public inbox for gcc-prs@sourceware.org
help / color / mirror / Atom feed
* c/8397: sh-coff-gcc-3.2
@ 2002-10-30 1:06 saito
0 siblings, 0 replies; only message in thread
From: saito @ 2002-10-30 1:06 UTC (permalink / raw)
To: gcc-gnats
>Number: 8397
>Category: c
>Synopsis: sh-coff-gcc-3.2
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: unassigned
>State: open
>Class: wrong-code
>Submitter-Id: net
>Arrival-Date: Wed Oct 30 01:06:01 PST 2002
>Closed-Date:
>Last-Modified:
>Originator: Hideo Saito
>Release: gcc-3.2
>Organization:
>Environment:
NetBSD/PowerPC-1.5.2 gcc-3.0.3
>Description:
If the size of the automatic variables becomes large when there is no flag specification of optimization, the code which accesses the variable which made a register declaration is wrong.
source code:
len -= size;
generated assembler code:
mov #64,r2
add r14,r2
mov #64,r2
add r14,r2
mov.l @(4,r2),r1
mov.l @(8,r2),r2
sub r2,r1
mov.l r1,@(4,r2)
bra L2
nop
>How-To-Repeat:
compile: sh-coff-gcc -S fff.c
fff.c: see below
fff(len, size)
register int len;
register int size;
{
char buf[58];
char *ps;
char *pe;
while (len < size) {
len -= size;
}
}
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted:
^ permalink raw reply [flat|nested] only message in thread
only message in thread, other threads:[~2002-10-30 9:06 UTC | newest]
Thread overview: (only message) (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2002-10-30 1:06 c/8397: sh-coff-gcc-3.2 saito
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).