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28 lines
879 B
C
28 lines
879 B
C
//===-- lib/subtf3.c - Quad-precision subtraction -----------------*- C -*-===//
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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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// This file implements quad-precision soft-float subtraction with the
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// IEEE-754 default rounding (to nearest, ties to even).
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//
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//===----------------------------------------------------------------------===//
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#define QUAD_PRECISION
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#include "fp_lib.h"
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#if defined(CRT_HAS_128BIT) && defined(CRT_LDBL_128BIT)
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COMPILER_RT_ABI fp_t __addtf3(fp_t a, fp_t b);
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// Subtraction; flip the sign bit of b and add.
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COMPILER_RT_ABI fp_t
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__subtf3(fp_t a, fp_t b) {
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return __addtf3(a, fromRep(toRep(b) ^ signBit));
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}
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#endif
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