Merge branch 'master' into fix-issue-10244

1 files changed, 12 insertions, 0 deletions

diff --git a/numpy/distutils/command/build.py b/numpy/distutils/command/build.py
index 60ba4c917..a4fda537d 100644
--- a/numpy/distutils/command/build.py
+++ b/numpy/distutils/command/build.py
@@ -22,6 +22,8 @@ class build(old_build):
          "specify a list of dispatched CPU optimizations"),
         ('disable-optimization', None,
          "disable CPU optimized code(dispatch,simd,fast...)"),
+        ('simd-test=', None,
+         "specify a list of CPU optimizations to be tested against NumPy SIMD interface"),
         ]
 
     help_options = old_build.help_options + [
@@ -36,6 +38,16 @@ class build(old_build):
         self.cpu_baseline = "min"
         self.cpu_dispatch = "max -xop -fma4" # drop AMD legacy features by default
         self.disable_optimization = False
+        """
+        the '_simd' module is a very large. Adding more dispatched features
+        will increase binary size and compile time. By default we minimize
+        the targeted features to those most commonly used by the NumPy SIMD interface(NPYV),
+        NOTE: any specified features will be ignored if they're:
+            - part of the baseline(--cpu-baseline)
+            - not part of dispatch-able features(--cpu-dispatch)
+            - not supported by compiler or platform
+        """
+        self.simd_test = "BASELINE SSE2 SSE42 XOP FMA4 (FMA3 AVX2) AVX512F AVX512_SKX VSX VSX2 VSX3 NEON ASIMD"
 
     def finalize_options(self):
         build_scripts = self.build_scripts