From f794a072284bc2a9631f6144aa8bd9d264bc89a0 Mon Sep 17 00:00:00 2001
From: Tor Egge <Tor.Egge@online.no>
Date: Wed, 28 Apr 2021 15:56:06 +0200
Subject: Disable intel optimization on arm.

---
 vespalib/src/vespa/vespalib/hwaccelrated/CMakeLists.txt  | 11 ++++++++---
 vespalib/src/vespa/vespalib/hwaccelrated/iaccelrated.cpp |  8 ++++++++
 2 files changed, 16 insertions(+), 3 deletions(-)

(limited to 'vespalib')

diff --git a/vespalib/src/vespa/vespalib/hwaccelrated/CMakeLists.txt b/vespalib/src/vespa/vespalib/hwaccelrated/CMakeLists.txt
index ac9d8d76074..c5797cbd432 100644
--- a/vespalib/src/vespa/vespalib/hwaccelrated/CMakeLists.txt
+++ b/vespalib/src/vespa/vespalib/hwaccelrated/CMakeLists.txt
@@ -1,12 +1,17 @@
 # Copyright 2017 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
+
+if(CMAKE_SYSTEM_PROCESSOR STREQUAL "x86_64")
+  set(ACCEL_FILES "avx2.cpp" "avx512.cpp")
+else()
+  unset(ACCEL_FILES)
+endif()
+
 vespa_add_library(vespalib_vespalib_hwaccelrated OBJECT
     SOURCES
     iaccelrated.cpp
     generic.cpp
-    avx2.cpp
-    avx512.cpp
+    ${ACCEL_FILES}
     DEPENDS
 )
-set_source_files_properties(avx.cpp PROPERTIES COMPILE_FLAGS -march=sandybridge)
 set_source_files_properties(avx2.cpp PROPERTIES COMPILE_FLAGS -march=haswell)
 set_source_files_properties(avx512.cpp PROPERTIES COMPILE_FLAGS -march=skylake-avx512)
diff --git a/vespalib/src/vespa/vespalib/hwaccelrated/iaccelrated.cpp b/vespalib/src/vespa/vespalib/hwaccelrated/iaccelrated.cpp
index de917c5f065..674efe75c17 100644
--- a/vespalib/src/vespa/vespalib/hwaccelrated/iaccelrated.cpp
+++ b/vespalib/src/vespa/vespalib/hwaccelrated/iaccelrated.cpp
@@ -2,8 +2,10 @@
 
 #include "iaccelrated.h"
 #include "generic.h"
+#ifdef __x86_64__
 #include "avx2.h"
 #include "avx512.h"
+#endif
 #include <vespa/vespalib/util/memory.h>
 #include <cstdio>
 #include <vector>
@@ -26,6 +28,7 @@ public:
     IAccelrated::UP create() const override { return std::make_unique<GenericAccelrator>(); }
 };
 
+#ifdef __x86_64__
 class Avx2Factory :public Factory{
 public:
     IAccelrated::UP create() const override { return std::make_unique<Avx2Accelrator>(); }
@@ -35,6 +38,7 @@ class Avx512Factory :public Factory{
 public:
     IAccelrated::UP create() const override { return std::make_unique<Avx512Accelrator>(); }
 };
+#endif
 
 template<typename T>
 std::vector<T> createAndFill(size_t sz) {
@@ -255,6 +259,7 @@ private:
 Selector::Selector() :
     _factory()
 {
+#ifdef __x86_64__
     __builtin_cpu_init ();
     if (__builtin_cpu_supports("avx512f")) {
         _factory = std::make_unique<Avx512Factory>();
@@ -263,6 +268,9 @@ Selector::Selector() :
     } else {
         _factory = std::make_unique<GenericFactory>();
     }
+#else
+    _factory = std::make_unique<GenericFactory>();
+#endif
 }
 
 }
-- 
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