alive in one of the successor block. Do not add it to the kill list.

llvm-svn: 35041

llvm-svn: 35040

llvm-svn: 35039

llvm-svn: 35038

llvm-svn: 35037

llvm-svn: 35036

llvm-svn: 35035

llvm-svn: 35034

llvm-svn: 35033

llvm-svn: 35032

moves, loads, etc. are recognized.

llvm-svn: 35031

llvm-svn: 35030

llvm-svn: 35029

- Check Immutableness before searching PreservedSet.
- Avoid unnecessary traversal while setting Last User.

llvm-svn: 35028

llvm-svn: 35027

llvm-svn: 35026

llvm-svn: 35025

llvm-svn: 35024

do the correctness/performance analysis testing.

llvm-svn: 35023

llvm-svn: 35022

llvm-svn: 35021

llvm-svn: 35020

Provide an APIntified version of MaskedValueIsZero. This will (temporarily)
cause a "defined but not used" message from the compiler. It will be used
in the next patch in this series.

Patch by Sheng Zhou.

llvm-svn: 35019

Add a new ComputeMaskedBits function that is APIntified. We'll slowly
convert things over to use this version. When its all done, we'll remove
the existing version.

llvm-svn: 35018

sections.

llvm-svn: 35017

llvm-svn: 35016

llvm-svn: 35015

llvm-svn: 35014

llvm-svn: 35010

llvm-svn: 35009

zext/sext/aext stuff.

llvm-svn: 35008

llvm-svn: 35007

llvm-svn: 35006

llvm-svn: 35005

llvm-svn: 35004

llvm-svn: 35003

load and stores.

llvm-svn: 35002

llvm-svn: 35001

Mingw32/Cygwin targets. This fixes PR978

llvm-svn: 35000

llvm-svn: 34999