forked from OSchip/llvm-project
33 lines
1006 B
C
33 lines
1006 B
C
//===-- lib/subsf3.c - Single-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 single-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 SINGLE_PRECISION
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#include "fp_lib.h"
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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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__subsf3(fp_t a, fp_t b) {
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return __addsf3(a, fromRep(toRep(b) ^ signBit));
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}
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#if defined(__ARM_EABI__)
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#if defined(COMPILER_RT_ARMHF_TARGET)
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AEABI_RTABI fp_t __aeabi_fsub(fp_t a, fp_t b) {
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return __subsf3(a, b);
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}
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#else
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AEABI_RTABI fp_t __aeabi_fsub(fp_t a, fp_t b) COMPILER_RT_ALIAS(__subsf3);
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#endif
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#endif
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