forked from OSchip/llvm-project
52 lines
1.3 KiB
C
52 lines
1.3 KiB
C
/* ===-- fixunsdfdi.c - Implement __fixunsdfdi -----------------------------===
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*
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* Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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* See https://llvm.org/LICENSE.txt for license information.
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* SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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*
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* ===----------------------------------------------------------------------===
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*/
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#define DOUBLE_PRECISION
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#include "fp_lib.h"
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#ifndef __SOFT_FP__
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/* Support for systems that have hardware floating-point; can set the invalid
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* flag as a side-effect of computation.
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*/
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COMPILER_RT_ABI du_int
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__fixunsdfdi(double a)
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{
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if (a <= 0.0) return 0;
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su_int high = a / 4294967296.f; /* a / 0x1p32f; */
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su_int low = a - (double)high * 4294967296.f; /* high * 0x1p32f; */
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return ((du_int)high << 32) | low;
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}
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#else
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/* Support for systems that don't have hardware floating-point; there are no
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* flags to set, and we don't want to code-gen to an unknown soft-float
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* implementation.
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*/
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typedef du_int fixuint_t;
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#include "fp_fixuint_impl.inc"
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COMPILER_RT_ABI du_int
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__fixunsdfdi(fp_t a) {
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return __fixuint(a);
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}
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#endif
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#if defined(__ARM_EABI__)
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#if defined(COMPILER_RT_ARMHF_TARGET)
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AEABI_RTABI du_int __aeabi_d2ulz(fp_t a) {
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return __fixunsdfdi(a);
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}
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#else
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AEABI_RTABI du_int __aeabi_d2ulz(fp_t a) COMPILER_RT_ALIAS(__fixunsdfdi);
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#endif
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#endif
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