BUG: Adding macro HAVE_ATTRIBUTE_TARGET_@ISA@_WITH_INTRINSICS

1) use __builtin_cpu_supports("avx512f") only for gcc ver >= 5

2) Introduced two new macro's:
HAVE_ATTRIBUTE_TARGET_@ISA@_WITH_INTRINSICS for ensuring compiler can
compile functions that use intrinsics and are compiled with avx2/avx512f
attributes

2 files changed, 26 insertions, 0 deletions

diff --git a/numpy/distutils/command/autodist.py b/numpy/distutils/command/autodist.py
index d5e78963c..03fe0c64c 100644
--- a/numpy/distutils/command/autodist.py
+++ b/numpy/distutils/command/autodist.py
@@ -78,6 +78,26 @@ main()
 """ % (attribute, name)
     return cmd.try_compile(body, None, None) != 0
 
+def check_gcc_function_attribute_with_intrinsics(cmd, attribute, name, code,
+                                                include):
+    """Return True if the given function attribute is supported with
+    intrinsics."""
+    cmd._check_compiler()
+    body = """
+#include<%s>
+int %s %s(void)
+{
+    %s;
+    return 0;
+}
+
+int
+main()
+{
+    return 0;
+}
+""" % (include, attribute, name, code)
+    return cmd.try_compile(body, None, None) != 0
 def check_gcc_variable_attribute(cmd, attribute):
     """Return True if the given variable attribute is supported."""
     cmd._check_compiler()
diff --git a/numpy/distutils/command/config.py b/numpy/distutils/command/config.py
index d9b1e8488..74d6900dc 100644
--- a/numpy/distutils/command/config.py
+++ b/numpy/distutils/command/config.py
@@ -18,6 +18,7 @@ import distutils
 from numpy.distutils.exec_command import filepath_from_subprocess_output
 from numpy.distutils.mingw32ccompiler import generate_manifest
 from numpy.distutils.command.autodist import (check_gcc_function_attribute,
+                                              check_gcc_function_attribute_with_intrinsics,
                                               check_gcc_variable_attribute,
                                               check_inline,
                                               check_restrict,
@@ -424,6 +425,11 @@ int main (void)
     def check_gcc_function_attribute(self, attribute, name):
         return check_gcc_function_attribute(self, attribute, name)
 
+    def check_gcc_function_attribute_with_intrinsics(self, attribute, name,
+                                                     code, include):
+        return check_gcc_function_attribute_with_intrinsics(self, attribute,
+                                                            name, code, include)
+
     def check_gcc_variable_attribute(self, attribute):
         return check_gcc_variable_attribute(self, attribute)