Changes to support Memcheck:

* Pass host word type to instrumentation functions
* irdefs.c: add beginnings of proper sanity checking for flatness
* refine guest-state-layout stuff
* new primop Iop_1Sto32



git-svn-id: svn://svn.valgrind.org/vex/trunk@478 8f6e269a-dfd6-0310-a8e1-e2731360e62c
5 files changed