Make iropt.c compile cleanly with icc in paranoid mode.  Along the way,
find and fix what looked like a bug in the folding rule for Iop_32to1.


git-svn-id: svn://svn.valgrind.org/vex/trunk@856 8f6e269a-dfd6-0310-a8e1-e2731360e62c
3 files changed