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| author |   Ard Biesheuvel <ard.biesheuvel@linaro.org> | 2018-08-23 17:48:45 +0100 |
|---|---|---|
| committer |   Herbert Xu <herbert@gondor.apana.org.au> | 2018-09-04 11:37:04 +0800 |
| commit | ed6ed11830a9ded520db31a6e2b69b6b0a1eb0e2 (patch) | |
| tree | bdf6908d874286a1dbd80884fbb9bccad6990a4a /crypto/algapi.c | |
| parent | crypto: arm/ghash-ce - implement support for 4-way aggregation (diff) | |
| download | wireguard-linux-ed6ed11830a9ded520db31a6e2b69b6b0a1eb0e2.tar.xz wireguard-linux-ed6ed11830a9ded520db31a6e2b69b6b0a1eb0e2.zip | |
crypto: arm64/aes-modes - get rid of literal load of addend vector
Replace the literal load of the addend vector with a sequence that
performs each add individually. This sequence is only 2 instructions
longer than the original, and 2% faster on Cortex-A53.
This is an improvement by itself, but also works around a Clang issue,
whose integrated assembler does not implement the GNU ARM asm syntax
completely, and does not support the =literal notation for FP registers
(more info at https://bugs.llvm.org/show_bug.cgi?id=38642)
Cc: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto/algapi.c')
0 files changed, 0 insertions, 0 deletions