57 lines
1.5 KiB
C
57 lines
1.5 KiB
C
/* clang-format off */
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/* ===-- fixunssfdi.c - Implement __fixunssfdi -----------------------------===
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*
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* The LLVM Compiler Infrastructure
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*
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* This file is dual licensed under the MIT and the University of Illinois Open
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* Source Licenses. See LICENSE.TXT for details.
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*
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* ===----------------------------------------------------------------------===
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*/
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STATIC_YOINK("huge_compiler_rt_license");
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#define SINGLE_PRECISION
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#include "third_party/compiler_rt/fp_lib.inc"
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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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__fixunssfdi(float a)
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{
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if (a <= 0.0f) return 0;
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double da = a;
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su_int high = da / 4294967296.f; /* da / 0x1p32f; */
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su_int low = da - (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 "third_party/compiler_rt/fp_fixuint_impl.inc"
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COMPILER_RT_ABI du_int
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__fixunssfdi(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_f2ulz(fp_t a) {
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return __fixunssfdi(a);
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}
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#else
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AEABI_RTABI du_int __aeabi_f2ulz(fp_t a) COMPILER_RT_ALIAS(__fixunssfdi);
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#endif
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#endif
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