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-rw-r--r--lib/fixdfsi.c49
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diff --git a/lib/fixdfsi.c b/lib/fixdfsi.c
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index 614d032a4e146..0000000000000
--- a/lib/fixdfsi.c
+++ /dev/null
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-//===-- lib/fixdfsi.c - Double-precision -> integer conversion ----*- 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 double-precision to integer conversion for the
-// compiler-rt library. No range checking is performed; the behavior of this
-// conversion is undefined for out of range values in the C standard.
-//
-//===----------------------------------------------------------------------===//
-
-#define DOUBLE_PRECISION
-#include "fp_lib.h"
-
-#include "int_lib.h"
-
-ARM_EABI_FNALIAS(d2iz, fixdfsi)
-
-int __fixdfsi(fp_t a) {
-
- // Break a into sign, exponent, significand
- const rep_t aRep = toRep(a);
- const rep_t aAbs = aRep & absMask;
- const int sign = aRep & signBit ? -1 : 1;
- const int exponent = (aAbs >> significandBits) - exponentBias;
- const rep_t significand = (aAbs & significandMask) | implicitBit;
-
- // If 0 < exponent < significandBits, right shift to get the result.
- if ((unsigned int)exponent < significandBits) {
- return sign * (significand >> (significandBits - exponent));
- }
-
- // If exponent is negative, the result is zero.
- else if (exponent < 0) {
- return 0;
- }
-
- // If significandBits < exponent, left shift to get the result. This shift
- // may end up being larger than the type width, which incurs undefined
- // behavior, but the conversion itself is undefined in that case, so
- // whatever the compiler decides to do is fine.
- else {
- return sign * (significand << (exponent - significandBits));
- }
-}