From 023747a301510a03628696f59014208275a0a026 Mon Sep 17 00:00:00 2001
From: Tor Egge <Tor.Egge@online.no>
Date: Thu, 15 Feb 2024 22:02:58 +0100
Subject: Specify cpu architecture when compiling with clang on x86_64
 platform.

---
 default_build_settings.cmake | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'default_build_settings.cmake')

diff --git a/default_build_settings.cmake b/default_build_settings.cmake
index 41ab347f8a0..63ac2c306cb 100644
--- a/default_build_settings.cmake
+++ b/default_build_settings.cmake
@@ -130,6 +130,8 @@ function(vespa_use_default_build_settings)
     message("-- CMAKE_SYSTEM_PROCESSOR = ${CMAKE_SYSTEM_PROCESSOR}")
     if(CMAKE_SYSTEM_PROCESSOR STREQUAL "x86_64")
       if(APPLE AND (("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang") OR ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "AppleClang")))
+      elseif(CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
+        set(DEFAULT_VESPA_CPU_ARCH_FLAGS "-march=haswell -mtune=skylake-avx512")
       elseif(CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
         if(CMAKE_CXX_COMPILER_VERSION VERSION_GREATER_EQUAL 12.0 AND NOT CMAKE_CXX_COMPILER_VERSION VERSION_GREATER_EQUAL 12.3)
           # Temporary workaround for https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108599
-- 
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