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If val# def is ~0U, meaning it's defined by a PHI, and it's previously split, spill before the barrier because it's impossible to determine if all the defs are spilled in the same spill slot.


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Prevents some more overzealous deletions (mostly
in AltiVec code).



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be saved/restored in the prolog/epilog.  We need
to do this iff something in the function stores
into it.



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LHS is a foldable load, then LHS and RHS are swapped
and SetCCOpcode is changed to SETUGT.  But the later
code is expecting operands to be the wrong way round
for SETUGT, but they are not in this case, resulting
in an inverted compare.  The solution is to move the
load normalization before the correction for SETUGT.
This bug was tickled by LegalizeTypes which happened
to legalize the testcase slightly differently to
LegalizeDAG.


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Modify the cmake build system so that if it doesn't find bison, it will use the pregenerated file in from the svn (.cvs). Work only for windows for the moment. Tested on Vista64 with MSVC2008express.

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Understand that mul %x, 1 = %x.



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fixes a bunch of test-suite JIT failures on x86-64 in
-relocation-model=static mode.


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- Add a file to the VC++ project.
- Make sure the clang driver links against the Transforms library.
- Incorporate changes from patch by Dan Gohman.


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Committing a good chunk of the pre-register allocation live interval splitting pass. It's handling simple cases and appear to do good things. Next: avoid splitting an interval multiple times; renumber registers when possible; record stack slot live intervals for coloring; rematerialize defs when possible.


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Prevents DeadMachineInstructionElim from thinking
things like MTCTR are dead (fixes massive
testsuite breakage at -O0).



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std::ostream API.


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with the result number.


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LoopPass*.
 - Although less precise, this means they can be used in clients
   without RTTI (who would otherwise need to include LoopPass.h, which
   eventually includes things using dynamic_cast). This was the
   simplest solution that presented itself, but I am happy to use a
   better one if available.


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Fix incorrect testing for the end of the both strings in CStrInCStrNoCase.  This could cause a read-out-of-bounds error if s2 is smaller than s1.


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 - The old versions are still hanging around, but should be migrated
   away from.


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[PR2886] Don't look for ocaml's .opt executables; something in the autoconf/test machinery doesn't handle the period properly.

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