[InstCombine] Fix two asserts that were accidentally checking that an APInt pointer is non-zero instead of checking that the APInt self is non-zero.

I believe this code used to use APInt references which would have worked. But then they were changed to pointers to allow m_APInt to be used.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@304875 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed