Bug 29506

Summary: gcc (cc1) crashes compiling this code (from GNU Hurd)
Product: [Retired] Red Hat Linux Reporter: Roland McGrath <roland>
Component: gccAssignee: Jakub Jelinek <jakub>
Status: CLOSED RAWHIDE QA Contact: David Lawrence <dkl>
Severity: medium Docs Contact:
Priority: medium    
Version: 7.0   
Target Milestone: ---   
Target Release: ---   
Hardware: i386   
OS: Linux   
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Fixed In Version: Doc Type: Bug Fix
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Last Closed: 2001-02-26 11:17:30 UTC Type: ---
Regression: --- Mount Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description Flags
here is the cpp output file new-fifo.i that produces the cc1 crash none

Description Roland McGrath 2001-02-26 03:37:06 UTC 
From Bugzilla Helper:
User-Agent: Mozilla/4.76 [en] (X11; U; Linux 2.2.16-22smp i686)


This is with the gcc-2.96-69 rpm.
I have about half a dozen source files that produce crashes in cc1.
gcc-2.95.2 is able to compile all this same code fine.

Reproducible: Always
Steps to Reproduce:
/usr/lib/gcc-lib/i386-redhat-linux/2.96/cc1 new-fifo.i -quiet -dumpbase
new-fifo.c -g -O -O3 -Wall -version -o new-fifo.s


Actual Results:  GNU C version 2.96 20000731 (Red Hat Linux 7.0)
(i386-redhat-linux) compiled by GNU C version 2.96 20000731 (Red Hat Linux
7.0).
../../../hurd/trans/new-fifo.c: In function `trivfs_goaway':
../../../hurd/trans/new-fifo.c:478: Internal error: Segmentation fault.
Please submit a full bug report.
See <URL:http://bugzilla.redhat.com/bugzilla/> for instructions.


Expected Results:  Should have compiled it.
Comment 1 Roland McGrath 2001-02-26 03:38:19 UTC 
Created attachment 11080 [details]
here is the cpp output file new-fifo.i that produces the cc1 crash
Comment 2 Jakub Jelinek 2001-02-26 11:17:22 UTC 
Fixed in gcc 3.0 by:
Fri Aug 18 14:23:18 2000  Richard Kenner  <kenner.nyu.edu>

        * function.c (fixup_var_refs_1, case MEM): Update CODE after
        updating X.
I've just verified this patch fixes this, so this patch will appear in gcc-2.96-77.