https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82081
--- Comment #10 from Jason Merrill <jason at gcc dot gnu.org> --- Author: jason Date: Fri Jul 19 08:52:41 2019 New Revision: 273594 URL: https://gcc.gnu.org/viewcvs?rev=273594&root=gcc&view=rev Log: PR c++/82081 - tail call optimization breaks noexcept If a noexcept function calls a function that might throw, doing the tail call optimization means that an exception thrown in the called function will propagate out, breaking the noexcept specification. So we need to prevent the optimization in that case. * tree-tailcall.c (find_tail_calls): Don't turn a call from a nothrow function to a might-throw function into a tail call. Added: branches/gcc-9-branch/gcc/testsuite/g++.dg/tree-ssa/tail-call-1.C Modified: branches/gcc-9-branch/gcc/ChangeLog branches/gcc-9-branch/gcc/tree-tailcall.c
