diff options
| author | Anton Samokhvalov <[email protected]> | 2022-02-10 16:45:17 +0300 |
|---|---|---|
| committer | Daniil Cherednik <[email protected]> | 2022-02-10 16:45:17 +0300 |
| commit | d3a398281c6fd1d3672036cb2d63f842d2cb28c5 (patch) | |
| tree | dd4bd3ca0f36b817e96812825ffaf10d645803f2 /contrib/libs/cxxsupp/builtins/floatundixf.c | |
| parent | 72cb13b4aff9bc9cf22e49251bc8fd143f82538f (diff) | |
Restoring authorship annotation for Anton Samokhvalov <[email protected]>. Commit 2 of 2.
Diffstat (limited to 'contrib/libs/cxxsupp/builtins/floatundixf.c')
| -rw-r--r-- | contrib/libs/cxxsupp/builtins/floatundixf.c | 84 |
1 files changed, 42 insertions, 42 deletions
diff --git a/contrib/libs/cxxsupp/builtins/floatundixf.c b/contrib/libs/cxxsupp/builtins/floatundixf.c index d8eaf5b80d8..ca5e06d64dc 100644 --- a/contrib/libs/cxxsupp/builtins/floatundixf.c +++ b/contrib/libs/cxxsupp/builtins/floatundixf.c @@ -1,42 +1,42 @@ -/* ===-- floatundixf.c - Implement __floatundixf ---------------------------=== - * - * The LLVM Compiler Infrastructure - * - * This file is dual licensed under the MIT and the University of Illinois Open - * Source Licenses. See LICENSE.TXT for details. - * - * ===----------------------------------------------------------------------=== - * - * This file implements __floatundixf for the compiler_rt library. - * - * ===----------------------------------------------------------------------=== - */ - -#if !_ARCH_PPC - -#include "int_lib.h" - -/* Returns: convert a to a long double, rounding toward even. */ - -/* Assumption: long double is a IEEE 80 bit floating point type padded to 128 bits - * du_int is a 64 bit integral type - */ - -/* gggg gggg gggg gggg gggg gggg gggg gggg | gggg gggg gggg gggg seee eeee eeee eeee | - * 1mmm mmmm mmmm mmmm mmmm mmmm mmmm mmmm | mmmm mmmm mmmm mmmm mmmm mmmm mmmm mmmm - */ -COMPILER_RT_ABI long double -__floatundixf(du_int a) -{ - if (a == 0) - return 0.0; - const unsigned N = sizeof(du_int) * CHAR_BIT; - int clz = __builtin_clzll(a); - int e = (N - 1) - clz ; /* exponent */ - long_double_bits fb; - fb.u.high.s.low = (e + 16383); /* exponent */ - fb.u.low.all = a << clz; /* mantissa */ - return fb.f; -} - -#endif /* _ARCH_PPC */ +/* ===-- floatundixf.c - Implement __floatundixf ---------------------------=== + * + * The LLVM Compiler Infrastructure + * + * This file is dual licensed under the MIT and the University of Illinois Open + * Source Licenses. See LICENSE.TXT for details. + * + * ===----------------------------------------------------------------------=== + * + * This file implements __floatundixf for the compiler_rt library. + * + * ===----------------------------------------------------------------------=== + */ + +#if !_ARCH_PPC + +#include "int_lib.h" + +/* Returns: convert a to a long double, rounding toward even. */ + +/* Assumption: long double is a IEEE 80 bit floating point type padded to 128 bits + * du_int is a 64 bit integral type + */ + +/* gggg gggg gggg gggg gggg gggg gggg gggg | gggg gggg gggg gggg seee eeee eeee eeee | + * 1mmm mmmm mmmm mmmm mmmm mmmm mmmm mmmm | mmmm mmmm mmmm mmmm mmmm mmmm mmmm mmmm + */ +COMPILER_RT_ABI long double +__floatundixf(du_int a) +{ + if (a == 0) + return 0.0; + const unsigned N = sizeof(du_int) * CHAR_BIT; + int clz = __builtin_clzll(a); + int e = (N - 1) - clz ; /* exponent */ + long_double_bits fb; + fb.u.high.s.low = (e + 16383); /* exponent */ + fb.u.low.all = a << clz; /* mantissa */ + return fb.f; +} + +#endif /* _ARCH_PPC */ |
