d@nny disc@ mc²
boosted
@hipsterelectron @dragon I tend to believe the #prgama/optimization attribute for optimizations should really only be used for debugging purposes. There are other ways to do things without them. E.g the noipa, noclone, noipa attributes (note clang only knows about the noinline one). Compiler barriers could be used too.
Or the new #pragama to mark loops to unroll or not to vectorize.
The ` #pragma openmp simd` one could used with just -fopenmp-simd and you dont need the full openmp support is another example there.
The ones for #pragma/attribute to change the target are valid uses in headers though.
Note the #pragma for optimization is supposed to change the OPTIMIZATION macro but that is broken with gcc' c++ frontend until a few weeks ago (I pushed a fix for it).