Add bignum_mont{sqr,mul}_p256_neon for Arm #118
Merged
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This patch adds
bignum_mont{sqr,mul}_p256_neon
functions.These are vectorized and instruction-rescheduled versions of
bignum_mont{sqr,mul}_p256
.They are verified using the equivalence checking tactics.
A new bash script
tools/external/slothy.sh
is added to help reproduce the optimized output.The 'intermediate' functions of the two functions are written as comments in the two assembly files.
Additionally,
umull2
is formalized add added to the simulator in order to verify the new functions.*_neon
functions' proofs are refactored a bit.