8000 improve configure checks for broken systems by juliantaylor · Pull Request #8141 · numpy/numpy · GitHub
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improve configure checks for broken systems #8141

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Merged
merged 2 commits into from
Oct 13, 2016
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improve configure checks for broken systems #8141

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b5471e0
MAINT: check that linker can handle AVX
juliantaylor Oct 11, 2016
5b38e86
MAINT: make sure __builtin_cpu_supports is not optimized away
juliantaylor Oct 11, 2016
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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
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@juliantaylor
juliantaylor committed Oct 11, 2016
commit 5b38e86dc118ed3afece54cb6b01bef0c7a1a4df
4 changes: 3 additions & 1 deletion numpy/core/setup_common.py
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Expand Up @@ -125,7 +125,9 @@ def check_api_version(apiversion, codegen_dir):
("__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
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