diff options
Diffstat (limited to 'lib/Support/APInt.cpp')
| -rw-r--r-- | lib/Support/APInt.cpp | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/lib/Support/APInt.cpp b/lib/Support/APInt.cpp index 9b81fe776a61..38cfaed9d217 100644 --- a/lib/Support/APInt.cpp +++ b/lib/Support/APInt.cpp @@ -1135,7 +1135,7 @@ APInt APInt::lshr(unsigned shiftAmt) const { // If all the bits were shifted out, the result is 0. This avoids issues // with shifting by the size of the integer type, which produces undefined // results. We define these "undefined results" to always be 0. - if (shiftAmt == BitWidth) + if (shiftAmt >= BitWidth) return APInt(BitWidth, 0); // If none of the bits are shifted out, the result is *this. This avoids @@ -1446,7 +1446,7 @@ APInt::mu APInt::magicu(unsigned LeadingZeros) const { APInt signedMin = APInt::getSignedMinValue(d.getBitWidth()); APInt signedMax = APInt::getSignedMaxValue(d.getBitWidth()); - nc = allOnes - (-d).urem(d); + nc = allOnes - (allOnes - d).urem(d); p = d.getBitWidth() - 1; // initialize p q1 = signedMin.udiv(nc); // initialize q1 = 2p/nc r1 = signedMin - q1*nc; // initialize r1 = rem(2p,nc) |