PR/17687 fold sincos at the tree level

[Paolo Bonzini]

This patch was submitted in September and queued in the 4.1 metabug.

Boostrapped/tested C/C++ only on powerpc-darwin and i686-pc-linux-gnu; 
ok for mainline?

Paolo
-------------- next part --------------
An embedded and charset-unspecified text was scrubbed...
Name: builtin-sincos.patch
URL: <http://gcc.gnu.org/pipermail/gcc-patches/attachments/20050316/2fbadd49/attachment.ksh>