[Split GEP] handle trunc() in separate-const-offset-from-gep pass.
Let separate-const-offset-from-gep pass handle trunc() when it calculates
constant offset relative to base. The pass itself may insert trunc()
instructions when it canonicalises array indices to pointer-size integers
and needs to handle trunc() in order to evaluate the offset.
Differential Revision: https://reviews.llvm.org/D46732
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@332142 91177308-0d34-0410-b5e6-96231b3b80d8
3 files changed