it to visit instructions from the start of the function to the
end of the function in the first path.  This greatly speeds up
some pathological cases (e.g. PR5150).

Try #3, this time with some unneeded debug info stuff removed
which was causing dead pointers to be added to the worklist.

llvm-svn: 83818

llvm-svn: 83817

llvm-svn: 83816

llvm-svn: 83815

it to visit instructions from the start of the function to the
end of the function in the first path.  This greatly speeds up
some pathological cases (e.g. PR5150). 

llvm-svn: 83814

llvm-svn: 83813

llvm-svn: 83812

llvm-svn: 83811

into a shuffle even if it was used by another insertelement.  If the
visitation order of instcombine was wrong, this would turn a chain of
insertelements into a chain of shufflevectors, which was quite painful.

Since CollectShuffleElements handles these cases, the code can just
be nuked.

llvm-svn: 83810

llvm-svn: 83809

llvm-svn: 83808

llvm-svn: 83807

llvm-svn: 83806

llvm-svn: 83805

llvm-svn: 83804

llvm-svn: 83803

llvm-svn: 83802

llvm-svn: 83801

llvm-svn: 83800

new testcase.

llvm-svn: 83799

llvm-svn: 83798

llvm-svn: 83797

llvm-svn: 83796

llvm-svn: 83795

input the the mul is a zext from bool, just that it is all zeros
other than the low bit.  This fixes some phase ordering issues
that would cause us to miss some xforms in mul.ll when the worklist
is visited differently.

llvm-svn: 83794

llvm-svn: 83793

llvm-svn: 83792

llvm-svn: 83791

it to visit instructions from the start of the function to the
end of the function in the first path.  This greatly speeds up
some pathological cases (e.g. PR5150). 

llvm-svn: 83790

here.

llvm-svn: 83789

llvm-svn: 83788

llvm-svn: 83787

For now the metadata of sinked/hoisted instructions is still wrong, but that'll
be fixed when instructions will have debug metadata directly attached.

llvm-svn: 83786

llvm-svn: 83785

Implement proper asmprinting for the globals. This eliminates bogus "call" modifier and also adds support for offsets wrt globals.

llvm-svn: 83784

llvm-svn: 83783

llvm-svn: 83782

llvm-svn: 83781

llvm-svn: 83780

llvm-svn: 83779