Re: [PATCH] Fix PR79666

2017-02-22 Thread Eric Botcazou
> Eric - you added these improvements so you might want to double-check > effects on Ada code (and see if the above suggestion is worth > the effort). I think that all the relevant testcases are in the gnat.dg testsuite. -- Eric Botcazou

[PATCH] Fix PR79666

2017-02-22 Thread Richard Biener
I am testing the following patch to fix PR79666 - we may not create a symbolic range with expressions that may introduce (not already present) undefined overflow. With a new predicate like operand_not_min_p we can possibly improve this for symbolic ops with a useful range, but I'm not sure we'd e