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random cleanup

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57383 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2008-10-11 22:06:50 +00:00
parent 43778b3859
commit 71f95b8531
1 changed files with 1 additions and 2 deletions
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3
include/llvm/ADT/APInt.h
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@ -458,7 +458,6 @@ public:
/// @param numBits the bitwidth of the result
/// @param loBitsSet the number of low-order bits set in the result.
/// @brief Get a value with low bits set
// XXX why isn't this inlining?
static APInt getLowBitsSet(uint32_t numBits, uint32_t loBitsSet) {
assert(loBitsSet <= numBits && "Too many bits to set!");
// Handle a degenerate case, to avoid shifting by word size
@ -466,7 +465,7 @@ public:
return APInt(numBits, 0);
if (loBitsSet == APINT_BITS_PER_WORD)
return APInt(numBits, -1ULL);
// For small values, return quickly
// For small values, return quickly.
if (numBits < APINT_BITS_PER_WORD)
return APInt(numBits, (1ULL << loBitsSet) - 1);
return (~APInt(numBits, 0)).lshr(numBits - loBitsSet);