0ece074de9
This version of libcompiler_rt adds support for __mulo[sdt]i4(), which computes a multiply and its overflow flag. There are also a lot of cleanup fixes to headers that don't really affect us. Updating to this revision should make it a bit easier to contribute changes back to the LLVM developers.
29 lines
884 B
C
29 lines
884 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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fp_t COMPILER_RT_ABI __addsf3(fp_t a, fp_t b);
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ARM_EABI_FNALIAS(fsub, subsf3);
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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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/* FIXME: rsub for ARM EABI */
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