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From: Glen Nakamura <glen@imodulo.com>
To: nobody@gcc.gnu.org
Cc: gcc-prs@gcc.gnu.org,
Subject: Re: optimization/6703: optimized memset fills incorrect number of bytes for void** parameter
Date: Mon, 20 May 2002 02:56:00 -0000 [thread overview]
Message-ID: <20020520095604.10414.qmail@sources.redhat.com> (raw)
The following reply was made to PR optimization/6703; it has been noted by GNATS.
From: Glen Nakamura <glen@imodulo.com>
To: gcc-gnats@gcc.gnu.org, gcc-prs@gcc.gnu.org,
dbaron@fas.harvard.edu, gcc-bugs@gcc.gnu.org, nobody@gcc.gnu.org
Cc:
Subject: Re: optimization/6703: optimized memset fills incorrect number of
bytes for void** parameter
Date: Sun, 19 May 2002 23:48:23 -1000
http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=6703
This patch extracted from cvs diff -r 1.386 -r 1.387 seems to fix the problem:
ChangeLog
===================================================================
Tue Apr 23 14:24:25 CEST 2002 Jan Hubicka <jh@suse.cz>
* i386.c (ix86_expand_clrstr): Fix typo.
Index: i386.c
===================================================================
RCS file: /cvsroot/gcc/gcc/gcc/config/i386/i386.c,v
retrieving revision 1.368.2.9
diff -c -3 -p -r1.368.2.9 i386.c
*** i386.c 23 Apr 2002 08:11:22 -0000 1.368.2.9
--- i386.c 20 May 2002 09:30:28 -0000
*************** ix86_expand_clrstr (src, count_exp, alig
*** 9420,9426 ****
gen_rtx_SUBREG (SImode, zeroreg, 0)));
if (TARGET_64BIT && (align <= 4 || count == 0))
{
! rtx label = ix86_expand_aligntest (destreg, 2);
emit_insn (gen_strsetsi (destreg,
gen_rtx_SUBREG (SImode, zeroreg, 0)));
emit_label (label);
--- 9420,9426 ----
gen_rtx_SUBREG (SImode, zeroreg, 0)));
if (TARGET_64BIT && (align <= 4 || count == 0))
{
! rtx label = ix86_expand_aligntest (countreg, 2);
emit_insn (gen_strsetsi (destreg,
gen_rtx_SUBREG (SImode, zeroreg, 0)));
emit_label (label);
*************** ix86_expand_clrstr (src, count_exp, alig
*** 9431,9437 ****
gen_rtx_SUBREG (HImode, zeroreg, 0)));
if (align <= 2 || count == 0)
{
! rtx label = ix86_expand_aligntest (destreg, 2);
emit_insn (gen_strsethi (destreg,
gen_rtx_SUBREG (HImode, zeroreg, 0)));
emit_label (label);
--- 9431,9437 ----
gen_rtx_SUBREG (HImode, zeroreg, 0)));
if (align <= 2 || count == 0)
{
! rtx label = ix86_expand_aligntest (countreg, 2);
emit_insn (gen_strsethi (destreg,
gen_rtx_SUBREG (HImode, zeroreg, 0)));
emit_label (label);
*************** ix86_expand_clrstr (src, count_exp, alig
*** 9442,9448 ****
gen_rtx_SUBREG (QImode, zeroreg, 0)));
if (align <= 1 || count == 0)
{
! rtx label = ix86_expand_aligntest (destreg, 1);
emit_insn (gen_strsetqi (destreg,
gen_rtx_SUBREG (QImode, zeroreg, 0)));
emit_label (label);
--- 9442,9448 ----
gen_rtx_SUBREG (QImode, zeroreg, 0)));
if (align <= 1 || count == 0)
{
! rtx label = ix86_expand_aligntest (countreg, 1);
emit_insn (gen_strsetqi (destreg,
gen_rtx_SUBREG (QImode, zeroreg, 0)));
emit_label (label);
next reply other threads:[~2002-05-20 9:56 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-05-20 2:56 Glen Nakamura [this message]
-- strict thread matches above, loose matches on Subject: below --
2002-05-24 10:16 sayle
2002-05-20 3:06 Glen Nakamura
2002-05-17 10:56 dbaron
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