freebsd-dev/contrib/compiler-rt/lib/builtins/subsf3.c
Dimitry Andric f4341a5a66 Update compiler-rt to trunk r224034. This brings a number of new
builtins, and also the various sanitizers.  Support for these will be
added in a later commit.
2015-01-08 19:47:10 +00:00

27 lines
835 B
C

//===-- lib/subsf3.c - Single-precision subtraction ---------------*- C -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file implements single-precision soft-float subtraction with the
// IEEE-754 default rounding (to nearest, ties to even).
//
//===----------------------------------------------------------------------===//
#define SINGLE_PRECISION
#include "fp_lib.h"
ARM_EABI_FNALIAS(fsub, subsf3)
// Subtraction; flip the sign bit of b and add.
COMPILER_RT_ABI fp_t
__subsf3(fp_t a, fp_t b) {
return __addsf3(a, fromRep(toRep(b) ^ signBit));
}
/* FIXME: rsub for ARM EABI */