Author: kremenek
Date: Fri Jan 18 22:23:33 2008
New Revision: 46188
URL: http://llvm.org/viewvc/llvm-project?rev=46188&view=rev
Log:
Added FoldingSet style 'profiling' support for APInt.
Modified:
llvm/trunk/include/llvm/ADT/APInt.h
llvm/trunk/lib/Support/APInt.cpp
Modified: llvm/trunk/include/llvm/ADT/APInt.h
URL:
http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/ADT/APInt.h?rev=46188&r1=46187&r2=46188&view=diff
==============================================================================
--- llvm/trunk/include/llvm/ADT/APInt.h (original)
+++ llvm/trunk/include/llvm/ADT/APInt.h Fri Jan 18 22:23:33 2008
@@ -24,6 +24,7 @@
namespace llvm {
class Serializer;
class Deserializer;
+ class FoldingSetNodeID;
/* An unsigned host type used as a single part of a multi-part
bignum. */
@@ -210,6 +211,10 @@
/// for object deserialization (pair this with the static method Read).
explicit APInt() : BitWidth(1) {}
+ /// Profile - Used to insert APInt objects, or objects that contain APInt
+ /// objects, into FoldingSets.
+ void Profile(FoldingSetNodeID& ID) const;
+
/// @brief Used by the Bitcode serializer to emit APInts to Bitcode.
void Emit(Serializer& S) const;
Modified: llvm/trunk/lib/Support/APInt.cpp
URL:
http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Support/APInt.cpp?rev=46188&r1=46187&r2=46188&view=diff
==============================================================================
--- llvm/trunk/lib/Support/APInt.cpp (original)
+++ llvm/trunk/lib/Support/APInt.cpp Fri Jan 18 22:23:33 2008
@@ -14,6 +14,7 @@
#define DEBUG_TYPE "apint"
#include "llvm/ADT/APInt.h"
+#include "llvm/ADT/FoldingSet.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/MathExtras.h"
#include <math.h>
@@ -24,7 +25,6 @@
using namespace llvm;
-
/// This enumeration just provides for internal constants used in this
/// translation unit.
enum {
@@ -165,6 +165,18 @@
return clearUnusedBits();
}
+/// Profile - This method 'profiles' an APInt for use with FoldingSet.
+void APInt::Profile(FoldingSetNodeID& ID) const {
+ if (isSingleWord()) {
+ ID.AddInteger(VAL);
+ return;
+ }
+
+ uint32_t NumWords = getNumWords();
+ for (unsigned i = 0; i < NumWords; ++i)
+ ID.AddInteger(pVal[i]);
+}
+
/// add_1 - This function adds a single "digit" integer, y, to the multiple
/// "digit" integer array, x[]. x[] is modified to reflect the addition and
/// 1 is returned if there is a carry out, otherwise 0 is returned.
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