Bug 25082

Summary:	gcc 2.96-69 miscompiles crystal space 0.17.2
Product:	[Retired] Red Hat Linux	Reporter:	jfm2
Component:	gcc	Assignee:	Jakub Jelinek <jakub>
Status:	CLOSED NOTABUG	QA Contact:	David Lawrence <dkl>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	7.0
Target Milestone:	---
Target Release:	---
Hardware:	i386
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2001-01-28 00:10:27 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description jfm2 2001-01-27 10:15:28 UTC

I have gcc 2.96-69, glibc 2.2-9,  kernel 2.4.0 headers, binutils is vanilla
from RH7.

When I compile crystalspace 0.17.2 I get the following message:

g++ -c -o out/LINUX/INTEL/optimize/scan16.o
plugins/video/renderer/software/scan16.cpp -Wall -Wunused -W -mcpu=i686
-fno-exceptions -fno-rtti -O6 -fomit-frame-pointer -ffast-math   -I.
-I./apps -I./include -I./libs -I./plugins -I./support
/tmp/ccwQQ3xK.s: Assembler messages:
/tmp/ccwQQ3xK.s:16315: Error: local label "6" (instance number 1 of a fb
label) is not defined
make[1]: *** [out/LINUX/INTEL/optimize/scan16.o] Erreur 1

Comment 1 Jakub Jelinek 2001-01-27 23:28:07 UTC

Just guessing, doesn't it use inline asm which has | characters in it?
| cannot be used in inline asm on certain arches (and since the new
ia32 backend on ia32 as well) because it separates different asm
alternatives (on ia32 it is AT&T and Intel syntax).
If this is not the case, please attach here preprocessed source.

Comment 2 jfm2 2001-01-28 00:10:24 UTC

Yes it has inline asm with several '|' in it

Comment 3 Jakub Jelinek 2001-01-29 09:14:29 UTC

So change all `|' to something like `or' or whatever, this really will not
work with any further gcc version.