------- Comment #6 from tkoenig at gcc dot gnu dot org 2008-12-04 19:58 -------
(In reply to comment #5)
> For comparison with ifort ("loop was vectorized" in lines 40, 41, 43):
> matmul = 2.660166 s
> subroutine without explicit interface: 0.0000000E+00 s
> subroutine with explicit interface: 0.0000000E+00 s
> inline with sum 0.0000000E+00 s
ifort detects that the call to invalidate doesn't actually invalidate
anything and so just removes the whole matmul stuff.
Intelligent, but bad for benchmarks :-)
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37131
