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Re: [PATCH][modulo-sched] Fix generation of reg-moves (was: Fix generation of prolog and epilog)

From: Revital1 Eres <ERES at il dot ibm dot com>
To: Ayal Zaks <ZAKS at il dot ibm dot com>
Cc: "Andrey Belevantsev" <abel at ispras dot ru>, Alexander Monakov <amonakov at ispras dot ru>, gcc-patches at gcc dot gnu dot org
Date: Tue, 18 Dec 2007 13:49:14 +0200
Subject: Re: [PATCH][modulo-sched] Fix generation of reg-moves (was: Fix generation of prolog and epilog)

Hello,

Following our off-line discussion regarding the implementation of this
patch; I re-submit it with the following change: the reg-moves of the
kernel are inserted right before the notes which precede the insn they
relates to.  This will also prevent the problematic case were redundant
reg-moves are generated while creating the prolog/epilog as reported
previously.

I am now re-testing the patch on powerpc64-linux, x86_64-linux and SPU.
OK for mainline once testing completes?

Thanks,
Revital

2007-12-17  Alexander Monakov  <amonakov@ispras.ru>
            Revital Eres  <eres@il.ibm.com>

        * modulo-sched.c (generate_reg_moves): Insert the reg-moves
        right before the notes which precedes the insn, if they exists.
        (loop_canon_p): Add dump info.
        (sms_schedule): Likewise.

testsuite:

        * gcc.dg/sms-5.c: New testcase.


(See attached file: sms-5.c.txt)(See attached file:
patch_fix_regmoves_17.txt)

Attachment: sms-5.c.txt
Description: Text document

Attachment: patch_fix_regmoves_17.txt
Description: Text document

References:
- [PATCH][modulo-sched] Fix generation of prolog and epilog
  - From: Revital1 Eres

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