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Cleanups, rename IsPowerOf2 to isPowerOf2

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2662 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2002-05-19 21:19:55 +00:00
parent 4335ad5056
commit 54ea60c69e
2 changed files with 36 additions and 54 deletions
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45
include/Support/MathExtras.h
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@ -1,38 +1,29 @@
// $Id$ -*-c++-*-
//***************************************************************************
// File:
// MathExtras.h
//
// Purpose:
//
// History:
// 8/25/01 - Vikram Adve - Created
//**************************************************************************/
//===-- Support/MathExtras.h - Useful math functions -------------*- C++ -*--=//
//
// This file contains some functions that are useful for math stuff.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_SUPPORT_MATH_EXTRAS_H
#define LLVM_SUPPORT_MATH_EXTRAS_H
#ifndef SUPPORT_MATH_EXTRAS_H
#define SUPPORT_MATH_EXTRAS_H
#include <Support/DataTypes.h>
inline unsigned
log2(uint64_t C)
{
inline unsigned log2(uint64_t C) {
unsigned getPow;
for (getPow = 0; C > 1; getPow++)
C = C >> 1;
for (getPow = 0; C > 1; ++getPow)
C >>= 1;
return getPow;
}
inline bool
IsPowerOf2(int64_t C, unsigned& getPow)
{
if (C < 0)
C = -C;
bool isPowerOf2 = C > 0 && (C == (C & ~(C - 1)));
if (isPowerOf2)
inline bool isPowerOf2(int64_t C, unsigned &getPow) {
if (C < 0) C = -C;
if (C > 0 && C == (C & ~(C - 1))) {
getPow = log2(C);
return isPowerOf2;
return true;
}
return false;
}
#endif /*LLVM_SUPPORT_MATH_EXTRAS_H*/
#endif

45
include/llvm/Support/MathExtras.h
View File

@ -1,38 +1,29 @@
// $Id$ -*-c++-*-
//***************************************************************************
// File:
// MathExtras.h
//
// Purpose:
//
// History:
// 8/25/01 - Vikram Adve - Created
//**************************************************************************/
//===-- Support/MathExtras.h - Useful math functions -------------*- C++ -*--=//
//
// This file contains some functions that are useful for math stuff.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_SUPPORT_MATH_EXTRAS_H
#define LLVM_SUPPORT_MATH_EXTRAS_H
#ifndef SUPPORT_MATH_EXTRAS_H
#define SUPPORT_MATH_EXTRAS_H
#include <Support/DataTypes.h>
inline unsigned
log2(uint64_t C)
{
inline unsigned log2(uint64_t C) {
unsigned getPow;
for (getPow = 0; C > 1; getPow++)
C = C >> 1;
for (getPow = 0; C > 1; ++getPow)
C >>= 1;
return getPow;
}
inline bool
IsPowerOf2(int64_t C, unsigned& getPow)
{
if (C < 0)
C = -C;
bool isPowerOf2 = C > 0 && (C == (C & ~(C - 1)));
if (isPowerOf2)
inline bool isPowerOf2(int64_t C, unsigned &getPow) {
if (C < 0) C = -C;
if (C > 0 && C == (C & ~(C - 1))) {
getPow = log2(C);
return isPowerOf2;
return true;
}
return false;
}
#endif /*LLVM_SUPPORT_MATH_EXTRAS_H*/
#endif