c/8068: GCC 2.96 and 3.x release crach (cc1) with the attached code

c/8068: GCC 2.96 and 3.x release crach (cc1) with the attached code

[Laurent.Deniau]

>Number:         8068
>Category:       c
>Synopsis:       GCC 2.96 and 3.x release crach (cc1) with the attached code
>Confidential:   no
>Severity:       critical
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          ice-on-legal-code
>Submitter-Id:   net
>Arrival-Date:   Fri Sep 27 00:46:02 PDT 2002
>Closed-Date:
>Last-Modified:
>Originator:     Laurent Deniau
>Release:        GCC 2.96 and 3.x release
>Organization:
>Environment:
Various i386 linux platform using GCC 2.91, 2.95.2, 2.96,
3.0.4, 3.1 and 3.2.
>Description:
The code attached crashes gcc and g++ release >= 2.96 with
any optimization option (including -O0).
If we change the addition ('+') by an xor ('^') into the
macro STATICHASHSTR32_ then all the releases compile
it with success and provide the correct result. The problem
is not comming from cpp since -E gives the right expanded
output and as noticed into the gcc message, the problem is
comming from cc1. We haven't found any bug report about
this problem.
>How-To-Repeat:
try to compile the attached code... Warning, this will use
block/slow down your system during 10-30 seconds since all
the memory will be used.
>Fix:
no idea...
>Release-Note:
>Audit-Trail:
>Unformatted:
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