7071 – GCC 3.2 silently miscompiling code on x86

Bug 7071 - GCC 3.2 silently miscompiling code on x86

Summary: GCC 3.2 silently miscompiling code on x86

Status:	RESOLVED FIXED

Alias:	None

Product:	Gentoo Linux
Classification:	Unclassified
Component:	[OLD] GCC Porting (show other bugs)
Hardware:	x86 Linux

Importance:	High major (vote)
Assignee:	Matthew Kennedy (RETIRED)

URL:
Whiteboard:
Keywords:

Depends on:
Blocks:

Reported:	2002-08-26 14:02 UTC by Steven Wong
Modified:	2003-02-04 19:42 UTC (History)
CC List:	4 users (show)

See Also:
Package list:
Runtime testing required:	---

Attachments
Patch #1 (gcc-3.2.fix-copy.patch.gz,983 bytes, application/gzip) 2002-08-26 14:03 UTC, Steven Wong	Details
Patch #2 (gcc-3.2.fix-var-2.patch.gz,662 bytes, application/gzip) 2002-08-26 14:04 UTC, Steven Wong	Details
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Description Steven Wong 2002-08-26 14:02:21 UTC

There seems to be some (scary?) problems with GCC 3.2. The appropriate messages
on the mailing list are:

http://gcc.gnu.org/ml/gcc/2002-08/msg01371.html
http://gcc.gnu.org/ml/gcc-patches/2002-08/msg01170.html

The attatched patches can also be obtained from there.

Comment 1 Steven Wong 2002-08-26 14:03:50 UTC

Created attachment 3438 [details]
Patch #1

Comment 2 Steven Wong 2002-08-26 14:04:18 UTC

Created attachment 3439 [details]
Patch #2

Comment 3 Steven Wong 2002-08-26 14:08:50 UTC

This site explains more about the issue...

http://www.zipworld.com.au/~gschafer/lfs-tweaks.html

Comment 4 Martin Schlemmer (RETIRED) gentoo-dev

2002-08-27 13:40:47 UTC

We actually have a patch for this.  These however seems to be updated ones,
thanks :)

Comment 5 Martin Schlemmer (RETIRED) gentoo-dev

2002-08-27 16:06:07 UTC

OK, -r1 have the updated patches.

Comment 6 Mark 2002-08-27 16:32:07 UTC

How should one apply these patches?

Comment 7 Martin Schlemmer (RETIRED) gentoo-dev

2002-08-27 20:10:23 UTC

Just merge gcc-3.2-r1 ?