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

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

llvm-svn: 301901

1 files changed, 11 insertions, 0 deletions

diff --git a/llvm/lib/Support/APInt.cpp b/llvm/lib/Support/APInt.cpp
index e01e6f5e79f..b6c8cbee66d 100644
--- a/llvm/lib/Support/APInt.cpp
+++ b/llvm/lib/Support/APInt.cpp
@@ -609,6 +609,17 @@ APInt APInt::getLoBits(unsigned numBits) const {
   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 Count = 0;
   for (int i = getNumWords()-1; i >= 0; --i) {