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[APInt] Move APInt::getSplat out of line. 

I think this method is probably too complex to be inlined.

llvm-svn: 301901
This commit is contained in:
Craig Topper 2017-05-02 06:32:27 +00:00
parent 1e91919ac1
commit 9881bd9c1d
2 changed files with 12 additions and 9 deletions
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10
llvm/include/llvm/ADT/APInt.h
View File

@ -617,15 +617,7 @@ public:
} }
/// \brief Return a value containing V broadcasted over NewLen bits. /// \brief Return a value containing V broadcasted over NewLen bits.
static APInt getSplat(unsigned NewLen, const APInt &V) { static APInt getSplat(unsigned NewLen, const APInt &V);
assert(NewLen >= V.getBitWidth() && "Can't splat to smaller bit width!");
APInt Val = V.zextOrSelf(NewLen);
for (unsigned I = V.getBitWidth(); I < NewLen; I <<= 1)
Val |= Val << I;
return Val;
}
/// \brief Determine if two APInts have the same value, after zero-extending /// \brief Determine if two APInts have the same value, after zero-extending
/// one of them (if needed!) to ensure that the bit-widths match. /// one of them (if needed!) to ensure that the bit-widths match.

11
llvm/lib/Support/APInt.cpp
View File

@ -609,6 +609,17 @@ APInt APInt::getLoBits(unsigned numBits) const {
return Result; return Result;
} }
/// Return a value containing V broadcasted over NewLen bits.
APInt APInt::getSplat(unsigned NewLen, const APInt &V) {
assert(NewLen >= V.getBitWidth() && "Can't splat to smaller bit width!");
APInt Val = V.zextOrSelf(NewLen);
for (unsigned I = V.getBitWidth(); I < NewLen; I <<= 1)
Val |= Val << I;
return Val;
}
unsigned APInt::countLeadingZerosSlowCase() const { unsigned APInt::countLeadingZerosSlowCase() const {
unsigned Count = 0; unsigned Count = 0;
for (int i = getNumWords()-1; i >= 0; --i) { for (int i = getNumWords()-1; i >= 0; --i) {