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target/arm: Optimize aarch64 rev16
authorRichard Henderson <rth@twiddle.net>
Tue, 18 Jul 2017 06:16:57 +0000 (20:16 -1000)
committerRichard Henderson <rth@twiddle.net>
Wed, 19 Jul 2017 21:45:15 +0000 (14:45 -0700)
commitabb1066df313602ef0ca631126bd342d399d5359
tree5f0878adce2e9a803c7e12d8e6971998f11a7cdftree | snapshot
parentd97dd988ecd67f4fd12a80a55f07c1817f19b002commit | diff
target/arm: Optimize aarch64 rev16

It is much shorter to reverse all 4 half-words in parallel
than extract, reverse, and deposit each in turn.

Suggested-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
target/arm/translate-a64.c diff | blob | history
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