From d397e3948ec945c8c3b4dc695e1b0b5820365a39 Mon Sep 17 00:00:00 2001
From: Jakub Jelinek <jakub@gcc.gnu.org>
Date: Tue, 5 Feb 2019 23:28:25 +0100
Subject: [PATCH] re PR c++/89187 (ICE in initialize_argument_information, at
 calls.c:2023)

	PR c++/89187
	* optimize.c (maybe_thunk_body): Clear TREE_ADDRESSABLE on
	PARM_DECLs of the thunk.
	* lambda.c (maybe_add_lambda_conv_op): Likewise.

	* g++.dg/opt/pr89187.C: New test.

From-SVN: r268564
---
 gcc/cp/ChangeLog                   |  7 +++++++
 gcc/cp/lambda.c                    |  3 +++
 gcc/cp/optimize.c                  |  2 ++
 gcc/testsuite/ChangeLog            |  7 ++++++-
 gcc/testsuite/g++.dg/opt/pr89187.C | 23 +++++++++++++++++++++++
 5 files changed, 41 insertions(+), 1 deletion(-)
 create mode 100644 gcc/testsuite/g++.dg/opt/pr89187.C

diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog
index 8ebbc12..660d746 100644
--- a/gcc/cp/ChangeLog
+++ b/gcc/cp/ChangeLog
@@ -1,3 +1,10 @@
+2019-02-05  Jakub Jelinek  <jakub@redhat.com>
+
+	PR c++/89187
+	* optimize.c (maybe_thunk_body): Clear TREE_ADDRESSABLE on
+	PARM_DECLs of the thunk.
+	* lambda.c (maybe_add_lambda_conv_op): Likewise.
+
 2019-02-05  Marek Polacek  <polacek@redhat.com>
 
 	PR c++/89158 - by-value capture of constexpr variable broken.
diff --git a/gcc/cp/lambda.c b/gcc/cp/lambda.c
index c31b06e..2290fe0 100644
--- a/gcc/cp/lambda.c
+++ b/gcc/cp/lambda.c
@@ -1130,6 +1130,9 @@ maybe_add_lambda_conv_op (tree type)
       {
 	tree new_node = copy_node (src);
 
+	/* Clear TREE_ADDRESSABLE on thunk arguments.  */
+	TREE_ADDRESSABLE (new_node) = 0;
+
 	if (!fn_args)
 	  fn_args = tgt = new_node;
 	else
diff --git a/gcc/cp/optimize.c b/gcc/cp/optimize.c
index 7b6edfc..aace7de 100644
--- a/gcc/cp/optimize.c
+++ b/gcc/cp/optimize.c
@@ -417,6 +417,8 @@ maybe_thunk_body (tree fn, bool force)
 		  gcc_assert (clone_parm);
 		  DECL_ABSTRACT_ORIGIN (clone_parm) = NULL;
 		  args[parmno] = clone_parm;
+		  /* Clear TREE_ADDRESSABLE on thunk arguments.  */
+		  TREE_ADDRESSABLE (clone_parm) = 0;
 		  clone_parm = TREE_CHAIN (clone_parm);
 		}
 	      if (fn_parm_typelist)
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 6167416..ac70c72 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,4 +1,9 @@
-2019-02-05  Andrea Corallo <andrea.corallo@arm.com>
+2019-02-05  Jakub Jelinek  <jakub@redhat.com>
+
+	PR c++/89187
+	* g++.dg/opt/pr89187.C: New test.
+
+2019-02-05  Andrea Corallo  <andrea.corallo@arm.com>
 
 	* jit.dg/add-driver-options-testlib.c: Add support file for
 	test-add-driver-options.c testcase.
diff --git a/gcc/testsuite/g++.dg/opt/pr89187.C b/gcc/testsuite/g++.dg/opt/pr89187.C
new file mode 100644
index 0000000..3e24a8f
--- /dev/null
+++ b/gcc/testsuite/g++.dg/opt/pr89187.C
@@ -0,0 +1,23 @@
+// PR c++/89187
+// { dg-do compile { target c++11 } }
+// { dg-options "-Os -fno-tree-ccp -fno-tree-sra -fno-inline" }
+
+template <typename T, int N> struct A {
+  typedef T __attribute__((vector_size (N))) type;
+};
+template <typename T, int N> using B = typename A<T, N>::type;
+template <typename T> using C = B<T, 4>;
+struct D {
+  D (C<int> x) : d{x[3]} {}
+  D foo () { return d; }
+  C<int> d;
+};
+extern D d;
+struct { D bar () { return d; } } l;
+struct E { void baz () const; };
+
+void
+E::baz () const
+{
+  l.bar ().foo ();
+}
-- 
2.7.4