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| author | David S. Miller <davem@davemloft.net> | 2012-03-14 16:29:47 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-03-14 16:43:09 -0700 |
| commit | eae47a361821b60ad4274feae1d6e3fa4572cd0a (patch) | |
| tree | 00abf7a0cd073fc519d074d18f1163a8f47ee0c2 /sysdeps/sparc/sparc64/fpu/multiarch/s_signbit.S | |
| parent | 7bd951ff59e0443ca1bdd5b0ea58f6f4f641ac73 (diff) | |
| download | glibc-eae47a361821b60ad4274feae1d6e3fa4572cd0a.tar.gz | |
Add framework for using sparc VIS3 instructions, use it for copysign/signbit.
* sysdeps/sparc/configure.in: New file.
* sysdeps/sparc/configure: Generate.
* configure.in (libc_cv_sparc_as_vis3): Substitute.
* configure: Regenerate.
* config.h.in (HAVE_AS_VIS3_SUPPORT): New.
* config.make.in (have-as-vis3): New.
* sysdeps/sparc/sparc32/sparcv9/Makefile (ASFLAGS-*): If VIS3 is
available use -Av9d instead of -Av9a.
* sysdeps/sparc/sparc64/Makefile: Likewise.
* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/Makefile: New file.
* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_copysign-vis3.S: New file.
* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_copysign.S: New file.
* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_copysignf-vis3.S: New file.
* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_copysignf.S: New file.
* sysdeps/sparc/sparc64/fpu/multiarch/Makefile: New file.
* sysdeps/sparc/sparc64/fpu/multiarch/s_signbit-vis3.S: New file.
* sysdeps/sparc/sparc64/fpu/multiarch/s_signbit.S: New file.
* sysdeps/sparc/sparc64/fpu/multiarch/s_signbitf-vis3.S: New file.
* sysdeps/sparc/sparc64/fpu/multiarch/s_signbitf.S: New file.
Diffstat (limited to 'sysdeps/sparc/sparc64/fpu/multiarch/s_signbit.S')
| -rw-r--r-- | sysdeps/sparc/sparc64/fpu/multiarch/s_signbit.S | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/sysdeps/sparc/sparc64/fpu/multiarch/s_signbit.S b/sysdeps/sparc/sparc64/fpu/multiarch/s_signbit.S new file mode 100644 index 0000000000..a8e9728935 --- /dev/null +++ b/sysdeps/sparc/sparc64/fpu/multiarch/s_signbit.S @@ -0,0 +1,57 @@ +#include <sysdep.h> + + .text +ENTRY(__signbit) + .type __signbit, @gnu_indirect_function +# ifdef SHARED + SETUP_PIC_REG_LEAF(o3, o5) +# endif +# ifdef HAVE_AS_VIS3_SUPPORT + set HWCAP_SPARC_VIS3, %o1 + andcc %o0, %o1, %g0 + be 9f + nop +# ifdef SHARED + sethi %gdop_hix22(__signbit_vis3), %o1 + xor %o1, %gdop_lox10(__signbit_vis3), %o1 +# else + set __signbit_vis3, %o1 +# endif + ba 10f + nop +9: +# endif +# ifdef SHARED + sethi %gdop_hix22(__signbit_generic), %o1 + xor %o1, %gdop_lox10(__signbit_generic), %o1 +# else + set __signbit_generic, %o1 +# endif +# ifdef HAVE_AS_VIS3_SUPPORT +10: +# endif +# ifdef SHARED + add %o3, %o1, %o1 +# endif + retl + mov %o1, %o0 +END(__signbit) +weak_alias (__signbit, signbit) + +/* On 64-bit the double version will also always work for + long-double-precision since in both cases the word with the + sign bit in it is passed always in register %f0. */ +strong_alias (__signbit, __signbitl) +hidden_def (__signbitl) +weak_alias (__signbitl, signbitl) + +# undef weak_alias +# define weak_alias(a, b) +# undef strong_alias +# define strong_alias(a, b) +# undef hidden_def +# define hidden_def(a) + +#define __signbit __signbit_generic + +#include "../s_signbit.S" |