Andreas Schwab <sch...@linux-m68k.org> writes: > 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).
It doesn't actually change anything (I was confused because 4.7/4.8 no longer generates the overlapping output for the simplified testcase). 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."
