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Diffstat (limited to 'FeatureTest.md')
| -rw-r--r-- | FeatureTest.md | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/FeatureTest.md b/FeatureTest.md index 699d946..2b0aacf 100644 --- a/FeatureTest.md +++ b/FeatureTest.md @@ -56,10 +56,12 @@ To illustrate, consider 4 examples: efficient polyfill (e.g., `f64x2`, which introduces both operators *and* types), alternative algorithms need to be provided and selected at load time. -As a hypothetical (not implemented) example of the SIMD example, the toolchain -could provide a new function attribute that indicated that the function -was a feature-dependent optimized version of another function (similar to -`ifunc`s, but without the callback): +As a hypothetical (not implemented) example polyfilling the SIMD `f64x2` +feature, the C++ compiler could provide a new function attribute that indicated +that one function was an optimized, but feature-dependent, version of another +function (similar to the +[`ifunc` attribute](https://gcc.gnu.org/onlinedocs/gcc-4.7.2/gcc/Function-Attributes.html#index-g_t_0040code_007bifunc_007d-attribute-2529), +but without the callback): ``` #include <xmmintrin.h> void foo(...) { |