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| author | David S. Miller <davem@davemloft.net> | 2012-03-28 22:35:26 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-03-28 22:35:26 -0700 |
| commit | 88d85d4f001fac0fd7ef4e3d05ca8a7d50b0c98f (patch) | |
| tree | dac097e3214f049492bbf41a575b6d846af3dd9e /sysdeps/sparc/sparc64/multiarch/memcpy.S | |
| parent | e5aa83e16d02bc8f1b1a352f83e12f3f14c4d4ac (diff) | |
| download | glibc-88d85d4f001fac0fd7ef4e3d05ca8a7d50b0c98f.tar.gz | |
Optimize mempcpy on sparc.
* sysdeps/sparc/sparc32/memcpy.S: Implement mempcpy using a stub
that branches into memcpy.
* sysdeps/sparc/sparc64/memcpy.S: Likewise.
* sysdeps/sparc/sparc64/multiarch/memcpy-niagara1.S: Likewise.
* sysdeps/sparc/sparc64/multiarch/memcpy-niagara2.S: Likewise.
* sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S: Likewise.
* sysdeps/sparc/sparc64/multiarch/memcpy.S: Add mempcpy multiarch
bits.
* sysdeps/sparc/sparc64/rtld-memcpy.c: Include generic mempcpy
implementation too.
* sysdeps/sparc/mempcpy.S: New file.
Diffstat (limited to 'sysdeps/sparc/sparc64/multiarch/memcpy.S')
| -rw-r--r-- | sysdeps/sparc/sparc64/multiarch/memcpy.S | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/sysdeps/sparc/sparc64/multiarch/memcpy.S b/sysdeps/sparc/sparc64/multiarch/memcpy.S index 0f3751e5e7..20c72d9bbd 100644 --- a/sysdeps/sparc/sparc64/multiarch/memcpy.S +++ b/sysdeps/sparc/sparc64/multiarch/memcpy.S @@ -72,12 +72,72 @@ ENTRY(memcpy) mov %o1, %o0 END(memcpy) +ENTRY(__mempcpy) + .type __mempcpy, @gnu_indirect_function +# ifdef SHARED + SETUP_PIC_REG_LEAF(o3, o5) +# endif + andcc %o0, HWCAP_SPARC_N2, %g0 + be 1f + andcc %o0, HWCAP_SPARC_BLKINIT, %g0 +# ifdef SHARED + sethi %gdop_hix22(__mempcpy_niagara2), %o1 + xor %o1, %gdop_lox10(__mempcpy_niagara2), %o1 +# else + set __mempcpy_niagara2, %o1 +# endif + ba 10f + nop +1: be 1f + andcc %o0, HWCAP_SPARC_ULTRA3, %g0 +# ifdef SHARED + sethi %gdop_hix22(__mempcpy_niagara1), %o1 + xor %o1, %gdop_lox10(__mempcpy_niagara1), %o1 +# else + set __mempcpy_niagara1, %o1 +# endif + ba 10f + nop +1: be 9f + nop +# ifdef SHARED + sethi %gdop_hix22(__mempcpy_ultra3), %o1 + xor %o1, %gdop_lox10(__mempcpy_ultra3), %o1 +# else + set __mempcpy_ultra3, %o1 +# endif + ba 10f + nop +9: +# ifdef SHARED + sethi %gdop_hix22(__mempcpy_ultra1), %o1 + xor %o1, %gdop_lox10(__mempcpy_ultra1), %o1 +# else + set __mempcpy_ultra1, %o1 +# endif +10: +# ifdef SHARED + add %o3, %o1, %o1 +# endif + retl + mov %o1, %o0 +END(__mempcpy) + libc_hidden_builtin_def (memcpy) +libc_hidden_def (__mempcpy) +weak_alias (__mempcpy, mempcpy) +libc_hidden_builtin_def (mempcpy) + #undef libc_hidden_builtin_def #define libc_hidden_builtin_def(name) +#undef weak_alias +#define weak_alias(x, y) +#undef libc_hidden_def +#define libc_hidden_def(name) #define memcpy __memcpy_ultra1 +#define __mempcpy __mempcpy_ultra1 #endif |