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Diffstat (limited to 'lib/builtins/floatunsisf.c')
-rw-r--r--lib/builtins/floatunsisf.c69
1 files changed, 34 insertions, 35 deletions
diff --git a/lib/builtins/floatunsisf.c b/lib/builtins/floatunsisf.c
index 29525ccedbbe..33a1b5ae2a63 100644
--- a/lib/builtins/floatunsisf.c
+++ b/lib/builtins/floatunsisf.c
@@ -1,9 +1,8 @@
//===-- lib/floatunsisf.c - uint -> single-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.
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
@@ -18,41 +17,41 @@
#include "int_lib.h"
-COMPILER_RT_ABI fp_t
-__floatunsisf(unsigned int a) {
-
- const int aWidth = sizeof a * CHAR_BIT;
-
- // Handle zero as a special case to protect clz
- if (a == 0) return fromRep(0);
-
- // 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, rounding if it is a right-shift
- if (exponent <= significandBits) {
- const int shift = significandBits - exponent;
- result = (rep_t)a << shift ^ implicitBit;
- } else {
- const int shift = exponent - significandBits;
- result = (rep_t)a >> shift ^ implicitBit;
- rep_t round = (rep_t)a << (typeWidth - shift);
- if (round > signBit) result++;
- if (round == signBit) result += result & 1;
- }
-
- // Insert the exponent
- result += (rep_t)(exponent + exponentBias) << significandBits;
- return fromRep(result);
+COMPILER_RT_ABI fp_t __floatunsisf(unsigned int a) {
+
+ const int aWidth = sizeof a * CHAR_BIT;
+
+ // Handle zero as a special case to protect clz
+ if (a == 0)
+ return fromRep(0);
+
+ // 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, rounding if it is a right-shift
+ if (exponent <= significandBits) {
+ const int shift = significandBits - exponent;
+ result = (rep_t)a << shift ^ implicitBit;
+ } else {
+ const int shift = exponent - significandBits;
+ result = (rep_t)a >> shift ^ implicitBit;
+ rep_t round = (rep_t)a << (typeWidth - shift);
+ if (round > signBit)
+ result++;
+ if (round == signBit)
+ result += result & 1;
+ }
+
+ // Insert the exponent
+ result += (rep_t)(exponent + exponentBias) << significandBits;
+ return fromRep(result);
}
#if defined(__ARM_EABI__)
#if defined(COMPILER_RT_ARMHF_TARGET)
-AEABI_RTABI fp_t __aeabi_ui2f(unsigned int a) {
- return __floatunsisf(a);
-}
+AEABI_RTABI fp_t __aeabi_ui2f(unsigned int a) { return __floatunsisf(a); }
#else
-AEABI_RTABI fp_t __aeabi_ui2f(unsigned int a) COMPILER_RT_ALIAS(__floatunsisf);
+COMPILER_RT_ALIAS(__floatunsisf, __aeabi_ui2f)
#endif
#endif