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| author | Joseph Myers <joseph@codesourcery.com> | 2005-11-28 13:42:32 +0000 |
|---|---|---|
| committer | Joseph Myers <jsm28@gcc.gnu.org> | 2005-11-28 13:42:32 +0000 |
| commit | 78815c559050532b0dd27440c9bbb7fe4ca84717 (patch) | |
| tree | 5dacc7e99e9bdb5f215dbbbd1c7c76f00f4c3684 | |
| parent | e13dd54f7ad37f312638c1f9d2ef00a15fbf0830 (diff) | |
| download | gcc-78815c559050532b0dd27440c9bbb7fe4ca84717.zip gcc-78815c559050532b0dd27440c9bbb7fe4ca84717.tar.gz gcc-78815c559050532b0dd27440c9bbb7fe4ca84717.tar.bz2 | |
fp-bit.c (isnan, [...]): Use __builtin_expect.
* config/fp-bit.c (isnan, isinf, pack_d, unpack_d): Use
__builtin_expect.
From-SVN: r107603
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/config/fp-bit.c | 12 |
2 files changed, 12 insertions, 5 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 2320e10..1dd5299 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,10 @@ 2005-11-28 Joseph S. Myers <joseph@codesourcery.com> + * config/fp-bit.c (isnan, isinf, pack_d, unpack_d): Use + __builtin_expect. + +2005-11-28 Joseph S. Myers <joseph@codesourcery.com> + * config/fp-bit.h (LSHIFT): Take shift count parameter. * config/fp-bit.c (_fpadd_parts): Shift in one go instead of one bit at a time. diff --git a/gcc/config/fp-bit.c b/gcc/config/fp-bit.c index cf943da..ef7437d 100644 --- a/gcc/config/fp-bit.c +++ b/gcc/config/fp-bit.c @@ -160,14 +160,15 @@ INLINE static int isnan ( fp_number_type * x) { - return x->class == CLASS_SNAN || x->class == CLASS_QNAN; + return __builtin_expect (x->class == CLASS_SNAN || x->class == CLASS_QNAN, + 0); } INLINE static int isinf ( fp_number_type * x) { - return x->class == CLASS_INFINITY; + return __builtin_expect (x->class == CLASS_INFINITY, 0); } #endif /* NO_NANS */ @@ -249,7 +250,7 @@ pack_d ( fp_number_type * src) } else { - if (src->normal_exp < NORMAL_EXPMIN) + if (__builtin_expect (src->normal_exp < NORMAL_EXPMIN, 0)) { #ifdef NO_DENORMALS /* Go straight to a zero representation if denormals are not @@ -296,7 +297,7 @@ pack_d ( fp_number_type * src) #endif /* NO_DENORMALS */ } else if (!LARGEST_EXPONENT_IS_NORMAL (FRAC_NBITS) - && src->normal_exp > EXPBIAS) + && __builtin_expect (src->normal_exp > EXPBIAS, 0)) { exp = EXPMAX; fraction = 0; @@ -560,7 +561,8 @@ unpack_d (FLO_union_type * src, fp_number_type * dst) dst->fraction.ll = fraction; } } - else if (!LARGEST_EXPONENT_IS_NORMAL (FRAC_NBITS) && exp == EXPMAX) + else if (!LARGEST_EXPONENT_IS_NORMAL (FRAC_NBITS) + && __builtin_expect (exp == EXPMAX, 0)) { /* Huge exponent*/ if (fraction == 0) |