https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71659
postmaster at raasu dot org changed:
What |Removed |Added
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CC| |postmaster at raasu dot org
--- Comment #2 from postmaster at raasu dot org ---
Portability is one main reason to add missing intrinsics... with combination of
cpuid check and _xgetbv() we can cleanly check if AVX or MPX is available at
run-time. We can also check specific instructions during configure process to
see if we need to add workarounds for bad or missing functions/intrinsics.
Some developers think that cleanliness of the code is more important than need
to reduplicate hand-written assembler code every time for optimal performance.
We have to remember that gcc is not only used for BSD-like operating systems,
including OS/X, Linux, *BSD etc, but for Cygwin, MSYS/MSYS2 and MinGW which
benefit from gcc being as close as possible compiler of Visual C++ regarding
intrinsics support.
