On 03/09/2012 11:20 AM, Aurelien Buhrig wrote: > Hi, > > It seems there is an issue around subreg:HI of PSI hardware register, > which occurs either during expand or reload (GCC 4.6.1). > > For my big endian target, > (subreg:HI (reg:PSI A0_REGNO) 0) is not representable but > (subreg:HI (reg:PSI A0_REGNO) 2) is (reg:HI A0_REGNO).
> - Is it correct that gcc emits such a subreg pattern in Pmode=PSI during > expand ? Or should it be in ptr_mode=SImode (in this case, both > (subreg:HI (reg:SI) 0/2) are representable)? This, I think. I have a port with a rather similar situation, and I'm betting you also have a failure in gcc.c-torture/execute/20040625-1.c. I don't want to promise anything but I may have something for you next week-ish. Bernd
