diff options
Diffstat (limited to 'lib/libcompiler_rt/floatsidf.c')
-rw-r--r-- | lib/libcompiler_rt/floatsidf.c | 61 |
1 files changed, 0 insertions, 61 deletions
diff --git a/lib/libcompiler_rt/floatsidf.c b/lib/libcompiler_rt/floatsidf.c deleted file mode 100644 index fe051123ce7..00000000000 --- a/lib/libcompiler_rt/floatsidf.c +++ /dev/null @@ -1,61 +0,0 @@ -//===-- lib/floatsidf.c - integer -> double-precision 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 integer to double-precision conversion for the -// compiler-rt library in the IEEE-754 default round-to-nearest, ties-to-even -// mode. -// -//===----------------------------------------------------------------------===// - -#define DOUBLE_PRECISION -#include "fp_lib.h" - -#include "int_lib.h" - -COMPILER_RT_ABI fp_t -__floatsidf(int a) { - - const int aWidth = sizeof a * CHAR_BIT; - - // Handle zero as a special case to protect clz - if (a == 0) - return fromRep(0); - - // All other cases begin by extracting the sign and absolute value of a - rep_t sign = 0; - if (a < 0) { - sign = signBit; - a = -a; - } - - // Exponent of (fp_t)a is the width of abs(a). - const int exponent = (aWidth - 1) - __builtin_clz(a); - rep_t result; - - // Shift a into the significand field and clear the implicit bit. Extra - // cast to unsigned int is necessary to get the correct behavior for - // the input INT_MIN. - const int shift = significandBits - exponent; - result = (rep_t)(unsigned int)a << shift ^ implicitBit; - - // Insert the exponent - result += (rep_t)(exponent + exponentBias) << significandBits; - // Insert the sign bit and return - return fromRep(result | sign); -} - -#if defined(__ARM_EABI__) -#if defined(COMPILER_RT_ARMHF_TARGET) -AEABI_RTABI fp_t __aeabi_i2d(int a) { - return __floatsidf(a); -} -#else -AEABI_RTABI fp_t __aeabi_i2d(int a) COMPILER_RT_ALIAS(__floatsidf); -#endif -#endif |