diff options
Diffstat (limited to 'sysdeps')
| -rw-r--r-- | sysdeps/x86_64/multiarch/memcmp.S | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/sysdeps/x86_64/multiarch/memcmp.S b/sysdeps/x86_64/multiarch/memcmp.S index 8262317..6129820 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 |