x86 and amd64 back ends: when generating transfers back to the
dispatcher, generate a jump either to the unassisted (GSP unchanged,
the common case) or assisted (GSP changed, request some action before
continuing) dispatcher. This removes two instructions per dispatch
for the common case. Changes for all other targets are interface-only
changes due to change in type of the emit_XXInstr functions.
git-svn-id: svn://svn.valgrind.org/vex/trunk@2155 8f6e269a-dfd6-0310-a8e1-e2731360e62c
12 files changed
