From c90928c8d6a1837696fbf5daf0016ed0e675a3b7 Mon Sep 17 00:00:00 2001
From: Paolo Carlini <paolo.carlini@oracle.com>
Date: Thu, 17 Nov 2016 09:59:07 +0000
Subject: [PATCH] re PR c++/68180 ([ICE]  at cp/constexpr.c:2768 in
 initializing __vector in a loop)

2016-11-17  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/68180
	* g++.dg/cpp1y/pr68180.C: New.

From-SVN: r242541
---
 gcc/testsuite/ChangeLog              |  5 +++++
 gcc/testsuite/g++.dg/cpp1y/pr68180.C | 15 +++++++++++++++
 2 files changed, 20 insertions(+)
 create mode 100644 gcc/testsuite/g++.dg/cpp1y/pr68180.C

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 7928a49186b..0a0a1b57e20 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2016-11-17  Paolo Carlini  <paolo.carlini@oracle.com>
+
+	PR c++/68180
+	* g++.dg/cpp1y/pr68180.C: New.
+
 2016-11-17  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>
 
 	PR tree-optimization/78319
diff --git a/gcc/testsuite/g++.dg/cpp1y/pr68180.C b/gcc/testsuite/g++.dg/cpp1y/pr68180.C
new file mode 100644
index 00000000000..acecff4fbe1
--- /dev/null
+++ b/gcc/testsuite/g++.dg/cpp1y/pr68180.C
@@ -0,0 +1,15 @@
+// PR c++/68180
+// { dg-do compile { target c++14 } }
+
+typedef float __attribute__( ( vector_size( 16 ) ) ) float32x4_t;
+constexpr float32x4_t fill(float x) {
+  float32x4_t v{0};
+  constexpr auto vs = sizeof(v)/sizeof(v[0]);
+  for (auto i=0U; i<vs; ++i) v[i]=i;
+  return v+x;
+}
+
+float32x4_t foo(float32x4_t x) {
+  constexpr float32x4_t v = fill(1.f); // { dg-error "not a constant" }
+  return x+v;
+}
-- 
2.30.2