PR middle-end/61252

	* omp-low.c (handle_simd_reference): New function.
	(lower_rec_input_clauses): Use it.  Defer adding reference
	initialization even for reduction without placeholder if in simd,
	handle it properly later on.

	* testsuite/libgomp.c++/simd-9.C: New test.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@210679 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 52 insertions, 0 deletions

diff --git a/libgomp/testsuite/libgomp.c++/simd-9.C b/libgomp/testsuite/libgomp.c++/simd-9.C
new file mode 100644
index 00000000000..3c567b31c3e
--- /dev/null
+++ b/libgomp/testsuite/libgomp.c++/simd-9.C
@@ -0,0 +1,52 @@
+// { dg-do run }
+// { dg-options "-O2" }
+// { dg-additional-options "-msse2" { target sse2_runtime } }
+// { dg-additional-options "-mavx" { target avx_runtime } }
+
+extern "C" void abort ();
+int a[1024] __attribute__((aligned (32))) = { 1 };
+#pragma omp declare reduction (foo:int:omp_out += omp_in) \
+		    initializer (omp_priv = 0)
+
+__attribute__((noinline, noclone)) void
+foo (int &u, int &v)
+{
+  int i;
+  #pragma omp simd aligned(a : 32) reduction(foo:u) reduction(+:v)
+  for (i = 0; i < 1024; i++)
+    {
+      int x = a[i];
+      u += x;
+      v += x;
+    }
+}
+
+__attribute__((noinline, noclone)) void
+bar (int &u, int &v)
+{
+  int i;
+  #pragma omp simd aligned(a : 32) reduction(foo:u) reduction(+:v) \
+		   safelen(1)
+  for (i = 0; i < 1024; i++)
+    {
+      int x = a[i];
+      u += x;
+      v += x;
+    }
+}
+
+int
+main ()
+{
+  int i;
+  for (i = 0; i < 1024; i++)
+    a[i] = (i & 31) + (i / 128);
+  int u = 0, v = 0;
+  foo (u, v);
+  if (u != 19456 || v != 19456)
+    abort ();
+  u = 0; v = 0;
+  bar (u, v);
+  if (u != 19456 || v != 19456)
+    abort ();
+}