toolchain/gcc/patches/9.1.0/975-g++-ICE-with-generic-lambda.patch

   1 From 7a1606168f60622f73a7dd90778e2a148a2c520c Mon Sep 17 00:00:00 2001
   2 From: mpolacek <mpolacek@138bc75d-0d04-0410-961f-82ee72b054a4>
   3 Date: Mon, 6 May 2019 17:08:08 +0000
   4 Subject: [PATCH]        PR c++/90265 - ICE with generic lambda.         * pt.c
   5  (tsubst_copy_and_build): Use a dedicated variable for the last
   6  element in the vector.
   7
   8         * g++.dg/cpp1y/lambda-generic-90265.C: New test.
   9
  10
  11 git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-9-branch@270919 138bc75d-0d04-0410-961f-82ee72b054a4
  12 ---
  13  gcc/cp/ChangeLog                                  | 6 ++++++
  14  gcc/cp/pt.c                                       | 3 ++-
  15  gcc/testsuite/ChangeLog                           | 5 +++++
  16  gcc/testsuite/g++.dg/cpp1y/lambda-generic-90265.C | 4 ++++
  17  4 files changed, 17 insertions(+), 1 deletion(-)
  18  create mode 100644 gcc/testsuite/g++.dg/cpp1y/lambda-generic-90265.C
  19
  20 --- a/gcc/cp/ChangeLog
  21 +++ b/gcc/cp/ChangeLog
  22 @@ -1,3 +1,9 @@
  23 +2019-05-06  Marek Polacek  <polacek@redhat.com>
  24 +
  25 +       PR c++/90265 - ICE with generic lambda.
  26 +       * pt.c (tsubst_copy_and_build): Use a dedicated variable for the last
  27 +       element in the vector.
  28 +
  29  2019-05-03  Release Manager
  30
  31         * GCC 9.1.0 released.
  32 --- a/gcc/cp/pt.c
  33 +++ b/gcc/cp/pt.c
  34 @@ -18881,7 +18881,8 @@ tsubst_copy_and_build (tree t,
  35             if (thisarg)
  36               {
  37                 /* Shift the other args over to make room.  */
  38 -               vec_safe_push (call_args, (*call_args)[nargs-1]);
  39 +               tree last = (*call_args)[nargs - 1];
  40 +               vec_safe_push (call_args, last);
  41                 for (int i = nargs-1; i > 0; --i)
  42                   (*call_args)[i] = (*call_args)[i-1];
  43                 (*call_args)[0] = thisarg;