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silence some annoying gcc 4.3 warnings

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36680 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2007-05-03 18:15:36 +00:00
parent 18a4c74136
commit a5ae15ecb7
1 changed files with 10 additions and 7 deletions
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17
lib/Support/APInt.cpp
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@ -1066,11 +1066,12 @@ APInt APInt::ashr(uint32_t shiftAmt) const {
// If all the bits were shifted out, the result is, technically, undefined.
// We return -1 if it was negative, 0 otherwise. We check this early to avoid
// issues in the algorithm below.
if (shiftAmt == BitWidth)
if (shiftAmt == BitWidth) {
if (isNegative())
return APInt(BitWidth, -1ULL);
else
return APInt(BitWidth, 0);
}
// Create some space for the result.
uint64_t * val = new uint64_t[getNumWords()];
@ -1108,7 +1109,7 @@ APInt APInt::ashr(uint32_t shiftAmt) const {
// Deal with sign extenstion in the break word, and possibly the word before
// it.
if (isNegative())
if (isNegative()) {
if (wordShift > bitsInWord) {
if (breakWord > 0)
val[breakWord-1] |=
@ -1116,6 +1117,7 @@ APInt APInt::ashr(uint32_t shiftAmt) const {
val[breakWord] |= ~0ULL;
} else
val[breakWord] |= (~0ULL << (bitsInWord - wordShift));
}
}
// Remaining words are 0 or -1, just assign them.
@ -1128,11 +1130,12 @@ APInt APInt::ashr(uint32_t shiftAmt) const {
/// Logical right-shift this APInt by shiftAmt.
/// @brief Logical right-shift function.
APInt APInt::lshr(uint32_t shiftAmt) const {
if (isSingleWord())
if (isSingleWord()) {
if (shiftAmt == BitWidth)
return APInt(BitWidth, 0);
else
return APInt(BitWidth, this->VAL >> shiftAmt);
}
// 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
@ -1760,10 +1763,10 @@ void APInt::fromString(uint32_t numbits, const char *str, uint32_t slen,
bool isNeg = str[0] == '-';
if (isNeg)
str++, slen--;
assert(slen <= numbits || radix != 2 && "Insufficient bit width");
assert(slen*3 <= numbits || radix != 8 && "Insufficient bit width");
assert(slen*4 <= numbits || radix != 16 && "Insufficient bit width");
assert((slen*64)/22 <= numbits || radix != 10 && "Insufficient bit width");
assert((slen <= numbits || radix != 2) && "Insufficient bit width");
assert((slen*3 <= numbits || radix != 8) && "Insufficient bit width");
assert((slen*4 <= numbits || radix != 16) && "Insufficient bit width");
assert(((slen*64)/22 <= numbits || radix != 10) && "Insufficient bit width");
// Allocate memory
if (!isSingleWord())