Fix for the original bug in PR5495 - Look at uses as well as defs when determining the PHI-copy insert point.

- Patch by Andrew Canis!

llvm-svn: 88880

conservatively. eliminateFrameIndex() machinery adjust to handle addr mode
6 (vld1/vst1) used for spills. Fix tests to expect aligned Q-reg spilling

llvm-svn: 88874

llvm-svn: 88873

This allows JT to eliminate a ton of infeasible edges when
handling code like the templates in PatternMatch.h

llvm-svn: 88869

some conditionals

llvm-svn: 88868

(because the invalidation logic is missing) but LVI isn't enabled
by default anyway.

llvm-svn: 88867

and LVIQuery classes, no functionality change.

llvm-svn: 88866

llvm-svn: 88865

llvm-svn: 88864

bug 5438.

llvm-svn: 88855

llvm-svn: 88849

grief. I suspect this patch merely exposed a bug else.

llvm-svn: 88841

zext(icmp). It may be able to optimize that away. This fixes one of the cases
in PR5438.

llvm-svn: 88830

Added an assert to the PBQP allocator to catch infinite cost solutions which might otherwise lead to miscompilations.

llvm-svn: 88829

llvm-svn: 88818

properly detect my Xeon box though.

llvm-svn: 88814

llvm-svn: 88813

llvm-svn: 88812

merges, and until then, it's useful to keep the tables separate for ease
of manipulation.

llvm-svn: 88806

llvm-svn: 88805

llvm-svn: 88804

llvm-svn: 88802

llvm-svn: 88800

forward declaration and patching tblgen to emit it right. Patch by Amine Khaldi!

llvm-svn: 88798

 - This is an initial step towards -march=native support in Clang, and towards
   eliminating host dependencies in the targets. See PR5389.

 - Patch by Roman Divacky!

llvm-svn: 88768

ultimately never used.

llvm-svn: 88763

llvm-svn: 88762

llvm-svn: 88761

allocated until runtime (such as an alloca). Patch by Hans Wennborg!

llvm-svn: 88760

Added getSubRegIndex(A,B) that returns subreg index of A to B. Use it to replace broken code in VirtRegRewriter.

llvm-svn: 88753

- If destination is a physical register and it has a subreg index, use the
  sub-register instead.
This fixes PR5423.

llvm-svn: 88745

llvm-svn: 88742

llvm-svn: 88738

llvm-svn: 88737

llvm-svn: 88734

When splitting an edge after a machine basic block with fall-through, we
forgot to insert a jump instruction. Fix this by calling updateTerminator() on
the fall-through block when relevant.

Also be more precise in PHIElimination::isLiveIn.

llvm-svn: 88728

llvm-svn: 88727

PreAllocSplitting is now using this API to insert code.

llvm-svn: 88725

llvm-svn: 88719

llvm-svn: 88716