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f3206d6278
This adds hard-float implementation for the following builtins: * __fixdfdi() * __fixsfdi() * __fixunsdfdi() * __fixunssfdi() The soft-float implementation does never raise floating point exceptions, which doesn't allow clients to detect floating point conversion errors. I must mention that I had to refer to libgcc's implementation to write these functions. Related unit-tests of compiler-rt passed with these changes. Patch was somewhat out-dated, so was updated locally without any functional changes. Differential Revision: http://reviews.llvm.org/D5376 llvm-svn: 234148
48 lines
1.1 KiB
C
48 lines
1.1 KiB
C
/* ===-- fixsfdi.c - Implement __fixsfdi -----------------------------------===
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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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#define SINGLE_PRECISION
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#include "fp_lib.h"
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ARM_EABI_FNALIAS(f2lz, fixsfdi)
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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 __fixunssfdi(float a);
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COMPILER_RT_ABI di_int
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__fixsfdi(float a)
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{
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if (a < 0.0f) {
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return -__fixunssfdi(-a);
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}
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return __fixunssfdi(a);
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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 di_int fixint_t;
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typedef du_int fixuint_t;
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#include "fp_fixint_impl.inc"
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COMPILER_RT_ABI di_int
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__fixsfdi(fp_t a) {
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return __fixint(a);
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}
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#endif
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