[committed] Fix bswapdi2 pattern in pa.md

[John David Anglin]

This fixes PR target/70319.  We need to us a scratch register to avoid clobbering operand 1.

Tested on hppa64-hp-hpux11.11.  Committed to trunk and gcc-5.

Dave
--
John David Anglin	dave.anglin@bell.net


-------------- next part --------------
An embedded and charset-unspecified text was scrubbed...
Name: pa.md.d.txt
URL: <http://gcc.gnu.org/pipermail/gcc-patches/attachments/20160325/9cc2cb9e/attachment.txt>