diff options
| -rw-r--r-- | Eigen/src/Core/util/Macros.h | 2 | ||||
| -rw-r--r-- | doc/PreprocessorDirectives.dox | 4 |
2 files changed, 6 insertions, 0 deletions
diff --git a/Eigen/src/Core/util/Macros.h b/Eigen/src/Core/util/Macros.h index 3a56b0e36..e351b7ad9 100644 --- a/Eigen/src/Core/util/Macros.h +++ b/Eigen/src/Core/util/Macros.h @@ -514,11 +514,13 @@ // EIGEN_STRONG_INLINE is a stronger version of the inline, using __forceinline on MSVC, // but it still doesn't use GCC's always_inline. This is useful in (common) situations where MSVC needs forceinline // but GCC is still doing fine with just inline. +#ifndef EIGEN_STRONG_INLINE #if EIGEN_COMP_MSVC || EIGEN_COMP_ICC #define EIGEN_STRONG_INLINE __forceinline #else #define EIGEN_STRONG_INLINE inline #endif +#endif // EIGEN_ALWAYS_INLINE is the stronget, it has the effect of making the function inline and adding every possible // attribute to maximize inlining. This should only be used when really necessary: in particular, diff --git a/doc/PreprocessorDirectives.dox b/doc/PreprocessorDirectives.dox index 0919d4190..b6d08c700 100644 --- a/doc/PreprocessorDirectives.dox +++ b/doc/PreprocessorDirectives.dox @@ -122,6 +122,10 @@ run time. However, these assertions do cost time and can thus be turned off. this threshold raises a compile time assertion. Use 0 to set no limit. Default is 128 KB. - \b \c EIGEN_NO_CUDA - disables CUDA support when defined. Might be useful in .cu files for which Eigen is used on the host only, and never called from device code. + - \b \c EIGEN_STRONG_INLINE - This macro is used to qualify critical functions and methods that we expect the compiler to inline. + By default it is defined to \c __forceinline for MSVC and ICC, and to \c inline for other compilers. A tipical usage is to + define it to \c inline for MSVC users wanting faster compilation times, at the risk of performance degradations in some rare + cases for which MSVC inliner fails to do a good job. - \c EIGEN_DONT_ALIGN - Deprecated, it is a synonym for \c EIGEN_MAX_ALIGN_BYTES=0. It disables alignment completely. %Eigen will not try to align its objects and does not expect that any objects passed to it are aligned. This will turn off vectorization if \b EIGEN_UNALIGNED_VECTORIZE=1. Not defined by default. |