On Monday, 11 September 2017 at 11:55:45 UTC, Igor wrote:
In the meantime can anyone tell me how to add an attribute to a
function only if something is defined, since this doesn't work:
version(USE_SIMD_WITH_LDC) {
import ldc.attributes;
@target("ssse3")
} void funcThatUsesSIMD() {
...
version(LDC) {
import ldc.gccbuiltins_x86;
c = __builtin_ia32_pshufb128(c, *simdMasks);
} else {
c = __simd(XMM.PSHUFB, c, *simdMasks);
}
...
}
Regarding the crash in debug mode the problem was that my masks
variable wasn't properly aligned and I guess the best I can do
with the attribute is this:
version(LDC) import ldc.attributes;
else private struct target { string specifier; }
@target("ssse3")
void funcThatUsesSIMD() {...}