From 7fe797daf8dc2f84702ac957d3b7747159eb0164 Mon Sep 17 00:00:00 2001
From: Lanny91 <andrew.lawson@gmail.com>
Date: Thu, 23 Feb 2017 16:49:44 +0000
Subject: [PATCH] SIMD vector length sanity checks

---
 lib/simd/Grid_vector_types.h | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/lib/simd/Grid_vector_types.h b/lib/simd/Grid_vector_types.h
index 8a6ab2e7..3f8a6f3a 100644
--- a/lib/simd/Grid_vector_types.h
+++ b/lib/simd/Grid_vector_types.h
@@ -747,6 +747,15 @@ typedef Grid_simd<std::complex<float>, SIMD_Ftype> vComplexF;
 typedef Grid_simd<std::complex<double>, SIMD_Dtype> vComplexD;
 typedef Grid_simd<Integer, SIMD_Itype> vInteger;
 
+// Check our vector types are of an appropriate size.
+#if defined QPX
+static_assert(2*sizeof(SIMD_Ftype) == sizeof(SIMD_Dtype), "SIMD vector lengths incorrect");
+static_assert(2*sizeof(SIMD_Ftype) == sizeof(SIMD_Itype), "SIMD vector lengths incorrect");
+#else
+static_assert(sizeof(SIMD_Ftype) == sizeof(SIMD_Dtype), "SIMD vector lengths incorrect");
+static_assert(sizeof(SIMD_Ftype) == sizeof(SIMD_Itype), "SIMD vector lengths incorrect");
+#endif
+
 /////////////////////////////////////////
 // Some traits to recognise the types
 /////////////////////////////////////////