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util: fix a warning when building against clang7 headers

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Header xmmintrin.h conditionally includes emmintrin.h that defines
_MM_DENORMALS_ZERO_MASK, add ifndef to fix this warning.

Signed-off-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
This commit is contained in:
Tapani Pälli 2019-02-26 12:51:07 +02:00
parent d1af8115f8
commit b9acfef337
1 changed files with 2 additions and 0 deletions
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2
src/util/u_math.c
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@ -35,8 +35,10 @@
#include <xmmintrin.h>
/* This is defined in pmmintrin.h, but it can only be included when -msse3 is
* used, so just define it here to avoid further. */
#ifndef _MM_DENORMALS_ZERO_MASK
#define _MM_DENORMALS_ZERO_MASK 0x0040
#endif
#endif
/** 2^x, for x in [-1.0, 1.0) */