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| author | Kaveh R. Ghazi <ghazi@caip.rutgers.edu> | 2007-07-18 17:30:38 +0000 |
|---|---|---|
| committer | Kaveh Ghazi <ghazi@gcc.gnu.org> | 2007-07-18 17:30:38 +0000 |
| commit | 7faa1bbb5d0206cc83f20c1145f612f7754fdcf3 (patch) | |
| tree | eb2db58c64bbaba8f0181d8d24ef99a386911de5 /gcc/c-cppbuiltin.c | |
| parent | b5d32c25372d1e0604bbd8471d735e46215dbe03 (diff) | |
| download | gcc-7faa1bbb5d0206cc83f20c1145f612f7754fdcf3.zip gcc-7faa1bbb5d0206cc83f20c1145f612f7754fdcf3.tar.gz gcc-7faa1bbb5d0206cc83f20c1145f612f7754fdcf3.tar.bz2 | |
re PR target/30652 (SSE expansion is missing for isinf() and other fpclassify functions)
PR target/30652
PR middle-end/20558
* builtins.c (expand_builtin_interclass_mathfn): Provide a
generic fallback for isinf.
* c-cppbuiltin.c (builtin_define_float_constants): Move FP max
calculation code ...
* real.c (get_max_float): ... to here.
* real.h (get_max_float): New.
testsuite:
* gcc.dg/pr28796-1.c: Add more cases.
* gcc.dg/pr28796-2.c: Likewise.
From-SVN: r126724
Diffstat (limited to 'gcc/c-cppbuiltin.c')
| -rw-r--r-- | gcc/c-cppbuiltin.c | 27 |
1 files changed, 2 insertions, 25 deletions
diff --git a/gcc/c-cppbuiltin.c b/gcc/c-cppbuiltin.c index 19bb47c..653c5e4 100644 --- a/gcc/c-cppbuiltin.c +++ b/gcc/c-cppbuiltin.c @@ -200,31 +200,8 @@ builtin_define_float_constants (const char *name_prefix, /* Since, for the supported formats, B is always a power of 2, we construct the following numbers directly as a hexadecimal constants. */ - - /* The maximum representable finite floating-point number, - (1 - b**-p) * b**emax */ - { - int i, n; - char *p; - - strcpy (buf, "0x0."); - n = fmt->p; - for (i = 0, p = buf + 4; i + 3 < n; i += 4) - *p++ = 'f'; - if (i < n) - *p++ = "08ce"[n - i]; - sprintf (p, "p%d", fmt->emax); - if (fmt->pnan < fmt->p) - { - /* This is an IBM extended double format made up of two IEEE - doubles. The value of the long double is the sum of the - values of the two parts. The most significant part is - required to be the value of the long double rounded to the - nearest double. Rounding means we need a slightly smaller - value for LDBL_MAX. */ - buf[4 + fmt->pnan / 4] = "7bde"[fmt->pnan % 4]; - } - } + get_max_float (fmt, buf, sizeof (buf)); + sprintf (name, "__%s_MAX__", name_prefix); builtin_define_with_hex_fp_value (name, type, decimal_dig, buf, fp_suffix, fp_cast); |