[test] Expand a bit on the test case from r231251. NFC.

llvm-svn: 231346

[Modules] Fix crash in Preprocessor::getLastMacroWithSpelling().

Macro names that got undefined inside a module may not have their MacroInfo set.

llvm-svn: 231251

[ASTUnit] Fix crash when trying to load a module file via ASTUnit::LoadFromASTFile.

rdar://19997358

llvm-svn: 231060

Have the parser initialize Sema before it consumes the first
token. This is important because the first token could actually be
after an #include that triggers a module import, which might use
either

Have the parser initialize Sema before it consumes the first
token. This is important because the first token could actually be
after an #include that triggers a module import, which might use
either Sema or the AST consumer before it would have been initialized.

llvm-svn: 167423

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Allow -verify directives to be filtered by preprocessing.

This is accomplished by making VerifyDiagnosticsConsumer a CommentHandler,
which then only reads the -verify directives that are actually in

Allow -verify directives to be filtered by preprocessing.

This is accomplished by making VerifyDiagnosticsConsumer a CommentHandler,
which then only reads the -verify directives that are actually in live
blocks of code. It also makes it simpler to handle -verify directives that
appear in header files, though we still have to manually reparse some files
depending on how they are generated.

This requires some test changes. In particular, all PCH tests now have their
-verify directives outside the "header" portion of the file, using the @line
syntax added in r159978. Other tests have been modified mostly to make it
clear what is being tested, and to prevent polluting the expected output with
the directives themselves.

Patch by Andy Gibbs! (with slight modifications)

The new Frontend/verify-* tests exercise the functionality of this commit,
as well as r159978, r159979, and r160053 (Andy's other -verify enhancements).

llvm-svn: 160068

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Re-uglify #public and #private to #__public_macro and #__private_macro.

llvm-svn: 147469

Under -fmodules, accept #public <macroname> and #private <macroname>
to make a macro public (the default for headers) or private,
respectively.

llvm-svn: 147455

When building a module with an umbrella header, warn about any headers
found within that umbrella directory that were not actually included
by the umbrella header. They should either be referenced in

When building a module with an umbrella header, warn about any headers
found within that umbrella directory that were not actually included
by the umbrella header. They should either be referenced in the module
map or included by the umbrella header.

llvm-svn: 147207

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Implement inferred submodules support, which (when requested)
implicitly generates submodules corresponding to the headers that fall
within a module.

llvm-svn: 145887

For modules, all macros that aren't include guards are implicitly
public. Add a __private_macro__ directive to hide a macro, similar to
the __module_private__ declaration specifier.

llvm-svn: 142188

Add an experimental flag -fauto-module-import that automatically turns
#include or #import direcctives of framework headers into module
imports of the corresponding framework module.

llvm-svn: 139860

Teach LangOptions::resetNonModularOptions to actually do what it says it does

llvm-svn: 139791

When building a module on-demand, clear out the "non-modular" language
and preprocessor options (such as macro definitions) first.

llvm-svn: 139638

When an import statement fails to find a module in the module cache,
but there is a corresponding umbrella header in a framework, build the
module on-the-fly so it can be immediately loaded at the im

When an import statement fails to find a module in the module cache,
but there is a corresponding umbrella header in a framework, build the
module on-the-fly so it can be immediately loaded at the import
statement. This is very much proof-of-concept code, with details to be
fleshed out over time.

llvm-svn: 139558

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