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[Bug tree-optimization/88074] [7/8/9 Regression] g++ hangs on math expression
- From: "rguenth at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Mon, 19 Nov 2018 11:23:44 +0000
- Subject: [Bug tree-optimization/88074] [7/8/9 Regression] g++ hangs on math expression
- Auto-submitted: auto-generated
- References: <bug-88074-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88074
--- Comment #10 from Richard Biener <rguenth at gcc dot gnu.org> ---
OK, so it seems to be about large imagparts only and only if the realpart is
non-zero. Thus in GCC we could stop folding ctan for imagpart (z) > 1000 for
example. Like sin and cos tan is _usually_ invoked on normalized numbers(?).