From: Jordan Justen <jordan.l.justen@intel.com>
Date: Thu, 30 Mar 2023 06:30:44 +0000 (-0700)
Subject: meson: Check for the __builtin_ia32_clflushopt function
X-Git-Tag: upstream/23.3.3~2400
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=b68582b1c5b3b226a9ad88ac18a3fb21a81226e9;p=platform%2Fupstream%2Fmesa.git

meson: Check for the __builtin_ia32_clflushopt function

Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/22379>
---

diff --git a/meson.build b/meson.build
index 0aa07eb..8aa133d 100644
--- a/meson.build
+++ b/meson.build
@@ -1170,6 +1170,16 @@ if host_machine.cpu_family().startswith('x86')
   endif
 endif
 
+# Detect __builtin_ia32_clflushopt support
+if cc.has_function('__builtin_ia32_clflushopt', args : '-mclflushopt')
+  pre_args += '-DHAVE___BUILTIN_IA32_CLFLUSHOPT'
+  clflushopt_args = ['-mclflushopt']
+  with_clflushopt = true
+else
+  clflushopt_args = []
+  with_clflushopt = false
+endif
+
 # Check for GCC style atomics
 dep_atomic = null_dep