| 1 | //===-- fixunsdfdi.c - Implement __fixunsdfdi -----------------------------===// |
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| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | |
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| 9 | #define DOUBLE_PRECISION |
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| 10 | #include "fp_lib.h" |
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| 11 | |
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| 12 | #ifndef __SOFTFP__ |
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| 13 | // Support for systems that have hardware floating-point; can set the invalid |
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| 14 | // flag as a side-effect of computation. |
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| 15 | |
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| 16 | COMPILER_RT_ABI du_int __fixunsdfdi(double a) { |
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| 17 | if (a <= 0.0) |
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| 18 | return 0; |
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| 19 | su_int high = a / 4294967296.f; // a / 0x1p32f; |
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| 20 | su_int low = a - (double)high * 4294967296.f; // high * 0x1p32f; |
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| 21 | return ((du_int)high << 32) | low; |
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| 22 | } |
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| 23 | |
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| 24 | #else |
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| 25 | // Support for systems that don't have hardware floating-point; there are no |
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| 26 | // flags to set, and we don't want to code-gen to an unknown soft-float |
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| 27 | // implementation. |
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| 28 | |
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| 29 | typedef du_int fixuint_t; |
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| 30 | #include "fp_fixuint_impl.inc" |
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| 31 | |
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| 32 | COMPILER_RT_ABI du_int __fixunsdfdi(fp_t a) { return __fixuint(a); } |
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| 33 | |
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| 34 | #endif |
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| 35 | |
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| 36 | #if defined(__ARM_EABI__) |
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| 37 | #if defined(COMPILER_RT_ARMHF_TARGET) |
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| 38 | AEABI_RTABI du_int __aeabi_d2ulz(fp_t a) { return __fixunsdfdi(a); } |
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| 39 | #else |
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| 40 | COMPILER_RT_ALIAS(__fixunsdfdi, __aeabi_d2ulz) |
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| 41 | #endif |
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| 42 | #endif |
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| 43 | |
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| 44 | #if defined(__MINGW32__) && defined(__arm__) |
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| 45 | COMPILER_RT_ALIAS(__fixunsdfdi, __dtou64) |
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| 46 | #endif |
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| 47 | |
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