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realname "MPI Assembler Backend for 64 bit Systems"
mp_bits 64
replace_file mp_asm.h
# Disable amd64 since (nominally) the mp_amd64 module has that covered
<arch>
alpha
# amd64
ia64
mips64
ppc64
sparc64
</arch>
# The inline asm only works with gcc, but it looks like (at least on
# UltraSPARC), using 64-bit words and the sythensized multiply is a 5 to 25%
# win, so it's probably worth using elsewhere.
<cc>
gcc
sunwspro
</cc>
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