43 lines
1.3 KiB
C
43 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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#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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COMPILER_RT_ABI du_int __fixunsdfdi(double a) {
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if (a <= 0.0)
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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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typedef du_int fixuint_t;
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#include "fp_fixuint_impl.inc"
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COMPILER_RT_ABI du_int __fixunsdfdi(fp_t a) { return __fixuint(a); }
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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) { return __fixunsdfdi(a); }
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#else
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COMPILER_RT_ALIAS(__fixunsdfdi, __aeabi_d2ulz)
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#endif
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#endif
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