On Wednesday, 13 June 2018 at 12:45:26 UTC, Fra Mecca wrote:
I get this on Linux 4.16.3-gentoo, AMD FX(tm)-6100 Six-Core Processor, 8GiB ram,

using ldc2 -O3L:
size memcpyC memcpyD
1 5 0
2 0 0
4 0 0
8 0 0
16 1519 0
32 1833 0
64 3816 0
128 7543 0
256 146500 0
512 194818 0
1024 329593 846142
2048 714945 1117132
4096 1596170 1803621
8192 5899818 6110026
16384 12338384 14141850
32768 24971315 26771484
65536 49806637 63260128

size memcpyC memcpyD
1 0 0
1 0 0
1 0 0
2 0 0
2 0 0
4 0 0
4 0 0
8 0 0
8 0 0
4 0 0
8 0 0
core.exception.AssertError@memcpyd.d(9): Assertion failure
----------------
??:? _d_assert [0xcaf056d5]
??:? [0xa015e7fe]
??:? [0xa0158cb0]
??:? void rt.dmain2._d_run_main(int, char**, extern (C) int function(char[][])*).runAll() [0xcaf29daf]
??:? _d_run_main [0xcaf29c7b]
??:? __libc_start_main [0xca160eeb]
??:? [0xa0158b29]

Yes, optimizations are throwing code away.  I'm working on it.

Mike

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