Modified ms-build configuration file to be version locked to the VS2010 toolchain, this avoids conflicts with having VS2012 and 
Win7SDK used at the same time.



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Clean up some usage of Triple.  The base class has methods for determining if the target is iOS and Linux.

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include/llvm/Support/UnicodeCharRanges.h:56:5: error:
use of this statement in a constexpr constructor is a C++1y extension
[-Werror,-Wc++1y-extensions]
     assert(rangesAreValid());
          ^

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This should be much more clear now. It's still disabled pending testing.

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Summary:
Made UnicodeCharSet a class, perform validity checking inside its
constructor instead of each isCharInSet call, use std::binary_search instead of
own implementation.
This patch comes with a necessary change in clang (sent separately).

Reviewers: jordan_rose, klimek

Reviewed By: klimek

CC: cfe-commits, rsmith

Differential Revision: http://llvm-reviews.chandlerc.com/D1534

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Revert unintentional commit (of an unreviewed change).

Original commit message:

Add getUnrollingPreferences to TTI

Allow targets to customize the default behavior of the generic loop unrolling
transformation. This will be used by the PowerPC backend when targeting the A2
core (which is in-order with a deep pipeline), and using more aggressive
defaults is important.

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Allow targets to customize the default behavior of the generic loop unrolling
transformation. This will be used by the PowerPC backend when targeting the A2
core (which is in-order with a deep pipeline), and using more aggressive
defaults is important.

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This uses the TargetSubtargetInfo::useAA() function to control the defaults of
the -combiner-alias-analysis and -combiner-global-alias-analysis options.

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There are several optional (off-by-default) features in CodeGen that can make
use of alias analysis. These features are important for generating code for
some kinds of cores (for example the (in-order) PPC A2 core). This adds a
useAA() function to TargetSubtargetInfo to allow these features to be enabled
by default on a per-subtarget basis.

Here is the first use of this function: To control the default of the
-enable-aa-sched-mi feature.

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 - At least on OS X, it is important for correct behavior of /bin/[ that argv[0]
   is passed as written, and not as the full executable path.

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 - Also, change TestProvider interface to operate on test indices.

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32-bit absolute addressing in instructions likei this:

	mov $_f, %rsi

which is not supported in 64-bit mode.

rdar://8827134


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Vectorizer/PassManager:  I am working on moving the vectorizer out of the SCC passes. This patch moves the SLP-vectorizer and BB-vectorizer back into SCC passes for two reasons:
1. They are a kind of cannonicalization.
2. The performance measurements show that it is better to keep them in.

There should be no functional change if you are not enabling the LateVectorization mode.



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Adding VCIncludeDir and WindowsSDKDir to the msbuild configuration file.  This allows clang to find windows.h and other files in the 
sdk and visutal studio includes.



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[doxygen] Use correct variable names for external variable configuration and make EXTRA_SEARCH_MAPPINGS a "dumb" variable.

I do not think the massaging that I was doing for EXTRA_SEARCH_MAPPINGS was
truly necessary.

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Code review feedback from Eric Christopher.

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