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: 35035

llvm-svn: 35033

moves, loads, etc. are recognized.

llvm-svn: 35031

llvm-svn: 35030

- 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: 35005

llvm-svn: 35003

load and stores.

llvm-svn: 35002

llvm-svn: 35001

Mingw32/Cygwin targets. This fixes PR978

llvm-svn: 35000

llvm-svn: 34999

Fix some brittle code. Watch out for cases where register scavenger is pointing to deleted instructions.

llvm-svn: 34998

llvm-svn: 34996

llvm-svn: 34992

llvm-svn: 34990

implementation of getConstantValue().

llvm-svn: 34988

llvm-svn: 34987