On Saturday, 21 May 2016 at 16:25:27 UTC, Richard Delorme wrote:
With the above versions & my poor knowledge of the compilers, pgo & BUILD=popcount only worked with gdc. I will try to upgrade to more recent versions to see if things changed.
With LDC, you can pass "-mattr=+popcnt" to use the popcount instruction. Or "-mattr=+sse42" to enable SSE4.2 (like you seem to do in the Makefile).