llvm-svn: 20836

memory usage in the TD pass for 254.gap from 31.3MB to 3.9MB.

llvm-svn: 20834

llvm-svn: 20833

handled correctly for floating point arguments, or more than 8 arguemnts.
This does however, allow hello world to run.

llvm-svn: 20832

This prevents crashes on some programs when using -ds-aa -licm.

llvm-svn: 20831

Transforms/LICM/2005-03-24-LICM-Aggregate-Crash.ll

llvm-svn: 20830

llvm-svn: 20829

a pointer value out of a loop causing it to be duplicated.

llvm-svn: 20828

llvm-svn: 20827

  1. Instead of copying Local graphs to the BU graphs to start with, use
     spliceFrom to do the job (which is constant time in this case).  On
     176.gcc, this chops off .17s from the bu pass.
  2. When building SCC graphs, simplify the logic and use spliceFrom to
     do the heavy lifting, instead of cloneInto/delete.  This slices
     another .14s off 176.gcc.

llvm-svn: 20826

llvm-svn: 20825

one graph and plops it into another, without breaking a sweat.

llvm-svn: 20824

llvm-svn: 20823

1. void returns
2. multiplies
3. calls

llvm-svn: 20822

llvm-svn: 20821

based approach to find globals and call sites that need to be copied.  This
speeds up the BU pass on 176.gcc from 22s back up to 2.3s.  Not as good
as 1.5s, but at least it's correct :)

llvm-svn: 20820

bu pass for 176.gcc

llvm-svn: 20818

something correct. Unfortunately this takes 176.gcc's BU phase back
up to 29s from 1.5.  This fixes DSGraph/2005-03-24-Global-Arg-Alias.ll

llvm-svn: 20817

llvm-svn: 20816

llvm-svn: 20815

llvm-svn: 20814

llvm-svn: 20813

llvm-svn: 20812

1) dynamic stack alloc
2) loads
3) shifts
4) subtract
5) immediate form of add, and, or, xor
6) change flag from -pattern-isel to -enable-ppc-pattern-isel

Remove dead arguments from getGlobalBaseReg in the simple ISel

llvm-svn: 20810

llvm-svn: 20809

llvm-svn: 20808

llvm-svn: 20807

be brought up to parity with the current simple ISel in the coming days.
Currently, -pattern-isel is required to trigger it.

llvm-svn: 20805

request.

llvm-svn: 20804

when using ds-aa

llvm-svn: 20802

llvm-svn: 20801

llvm-svn: 20800

llvm-svn: 20799

llvm-svn: 20797

decide, don't just immediately give up.

This implements GlobalsModRef/chaining-analysis.ll

llvm-svn: 20796

llvm-svn: 20795

llvm-svn: 20794

llvm-svn: 20793

llvm-svn: 20792

llvm-svn: 20791