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| author | Marek Polacek <polacek@redhat.com> | 2018-03-06 21:11:46 +0000 |
|---|---|---|
| committer | Marek Polacek <mpolacek@gcc.gnu.org> | 2018-03-06 21:11:46 +0000 |
| commit | 1dc23505191d6ac79af9d403e7c543addd760ebd (patch) | |
| tree | 340e30c9dd00d90c29656bf58a339c40b6f6f53c /gcc/cp | |
| parent | 849bbdb99c5c8b1a97041a533c69bbaf8376c975 (diff) | |
| download | gcc-1dc23505191d6ac79af9d403e7c543addd760ebd.zip gcc-1dc23505191d6ac79af9d403e7c543addd760ebd.tar.gz gcc-1dc23505191d6ac79af9d403e7c543addd760ebd.tar.bz2 | |
re PR c++/84684 (inserting random code / flags produces wrong code)
PR c++/84684
* constexpr.c (cxx_bind_parameters_in_call): Unshare evaluated
arguments.
* g++.dg/cpp1z/constexpr-84684.C: New test.
From-SVN: r258303
Diffstat (limited to 'gcc/cp')
| -rw-r--r-- | gcc/cp/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/cp/constexpr.c | 2 |
2 files changed, 8 insertions, 0 deletions
diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog index bd2e104..ac7bd4b 100644 --- a/gcc/cp/ChangeLog +++ b/gcc/cp/ChangeLog @@ -1,3 +1,9 @@ +2018-03-06 Marek Polacek <polacek@redhat.com> + + PR c++/84684 + * constexpr.c (cxx_bind_parameters_in_call): Unshare evaluated + arguments. + 2018-03-06 Alexandre Oliva <aoliva@redhat.com> PR c++/84231 diff --git a/gcc/cp/constexpr.c b/gcc/cp/constexpr.c index 941562eb..bd53bfb 100644 --- a/gcc/cp/constexpr.c +++ b/gcc/cp/constexpr.c @@ -1313,6 +1313,8 @@ cxx_bind_parameters_in_call (const constexpr_ctx *ctx, tree t, if (!*non_constant_p) { + /* Don't share a CONSTRUCTOR that might be changed. */ + arg = unshare_constructor (arg); /* Make sure the binding has the same type as the parm. But only for constant args. */ if (TREE_CODE (type) != REFERENCE_TYPE) |