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| author | David S. Miller <davem@davemloft.net> | 2012-03-16 03:05:49 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-03-16 03:05:49 -0700 |
| commit | dd7f470327139a88019b2c5ded8fc2811b0fed00 (patch) | |
| tree | a705d6cc32173d981fd73fc776d2a9ced2d78cab | |
| parent | e6a62e18fd9d429950e25db97ac216fa570bfa30 (diff) | |
| download | glibc-dd7f470327139a88019b2c5ded8fc2811b0fed00.zip glibc-dd7f470327139a88019b2c5ded8fc2811b0fed00.tar.gz glibc-dd7f470327139a88019b2c5ded8fc2811b0fed00.tar.bz2 | |
Implement optimized libc_fe*() math routines on sparc.
* sysdeps/sparc/fpu/math_private.h: New file.
| -rw-r--r-- | ChangeLog | 4 | ||||
| -rw-r--r-- | sysdeps/sparc/fpu/math_private.h | 68 |
2 files changed, 72 insertions, 0 deletions
@@ -1,3 +1,7 @@ +2012-03-16 David S. Miller <davem@davemloft.net> + + * sysdeps/sparc/fpu/math_private.h: New file. + 2012-03-15 David S. Miller <davem@davemloft.net> * sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_fma-vis3.S: New file. diff --git a/sysdeps/sparc/fpu/math_private.h b/sysdeps/sparc/fpu/math_private.h new file mode 100644 index 0000000..05ef623 --- /dev/null +++ b/sysdeps/sparc/fpu/math_private.h @@ -0,0 +1,68 @@ +#ifndef SPARC_MATH_PRIVATE_H +#define SPARC_MATH_PRIVATE_H 1 + +#include_next <math_private.h> +#include <fenv.h> + +#undef libc_feholdexcept +#define libc_feholdexcept(e) \ + do { \ + fenv_t etmp; \ + __fenv_stfsr(etmp); \ + *(e) = etmp; \ + etmp = etmp & ~((0x1f << 23) | FE_ALL_EXCEPT); \ + __fenv_ldfsr(etmp); \ + } while (0) +#undef libc_feholdexceptf +#define libc_feholdexceptf(e) libc_feholdexcept (e) +#undef libc_feholdexceptl +#define libc_feholdexceptl(e) libc_feholdexcept (e) + +#undef libc_feholdexcept_setround +#define libc_feholdexcept_setround(e, r) \ + do { \ + fenv_t etmp; \ + __fenv_stfsr(etmp); \ + *(e) = etmp; \ + etmp = etmp & ~((0x1f << 23) | FE_ALL_EXCEPT); \ + etmp = (etmp & ~__FE_ROUND_MASK) | (r); \ + __fenv_ldfsr(etmp); \ + } while (0) +#undef libc_feholdexcept_setroundf +#define libc_feholdexcept_setroundf(e, r) libc_feholdexcept_setround (e, r) +#undef libc_feholdexcept_setroundl +#define libc_feholdexcept_setroundl(e, r) libc_feholdexcept_setround (e, r) + +#undef libc_fetestexcept +#define libc_fetestexcept(e) \ + ({ \ + fenv_t etmp; \ + __fenv_stfsr(etmp); \ + etmp & (e) & FE_ALL_EXCEPT; }) +#undef libc_fetestexceptf +#define libc_fetestexceptf(e) libc_fetestexcept (e) +#undef libc_fetestexceptl +#define libc_fetestexceptl(e) libc_fetestexcept (e) + +#undef libc_fesetenv +#define libc_fesetenv(e) \ + __fenv_ldfsr(*e) +#undef libc_fesetenvf +#define libc_fesetenvf(e) libc_fesetenv (e) +#undef libc_fesetenvl +#define libc_fesetenvl(e) libc_fesetenv (e) + +#undef libc_feupdateenv +#define libc_feupdateenv(e) \ + do { \ + fenv_t etmp; \ + __fenv_stfsr(etmp); \ + __fenv_ldfsr(*e); \ + __feraiseexcept (etmp & FE_ALL_EXCEPT); \ + } while (0) +#undef libc_feupdateenvf +#define libc_feupdateenvf(e) libc_feupdateenv (e) +#undef libc_feupdateenvl +#define libc_feupdateenvl(e) libc_feupdateenv (e) + +#endif /* SPARC_MATH_PRIVATE_H */ |