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bit_util: Guarantee popcount's presence.

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Implement popcount generically, so that we can rely on it being present.
This commit is contained in:
David Goldblatt 2020-12-02 10:04:32 -08:00 • committed by David Goldblatt
parent d9f7e6c668
commit 734e72ce8f
3 changed files with 167 additions and 4 deletions
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configure.ac
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@ -1594,6 +1594,7 @@ JE_COMPILABLE([a program using __builtin_popcountl], [
if test "x${je_cv_gcc_builtin_popcountl}" = "xyes" ; then
AC_DEFINE([JEMALLOC_INTERNAL_POPCOUNT], [__builtin_popcount])
AC_DEFINE([JEMALLOC_INTERNAL_POPCOUNTL], [__builtin_popcountl])
AC_DEFINE([JEMALLOC_INTERNAL_POPCOUNTLL], [__builtin_popcountll])
fi
AC_ARG_WITH([lg_quantum],