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Correct the order of the arguments in the examples in the comments

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for APInt::getBitsSet. And fix an off-by-one bug in "wrapping" mode.

llvm-svn: 46978
This commit is contained in:
Dan Gohman 2008-02-11 23:45:14 +00:00
parent dbef529071
commit b7bbe43ad3
1 changed files with 3 additions and 3 deletions
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6
include/llvm/ADT/APInt.h
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@ -371,9 +371,9 @@ public:
/// Constructs an APInt value that has a contiguous range of bits set. The
/// bits from loBit to hiBit will be set. All other bits will be zero. For
/// example, with parameters(32, 15, 0) you would get 0x0000FFFF. If hiBit is
/// example, with parameters(32, 0, 15) you would get 0x0000FFFF. If hiBit is
/// less than loBit then the set bits "wrap". For example, with
/// parameters (32, 3, 28), you would get 0xF000000F.
/// parameters (32, 28, 3), you would get 0xF000000F.
/// @param numBits the intended bit width of the result
/// @param loBit the index of the lowest bit set.
/// @param hiBit the index of the highest bit set.
@ -384,7 +384,7 @@ public:
assert(loBit < numBits && "loBit out of range");
if (hiBit < loBit)
return getLowBitsSet(numBits, hiBit+1) |
getHighBitsSet(numBits, numBits-loBit+1);
getHighBitsSet(numBits, numBits-loBit);
return getLowBitsSet(numBits, hiBit-loBit+1).shl(loBit);
}