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Current Path: /usr/src/contrib/llvm-project/compiler-rt/lib/builtins/ppc

usr / src / contrib / llvm-project / compiler-rt / lib / builtins / ppc /

📁 ..
📄 DD.h(1.12 KB)
📄 divtc3.c(3.23 KB)
📄 fixtfdi.c(3.29 KB)
📄 fixtfti.c(1.32 KB)
📄 fixunstfdi.c(1.94 KB)
📄 fixunstfti.c(4.58 KB)
📄 floatditf.c(1.02 KB)
📄 floattitf.c(1.97 KB)
📄 floatunditf.c(1.25 KB)
📄 gcc_qadd.c(1.88 KB)
📄 gcc_qdiv.c(1.25 KB)
📄 gcc_qmul.c(1.25 KB)
📄 gcc_qsub.c(1.88 KB)
📄 multc3.c(2.55 KB)
📄 restFP.S(1.44 KB)
📄 saveFP.S(1.33 KB)

Editing: fixtfti.c

//===--- lib/builtins/ppc/fixtfti.c - Convert long double->int128 *-C -*---===//
//
// 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 converting the 128bit IBM/PowerPC long double (double-
// double) data type to a signed 128 bit integer.
//
//===----------------------------------------------------------------------===//

#include "../int_math.h"

// Convert long double into a signed 128-bit integer.
__int128_t __fixtfti(long double input) {

// If we are trying to convert a NaN, return the NaN bit pattern.
  if (crt_isnan(input)) {
    return ((__uint128_t)0x7FF8000000000000ll) << 64 |
           (__uint128_t)0x0000000000000000ll;
  }

// Note: overflow is an undefined behavior for this conversion.
  // For this reason, overflow is not checked here.

// If the long double is negative, use unsigned conversion from its absolute
  // value.
  if (input < 0.0) {
    __uint128_t result = (__uint128_t)(-input);
    return -((__int128_t)result);
  }

// Otherwise, use unsigned conversion from the input value.
  __uint128_t result = (__uint128_t)input;
  return result;
}

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Editing: fixtfti.c

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