Ian Lance Taylor <i...@google.com> writes: > Andreas Schwab <sch...@linux-m68k.org> writes: > >> Ian Lance Taylor <i...@google.com> writes: >> >>> But it also looks like the pattern should use a match_scratch. >> >> It is also used as input in operand 2. > > Sorry, I missed that.
That appears not to be an issue actually, there is already one use of match_scratch together with a matching constraint in *cmpdi_internal. But then, using match_scratch instead of match_operand doesn't really fix the bug either (it only helps a simplified test case, but not the original one). > This still seems like a bug in regrename to me, but it also seems like > an unusual case, so it is less surprising that it hasn't been seen > before. Since regrename is only auto-enabled with -funroll-loops it is probably not much tested anyway. Andreas. -- Andreas Schwab, sch...@linux-m68k.org GPG Key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5 "And now for something completely different."
