Head

GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	lib/libcompiler_rt/clzdi2.c	Lines:	0	4	0.0 %
Date:	2017-11-07	Branches:	0	0	0.0 %


/* ===-- clzdi2.c - Implement __clzdi2 -------------------------------------===
 *
 *               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 __clzdi2 for the compiler_rt library.
 *
 * ===----------------------------------------------------------------------===
 */

#include "int_lib.h"

/* Returns: the number of leading 0-bits */

/* Precondition: a != 0 */

COMPILER_RT_ABI si_int
__clzdi2(di_int a)
{
    dwords x;
    x.all = a;
    const si_int f = -(x.s.high == 0);
    return __builtin_clz((x.s.high & ~f) | (x.s.low & f)) +
           (f & ((si_int)(sizeof(si_int) * CHAR_BIT)));
}


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* ===-- clzdi2.c - Implement __clzdi2 -------------------------------------===
2			*
3			* The LLVM Compiler Infrastructure
4			*
5			* This file is dual licensed under the MIT and the University of Illinois Open
6			* Source Licenses. See LICENSE.TXT for details.
7			*
8			* ===----------------------------------------------------------------------===
9			*
10			* This file implements __clzdi2 for the compiler_rt library.
11			*
12			* ===----------------------------------------------------------------------===
13			*/
14
15			#include "int_lib.h"
16
17			/* Returns: the number of leading 0-bits */
18
19			/* Precondition: a != 0 */
20
21			COMPILER_RT_ABI si_int
22			__clzdi2(di_int a)
23			{
24			dwords x;
25			x.all = a;
26			const si_int f = -(x.s.high == 0);
27			return __builtin_clz((x.s.high & ~f) \| (x.s.low & f)) +
28			(f & ((si_int)(sizeof(si_int) * CHAR_BIT)));
29			}