From 5b38e86dc118ed3afece54cb6b01bef0c7a1a4df Mon Sep 17 00:00:00 2001 From: Julian Taylor Date: Tue, 11 Oct 2016 19:05:57 +0200 Subject: MAINT: make sure __builtin_cpu_supports is not optimized away OSX 10.11 ships a clang that uses it but does not implement the necesary library function closes gh-8130 --- numpy/core/setup_common.py | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'numpy/core') diff --git a/numpy/core/setup_common.py b/numpy/core/setup_common.py index 9202faecf..a97b02645 100644 --- a/numpy/core/setup_common.py +++ b/numpy/core/setup_common.py @@ -125,7 +125,9 @@ OPTIONAL_INTRINSICS = [("__builtin_isnan", '5.'), ("__builtin_bswap64", '5u'), ("__builtin_expect", '5, 0'), ("__builtin_mul_overflow", '5, 5, (int*)5'), - ("__builtin_cpu_supports", '"sse"'), + # broken on OSX 10.11, make sure its not optimized away + ("volatile int r = __builtin_cpu_supports", '"sse"', + "stdio.h", "__BUILTIN_CPU_SUPPORTS"), ("_mm_load_ps", '(float*)0', "xmmintrin.h"), # SSE ("_mm_prefetch", '(float*)0, _MM_HINT_NTA', "xmmintrin.h"), # SSE -- cgit v1.2.1