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[Bug c++/82781] [6/7 Regression] Vector extension operators return wrong result in constexpr
- From: "jakub at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Fri, 15 Dec 2017 21:50:32 +0000
- Subject: [Bug c++/82781] [6/7 Regression] Vector extension operators return wrong result in constexpr
- Auto-submitted: auto-generated
- References: <bug-82781-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82781
--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Fri Dec 15 21:50:00 2017
New Revision: 255707
URL: https://gcc.gnu.org/viewcvs?rev=255707&root=gcc&view=rev
Log:
Backported from mainline
2017-11-20 Jakub Jelinek <jakub@redhat.com>
PR c++/82781
* constexpr.c (cxx_eval_vector_conditional_expression): New function.
(cxx_eval_constant_expression) <case VEC_COND_EXPR>: Use it instead
of cxx_eval_conditional_expression.
* g++.dg/ext/constexpr-pr82781.C: New test.
Added:
branches/gcc-7-branch/gcc/testsuite/g++.dg/ext/constexpr-pr82781.C
Modified:
branches/gcc-7-branch/gcc/cp/ChangeLog
branches/gcc-7-branch/gcc/cp/constexpr.c
branches/gcc-7-branch/gcc/testsuite/ChangeLog