Nov 9, 2012 at 1:18 PM, Vladimir Yakovlev <vbyakovl23@gmail.com> wrote:
> >> These assert should tell you what is wrong with the control flow.
> >> Please look at control_flow_insn_p, which condition returns true.
> >
> > There is a note after call insn.
> >
> > (call_insn:TI 908 35558 50534 1681 (call (mem:QI (symbol_ref:DI
> > ("_gfortran_stop_string") [flags 0x41] <function_decl 0x7ffff7eb6200
> > _gfortran_stop_string>) [0 _gfortran_stop_string S1 A8])
> > (const_int 0 [0])) huygens.fppized.f90:190 616 {*call}
> > (expr_list:REG_DEAD (reg:DI 5 di)
> > (expr_list:REG_DEAD (reg:SI 4 si)
> > (expr_list:REG_NORETURN (const_int 0 [0])
> > (nil))))
> > (expr_list:REG_FRAME_RELATED_EXPR (use (reg:DI 5 di))
> > (expr_list:REG_BR_PRED (use (reg:SI 4 si))
> > (nil))))
> > (note 50534 908 909 1681 (expr_list:REG_DEP_TRUE (concat:DI (reg:DI 5 di)
> > (const_int 0 [0]))
> > (expr_list:REG_DEP_TRUE (concat:SI (reg:SI 4 si)
> > (const_int 0 [0]))
> > (nil))) NOTE_INSN_CALL_ARG_LOCATION)
> >
>
> Huh, this RTX is ignored:
NOTE_INSN_CALL_ARG_LOCATION is fine, even after a REG_NORETURN call.
It is just a way how to pass call argument details to dwarf2out.
If you have a pass after var-tracking, you need to skip over it.
Jakub
next prev parent reply other threads:[~2012-11-09 12:36 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-11-04 13:29 Uros Bizjak
2012-11-04 17:59 ` Uros Bizjak
[not found] ` <CAK1BsWpoD4AVB_4+J6snJgs4BF1Jbiw-RrifvZiiAm21qRURew@mail.gmail.com>
[not found] ` <CAFULd4Y5zDhMH3h34Lt0O5xNG+xibDJih7q2_ctef7nqSNJcOQ@mail.gmail.com>
2012-11-04 20:28 ` Vladimir Yakovlev
[not found] ` <CAFULd4a8pgcTu-yv=8sm3=KyYxz0SAJW+7+uUmUu9k_YwXxsew@mail.gmail.com>
[not found] ` <CAK1BsWrZyWL8WrczwbTm5djhkqZjbBy0p10wb9-_=HJFA0Z8iA@mail.gmail.com>
[not found] ` <CAFULd4aP_JMxTnSymMe373PJ3WFcR2Bax3BtksBtf-xVQeH=0Q@mail.gmail.com>
[not found] ` <CAK1BsWrsVu4TRW50RW0X7G4RSguSAjhqFPe-tkeXKaurr=sX1A@mail.gmail.com>
[not found] ` <CAFULd4b0y6GGZsn1s4-RXc1mAvZGrhGd4YQBhfLgeMWmv2eXPA@mail.gmail.com>
[not found] ` <CAK1BsWoL5hsfZprf-a8zxG+Bhe9SwGFwqxHxOw9UX+bbsFD5oQ@mail.gmail.com>
[not found] ` <CAFULd4bJXT-nnAk6HCn2C=+jhfiUD-fAe3LK8AYd9jgqQQHvKQ@mail.gmail.com>
[not found] ` <CAFULd4bdxuKbYYS7TcyRfjNukLvJ0d5pOD7zJGAyKEQLPq7z2Q@mail.gmail.com>
[not found] ` <CAK1BsWpL69eRHTD8dzVOm9xtOqtjcr6z3B2tvb_VikWPzKT0Dw@mail.gmail.com>
2012-11-09 10:55 ` Fwd: [off-list] " Vladimir Yakovlev
[not found] ` <CAFULd4YaVLCYF=Huw_kDozTBTcZnGUAy7xOcV+VEweOWZ5Cigg@mail.gmail.com>
[not found] ` <CAFULd4YyRVY4BzD+csZAqCCmB7v3YEwAaOpNW9QsMXEbCkFw+Q@mail.gmail.com>
2012-11-09 12:18 ` Vladimir Yakovlev
2012-11-09 12:29 ` Uros Bizjak
2012-11-09 12:36 ` Jakub Jelinek [this message]
2012-11-09 12:48 ` Uros Bizjak
2012-11-09 13:28 ` Uros Bizjak
2012-11-16 7:50 ` Uros Bizjak
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