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[APInt] Call the slow case counting methods directly in isMask/isShiftedMask. We already handled the single word case. NFC

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llvm-svn: 300823
This commit is contained in:
Craig Topper 2017-04-20 06:04:01 +00:00
parent 95efceaf4f
commit 475cc17252
1 changed files with 8 additions and 6 deletions
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14
include/llvm/ADT/APInt.h
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@ -443,8 +443,9 @@ public:
assert(numBits <= BitWidth && "numBits out of range");
if (isSingleWord())
return VAL == (UINT64_MAX >> (APINT_BITS_PER_WORD - numBits));
unsigned Ones = countTrailingOnes();
return (numBits == Ones) && ((Ones + countLeadingZeros()) == BitWidth);
unsigned Ones = countTrailingOnesSlowCase();
return (numBits == Ones) &&
((Ones + countLeadingZerosSlowCase()) == BitWidth);
}
/// \returns true if this APInt is a non-empty sequence of ones starting at
@ -453,8 +454,8 @@ public:
bool isMask() const {
if (isSingleWord())
return isMask_64(VAL);
unsigned Ones = countTrailingOnes();
return (Ones > 0) && ((Ones + countLeadingZeros()) == BitWidth);
unsigned Ones = countTrailingOnesSlowCase();
return (Ones > 0) && ((Ones + countLeadingZerosSlowCase()) == BitWidth);
}
/// \brief Return true if this APInt value contains a sequence of ones with
@ -462,8 +463,9 @@ public:
bool isShiftedMask() const {
if (isSingleWord())
return isShiftedMask_64(VAL);
unsigned Ones = countPopulation();
return (Ones + countTrailingZeros() + countLeadingZeros()) == BitWidth;
unsigned Ones = countPopulationSlowCase();
unsigned LeadZ = countLeadingZerosSlowCase();
return (Ones + LeadZ + countTrailingZeros()) == BitWidth;
}
/// @}