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author | Ed Schouten <ed@FreeBSD.org> | 2011-06-02 20:02:42 +0000 |
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committer | Ed Schouten <ed@FreeBSD.org> | 2011-06-02 20:02:42 +0000 |
commit | b0a04aaa595ba76468e521f12727a872d144d6d0 (patch) | |
tree | 51db692a6c937b68c7180d996af6bb7952b4b55d /lib/subsf3.c | |
parent | f170b6928b38a264ce005e5fa80d428364b6f659 (diff) | |
download | src-b0a04aaa595ba76468e521f12727a872d144d6d0.tar.gz src-b0a04aaa595ba76468e521f12727a872d144d6d0.zip |
Import compiler-rt r132478.vendor/compiler-rt/compiler-rt-r132478
Notes
Notes:
svn path=/vendor/compiler-rt/dist/; revision=222625
svn path=/vendor/compiler-rt/compiler-rt-r132478/; revision=222626; tag=vendor/compiler-rt/compiler-rt-r132478
Diffstat (limited to 'lib/subsf3.c')
-rw-r--r-- | lib/subsf3.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/lib/subsf3.c b/lib/subsf3.c new file mode 100644 index 000000000000..625376acc376 --- /dev/null +++ b/lib/subsf3.c @@ -0,0 +1,29 @@ +//===-- 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). +// +//===----------------------------------------------------------------------===// +#include "abi.h" + +#define SINGLE_PRECISION +#include "fp_lib.h" + +fp_t COMPILER_RT_ABI __addsf3(fp_t a, fp_t b); + +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 */ |