From a7fbedff76494b5b694f647e9c681cf8988056ce Mon Sep 17 00:00:00 2001 From: "H.J. Lu" Date: Thu, 18 May 2017 14:02:02 -0700 Subject: Correct comments in x86_64/multiarch/memcmp.S * sysdeps/x86_64/multiarch/memcmp.S (__GI_memcmp): Correct comments. --- sysdeps/x86_64/multiarch/memcmp.S | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'sysdeps/x86_64/multiarch') diff --git a/sysdeps/x86_64/multiarch/memcmp.S b/sysdeps/x86_64/multiarch/memcmp.S index 82623173d6..6129820093 100644 --- a/sysdeps/x86_64/multiarch/memcmp.S +++ b/sysdeps/x86_64/multiarch/memcmp.S @@ -56,9 +56,9 @@ END(memcmp) # ifdef SHARED # undef libc_hidden_builtin_def -/* IFUNC doesn't work with the hidden functions in shared library since - they will be called without setting up EBX needed for PLT which is - used by IFUNC. */ +/* It doesn't make sense to send libc-internal memcmp calls through a PLT. + The speedup we get from using SSE4 instructions is likely eaten away + by the indirect call in the PLT. */ # define libc_hidden_builtin_def(name) \ .globl __GI_memcmp; __GI_memcmp = __memcmp_sse2 # endif -- cgit v1.2.1