> Well, even when sign-extended there is a constant you can't negate > without overflow. I would start digging for a testcase with > such case - but as said, testcases involving TYPE_IS_SIZETYPE are > very hard to generate for me.
We run thousands of Ada tests every night on many platforms and never detected a problem here, so finding a testcase with the unpatched compiler is probably very hard - if there is really something to be found, which I doubt. > Well, but I'd expect you can have a set of Ada types, a function that > returns just its size and some scan-tree-dumps that check those sizes > are folded to a constant. Or to just N statements. We probably should, but we don't have them (yet). Like for the vast majority of the transformations made by the folder I guess, so... > If you insist I can revert the patch and apply it together with the > sign-extension change. Yes, IMHO it should be part of the final patch. -- Eric Botcazou
