another Value) weren't being found by findProperties.

This fixes predsimplify.ll test6, a missed optimization opportunity.

llvm-svn: 29991

llvm-svn: 29989

Also, the assert could never fire due to || instead of &&.

llvm-svn: 29977

llvm-svn: 29971

If a branch's condition has become a ConstantBool, simplify it immediately.
Removing the edge saves work and exposes up more optimization opportunities
in the pass.
Add support for SelectInst.

llvm-svn: 29970

number of copies, potentially defining live ranges that appear to have
differing value numbers that become identical when coallsced.  Among other
things, this fixes CodeGen/X86/shift-coalesce.ll and PR687.

llvm-svn: 29968

exit blocks. The output is dependent on addresses of basic block.

Add and use Loop::getUniqueExitBlocks.

llvm-svn: 29966

llvm-svn: 29965

llvm-svn: 29962

or vector result. X86 does not have load/mod/store variants of those
instructions.

llvm-svn: 29957

- Also disable isel load folding if -fast.

llvm-svn: 29956

handling.)

llvm-svn: 29954

llvm-svn: 29953

llvm-svn: 29952

Move isCommutativeBinOp from SelectionDAG.cpp and DAGCombiner.cpp out. Make it a static method of SelectionDAG.

llvm-svn: 29951

llvm-svn: 29950

there are clearly some encoding bugs lurking in there somewhere.

llvm-svn: 29949

and simplifies expressions. This implements the optimization described
in PR807.

llvm-svn: 29947

llvm-svn: 29946

Add an optional pass to preprocess the DAG before x86 isel to allow selecting more load/mod/store instructions.

llvm-svn: 29943

gccas on 252.eon

llvm-svn: 29936

Close out this long standing bug by removing the remaining overloaded
virtual functions in LLVM. The -Woverloaded-virtual option is now turned on.

llvm-svn: 29934

llvm-svn: 29932

llvm-svn: 29929

llvm-svn: 29925

llvm-svn: 29922

llvm-svn: 29921

something is a pass vs an analysis group now.  Simplify interfaces.

llvm-svn: 29920

llvm-svn: 29917

llvm-svn: 29911

llvm-svn: 29910

anchor methods to others.  This eliminates the vtable/template method bloat
in .o files that defining a cl::opt used to impose (~4K per .o file for one
cp::opt<unsigned>).

llvm-svn: 29909

SDOperand arguments. Use the variants which take an array and number instead.

llvm-svn: 29907

3 SDOperand operands. They are replaced by versions which take an array
of SDOperand and the number of operands.

llvm-svn: 29905

ppc target, not the itanium target, when run on an itanium machine.
This should fix the CodeGen/PowerPC regtest failures on itanium.

llvm-svn: 29903

entries in the correct order, fixing several fixmes.

llvm-svn: 29902

llvm-svn: 29901

llvm-svn: 29898

llvm-svn: 29896

llvm-svn: 29895