On Tue, 6 Dec 2011 17:06:11 -0600, "Pierre-Louis Bossart" <pierre-louis.bossart at linux.intel.com> wrote: >> But you must somehow ensure that all code compiled with -msse3, NOT >> ONLY the inline assembly, is only ever run on SSE3-capable processors. >> Without the target function attribute from GCC 4.4, this becomes a tough >> requirement for the build system. > > There's no assembly in the code, we used primitives such as _mm_mul_ps() > which are natively supported by Gcc. Using instrinsics might avoid the impedance mismatch between the compiler and the assembler. > The -msse3 flag is only used for the low-level code, there should be no > conflict; if SSE3 is not supported this code is never called. Sure. You just have to be very careful to restrict -msse3 to SSE3-only code. -- R?mi Denis-Courmont http://www.remlab.net/
