This is in preparation for switching the clang driver over to using LLVM's
Option library.  Richard Smith introduced most of these changes to the clang
driver in r167638.

Reviewers: espindola on IRC

Differential Revision: http://llvm-reviews.chandlerc.com/D970

llvm-svn: 183925

llvm-svn: 183924

Added some new example code that can grab all functions from any executable, and it will print out the function name, range, return type and argument types.

This example shows someone could iterate over all functions and do something intelligent with them, like create function signatures. Then two different builds could be compared to verify the API hasn't changed.

llvm-svn: 183923

llvm-svn: 183922

llvm-svn: 183921

llvm-svn: 183920

Now PathV1.h is not needed in GraphWriter.h.

llvm-svn: 183919

isFileIncluded() needed to be marked const.

llvm-svn: 183918

File override structures now contain per-source overrides for headers.

For now, modified headers are written to disk when the Migrator is done.
This is only temporary behaviour since we can expect headers to be
changed by migrating multiple source files. The changes need to be
merged after all migrations are complete.

llvm-svn: 183917

llvm-svn: 183916

llvm-svn: 183915

llvm-svn: 183914

llvm-svn: 183913

llvm-svn: 183912

llvm-svn: 183911

A more flexible container for storing overrides is required for headers. Before
a source goes through the transform pipeline, any headers it references will be
in their original state and unaffected by transforms applied to other sources.
Therefore overrides for headers need to be kept separate for each source file.

This patch doesn't introduce support for storing header overrides yet. It only
replaces the existing structure and makes any necessary changes to support it.

llvm-svn: 183910

llvm-svn: 183909

llvm-svn: 183908

llvm-svn: 183907

Execute's Data parameter is now optional, so we won't allocate memory
for it on Windows and we'll close the process handle.

The Unix code should probably do something similar to avoid accumulation
of zombie children that haven't been waited on.

Tested on Linux and Windows.

llvm-svn: 183906

When choosing a default CPU, clang used to pick ARM7TDMI (which has Thumb) even
when the more restrictive armv4 triple was specified. This should fix that.

Patch by Jeroen Hofstee.

llvm-svn: 183905

llvm-svn: 183904

llvm-svn: 183903

llvm-svn: 183902

llvm-svn: 183901

Thanks to Dmitry Shachnev for the patch
See bug #16317

llvm-svn: 183899

llvm-svn: 183898

llvm-svn: 183897

llvm-svn: 183896

llvm-svn: 183891

llvm-svn: 183890

Towards PR12457: constant expression evaluation support for __builtin_parity{,l,ll}, __builtin_ffs{,l,ll}, and __builtin_fpclassify.

llvm-svn: 183889

llvm-svn: 183888

llvm-svn: 183887

llvm-svn: 183886

not actually talking about a default constructor.

llvm-svn: 183885

implicit definition of a copy operation is deprecated. Add a warning for this
to -Wdeprecated. This warning is disabled by default for now, pending
investigation into how common this situation is.

llvm-svn: 183884

type std::nullptr_t are null pointer constants from C++11 onwards.

llvm-svn: 183883

doesn't seem to be any value in even adding a -W flag for this.

llvm-svn: 183882

 - 'register' storage class
 - dynamic exception specifications

Only the former check is enabled by default for now (the latter might be quite noisy).

llvm-svn: 183881