Bug 53025 – asm constraints error in 2.96-95 but not other gcc's

Bug 53025 - asm constraints error in 2.96-95 but not other gcc's

Summary:	asm constraints error in 2.96-95 but not other gcc's

Status:	CLOSED CURRENTRELEASE

Aliases:	None

Product:	Red Hat Linux
Classification:	Retired
Component:	gcc (Show other bugs)
Sub Component:
Version:	7.3
Hardware:	i386 Linux

Priority	medium Severity medium
Target Milestone:	---
Target Release:	---
Assigned To:	Jakub Jelinek
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	Show dependency tree / graph

Reported:	2001-09-01 20:57 EDT by Alan Cox
Modified:	2007-04-18 12:36 EDT (History)
CC List:	0 users

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Fixed In Version:
Doc Type:	Bug Fix
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Last Closed:	2003-11-11 18:55:26 EST
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Attachments	(Terms of Use)
gcc -E output (435.73 KB, text/plain) 2001-09-01 21:07 EDT, Alan Cox	no flags	Details
Add an attachment (proposed patch, testcase, etc.)

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Description Alan Cox 2001-09-01 20:57:08 EDT

Code that builds with other gcc versions is failing in one specific case.
When building opengfs with gcc 2.96-* I get asm constraint errors. Now this
may well be the asm that is wrong but this is the kernel down_read asm that
works elsewhere and folks say is ok..

I've attached the gcc -E file so you can play with it, with egcs its fine,
with 2.95 its apparently fine, with 2.96 -O0 its ok -O2 its not

Thoughts ? (and sorry in advance if its the kernel code thats wrong)

Alan

Comment 1 Alan Cox 2001-09-01 21:07:16 EDT

Created attachment 30574 [details]
gcc -E output

Comment 2 Jakub Jelinek 2001-09-03 12:47:16 EDT

See http://gcc.gnu.org/ml/gcc-patches/2001-09/msg00049.html
for a fix. I'll wait until it gets reviewed before putting it in though.

Comment 3 Jakub Jelinek 2001-09-06 12:04:12 EDT

Should be fixed in gcc-2.96-98.

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