tree def5e86ca64fb718c3d4b6e52e4b6d968e2eb382
parent cbc23f75cd8cd6889fd02f65b63f6c02512460bd
author Dan Gohman <gohman@apple.com> 1245804897 +0000
committer Dan Gohman <gohman@apple.com> 1245804897 +0000

Move the special cases for constants out of getUnknown and into
createSCEV. Also, recognize UndefValue in createSCEV.

Change getIntegerSCEV's comment to avoid mentioning FP types,
and re-implement it in terms of getConstant instead of getUnknown.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74041 91177308-0d34-0410-b5e6-96231b3b80d8