From 00ed83e3803ea52c50a746a93a239622aac5a635 Mon Sep 17 00:00:00 2001
From: Jason Volk <jason@zemos.net>
Date: Thu, 12 Nov 2020 20:59:00 -0800
Subject: [PATCH] ircd::simd: Add missing support::sse; add alignment
 constexpr.

---
 include/ircd/simd/support.h | 9 +++++++++
 include/ircd/simd/traits.h  | 8 ++++++++
 2 files changed, 17 insertions(+)

diff --git a/include/ircd/simd/support.h b/include/ircd/simd/support.h
index 2937a9d1c..a7fdacbef 100644
--- a/include/ircd/simd/support.h
+++ b/include/ircd/simd/support.h
@@ -18,6 +18,15 @@
 
 namespace ircd::simd::support
 {
+	constexpr bool sse
+	{
+		#if defined(__SSE__)
+			true
+		#else
+			false
+		#endif
+	};
+
 	constexpr bool sse2
 	{
 		#if defined(__SSE2__)
diff --git a/include/ircd/simd/traits.h b/include/ircd/simd/traits.h
index 8596afef6..22dfe1240 100644
--- a/include/ircd/simd/traits.h
+++ b/include/ircd/simd/traits.h
@@ -38,6 +38,14 @@ namespace ircd::simd
 	extern const u128x1  u128x1_lane_id;
 	extern const u256x1  u256x1_lane_id;
 	extern const u512x1  u512x1_lane_id;
+
+	constexpr auto alignment
+	{
+		support::avx512f?  64:
+		support::avx?      32:
+		support::sse?      16:
+		                    8
+	};
 }
 
 /// Get number of lanes for vector type (the number after the x in the