https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86397
--- Comment #4 from Alexandre Oliva <aoliva at gcc dot gnu.org> --- Author: aoliva Date: Thu Dec 6 23:18:30 2018 New Revision: 266874 URL: https://gcc.gnu.org/viewcvs?rev=266874&root=gcc&view=rev Log: [PR86397] resolve nondependent noexcept specs early in C++1[14] build_noexcept_spec refrained from resolving nondependent noexcept expressions when they were not part of the function types (C++ 11 and 14). This caused problems during mangling: canonical_eh_spec, when called on the template function type, would find an unresolved but not explicitly deferred expression, and nothrow_spec_p would reject it. We could relax the mangling logic to skip canonical_eh_spec, but since -Wnoexcept-type warns when mangling function names that change as noexcept specs become part of types and of mangling in C++17, and the test at mangling time may give incorrect results if the spec is not resolved, we might as well keep things simple and resolve nondependent noexcept specs sooner rather than later. This is what this patch does. for gcc/cp/ChangeLog PR c++/86397 * except.c (build_noexcept_spec): Resolve nondependent expressions. for gcc/testsuite/ChangeLog PR c++/86397 * g++.dg/cpp0x/pr86397-1.C: New. * g++.dg/cpp0x/pr86397-2.C: New. Added: trunk/gcc/testsuite/g++.dg/cpp0x/pr86397-1.C trunk/gcc/testsuite/g++.dg/cpp0x/pr86397-2.C Modified: trunk/gcc/cp/ChangeLog trunk/gcc/cp/except.c trunk/gcc/testsuite/ChangeLog