Speed up Function::isIntrinsic() by adding a bit to GlobalValue. NFC
Summary:
Previously isIntrinsic() called getName(). This involves a hashtable
lookup, so is nontrivially expensive. And isIntrinsic() is called
frequently, particularly by dyn_cast<IntrinsicInstr>.
This patch steals a bit of IntID and uses that to store whether or not
getName() starts with "llvm."
Reviewers: bogner, arsenm, joker-eph
Subscribers: sanjoy, llvm-commits
Differential Revision: https://reviews.llvm.org/D22949
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@290691 91177308-0d34-0410-b5e6-96231b3b80d8
3 files changed