use the valuetracking isPowerOfTwo function, which is more powerful than checking
for a constant directly.  Thanks to Duncan for pointing this out.

llvm-svn: 131885
1 file changed
tree: c811f86f08448ab17f0f294656e2d54bd735a552
  1. clang/
  2. compiler-rt/
  3. debuginfo-tests/
  4. libcxx/
  5. libcxxabi/
  6. lldb/
  7. llvm/
  8. polly/