Steve Ellcey wrote:
The psuedo for %r8 does have REG_POINTER set and the psuedo for %r19
does not. I first see REG_POINTER set for ivtmp___1536 (the psuedo for
%r8) in flow.c.138r.loop2_invariant. This seems interesting because
Peter's patch, that fixes this problem without undoing Andrews patch,
includes a change to loop-invariant.c, though that change should be
preserving REG_POINTER's during optimization not preventing them.
OK. So what is ivtmp__1536 -- is it a pointer or an index? Can you
show me the gimple code which declares and uses ivtmp_1536?
Hmmm, fails for 4.3... Hmmm, does 4.3 have POINTER_PLUS_EXPR?
(search tree.def for POINTER_PLUS_EXPR).
Jeff
