[Bug target/14326] boehm-gc hardcodes to 3DNow! prefetch for x86_64

[jsturm at gcc dot gnu dot org]

------- Additional Comments From jsturm at gcc dot gnu dot org  2004-02-27 17:38 -------
__builtin_prefetch may be fine for GCC's copy of the GC, however the upstream
version will need another solution as it is sometimes used with non-GCC compilers.

(There aren't many compilers available yet for x86-64, but I'd guess icc, msvc
and others will appear before long.)

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14326