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| author | Erik Schnetter <schnetter@gmail.com> | 2013-07-02 22:38:41 -0400 |
|---|---|---|
| committer | Erik Schnetter <schnetter@gmail.com> | 2013-07-02 22:38:41 -0400 |
| commit | 440d92f0a53e0d09773f4a1ee796bc835e1ec9dc (patch) | |
| tree | 99bcc18de4d6c27e56766e67526d7ecdd98a9bf8 | |
| parent | 342fc114706525b45807abace10f7fd09d43b195 (diff) | |
| download | vecmathlib-440d92f0a53e0d09773f4a1ee796bc835e1ec9dc.zip vecmathlib-440d92f0a53e0d09773f4a1ee796bc835e1ec9dc.tar.gz | |
Choose FP conformance settings automatically depending on fast-math
| -rw-r--r-- | vecmathlib.h | 27 |
1 files changed, 22 insertions, 5 deletions
diff --git a/vecmathlib.h b/vecmathlib.h index aa81110..7818b26 100644 --- a/vecmathlib.h +++ b/vecmathlib.h @@ -12,11 +12,9 @@ # define VML_DEBUG #endif -#undef VML_HAVE_DENORMALS -#undef VML_HAVE_FP_CONTRACT // see below -#undef VML_HAVE_INF -#undef VML_HAVE_NAN -#define VML_HAVE_SIGNED_ZERO + + +// FP settings // Possible effects of not having VML_HAVE_FP_CONTRACT: // - can re-associate @@ -24,6 +22,25 @@ // - can break ties differently when rounding (?) // - can evaluate functions with reduced precision (80% of significant digits) +// default settings +#define VML_HAVE_DENORMALS +#define VML_HAVE_FP_CONTRACT +#define VML_HAVE_INF +#define VML_HAVE_NAN +#define VML_HAVE_SIGNED_ZERO + +// optimized settings +#ifdef __FAST_MATH__ +# undef VML_HAVE_DENORMALS +# undef VML_HAVE_FP_CONTRACT +# undef VML_HAVE_INF +# undef VML_HAVE_NAN +#endif + +#warning "TODO: introduce mad, as fast version of fma" +#warning "TODO: introduce ieee_isnan and friends" +#warning "TODO: switch between isnan and ieee_isnan at an outside level" + // This workaround is needed for older libstdc++ versions such as the |
