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-rw-r--r--include/llvm/ADT/APInt.h21
1 files changed, 13 insertions, 8 deletions
diff --git a/include/llvm/ADT/APInt.h b/include/llvm/ADT/APInt.h
index 025397d9ce450..36d8159d21ba0 100644
--- a/include/llvm/ADT/APInt.h
+++ b/include/llvm/ADT/APInt.h
@@ -25,9 +25,7 @@
#include <string>
namespace llvm {
-class Deserializer;
class FoldingSetNodeID;
-class Serializer;
class StringRef;
class hash_code;
class raw_ostream;
@@ -409,6 +407,13 @@ public:
: getZExtValue();
}
+ /// \brief Check if the APInt consists of a repeated bit pattern.
+ ///
+ /// e.g. 0x01010101 satisfies isSplat(8).
+ /// \param SplatSizeInBits The size of the pattern in bits. Must divide bit
+ /// width without remainder.
+ bool isSplat(unsigned SplatSizeInBits) const;
+
/// @}
/// \name Value Generators
/// @{
@@ -1356,7 +1361,7 @@ public:
/// \brief Count the number of leading one bits.
///
- /// This function is an APInt version of the countLeadingOnes_{32,64}
+ /// This function is an APInt version of the countLeadingOnes
/// functions in MathExtras.h. It counts the number of ones from the most
/// significant bit to the first zero bit.
///
@@ -1372,7 +1377,7 @@ public:
/// \brief Count the number of trailing zero bits.
///
- /// This function is an APInt version of the countTrailingZeros_{32,64}
+ /// This function is an APInt version of the countTrailingZeros
/// functions in MathExtras.h. It counts the number of zeros from the least
/// significant bit to the first set bit.
///
@@ -1382,7 +1387,7 @@ public:
/// \brief Count the number of trailing one bits.
///
- /// This function is an APInt version of the countTrailingOnes_{32,64}
+ /// This function is an APInt version of the countTrailingOnes
/// functions in MathExtras.h. It counts the number of ones from the least
/// significant bit to the first zero bit.
///
@@ -1390,19 +1395,19 @@ public:
/// of ones from the least significant bit to the first zero bit.
unsigned countTrailingOnes() const {
if (isSingleWord())
- return CountTrailingOnes_64(VAL);
+ return llvm::countTrailingOnes(VAL);
return countTrailingOnesSlowCase();
}
/// \brief Count the number of bits set.
///
- /// This function is an APInt version of the countPopulation_{32,64} functions
+ /// This function is an APInt version of the countPopulation functions
/// in MathExtras.h. It counts the number of 1 bits in the APInt value.
///
/// \returns 0 if the value is zero, otherwise returns the number of set bits.
unsigned countPopulation() const {
if (isSingleWord())
- return CountPopulation_64(VAL);
+ return llvm::countPopulation(VAL);
return countPopulationSlowCase();
}