diff options
author | Anton Samokhvalov <[email protected]> | 2022-02-10 16:45:15 +0300 |
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committer | Daniil Cherednik <[email protected]> | 2022-02-10 16:45:15 +0300 |
commit | 72cb13b4aff9bc9cf22e49251bc8fd143f82538f (patch) | |
tree | da2c34829458c7d4e74bdfbdf85dff449e9e7fb8 /contrib/libs/cxxsupp/builtins/floatundixf.c | |
parent | 778e51ba091dc39e7b7fcab2b9cf4dbedfb6f2b5 (diff) |
Restoring authorship annotation for Anton Samokhvalov <[email protected]>. Commit 1 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 ca5e06d64dc..d8eaf5b80d8 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 */ |