sparcv9 bootstrap errors

[Brad Lucier]

> sparcv9 bootstrap has failed on the 3.1 branch since at least February
> 28 with comparison errors; today it fails on the main line (updated about
> 10:15 EST) with
> 
> Bootstrap comparison failure!
> expr.o differs
> 
> So now neither branch nor mainline bootstraps.  The mainline bootstrapped
> and passed make check on
> 
> LAST_UPDATED: Mon Mar  4 01:31:53 UTC 2002

Today's mainline bootstrapped on sparcv9, and I reported the regression test
results.

The 3.1 branch still does not bootstrap with

env CC='cc -xarch=v9 -xildoff' ../configure sparcv9-sun-solaris2.8
...
Bootstrap comparison failure!
fold-const.o differs

Brad