visitSExt is an adapted copy of the related visitZExt method, so adapt the comment accordingly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175019
91177308-0d34-0410-b5e6-
96231b3b80d8
}
Instruction *InstCombiner::visitSExt(SExtInst &CI) {
- // If this sign extend is only used by a truncate, let the truncate by
- // eliminated before we try to optimize this zext.
+ // If this sign extend is only used by a truncate, let the truncate be
+ // eliminated before we try to optimize this sext.
if (CI.hasOneUse() && isa<TruncInst>(CI.use_back()))
return 0;