Implement LiveVariables.h change

llvm-svn: 22994

adjust to new live variables interface

llvm-svn: 22992

allow a virtual register to be associated with live-in values.

llvm-svn: 21927

Remove trailing whitespace

llvm-svn: 21420

Consider the livein/out set for a function, allowing targets to not have to
use ugly imp_def/imp_uses for arguments and return values.

llvm-svn: 21180

Just in case, handle something that is both a use and a def.

llvm-svn: 19696

When an instruction moves, make sure to update the VarInfo::Kills list as
well as all of teh other stuff in livevar. This fixes the compiler crash
on fourinarow last night.

llvm-svn: 19695

Do not use variable sized arrays in C++, they are non-portable. Patch
contributed by Morten Ofstad

llvm-svn: 17217

Changes For Bug 352
Move include/Config and include/Support into include/llvm/Config,
include/llvm/ADT and include/llvm/Support. From here on out, all LLVM
public header files must be under include/l

Changes For Bug 352
Move include/Config and include/Support into include/llvm/Config,
include/llvm/ADT and include/llvm/Support. From here on out, all LLVM
public header files must be under include/llvm/.

llvm-svn: 16137

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Give a better assertion if we see a use before a def.

llvm-svn: 16135

Remove dead code.

llvm-svn: 16077

Use newly added API in MRegisterInfo and don't expose the allocatable
register set anymore. Its users now use the MRegisterInfo API.

llvm-svn: 16061

There is no need to store the MBB along with the MI any more, we can now
ask instructions for their parent.

llvm-svn: 14998

Simplify the interface to LiveVariables::addVirtualRegister(Killed|Dead)

llvm-svn: 14997

Remove the DefBlock element of VarInfo. DefBlock is always DefInst->getParent()

llvm-svn: 14996

Add checks to ensure that there are no unreachable blocks in the function

llvm-svn: 14725

Now that MachineFunction/MachineBasicBlock keep a mapping of blocks to ID #'s
use them instead of a local LiveVariables numbering

llvm-svn: 14523

Start using MBB numbers directly instead of going through the live variables
map.

llvm-svn: 14518

Instead of building a private numbering of MBB's use brg's nifty auto-numbering.
Also convert df_iterator -> df_ext_iterator for subsequent stuff I'm doing.

llvm-svn: 14517

Convert tabs to spaces.

llvm-svn: 14373

Adjust to new TargetMachine interface

llvm-svn: 13956

Patch to fix PR337. Make sure to mark all aliased physical registers as used
when we see a read of a register. This is important in cases like:

AL = ...
AH = ...

= AX

The read of AX must make

Patch to fix PR337. Make sure to mark all aliased physical registers as used
when we see a read of a register. This is important in cases like:

AL = ...
AH = ...

= AX

The read of AX must make both the AL and AH defs live until the use.

llvm-svn: 13444

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Stop LiveVariables from using BasicBlocks as part of the mapping, instead
use MachineBasicBlocks. To do this, we traverse the Machine CFG instead of
the LLVM CFG, which is also *MUCH* more efficient

Stop LiveVariables from using BasicBlocks as part of the mapping, instead
use MachineBasicBlocks. To do this, we traverse the Machine CFG instead of
the LLVM CFG, which is also *MUCH* more efficient by having fewer levels of
indirections and mappings.

llvm-svn: 13301

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Correctly update LiveVariables when an instruction changes

llvm-svn: 12561

Add an assert

llvm-svn: 12010