diff options
| -rw-r--r-- | lib/Support/APInt.cpp | 24 |
1 files changed, 12 insertions, 12 deletions
diff --git a/lib/Support/APInt.cpp b/lib/Support/APInt.cpp index e7b7c1f..aa6cfa7 100644 --- a/lib/Support/APInt.cpp +++ b/lib/Support/APInt.cpp @@ -2029,22 +2029,22 @@ namespace { return ~(integerPart) 0 >> (integerPartWidth - bits); } - /* Returns the value of the lower nibble of PART. */ + /* Returns the value of the lower half of PART. */ inline integerPart lowHalf(integerPart part) { return part & lowBitMask(integerPartWidth / 2); } - /* Returns the value of the upper nibble of PART. */ + /* Returns the value of the upper half of PART. */ inline integerPart highHalf(integerPart part) { return part >> (integerPartWidth / 2); } - /* Returns the bit number of the most significant bit of a part. If - the input number has no bits set -1U is returned. */ + /* Returns the bit number of the most significant set bit of a part. + If the input number has no bits set -1U is returned. */ unsigned int partMSB(integerPart value) { @@ -2068,8 +2068,8 @@ namespace { return msb; } - /* Returns the bit number of the least significant bit of a part. - If the input number has no bits set -1U is returned. */ + /* Returns the bit number of the least significant set bit of a + part. If the input number has no bits set -1U is returned. */ unsigned int partLSB(integerPart value) { @@ -2144,8 +2144,8 @@ APInt::tcSetBit(integerPart *parts, unsigned int bit) parts[bit / integerPartWidth] |= (integerPart) 1 << (bit % integerPartWidth); } -/* Returns the bit number of the least significant bit of a number. - If the input number has no bits set -1U is returned. */ +/* Returns the bit number of the least significant set bit of a + number. If the input number has no bits set -1U is returned. */ unsigned int APInt::tcLSB(const integerPart *parts, unsigned int n) { @@ -2162,8 +2162,8 @@ APInt::tcLSB(const integerPart *parts, unsigned int n) return -1U; } -/* Returns the bit number of the most significant bit of a number. If - the input number has no bits set -1U is returned. */ +/* Returns the bit number of the most significant set bit of a number. + If the input number has no bits set -1U is returned. */ unsigned int APInt::tcMSB(const integerPart *parts, unsigned int n) { @@ -2240,8 +2240,8 @@ APInt::tcNegate(integerPart *dst, unsigned int parts) tcIncrement(dst, parts); } -/* DST += SRC * MULTIPLIER + PART if add is true - DST = SRC * MULTIPLIER + PART if add is false +/* DST += SRC * MULTIPLIER + CARRY if add is true + DST = SRC * MULTIPLIER + CARRY if add is false Requires 0 <= DSTPARTS <= SRCPARTS + 1. If DST overlaps SRC they must start at the same point, i.e. DST == SRC. |