diff options
Diffstat (limited to 'compiler-rt/lib/builtins/floatdixf.c')
| -rw-r--r-- | compiler-rt/lib/builtins/floatdixf.c | 47 |
1 files changed, 22 insertions, 25 deletions
diff --git a/compiler-rt/lib/builtins/floatdixf.c b/compiler-rt/lib/builtins/floatdixf.c index d88a9d9d4bf..ad5deb2d4bf 100644 --- a/compiler-rt/lib/builtins/floatdixf.c +++ b/compiler-rt/lib/builtins/floatdixf.c @@ -1,30 +1,27 @@ -/* ===-- floatdixf.c - Implement __floatdixf -------------------------------=== - * - * 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 __floatdixf for the compiler_rt library. - * - * ===----------------------------------------------------------------------=== - */ +//===-- floatdixf.c - Implement __floatdixf -------------------------------===// +// +// 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 __floatdixf 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 di_int is a 64 bit integral type - */ +// Assumption: long double is a IEEE 80 bit floating point type padded to 128 +// bits di_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 __floatdixf(di_int a) { if (a == 0) @@ -33,12 +30,12 @@ COMPILER_RT_ABI long double __floatdixf(di_int a) { const di_int s = a >> (N - 1); a = (a ^ s) - s; 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 = ((su_int)s & 0x00008000) | /* sign */ - (e + 16383); /* exponent */ - fb.u.low.all = a << clz; /* mantissa */ + fb.u.high.s.low = ((su_int)s & 0x00008000) | // sign + (e + 16383); // exponent + fb.u.low.all = a << clz; // mantissa return fb.f; } -#endif /* !_ARCH_PPC */ +#endif // !_ARCH_PPC |
