diff options
Diffstat (limited to 'compiler-rt/lib/builtins/floatundixf.c')
| -rw-r--r-- | compiler-rt/lib/builtins/floatundixf.c | 45 |
1 files changed, 21 insertions, 24 deletions
diff --git a/compiler-rt/lib/builtins/floatundixf.c b/compiler-rt/lib/builtins/floatundixf.c index 7c899385e77..85264adac19 100644 --- a/compiler-rt/lib/builtins/floatundixf.c +++ b/compiler-rt/lib/builtins/floatundixf.c @@ -1,40 +1,37 @@ -/* ===-- floatundixf.c - Implement __floatundixf ---------------------------=== - * - * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. - * See https://llvm.org/LICENSE.txt for license information. - * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception - * - * ===----------------------------------------------------------------------=== - * - * This file implements __floatundixf for the compiler_rt library. - * - * ===----------------------------------------------------------------------=== - */ +//===-- floatundixf.c - Implement __floatundixf ---------------------------===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// +// +// 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. */ +// 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 - */ +// 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 - */ +// 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 */ + 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 */ + fb.u.high.s.low = (e + 16383); // exponent + fb.u.low.all = a << clz; // mantissa return fb.f; } -#endif /* _ARCH_PPC */ +#endif // _ARCH_PPC |
