From beabe3bdf47306d0940ddf2ddf52ada6903a0875 Mon Sep 17 00:00:00 2001
From: Moritz Pflanzer <moritz.pflanzer@arm.com>
Date: Thu, 31 Aug 2017 14:56:32 +0100
Subject: COMPMID-481: Add AArch64 GEMM

Change-Id: I34f94f99cb05f0eabafee13c5e623ee779b72360
Reviewed-on: http://mpd-gerrit.cambridge.arm.com/83741
Tested-by: Kaizen <jeremy.johnson+kaizengerrit@arm.com>
Reviewed-by: Anthony Barbier <anthony.barbier@arm.com>
Reviewed-by: Pablo Tello <pablo.tello@arm.com>
---
 support/ToolchainSupport.h | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

(limited to 'support')

diff --git a/support/ToolchainSupport.h b/support/ToolchainSupport.h
index 87e9bd2bc8..b9d9103652 100644
--- a/support/ToolchainSupport.h
+++ b/support/ToolchainSupport.h
@@ -268,6 +268,23 @@ inline std::string to_string(bool value)
     str << std::boolalpha << value;
     return str.str();
 }
+
+// std::align is missing in GCC 4.9
+// https://gcc.gnu.org/bugzilla/show_bug.cgi?id=57350
+inline void *align(std::size_t alignment, std::size_t size, void *&ptr, std::size_t &space)
+{
+    std::uintptr_t pn      = reinterpret_cast<std::uintptr_t>(ptr);
+    std::uintptr_t aligned = (pn + alignment - 1) & -alignment;
+    std::size_t    padding = aligned - pn;
+    if(space < size + padding)
+    {
+        return nullptr;
+    }
+
+    space -= padding;
+
+    return ptr = reinterpret_cast<void *>(aligned);
+}
 } // namespace cpp11
 
 namespace cpp14
-- 
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