x86_64 assembly pack: "optimize" for Knights Landing, add AVX-512 results.

[openssl.git] / crypto / poly1305 / asm / poly1305-x86_64.pl

diff --git a/crypto/poly1305/asm/poly1305-x86_64.pl b/crypto/poly1305/asm/poly1305-x86_64.pl
index 1dce5d61e3a081587245ff5cdd6fc0bf0ad5e2ff..1faa6ebf4639971160aabb92e7ba5ba7727b62a9 100755 (executable)
--- a/crypto/poly1305/asm/poly1305-x86_64.pl
+++ b/crypto/poly1305/asm/poly1305-x86_64.pl
@@ -27,14 +27,15 @@
 # Numbers are cycles per processed byte with poly1305_blocks alone,
 # measured with rdtsc at fixed clock frequency.
 #
-#              IALU/gcc-4.8(*) AVX(**)         AVX2
+#              IALU/gcc-4.8(*) AVX(**)         AVX2    AVX-512
 # P4           4.46/+120%      -
 # Core 2       2.41/+90%       -
 # Westmere     1.88/+120%      -
 # Sandy Bridge 1.39/+140%      1.10
 # Haswell      1.14/+175%      1.11            0.65
-# Skylake      1.13/+120%      0.96            0.51
+# Skylake[-X]  1.13/+120%      0.96            0.51    [0.35]
 # Silvermont   2.83/+95%       -
+# Knights L    3.60/-          1.65            1.10    (***)
 # Goldmont     1.70/+180%      -
 # VIA Nano     1.82/+150%      -
 # Sledgehammer 1.38/+160%      -
@@ -49,6 +50,8 @@
 #      Core processors, 50-30%, less newer processor is, but slower on
 #      contemporary ones, for example almost 2x slower on Atom, and as
 #      former are naturally disappearing, SSE2 is deemed unnecessary;
+# (***)        Current AVX-512 code requires BW and VL extensions and can not
+#      execute on Knights Landing;
 
 $flavour = shift;
 $output  = shift;