was under accounting for the time that livevariables cost

llvm-svn: 30060

llvm-svn: 30059

llvm-svn: 30058

llvm-svn: 30057

llvm-svn: 30056

Reorder operations to remove duplicated work.
Fix to leave floating-point types out of the optimization.
Add tests to predsimplify.ll for SwitchInst and SelectInst handling.

llvm-svn: 30055

llvm-svn: 30054

llvm-svn: 30051

Restore it, which re-fixes X86/2006-08-21-ExtraMovInst.ll

llvm-svn: 30050

method for joining the live ranges instead of the fully-general one.

llvm-svn: 30049

llvm-svn: 30048

llvm-svn: 30043

Suppose the TokenFactor can reach the Op:

       [Load chain]
           ^
           |
         [Load]
         ^    ^
         |    |
        /      \-
       /         |
      /          [Op]
     /          ^ ^
     |        ..  |
     |       /    |
   [TokenFactor]  |
       ^          |
       |          |
        \        /
         \      /
         [Store]

If we move the Load below the TokenFactor, we would have created a cycle in
the DAG.

llvm-svn: 30040

llvm-svn: 30039

llvm-svn: 30038

parse right.  This fixes TableGen/MultiClass.td

llvm-svn: 30037

llvm-svn: 30036

llvm-svn: 30035

be complete.

llvm-svn: 30034

llvm-svn: 30033

llvm-svn: 30032

allocator. (First draft)

llvm-svn: 30031

llvm-svn: 30030

llvm-svn: 30029

llvm-svn: 30028

This allows you to define multiple definitions with one line, encouraging
more .td file factoring.

llvm-svn: 30027

- Removed warning about clobbered parameter in Bytecode/Reader

llvm-svn: 30026

llvm-svn: 30025

I've been told apple gcc version number is not guaranteed to increase
monotonically. Change the preprocess condition to make it less risky.

The configuration change is done during the middle 10.4 life cycle so we have
to check __APPLE_CC. For future OS X release, we should be able to assume
-fenable-cxa-atexit is the default.

llvm-svn: 30024

llvm-svn: 30023

possible and the target only supports MULHS.

llvm-svn: 30022

llvm-svn: 30021

llvm-svn: 30017

llvm-svn: 30016

need recursion.

llvm-svn: 30015

llvm-svn: 30014

analysis 16% on crafty.

Wrap long lines.

llvm-svn: 30012

llvm-svn: 30011

crafty with and without it).  Removing it speeds up live intervals 6%.

llvm-svn: 30010

corrects missing optimization opportunity removing cases from a switch.

llvm-svn: 30009