c/3886: compiler seg faults with 02 optimization

[eeeg at rightarm dot org]

>Number:         3886
>Category:       c
>Synopsis:       compiler seg faults with 02 optimization
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          ice-on-legal-code
>Submitter-Id:   net
>Arrival-Date:   Mon Jul 30 15:06:00 PDT 2001
>Closed-Date:
>Last-Modified:
>Originator:     eeeg
>Release:        gcc version 3.0
>Organization:
>Environment:
Red Hat Linux 6.2, GeniuneIntel Pentium III (Coppermine)
>Description:
> /usr/gcc/bin/gcc -c -O2 /home/eeeg/ice_ice/test.c
/home/eeeg/ice_ice/test.c: In function `foo':
/home/eeeg/ice_ice/test.c:64: Internal error: Segmentation fault

Works with optimizations less than 2. 

Works fine all the time with gcc version egcs-2.91.66
>How-To-Repeat:
> /usr/gcc/bin/gcc -c -O2 /home/eeeg/ice_ice/test.c
>Fix:

>Release-Note:
>Audit-Trail:
>Unformatted:
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