On Friday, 21 August 2015 at 02:02:57 UTC, rsw0x wrote:
On Friday, 21 August 2015 at 01:20:27 UTC, jmh530 wrote:
On Friday, 21 August 2015 at 00:00:09 UTC, H. S. Teoh wrote:
The gdc version, by contrast, inlines *everything*,
This could be why I've observed performance differentials in
dmd for doing some manual for loops rather than using the
stuff in std.algorithms.
ldc and gdc typically produce output nearly the same as
handwritten loops for ranges.
Which is really what we need to be happening with ranges. The
fact that they make code so much more idiomatic helps a _lot_,
making code faster to write and easier to understand and
maintain, but if we're taking performance hits from it, then we
start losing out to C++ code pretty quickly, which is _not_ what
we want.
- Jonathan M Davis
