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Finally work around enough of MSVC preprocessor dumbness so that it actually detects SSE2

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This commit is contained in:
Benoit Jacob 2008-12-15 21:20:40 +00:00
parent 1ad751b991
commit 0a220721d1
1 changed files with 11 additions and 1 deletions
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12
Eigen/Core
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@ -13,7 +13,17 @@
#ifndef EIGEN_DONT_VECTORIZE
#define EIGEN_HAVE__SSE2__BUT_NOT_OLD_GCC ((defined __SSE2__) && ( (!defined __GNUC__) || EIGEN_GNUC_AT_LEAST(4,2) ))
#define EIGEN_HAVE_MSVC_SSE2 ((defined(_M_IX86_FP)) && (_M_IX86_FP >= 2)) // the parentheses around defined are really needed by MSVC
// Now check for SSE2 with MSVC. Normally we'd formulate this in 1 line using defined() but this triggers MSVC bugs.
#ifdef _M_IX86_FP
#if (_M_IX86_FP >= 2)
#define EIGEN_HAVE_MSVC_SSE2 1
#endif
#endif
#ifndef EIGEN_HAVE_MSVC_SSE2
#define EIGEN_HAVE_MSVC_SSE2 0
#endif
#if (EIGEN_HAVE__SSE2__BUT_NOT_OLD_GCC || EIGEN_HAVE_MSVC_SSE2)
#define EIGEN_VECTORIZE
#define EIGEN_VECTORIZE_SSE