Re-enable most IR optimisations.  It's only really redundant-Put
elimination which is causing a problem right now and so is disabled;
tree-building is also potentially dodgy.


git-svn-id: svn://svn.valgrind.org/vex/trunk@394 8f6e269a-dfd6-0310-a8e1-e2731360e62c
2 files changed