------- Comment #18 from paolo dot bonzini at lu dot unisi dot ch 2006-10-03 05:20 ------- Subject: Re: [4.2 Regression] Performace problem with indexed load/stores on powerpc
> * rtlanal.c (swap_commutative_operands_p): Preference a REG_POINTER > over a non REG_POINTER. > * tree-ssa-address.c (gen_addr_rtx): Force a REG_POINTER to be > the first operand of a PLUS. This is more gentle indeed. Be careful however as functions calling commutative_operand_precedence directly may have a problem with that. Can you try making an address illegitimate if it is non-REG_POINTER + REG_POINTER? Or set up splitters to do the transformation just before reload? Paolo -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28690
