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(parent: 44db22f) | patch
PR c++/89336 - multiple stores in constexpr stmt.
authorJason Merrill <jason@redhat.com>
Tue, 19 Feb 2019 01:01:50 +0000 (20:01 -0500)
committerJason Merrill <jason@gcc.gnu.org>
Tue, 19 Feb 2019 01:01:50 +0000 (20:01 -0500)
commite8b3c1bc3ba22dcf59b9c743f11d4cb2bc5d7792
tree9c3cdaa34468fdc8816877ce803ffca053288debtree
parent44db22fc662edfc4e665f4c523fd75514dfb3be7commit | diff
PR c++/89336 - multiple stores in constexpr stmt.

If we evaluate the RHS in the context of the LHS, that evaluation might
change the LHS in ways that mess with being able to store the value later.
So for assignment or scalar values, evaluate the RHS first.

* constexpr.c (cxx_eval_store_expression): Preevaluate scalar or
assigned value.

From-SVN: r269003
gcc/cp/ChangeLog diff | blob | history
gcc/cp/constexpr.c diff | blob | history
gcc/testsuite/g++.dg/cpp1y/constexpr-89336-1.C [new file with mode: 0644] blob
gcc/testsuite/g++.dg/cpp1y/constexpr-89336-2.C [new file with mode: 0644] blob