On Mon, Feb 21, 2011 at 10:26 PM, Christian Grössler <ch...@groessler.org> wrote: > On 19.02.11 23:01, Richard Guenther wrote: >> >> On Sat, Feb 19, 2011 at 10:53 PM, Christian Grössler >> <ch...@groessler.org> wrote: >>> >>> The failures come from the assembler which complains about the out of >>> range >>> shift counts. >>> >>> Should I disable them or is there any reason unknown to me that these >>> tests >>> make sense? >> >> You need to make sure that the tests only invoke undefined behavior >> at runtime, thus emit valid assembly from your target description. > > Thanks. So I can simply mask the shift count to be in the supported range, > or even generate a nops for the instructions, correct?
Yes. Other targets simply truncate the shift count (which is usually what CPUs do when the shift count is a register). Richard. > chris >
